diff --git a/apex/appsearch/service/java/com/android/server/appsearch/AppSearchManagerService.java b/apex/appsearch/service/java/com/android/server/appsearch/AppSearchManagerService.java
index a45fa39..68c9069 100644
--- a/apex/appsearch/service/java/com/android/server/appsearch/AppSearchManagerService.java
+++ b/apex/appsearch/service/java/com/android/server/appsearch/AppSearchManagerService.java
@@ -119,8 +119,7 @@
                     }
                     schemasPackageAccessible.put(entry.getKey(), packageIdentifiers);
                 }
-                AppSearchImpl impl =
-                        mImplInstanceManager.getAppSearchImpl(getContext(), callingUserId);
+                AppSearchImpl impl = mImplInstanceManager.getAppSearchImpl(callingUserId);
                 impl.setSchema(
                         packageName,
                         databaseName,
@@ -153,7 +152,7 @@
                 verifyUserUnlocked(callingUserId);
                 verifyCallingPackage(callingUid, packageName);
                 AppSearchImpl impl =
-                        mImplInstanceManager.getAppSearchImpl(getContext(), callingUserId);
+                        mImplInstanceManager.getAppSearchImpl(callingUserId);
                 List<AppSearchSchema> schemas = impl.getSchema(packageName, databaseName);
                 List<Bundle> schemaBundles = new ArrayList<>(schemas.size());
                 for (int i = 0; i < schemas.size(); i++) {
@@ -188,7 +187,7 @@
                 AppSearchBatchResult.Builder<String, Void> resultBuilder =
                         new AppSearchBatchResult.Builder<>();
                 AppSearchImpl impl =
-                        mImplInstanceManager.getAppSearchImpl(getContext(), callingUserId);
+                        mImplInstanceManager.getAppSearchImpl(callingUserId);
                 for (int i = 0; i < documentBundles.size(); i++) {
                     GenericDocument document = new GenericDocument(documentBundles.get(i));
                     try {
@@ -231,7 +230,7 @@
                 AppSearchBatchResult.Builder<String, Bundle> resultBuilder =
                         new AppSearchBatchResult.Builder<>();
                 AppSearchImpl impl =
-                        mImplInstanceManager.getAppSearchImpl(getContext(), callingUserId);
+                        mImplInstanceManager.getAppSearchImpl(callingUserId);
                 for (int i = 0; i < uris.size(); i++) {
                     String uri = uris.get(i);
                     try {
@@ -276,7 +275,7 @@
                 verifyUserUnlocked(callingUserId);
                 verifyCallingPackage(callingUid, packageName);
                 AppSearchImpl impl =
-                        mImplInstanceManager.getAppSearchImpl(getContext(), callingUserId);
+                        mImplInstanceManager.getAppSearchImpl(callingUserId);
                 SearchResultPage searchResultPage =
                         impl.query(
                                 packageName,
@@ -311,7 +310,7 @@
                 verifyUserUnlocked(callingUserId);
                 verifyCallingPackage(callingUid, packageName);
                 AppSearchImpl impl =
-                        mImplInstanceManager.getAppSearchImpl(getContext(), callingUserId);
+                        mImplInstanceManager.getAppSearchImpl(callingUserId);
                 SearchResultPage searchResultPage =
                         impl.globalQuery(
                                 queryExpression,
@@ -342,7 +341,7 @@
             try {
                 verifyUserUnlocked(callingUserId);
                 AppSearchImpl impl =
-                        mImplInstanceManager.getAppSearchImpl(getContext(), callingUserId);
+                        mImplInstanceManager.getAppSearchImpl(callingUserId);
                 SearchResultPage searchResultPage = impl.getNextPage(nextPageToken);
                 invokeCallbackOnResult(
                         callback,
@@ -362,7 +361,7 @@
             try {
                 verifyUserUnlocked(callingUserId);
                 AppSearchImpl impl =
-                        mImplInstanceManager.getAppSearchImpl(getContext(), callingUserId);
+                        mImplInstanceManager.getAppSearchImpl(callingUserId);
                 impl.invalidateNextPageToken(nextPageToken);
             } catch (Throwable t) {
                 Log.e(TAG, "Unable to invalidate the query page token", t);
@@ -390,7 +389,7 @@
             try {
                 verifyUserUnlocked(callingUserId);
                 AppSearchImpl impl =
-                        mImplInstanceManager.getAppSearchImpl(getContext(), callingUserId);
+                        mImplInstanceManager.getAppSearchImpl(callingUserId);
                 impl.reportUsage(packageName, databaseName, namespace, uri, usageTimeMillis);
                 invokeCallbackOnResult(
                         callback, AppSearchResult.newSuccessfulResult(/*result=*/ null));
@@ -422,7 +421,7 @@
                 AppSearchBatchResult.Builder<String, Void> resultBuilder =
                         new AppSearchBatchResult.Builder<>();
                 AppSearchImpl impl =
-                        mImplInstanceManager.getAppSearchImpl(getContext(), callingUserId);
+                        mImplInstanceManager.getAppSearchImpl(callingUserId);
                 for (int i = 0; i < uris.size(); i++) {
                     String uri = uris.get(i);
                     try {
@@ -460,7 +459,7 @@
                 verifyUserUnlocked(callingUserId);
                 verifyCallingPackage(callingUid, packageName);
                 AppSearchImpl impl =
-                        mImplInstanceManager.getAppSearchImpl(getContext(), callingUserId);
+                        mImplInstanceManager.getAppSearchImpl(callingUserId);
                 impl.removeByQuery(
                         packageName,
                         databaseName,
@@ -482,7 +481,7 @@
             try {
                 verifyUserUnlocked(callingUserId);
                 AppSearchImpl impl =
-                        mImplInstanceManager.getAppSearchImpl(getContext(), callingUserId);
+                        mImplInstanceManager.getAppSearchImpl(callingUserId);
                 impl.persistToDisk();
             } catch (Throwable t) {
                 Log.e(TAG, "Unable to persist the data to disk", t);
@@ -499,7 +498,7 @@
             final long callingIdentity = Binder.clearCallingIdentity();
             try {
                 verifyUserUnlocked(callingUserId);
-                mImplInstanceManager.getAppSearchImpl(getContext(), callingUserId);
+                mImplInstanceManager.getOrCreateAppSearchImpl(getContext(), callingUserId);
                 invokeCallbackOnResult(callback, AppSearchResult.newSuccessfulResult(null));
             } catch (Throwable t) {
                 invokeCallbackOnError(callback, t);
@@ -571,6 +570,7 @@
         private void invokeCallbackOnError(
                 IAppSearchBatchResultCallback callback, Throwable throwable) {
             try {
+                //TODO(b/175067650) verify ParcelableException could propagate throwable correctly.
                 callback.onSystemError(new ParcelableException(throwable));
             } catch (RemoteException e) {
                 Log.e(TAG, "Unable to send error to the callback", e);
diff --git a/apex/appsearch/service/java/com/android/server/appsearch/ImplInstanceManager.java b/apex/appsearch/service/java/com/android/server/appsearch/ImplInstanceManager.java
index 82319d4..8c953d1 100644
--- a/apex/appsearch/service/java/com/android/server/appsearch/ImplInstanceManager.java
+++ b/apex/appsearch/service/java/com/android/server/appsearch/ImplInstanceManager.java
@@ -74,7 +74,7 @@
     }
 
     /**
-     * Gets an instance of AppSearchImpl for the given user.
+     * Gets an instance of AppSearchImpl for the given user, or creates one if none exists.
      *
      * <p>If no AppSearchImpl instance exists for the unlocked user, Icing will be initialized and
      * one will be created.
@@ -84,7 +84,7 @@
      * @return An initialized {@link AppSearchImpl} for this user
      */
     @NonNull
-    public AppSearchImpl getAppSearchImpl(
+    public AppSearchImpl getOrCreateAppSearchImpl(
             @NonNull Context context, @UserIdInt int userId) throws AppSearchException {
         synchronized (mInstancesLocked) {
             AppSearchImpl instance = mInstancesLocked.get(userId);
@@ -96,6 +96,32 @@
         }
     }
 
+
+    /**
+     * Gets an instance of AppSearchImpl for the given user.
+     *
+     * <p>This method should only be called by an initialized SearchSession, which has been already
+     * created the AppSearchImpl instance for the given user.
+     *
+     * @param userId The multi-user userId of the device user calling AppSearch
+     * @return An initialized {@link AppSearchImpl} for this user
+     * @throws IllegalStateException if {@link AppSearchImpl} haven't created for the given user.
+     */
+    @NonNull
+    public AppSearchImpl getAppSearchImpl(@UserIdInt int userId) {
+        synchronized (mInstancesLocked) {
+            AppSearchImpl instance = mInstancesLocked.get(userId);
+            if (instance == null) {
+                // Impossible scenario, user cannot call an uninitialized SearchSession,
+                // getInstance should always find the instance for the given user and never try to
+                // create an instance for this user again.
+                throw new IllegalStateException(
+                        "AppSearchImpl has never been created for this user: " + userId);
+            }
+            return instance;
+        }
+    }
+
     private AppSearchImpl createImpl(@NonNull Context context, @UserIdInt int userId)
             throws AppSearchException {
         File appSearchDir = getAppSearchDir(context, userId);
@@ -104,6 +130,7 @@
 
     private static File getAppSearchDir(@NonNull Context context, @UserIdInt int userId) {
         // See com.android.internal.app.ChooserActivity::getPinnedSharedPrefs
+        //TODO(b/177685938):Switch from getDataUserCePackageDirectory to getDataSystemCeDirectory
         File userCeDir =
                 Environment.getDataUserCePackageDirectory(
                         StorageManager.UUID_PRIVATE_INTERNAL, userId, context.getPackageName());
diff --git a/apex/appsearch/testing/Android.bp b/apex/appsearch/testing/Android.bp
index eb072af..3c5082e 100644
--- a/apex/appsearch/testing/Android.bp
+++ b/apex/appsearch/testing/Android.bp
@@ -30,5 +30,8 @@
         "guava",
         "truth-prebuilt",
     ],
-    visibility: ["//cts/tests/appsearch"],
+    visibility: [
+        "//cts/tests/appsearch",
+        "//vendor:__subpackages__",
+    ],
 }
diff --git a/apex/jobscheduler/service/java/com/android/server/job/JobConcurrencyManager.java b/apex/jobscheduler/service/java/com/android/server/job/JobConcurrencyManager.java
index 0308d68..460763a 100644
--- a/apex/jobscheduler/service/java/com/android/server/job/JobConcurrencyManager.java
+++ b/apex/jobscheduler/service/java/com/android/server/job/JobConcurrencyManager.java
@@ -25,6 +25,7 @@
 import android.app.ActivityManagerInternal;
 import android.app.UserSwitchObserver;
 import android.app.job.JobInfo;
+import android.app.job.JobParameters;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
@@ -469,7 +470,7 @@
         // Update the priorities of jobs that aren't running, and also count the pending work types.
         // Do this before the following loop to hopefully reduce the cost of
         // shouldStopRunningJobLocked().
-        updateNonRunningPriorities(pendingJobs, true);
+        updateNonRunningPrioritiesLocked(pendingJobs, true);
 
         for (int i = 0; i < MAX_JOB_CONTEXTS_COUNT; i++) {
             final JobServiceContext js = activeServices.get(i);
@@ -585,7 +586,8 @@
                                 + activeServices.get(i).getRunningJobLocked());
                     }
                     // preferredUid will be set to uid of currently running job.
-                    activeServices.get(i).preemptExecutingJobLocked(preemptReasonForContext[i]);
+                    activeServices.get(i).cancelExecutingJobLocked(
+                            JobParameters.REASON_PREEMPT, preemptReasonForContext[i]);
                     preservePreferredUid = true;
                 } else {
                     final JobStatus pendingJob = contextIdToJobMap[i];
@@ -610,7 +612,8 @@
                 mWorkCountTracker.getRunningJobCount(WORK_TYPE_TOP));
     }
 
-    private void updateNonRunningPriorities(@NonNull final List<JobStatus> pendingJobs,
+    @GuardedBy("mLock")
+    private void updateNonRunningPrioritiesLocked(@NonNull final List<JobStatus> pendingJobs,
             boolean updateCounter) {
         for (int i = 0; i < pendingJobs.size(); i++) {
             final JobStatus pending = pendingJobs.get(i);
@@ -628,6 +631,7 @@
         }
     }
 
+    @GuardedBy("mLock")
     private void startJobLocked(@NonNull JobServiceContext worker, @NonNull JobStatus jobStatus,
             @WorkType final int workType) {
         final List<StateController> controllers = mService.mControllers;
@@ -647,6 +651,7 @@
         }
     }
 
+    @GuardedBy("mLock")
     void onJobCompletedLocked(@NonNull JobServiceContext worker, @NonNull JobStatus jobStatus,
             @WorkType final int workType) {
         mWorkCountTracker.onJobFinished(workType);
@@ -655,7 +660,7 @@
         if (worker.getPreferredUid() != JobServiceContext.NO_PREFERRED_UID) {
             updateCounterConfigLocked();
             // Preemption case needs special care.
-            updateNonRunningPriorities(pendingJobs, false);
+            updateNonRunningPrioritiesLocked(pendingJobs, false);
 
             JobStatus highestPriorityJob = null;
             int highPriWorkType = workType;
@@ -726,7 +731,7 @@
             }
         } else if (pendingJobs.size() > 0) {
             updateCounterConfigLocked();
-            updateNonRunningPriorities(pendingJobs, false);
+            updateNonRunningPrioritiesLocked(pendingJobs, false);
 
             // This slot is now free and we have pending jobs. Start the highest priority job we
             // find.
@@ -775,6 +780,7 @@
      * another job to run, or if system state suggests the job should stop.
      */
     @Nullable
+    @GuardedBy("mLock")
     String shouldStopRunningJobLocked(@NonNull JobServiceContext context) {
         final JobStatus js = context.getRunningJobLocked();
         if (js == null) {
@@ -881,6 +887,7 @@
         return s.toString();
     }
 
+    @GuardedBy("mLock")
     void updateConfigLocked() {
         DeviceConfig.Properties properties =
                 DeviceConfig.getProperties(DeviceConfig.NAMESPACE_JOB_SCHEDULER);
diff --git a/apex/jobscheduler/service/java/com/android/server/job/JobServiceContext.java b/apex/jobscheduler/service/java/com/android/server/job/JobServiceContext.java
index 9673449..6802b6b 100644
--- a/apex/jobscheduler/service/java/com/android/server/job/JobServiceContext.java
+++ b/apex/jobscheduler/service/java/com/android/server/job/JobServiceContext.java
@@ -269,8 +269,6 @@
             try {
                 final int bindFlags;
                 if (job.shouldTreatAsExpeditedJob()) {
-                    // TODO(171305774): The job should run on the little cores. We'll probably need
-                    // another binding flag for that.
                     bindFlags = Context.BIND_AUTO_CREATE | Context.BIND_NOT_FOREGROUND
                             | Context.BIND_ALMOST_PERCEPTIBLE
                             | Context.BIND_ALLOW_NETWORK_ACCESS
@@ -355,15 +353,10 @@
 
     /** Called externally when a job that was scheduled for execution should be cancelled. */
     @GuardedBy("mLock")
-    void cancelExecutingJobLocked(int reason, String debugReason) {
+    void cancelExecutingJobLocked(int reason, @NonNull String debugReason) {
         doCancelLocked(reason, debugReason);
     }
 
-    @GuardedBy("mLock")
-    void preemptExecutingJobLocked(@NonNull String reason) {
-        doCancelLocked(JobParameters.REASON_PREEMPT, reason);
-    }
-
     int getPreferredUid() {
         return mPreferredUid;
     }
@@ -620,7 +613,7 @@
     }
 
     @GuardedBy("mLock")
-    private void doCancelLocked(int stopReasonCode, String debugReason) {
+    private void doCancelLocked(int stopReasonCode, @Nullable String debugReason) {
         if (mVerb == VERB_FINISHED) {
             if (DEBUG) {
                 Slog.d(TAG,
@@ -733,7 +726,7 @@
      *     _ENDING     -> No point in doing anything here, so we ignore.
      */
     @GuardedBy("mLock")
-    private void handleCancelLocked(String reason) {
+    private void handleCancelLocked(@Nullable String reason) {
         if (JobSchedulerService.DEBUG) {
             Slog.d(TAG, "Handling cancel for: " + mRunningJob.getJobId() + " "
                     + VERB_STRINGS[mVerb]);
@@ -817,7 +810,7 @@
      * VERB_STOPPING.
      */
     @GuardedBy("mLock")
-    private void sendStopMessageLocked(String reason) {
+    private void sendStopMessageLocked(@Nullable String reason) {
         removeOpTimeOutLocked();
         if (mVerb != VERB_EXECUTING) {
             Slog.e(TAG, "Sending onStopJob for a job that isn't started. " + mRunningJob);
@@ -843,7 +836,7 @@
      * we want to clean up internally.
      */
     @GuardedBy("mLock")
-    private void closeAndCleanupJobLocked(boolean reschedule, String reason) {
+    private void closeAndCleanupJobLocked(boolean reschedule, @Nullable String reason) {
         final JobStatus completedJob;
         if (mVerb == VERB_FINISHED) {
             return;
@@ -889,7 +882,7 @@
         mJobConcurrencyManager.onJobCompletedLocked(this, completedJob, workType);
     }
 
-    private void applyStoppedReasonLocked(String reason) {
+    private void applyStoppedReasonLocked(@Nullable String reason) {
         if (reason != null && mStoppedReason == null) {
             mStoppedReason = reason;
             mStoppedTime = sElapsedRealtimeClock.millis();
diff --git a/core/api/current.txt b/core/api/current.txt
index a06f994..b8a4ca4 100644
--- a/core/api/current.txt
+++ b/core/api/current.txt
@@ -1072,6 +1072,7 @@
     field public static final int panelTextAppearance = 16842850; // 0x1010062
     field public static final int parentActivityName = 16843687; // 0x10103a7
     field @Deprecated public static final int password = 16843100; // 0x101015c
+    field public static final int passwordsActivity = 16844351; // 0x101063f
     field public static final int path = 16842794; // 0x101002a
     field public static final int pathAdvancedPattern = 16844320; // 0x1010620
     field public static final int pathData = 16843781; // 0x1010405
@@ -17771,6 +17772,7 @@
     field @NonNull public static final android.hardware.camera2.CameraCharacteristics.Key<android.util.Size> SCALER_DEFAULT_SECURE_IMAGE_SIZE;
     field @NonNull public static final android.hardware.camera2.CameraCharacteristics.Key<android.hardware.camera2.params.MandatoryStreamCombination[]> SCALER_MANDATORY_CONCURRENT_STREAM_COMBINATIONS;
     field @NonNull public static final android.hardware.camera2.CameraCharacteristics.Key<android.hardware.camera2.params.MandatoryStreamCombination[]> SCALER_MANDATORY_STREAM_COMBINATIONS;
+    field @NonNull public static final android.hardware.camera2.CameraCharacteristics.Key<android.hardware.camera2.params.MultiResolutionStreamConfigurationMap> SCALER_MULTI_RESOLUTION_STREAM_CONFIGURATION_MAP;
     field @NonNull public static final android.hardware.camera2.CameraCharacteristics.Key<android.hardware.camera2.params.StreamConfigurationMap> SCALER_STREAM_CONFIGURATION_MAP;
     field @NonNull public static final android.hardware.camera2.CameraCharacteristics.Key<int[]> SENSOR_AVAILABLE_TEST_PATTERN_MODES;
     field @NonNull public static final android.hardware.camera2.CameraCharacteristics.Key<android.hardware.camera2.params.BlackLevelPattern> SENSOR_BLACK_LEVEL_PATTERN;
@@ -18375,9 +18377,20 @@
     field public static final int MAX_THUMBNAIL_DIMENSION = 256; // 0x100
   }
 
+  public class MultiResolutionImageReader implements java.lang.AutoCloseable {
+    method public void close();
+    method protected void finalize();
+    method public void flush();
+    method @NonNull public android.hardware.camera2.params.MultiResolutionStreamInfo getStreamInfoForImageReader(@NonNull android.media.ImageReader);
+    method @NonNull public android.view.Surface getSurface();
+    method @NonNull public static android.hardware.camera2.MultiResolutionImageReader newInstance(@NonNull java.util.Collection<android.hardware.camera2.params.MultiResolutionStreamInfo>, int, @IntRange(from=1) int);
+    method public void setOnImageAvailableListener(@Nullable android.media.ImageReader.OnImageAvailableListener, @Nullable java.util.concurrent.Executor);
+  }
+
   public final class TotalCaptureResult extends android.hardware.camera2.CaptureResult {
     method @NonNull public java.util.List<android.hardware.camera2.CaptureResult> getPartialResults();
-    method public java.util.Map<java.lang.String,android.hardware.camera2.CaptureResult> getPhysicalCameraResults();
+    method @Deprecated public java.util.Map<java.lang.String,android.hardware.camera2.CaptureResult> getPhysicalCameraResults();
+    method @NonNull public java.util.Map<java.lang.String,android.hardware.camera2.TotalCaptureResult> getPhysicalCameraTotalResults();
   }
 
 }
@@ -18426,9 +18439,11 @@
 
   public final class InputConfiguration {
     ctor public InputConfiguration(int, int, int);
+    ctor public InputConfiguration(@NonNull java.util.Collection<android.hardware.camera2.params.MultiResolutionStreamInfo>, int);
     method public int getFormat();
     method public int getHeight();
     method public int getWidth();
+    method public boolean isMultiResolution();
   }
 
   public final class LensShadingMap {
@@ -18471,6 +18486,20 @@
     field public static final int METERING_WEIGHT_MIN = 0; // 0x0
   }
 
+  public final class MultiResolutionStreamConfigurationMap {
+    method @NonNull public int[] getInputFormats();
+    method @NonNull public java.util.Collection<android.hardware.camera2.params.MultiResolutionStreamInfo> getInputInfo(int);
+    method @NonNull public int[] getOutputFormats();
+    method @NonNull public java.util.Collection<android.hardware.camera2.params.MultiResolutionStreamInfo> getOutputInfo(int);
+  }
+
+  public class MultiResolutionStreamInfo {
+    ctor public MultiResolutionStreamInfo(int, int, @NonNull String);
+    method public int getHeight();
+    method @NonNull public String getPhysicalCameraId();
+    method public int getWidth();
+  }
+
   public final class OisSample {
     ctor public OisSample(long, float, float);
     method public long getTimestamp();
@@ -18483,6 +18512,7 @@
     ctor public OutputConfiguration(int, @NonNull android.view.Surface);
     ctor public OutputConfiguration(@NonNull android.util.Size, @NonNull Class<T>);
     method public void addSurface(@NonNull android.view.Surface);
+    method @NonNull public static java.util.Collection<android.hardware.camera2.params.OutputConfiguration> createInstancesForMultiResolutionOutput(@NonNull android.hardware.camera2.MultiResolutionImageReader);
     method public int describeContents();
     method public void enableSurfaceSharing();
     method public int getMaxSharedSurfaceCount();
@@ -41512,29 +41542,29 @@
     field public static final char WILD = 78; // 0x004e 'N'
   }
 
-  public class PhoneStateListener {
-    ctor public PhoneStateListener();
+  @Deprecated public class PhoneStateListener {
+    ctor @Deprecated public PhoneStateListener();
     ctor @Deprecated public PhoneStateListener(@NonNull java.util.concurrent.Executor);
-    method public void onActiveDataSubscriptionIdChanged(int);
-    method public void onBarringInfoChanged(@NonNull android.telephony.BarringInfo);
-    method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onCallDisconnectCauseChanged(int, int);
-    method public void onCallForwardingIndicatorChanged(boolean);
-    method public void onCallStateChanged(int, String);
-    method public void onCellInfoChanged(java.util.List<android.telephony.CellInfo>);
-    method public void onCellLocationChanged(android.telephony.CellLocation);
-    method public void onDataActivity(int);
-    method public void onDataConnectionStateChanged(int);
-    method public void onDataConnectionStateChanged(int, int);
-    method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public void onDisplayInfoChanged(@NonNull android.telephony.TelephonyDisplayInfo);
-    method public void onEmergencyNumberListChanged(@NonNull java.util.Map<java.lang.Integer,java.util.List<android.telephony.emergency.EmergencyNumber>>);
-    method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onImsCallDisconnectCauseChanged(@NonNull android.telephony.ims.ImsReasonInfo);
-    method public void onMessageWaitingIndicatorChanged(boolean);
-    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void onPreciseDataConnectionStateChanged(@NonNull android.telephony.PreciseDataConnectionState);
-    method public void onRegistrationFailed(@NonNull android.telephony.CellIdentity, @NonNull String, int, int, int);
-    method public void onServiceStateChanged(android.telephony.ServiceState);
+    method @Deprecated public void onActiveDataSubscriptionIdChanged(int);
+    method @Deprecated public void onBarringInfoChanged(@NonNull android.telephony.BarringInfo);
+    method @Deprecated @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onCallDisconnectCauseChanged(int, int);
+    method @Deprecated public void onCallForwardingIndicatorChanged(boolean);
+    method @Deprecated public void onCallStateChanged(int, String);
+    method @Deprecated public void onCellInfoChanged(java.util.List<android.telephony.CellInfo>);
+    method @Deprecated public void onCellLocationChanged(android.telephony.CellLocation);
+    method @Deprecated public void onDataActivity(int);
+    method @Deprecated public void onDataConnectionStateChanged(int);
+    method @Deprecated public void onDataConnectionStateChanged(int, int);
+    method @Deprecated @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public void onDisplayInfoChanged(@NonNull android.telephony.TelephonyDisplayInfo);
+    method @Deprecated public void onEmergencyNumberListChanged(@NonNull java.util.Map<java.lang.Integer,java.util.List<android.telephony.emergency.EmergencyNumber>>);
+    method @Deprecated @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onImsCallDisconnectCauseChanged(@NonNull android.telephony.ims.ImsReasonInfo);
+    method @Deprecated public void onMessageWaitingIndicatorChanged(boolean);
+    method @Deprecated @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void onPreciseDataConnectionStateChanged(@NonNull android.telephony.PreciseDataConnectionState);
+    method @Deprecated public void onRegistrationFailed(@NonNull android.telephony.CellIdentity, @NonNull String, int, int, int);
+    method @Deprecated public void onServiceStateChanged(android.telephony.ServiceState);
     method @Deprecated public void onSignalStrengthChanged(int);
-    method public void onSignalStrengthsChanged(android.telephony.SignalStrength);
-    method public void onUserMobileDataStateChanged(boolean);
+    method @Deprecated public void onSignalStrengthsChanged(android.telephony.SignalStrength);
+    method @Deprecated public void onUserMobileDataStateChanged(boolean);
     field @Deprecated public static final int LISTEN_ACTIVE_DATA_SUBSCRIPTION_ID_CHANGE = 4194304; // 0x400000
     field @Deprecated @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int LISTEN_BARRING_INFO = -2147483648; // 0x80000000
     field @Deprecated @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int LISTEN_CALL_DISCONNECT_CAUSES = 33554432; // 0x2000000
@@ -41548,7 +41578,7 @@
     field @Deprecated public static final int LISTEN_EMERGENCY_NUMBER_LIST = 16777216; // 0x1000000
     field @Deprecated @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int LISTEN_IMS_CALL_DISCONNECT_CAUSES = 134217728; // 0x8000000
     field @Deprecated public static final int LISTEN_MESSAGE_WAITING_INDICATOR = 4; // 0x4
-    field public static final int LISTEN_NONE = 0; // 0x0
+    field @Deprecated public static final int LISTEN_NONE = 0; // 0x0
     field @Deprecated @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int LISTEN_PRECISE_DATA_CONNECTION_STATE = 4096; // 0x1000
     field @Deprecated @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int LISTEN_REGISTRATION_FAILURE = 1073741824; // 0x40000000
     field @Deprecated public static final int LISTEN_SERVICE_STATE = 1; // 0x1
@@ -41557,90 +41587,6 @@
     field @Deprecated public static final int LISTEN_USER_MOBILE_DATA_STATE = 524288; // 0x80000
   }
 
-  public static interface PhoneStateListener.ActiveDataSubscriptionIdChangedListener {
-    method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public void onActiveDataSubscriptionIdChanged(int);
-  }
-
-  public static interface PhoneStateListener.AlwaysReportedSignalStrengthChangedListener {
-    method @RequiresPermission("android.permission.LISTEN_ALWAYS_REPORTED_SIGNAL_STRENGTH") public void onSignalStrengthsChanged(@NonNull android.telephony.SignalStrength);
-  }
-
-  public static interface PhoneStateListener.BarringInfoChangedListener {
-    method @RequiresPermission(allOf={android.Manifest.permission.READ_PRECISE_PHONE_STATE, android.Manifest.permission.ACCESS_FINE_LOCATION}) public void onBarringInfoChanged(@NonNull android.telephony.BarringInfo);
-  }
-
-  public static interface PhoneStateListener.CallDisconnectCauseChangedListener {
-    method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onCallDisconnectCauseChanged(int, int);
-  }
-
-  public static interface PhoneStateListener.CallForwardingIndicatorChangedListener {
-    method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public void onCallForwardingIndicatorChanged(boolean);
-  }
-
-  public static interface PhoneStateListener.CallStateChangedListener {
-    method @RequiresPermission(android.Manifest.permission.READ_CALL_LOG) public void onCallStateChanged(int, @Nullable String);
-  }
-
-  public static interface PhoneStateListener.CarrierNetworkChangeListener {
-    method public void onCarrierNetworkChange(boolean);
-  }
-
-  public static interface PhoneStateListener.CellInfoChangedListener {
-    method @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION) public void onCellInfoChanged(@NonNull java.util.List<android.telephony.CellInfo>);
-  }
-
-  public static interface PhoneStateListener.CellLocationChangedListener {
-    method @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION) public void onCellLocationChanged(@NonNull android.telephony.CellLocation);
-  }
-
-  public static interface PhoneStateListener.DataActivationStateChangedListener {
-    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void onDataActivationStateChanged(int);
-  }
-
-  public static interface PhoneStateListener.DataActivityListener {
-    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void onDataActivity(int);
-  }
-
-  public static interface PhoneStateListener.DataConnectionStateChangedListener {
-    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void onDataConnectionStateChanged(int, int);
-  }
-
-  public static interface PhoneStateListener.DisplayInfoChangedListener {
-    method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public void onDisplayInfoChanged(@NonNull android.telephony.TelephonyDisplayInfo);
-  }
-
-  public static interface PhoneStateListener.EmergencyNumberListChangedListener {
-    method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public void onEmergencyNumberListChanged(@NonNull java.util.Map<java.lang.Integer,java.util.List<android.telephony.emergency.EmergencyNumber>>);
-  }
-
-  public static interface PhoneStateListener.ImsCallDisconnectCauseChangedListener {
-    method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onImsCallDisconnectCauseChanged(@NonNull android.telephony.ims.ImsReasonInfo);
-  }
-
-  public static interface PhoneStateListener.MessageWaitingIndicatorChangedListener {
-    method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public void onMessageWaitingIndicatorChanged(boolean);
-  }
-
-  public static interface PhoneStateListener.PreciseDataConnectionStateChangedListener {
-    method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onPreciseDataConnectionStateChanged(@NonNull android.telephony.PreciseDataConnectionState);
-  }
-
-  public static interface PhoneStateListener.RegistrationFailedListener {
-    method @RequiresPermission(allOf={android.Manifest.permission.READ_PRECISE_PHONE_STATE, android.Manifest.permission.ACCESS_FINE_LOCATION}) public void onRegistrationFailed(@NonNull android.telephony.CellIdentity, @NonNull String, int, int, int);
-  }
-
-  public static interface PhoneStateListener.ServiceStateChangedListener {
-    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void onServiceStateChanged(@NonNull android.telephony.ServiceState);
-  }
-
-  public static interface PhoneStateListener.SignalStrengthsChangedListener {
-    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void onSignalStrengthsChanged(@NonNull android.telephony.SignalStrength);
-  }
-
-  public static interface PhoneStateListener.UserMobileDataStateChangedListener {
-    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void onUserMobileDataStateChanged(boolean);
-  }
-
   public final class PhysicalChannelConfig implements android.os.Parcelable {
     method public int describeContents();
     method @IntRange(from=1, to=261) public int getBand();
@@ -42115,6 +42061,94 @@
     method public android.telephony.SubscriptionPlan.Builder setTitle(@Nullable CharSequence);
   }
 
+  public class TelephonyCallback {
+    ctor public TelephonyCallback();
+  }
+
+  public static interface TelephonyCallback.ActiveDataSubscriptionIdListener {
+    method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public void onActiveDataSubscriptionIdChanged(int);
+  }
+
+  public static interface TelephonyCallback.AlwaysReportedSignalStrengthListener {
+    method @RequiresPermission("android.permission.LISTEN_ALWAYS_REPORTED_SIGNAL_STRENGTH") public void onSignalStrengthsChanged(@NonNull android.telephony.SignalStrength);
+  }
+
+  public static interface TelephonyCallback.BarringInfoListener {
+    method @RequiresPermission(allOf={android.Manifest.permission.READ_PRECISE_PHONE_STATE, android.Manifest.permission.ACCESS_FINE_LOCATION}) public void onBarringInfoChanged(@NonNull android.telephony.BarringInfo);
+  }
+
+  public static interface TelephonyCallback.CallDisconnectCauseListener {
+    method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onCallDisconnectCauseChanged(int, int);
+  }
+
+  public static interface TelephonyCallback.CallForwardingIndicatorListener {
+    method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public void onCallForwardingIndicatorChanged(boolean);
+  }
+
+  public static interface TelephonyCallback.CallStateListener {
+    method @RequiresPermission(android.Manifest.permission.READ_CALL_LOG) public void onCallStateChanged(int, @Nullable String);
+  }
+
+  public static interface TelephonyCallback.CarrierNetworkListener {
+    method public void onCarrierNetworkChange(boolean);
+  }
+
+  public static interface TelephonyCallback.CellInfoListener {
+    method @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION) public void onCellInfoChanged(@NonNull java.util.List<android.telephony.CellInfo>);
+  }
+
+  public static interface TelephonyCallback.CellLocationListener {
+    method @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION) public void onCellLocationChanged(@NonNull android.telephony.CellLocation);
+  }
+
+  public static interface TelephonyCallback.DataActivationStateListener {
+    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void onDataActivationStateChanged(int);
+  }
+
+  public static interface TelephonyCallback.DataActivityListener {
+    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void onDataActivity(int);
+  }
+
+  public static interface TelephonyCallback.DataConnectionStateListener {
+    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void onDataConnectionStateChanged(int, int);
+  }
+
+  public static interface TelephonyCallback.DisplayInfoListener {
+    method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public void onDisplayInfoChanged(@NonNull android.telephony.TelephonyDisplayInfo);
+  }
+
+  public static interface TelephonyCallback.EmergencyNumberListListener {
+    method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public void onEmergencyNumberListChanged(@NonNull java.util.Map<java.lang.Integer,java.util.List<android.telephony.emergency.EmergencyNumber>>);
+  }
+
+  public static interface TelephonyCallback.ImsCallDisconnectCauseListener {
+    method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onImsCallDisconnectCauseChanged(@NonNull android.telephony.ims.ImsReasonInfo);
+  }
+
+  public static interface TelephonyCallback.MessageWaitingIndicatorListener {
+    method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public void onMessageWaitingIndicatorChanged(boolean);
+  }
+
+  public static interface TelephonyCallback.PreciseDataConnectionStateListener {
+    method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onPreciseDataConnectionStateChanged(@NonNull android.telephony.PreciseDataConnectionState);
+  }
+
+  public static interface TelephonyCallback.RegistrationFailedListener {
+    method @RequiresPermission(allOf={android.Manifest.permission.READ_PRECISE_PHONE_STATE, android.Manifest.permission.ACCESS_FINE_LOCATION}) public void onRegistrationFailed(@NonNull android.telephony.CellIdentity, @NonNull String, int, int, int);
+  }
+
+  public static interface TelephonyCallback.ServiceStateListener {
+    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void onServiceStateChanged(@NonNull android.telephony.ServiceState);
+  }
+
+  public static interface TelephonyCallback.SignalStrengthsListener {
+    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void onSignalStrengthsChanged(@NonNull android.telephony.SignalStrength);
+  }
+
+  public static interface TelephonyCallback.UserMobileDataStateListener {
+    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void onUserMobileDataStateChanged(boolean);
+  }
+
   public final class TelephonyDisplayInfo implements android.os.Parcelable {
     method public int describeContents();
     method public int getNetworkType();
@@ -42227,7 +42261,7 @@
     method public boolean isVoicemailVibrationEnabled(android.telecom.PhoneAccountHandle);
     method public boolean isWorldPhone();
     method @Deprecated public void listen(android.telephony.PhoneStateListener, int);
-    method public void registerPhoneStateListener(@NonNull java.util.concurrent.Executor, @NonNull android.telephony.PhoneStateListener);
+    method public void registerTelephonyCallback(@NonNull java.util.concurrent.Executor, @NonNull android.telephony.TelephonyCallback);
     method @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION) public void requestCellInfoUpdate(@NonNull java.util.concurrent.Executor, @NonNull android.telephony.TelephonyManager.CellInfoCallback);
     method @RequiresPermission(allOf={android.Manifest.permission.MODIFY_PHONE_STATE, android.Manifest.permission.ACCESS_FINE_LOCATION}) public android.telephony.NetworkScan requestNetworkScan(android.telephony.NetworkScanRequest, java.util.concurrent.Executor, android.telephony.TelephonyScanManager.NetworkScanCallback);
     method public void sendDialerSpecialCode(String);
@@ -42251,7 +42285,7 @@
     method @Deprecated public void setVoicemailRingtoneUri(android.telecom.PhoneAccountHandle, android.net.Uri);
     method @Deprecated public void setVoicemailVibrationEnabled(android.telecom.PhoneAccountHandle, boolean);
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void switchMultiSimConfig(int);
-    method public void unregisterPhoneStateListener(@NonNull android.telephony.PhoneStateListener);
+    method public void unregisterTelephonyCallback(@NonNull android.telephony.TelephonyCallback);
     method public void updateAvailableNetworks(@NonNull java.util.List<android.telephony.AvailableNetworkInfo>, @Nullable java.util.concurrent.Executor, @Nullable java.util.function.Consumer<java.lang.Integer>);
     method public void uploadCallComposerPicture(@NonNull java.nio.file.Path, @NonNull String, @NonNull java.util.concurrent.Executor, @NonNull android.os.OutcomeReceiver<android.os.ParcelUuid,android.telephony.TelephonyManager.CallComposerException>);
     method public void uploadCallComposerPicture(@NonNull java.io.InputStream, @NonNull String, @NonNull java.util.concurrent.Executor, @NonNull android.os.OutcomeReceiver<android.os.ParcelUuid,android.telephony.TelephonyManager.CallComposerException>);
diff --git a/core/api/module-lib-current.txt b/core/api/module-lib-current.txt
index d6786f8..ad2942a 100644
--- a/core/api/module-lib-current.txt
+++ b/core/api/module-lib-current.txt
@@ -35,7 +35,7 @@
   }
 
   public final class PendingIntent implements android.os.Parcelable {
-    method @Nullable @RequiresPermission(android.Manifest.permission.GET_INTENT_SENDER_INTENT) public java.util.List<android.content.pm.ResolveInfo> queryIntentComponents(int);
+    method @NonNull @RequiresPermission(android.Manifest.permission.GET_INTENT_SENDER_INTENT) public java.util.List<android.content.pm.ResolveInfo> queryIntentComponents(int);
   }
 
   public class StatusBarManager {
diff --git a/core/api/system-current.txt b/core/api/system-current.txt
index f017243..6f36b06 100644
--- a/core/api/system-current.txt
+++ b/core/api/system-current.txt
@@ -358,6 +358,7 @@
     field public static final int config_systemGallery = 17039399; // 0x1040027
     field public static final int config_systemShell = 17039402; // 0x104002a
     field public static final int config_systemSpeechRecognizer = 17039406; // 0x104002e
+    field public static final int config_systemWifiCoexManager = 17039407; // 0x104002f
   }
 
   public static final class R.style {
@@ -3449,6 +3450,10 @@
     field @Deprecated public static final int LIGHT_TYPE_MICROPHONE = 8; // 0x8
   }
 
+  public static final class LightsRequest.Builder {
+    method @Deprecated @NonNull public android.hardware.lights.LightsRequest.Builder setLight(@NonNull android.hardware.lights.Light, @NonNull android.hardware.lights.LightState);
+  }
+
 }
 
 package android.hardware.location {
@@ -11072,51 +11077,16 @@
     method public static boolean isVoiceMailNumber(@NonNull android.content.Context, int, @Nullable String);
   }
 
-  public class PhoneStateListener {
-    method public void onCallAttributesChanged(@NonNull android.telephony.CallAttributes);
+  @Deprecated public class PhoneStateListener {
+    method @Deprecated public void onCallAttributesChanged(@NonNull android.telephony.CallAttributes);
     method @Deprecated public void onOutgoingEmergencyCall(@NonNull android.telephony.emergency.EmergencyNumber);
-    method public void onOutgoingEmergencyCall(@NonNull android.telephony.emergency.EmergencyNumber, int);
+    method @Deprecated public void onOutgoingEmergencyCall(@NonNull android.telephony.emergency.EmergencyNumber, int);
     method @Deprecated public void onOutgoingEmergencySms(@NonNull android.telephony.emergency.EmergencyNumber);
-    method public void onOutgoingEmergencySms(@NonNull android.telephony.emergency.EmergencyNumber, int);
-    method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onPreciseCallStateChanged(@NonNull android.telephony.PreciseCallState);
-    method public void onRadioPowerStateChanged(int);
-    method public void onSrvccStateChanged(int);
-    method public void onVoiceActivationStateChanged(int);
-    field @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public static final int EVENT_ACTIVE_DATA_SUBSCRIPTION_ID_CHANGED = 23; // 0x17
-    field @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public static final int EVENT_ALLOWED_NETWORK_TYPE_LIST_CHANGED = 35; // 0x23
-    field @RequiresPermission("android.permission.LISTEN_ALWAYS_REPORTED_SIGNAL_STRENGTH") public static final int EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED = 10; // 0xa
-    field @RequiresPermission(allOf={android.Manifest.permission.READ_PRECISE_PHONE_STATE, android.Manifest.permission.ACCESS_FINE_LOCATION}) public static final int EVENT_BARRING_INFO_CHANGED = 32; // 0x20
-    field @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int EVENT_CALL_ATTRIBUTES_CHANGED = 27; // 0x1b
-    field @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int EVENT_CALL_DISCONNECT_CAUSE_CHANGED = 26; // 0x1a
-    field @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public static final int EVENT_CALL_FORWARDING_INDICATOR_CHANGED = 4; // 0x4
-    field @RequiresPermission(android.Manifest.permission.READ_CALL_LOG) public static final int EVENT_CALL_STATE_CHANGED = 6; // 0x6
-    field public static final int EVENT_CARRIER_NETWORK_CHANGED = 17; // 0x11
-    field @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION) public static final int EVENT_CELL_INFO_CHANGED = 11; // 0xb
-    field @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION) public static final int EVENT_CELL_LOCATION_CHANGED = 5; // 0x5
-    field public static final int EVENT_DATA_ACTIVATION_STATE_CHANGED = 19; // 0x13
-    field public static final int EVENT_DATA_ACTIVITY_CHANGED = 8; // 0x8
-    field @Deprecated @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int EVENT_DATA_CONNECTION_REAL_TIME_INFO_CHANGED = 14; // 0xe
-    field public static final int EVENT_DATA_CONNECTION_STATE_CHANGED = 7; // 0x7
-    field @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int EVENT_DATA_ENABLED_CHANGED = 34; // 0x22
-    field public static final int EVENT_DISPLAY_INFO_CHANGED = 21; // 0x15
-    field @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public static final int EVENT_EMERGENCY_NUMBER_LIST_CHANGED = 25; // 0x19
-    field @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int EVENT_IMS_CALL_DISCONNECT_CAUSE_CHANGED = 28; // 0x1c
-    field @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public static final int EVENT_MESSAGE_WAITING_INDICATOR_CHANGED = 3; // 0x3
-    field @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public static final int EVENT_OEM_HOOK_RAW = 15; // 0xf
-    field @RequiresPermission(android.Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION) public static final int EVENT_OUTGOING_EMERGENCY_CALL = 29; // 0x1d
-    field @RequiresPermission(android.Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION) public static final int EVENT_OUTGOING_EMERGENCY_SMS = 30; // 0x1e
-    field public static final int EVENT_PHONE_CAPABILITY_CHANGED = 22; // 0x16
-    field @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int EVENT_PHYSICAL_CHANNEL_CONFIG_CHANGED = 33; // 0x21
-    field @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int EVENT_PRECISE_CALL_STATE_CHANGED = 12; // 0xc
-    field @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int EVENT_PRECISE_DATA_CONNECTION_STATE_CHANGED = 13; // 0xd
-    field @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public static final int EVENT_RADIO_POWER_STATE_CHANGED = 24; // 0x18
-    field @RequiresPermission(allOf={android.Manifest.permission.READ_PRECISE_PHONE_STATE, android.Manifest.permission.ACCESS_FINE_LOCATION}) public static final int EVENT_REGISTRATION_FAILURE = 31; // 0x1f
-    field public static final int EVENT_SERVICE_STATE_CHANGED = 1; // 0x1
-    field public static final int EVENT_SIGNAL_STRENGTHS_CHANGED = 9; // 0x9
-    field public static final int EVENT_SIGNAL_STRENGTH_CHANGED = 2; // 0x2
-    field @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public static final int EVENT_SRVCC_STATE_CHANGED = 16; // 0x10
-    field public static final int EVENT_USER_MOBILE_DATA_STATE_CHANGED = 20; // 0x14
-    field @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public static final int EVENT_VOICE_ACTIVATION_STATE_CHANGED = 18; // 0x12
+    method @Deprecated public void onOutgoingEmergencySms(@NonNull android.telephony.emergency.EmergencyNumber, int);
+    method @Deprecated @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onPreciseCallStateChanged(@NonNull android.telephony.PreciseCallState);
+    method @Deprecated public void onRadioPowerStateChanged(int);
+    method @Deprecated public void onSrvccStateChanged(int);
+    method @Deprecated public void onVoiceActivationStateChanged(int);
     field @Deprecated @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int LISTEN_CALL_ATTRIBUTES_CHANGED = 67108864; // 0x4000000
     field @Deprecated @RequiresPermission(android.Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION) public static final int LISTEN_OUTGOING_EMERGENCY_CALL = 268435456; // 0x10000000
     field @Deprecated @RequiresPermission(android.Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION) public static final int LISTEN_OUTGOING_EMERGENCY_SMS = 536870912; // 0x20000000
@@ -11126,50 +11096,6 @@
     field @Deprecated @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public static final int LISTEN_VOICE_ACTIVATION_STATE = 131072; // 0x20000
   }
 
-  public static interface PhoneStateListener.AllowedNetworkTypesChangedListener {
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void onAllowedNetworkTypesChanged(@NonNull java.util.Map<java.lang.Integer,java.lang.Long>);
-  }
-
-  public static interface PhoneStateListener.CallAttributesChangedListener {
-    method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onCallAttributesChanged(@NonNull android.telephony.CallAttributes);
-  }
-
-  public static interface PhoneStateListener.DataEnabledChangedListener {
-    method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onDataEnabledChanged(boolean, int);
-  }
-
-  public static interface PhoneStateListener.OutgoingEmergencyCallListener {
-    method @RequiresPermission(android.Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION) public void onOutgoingEmergencyCall(@NonNull android.telephony.emergency.EmergencyNumber, int);
-  }
-
-  public static interface PhoneStateListener.OutgoingEmergencySmsListener {
-    method @RequiresPermission(android.Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION) public void onOutgoingEmergencySms(@NonNull android.telephony.emergency.EmergencyNumber, int);
-  }
-
-  public static interface PhoneStateListener.PhoneCapabilityChangedListener {
-    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void onPhoneCapabilityChanged(@NonNull android.telephony.PhoneCapability);
-  }
-
-  public static interface PhoneStateListener.PhysicalChannelConfigChangedListener {
-    method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onPhysicalChannelConfigChanged(@NonNull java.util.List<android.telephony.PhysicalChannelConfig>);
-  }
-
-  public static interface PhoneStateListener.PreciseCallStateChangedListener {
-    method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onPreciseCallStateChanged(@NonNull android.telephony.PreciseCallState);
-  }
-
-  public static interface PhoneStateListener.RadioPowerStateChangedListener {
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void onRadioPowerStateChanged(int);
-  }
-
-  public static interface PhoneStateListener.SrvccStateChangedListener {
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void onSrvccStateChanged(int);
-  }
-
-  public static interface PhoneStateListener.VoiceActivationStateChangedListener {
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void onVoiceActivationStateChanged(int);
-  }
-
   public final class PinResult implements android.os.Parcelable {
     method public int describeContents();
     method public int getAttemptsRemaining();
@@ -11507,6 +11433,88 @@
     method @Deprecated public static android.telephony.SubscriptionPlan.Builder createRecurringWeekly(java.time.ZonedDateTime);
   }
 
+  public class TelephonyCallback {
+    field @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public static final int EVENT_ACTIVE_DATA_SUBSCRIPTION_ID_CHANGED = 23; // 0x17
+    field @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public static final int EVENT_ALLOWED_NETWORK_TYPE_LIST_CHANGED = 35; // 0x23
+    field @RequiresPermission("android.permission.LISTEN_ALWAYS_REPORTED_SIGNAL_STRENGTH") public static final int EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED = 10; // 0xa
+    field @RequiresPermission(allOf={android.Manifest.permission.READ_PRECISE_PHONE_STATE, android.Manifest.permission.ACCESS_FINE_LOCATION}) public static final int EVENT_BARRING_INFO_CHANGED = 32; // 0x20
+    field @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int EVENT_CALL_ATTRIBUTES_CHANGED = 27; // 0x1b
+    field @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int EVENT_CALL_DISCONNECT_CAUSE_CHANGED = 26; // 0x1a
+    field @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public static final int EVENT_CALL_FORWARDING_INDICATOR_CHANGED = 4; // 0x4
+    field @RequiresPermission(android.Manifest.permission.READ_CALL_LOG) public static final int EVENT_CALL_STATE_CHANGED = 6; // 0x6
+    field public static final int EVENT_CARRIER_NETWORK_CHANGED = 17; // 0x11
+    field @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION) public static final int EVENT_CELL_INFO_CHANGED = 11; // 0xb
+    field @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION) public static final int EVENT_CELL_LOCATION_CHANGED = 5; // 0x5
+    field public static final int EVENT_DATA_ACTIVATION_STATE_CHANGED = 19; // 0x13
+    field public static final int EVENT_DATA_ACTIVITY_CHANGED = 8; // 0x8
+    field @Deprecated @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int EVENT_DATA_CONNECTION_REAL_TIME_INFO_CHANGED = 14; // 0xe
+    field public static final int EVENT_DATA_CONNECTION_STATE_CHANGED = 7; // 0x7
+    field @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int EVENT_DATA_ENABLED_CHANGED = 34; // 0x22
+    field public static final int EVENT_DISPLAY_INFO_CHANGED = 21; // 0x15
+    field @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public static final int EVENT_EMERGENCY_NUMBER_LIST_CHANGED = 25; // 0x19
+    field @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int EVENT_IMS_CALL_DISCONNECT_CAUSE_CHANGED = 28; // 0x1c
+    field @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public static final int EVENT_MESSAGE_WAITING_INDICATOR_CHANGED = 3; // 0x3
+    field @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public static final int EVENT_OEM_HOOK_RAW = 15; // 0xf
+    field @RequiresPermission(android.Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION) public static final int EVENT_OUTGOING_EMERGENCY_CALL = 29; // 0x1d
+    field @RequiresPermission(android.Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION) public static final int EVENT_OUTGOING_EMERGENCY_SMS = 30; // 0x1e
+    field public static final int EVENT_PHONE_CAPABILITY_CHANGED = 22; // 0x16
+    field @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int EVENT_PHYSICAL_CHANNEL_CONFIG_CHANGED = 33; // 0x21
+    field @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int EVENT_PRECISE_CALL_STATE_CHANGED = 12; // 0xc
+    field @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public static final int EVENT_PRECISE_DATA_CONNECTION_STATE_CHANGED = 13; // 0xd
+    field @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public static final int EVENT_RADIO_POWER_STATE_CHANGED = 24; // 0x18
+    field @RequiresPermission(allOf={android.Manifest.permission.READ_PRECISE_PHONE_STATE, android.Manifest.permission.ACCESS_FINE_LOCATION}) public static final int EVENT_REGISTRATION_FAILURE = 31; // 0x1f
+    field public static final int EVENT_SERVICE_STATE_CHANGED = 1; // 0x1
+    field public static final int EVENT_SIGNAL_STRENGTHS_CHANGED = 9; // 0x9
+    field public static final int EVENT_SIGNAL_STRENGTH_CHANGED = 2; // 0x2
+    field @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public static final int EVENT_SRVCC_STATE_CHANGED = 16; // 0x10
+    field public static final int EVENT_USER_MOBILE_DATA_STATE_CHANGED = 20; // 0x14
+    field @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public static final int EVENT_VOICE_ACTIVATION_STATE_CHANGED = 18; // 0x12
+  }
+
+  public static interface TelephonyCallback.AllowedNetworkTypesListener {
+    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void onAllowedNetworkTypesChanged(@NonNull java.util.Map<java.lang.Integer,java.lang.Long>);
+  }
+
+  public static interface TelephonyCallback.CallAttributesListener {
+    method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onCallAttributesChanged(@NonNull android.telephony.CallAttributes);
+  }
+
+  public static interface TelephonyCallback.DataEnabledListener {
+    method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onDataEnabledChanged(boolean, int);
+  }
+
+  public static interface TelephonyCallback.OutgoingEmergencyCallListener {
+    method @RequiresPermission(android.Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION) public void onOutgoingEmergencyCall(@NonNull android.telephony.emergency.EmergencyNumber, int);
+  }
+
+  public static interface TelephonyCallback.OutgoingEmergencySmsListener {
+    method @RequiresPermission(android.Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION) public void onOutgoingEmergencySms(@NonNull android.telephony.emergency.EmergencyNumber, int);
+  }
+
+  public static interface TelephonyCallback.PhoneCapabilityListener {
+    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void onPhoneCapabilityChanged(@NonNull android.telephony.PhoneCapability);
+  }
+
+  public static interface TelephonyCallback.PhysicalChannelConfigListener {
+    method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onPhysicalChannelConfigChanged(@NonNull java.util.List<android.telephony.PhysicalChannelConfig>);
+  }
+
+  public static interface TelephonyCallback.PreciseCallStateListener {
+    method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onPreciseCallStateChanged(@NonNull android.telephony.PreciseCallState);
+  }
+
+  public static interface TelephonyCallback.RadioPowerStateListener {
+    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void onRadioPowerStateChanged(int);
+  }
+
+  public static interface TelephonyCallback.SrvccStateListener {
+    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void onSrvccStateChanged(int);
+  }
+
+  public static interface TelephonyCallback.VoiceActivationStateListener {
+    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void onVoiceActivationStateChanged(int);
+  }
+
   public final class TelephonyHistogram implements android.os.Parcelable {
     ctor public TelephonyHistogram(int, int, int);
     ctor public TelephonyHistogram(android.telephony.TelephonyHistogram);
@@ -13296,10 +13304,12 @@
   public final class SipMessage implements android.os.Parcelable {
     ctor public SipMessage(@NonNull String, @NonNull String, @NonNull byte[]);
     method public int describeContents();
+    method @Nullable public String getCallIdParameter();
     method @NonNull public byte[] getContent();
     method @NonNull public byte[] getEncodedMessage();
     method @NonNull public String getHeaderSection();
     method @NonNull public String getStartLine();
+    method @Nullable public String getViaBranchParameter();
     method public void writeToParcel(@NonNull android.os.Parcel, int);
     field @NonNull public static final android.os.Parcelable.Creator<android.telephony.ims.SipMessage> CREATOR;
   }
diff --git a/core/api/test-current.txt b/core/api/test-current.txt
index e4757e6..b41f970 100644
--- a/core/api/test-current.txt
+++ b/core/api/test-current.txt
@@ -298,7 +298,7 @@
   }
 
   public final class PendingIntent implements android.os.Parcelable {
-    method @Nullable @RequiresPermission("android.permission.GET_INTENT_SENDER_INTENT") public java.util.List<android.content.pm.ResolveInfo> queryIntentComponents(int);
+    method @NonNull @RequiresPermission("android.permission.GET_INTENT_SENDER_INTENT") public java.util.List<android.content.pm.ResolveInfo> queryIntentComponents(int);
     field @Deprecated public static final int FLAG_MUTABLE_UNAUDITED = 33554432; // 0x2000000
   }
 
diff --git a/core/java/android/app/IActivityManager.aidl b/core/java/android/app/IActivityManager.aidl
index 3a8172e..ef0dcab 100644
--- a/core/java/android/app/IActivityManager.aidl
+++ b/core/java/android/app/IActivityManager.aidl
@@ -706,7 +706,7 @@
     boolean stopProfile(int userId);
 
     /** Called by PendingIntent.queryIntentComponents() */
-    List<ResolveInfo> queryIntentComponentsForIntentSender(in IIntentSender sender, int matchFlags);
+    ParceledListSlice queryIntentComponentsForIntentSender(in IIntentSender sender, int matchFlags);
 
     int getUidProcessCapabilities(int uid, in String callingPackage);
 }
diff --git a/core/java/android/app/PendingIntent.java b/core/java/android/app/PendingIntent.java
index 549bd4b..009c936 100644
--- a/core/java/android/app/PendingIntent.java
+++ b/core/java/android/app/PendingIntent.java
@@ -26,7 +26,6 @@
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
-import android.annotation.SuppressLint;
 import android.annotation.SystemApi;
 import android.annotation.SystemApi.Client;
 import android.annotation.TestApi;
@@ -41,6 +40,7 @@
 import android.content.Intent;
 import android.content.IntentSender;
 import android.content.pm.PackageManager.ResolveInfoFlags;
+import android.content.pm.ParceledListSlice;
 import android.content.pm.ResolveInfo;
 import android.os.Build;
 import android.os.Bundle;
@@ -60,6 +60,7 @@
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
+import java.util.Collections;
 import java.util.List;
 import java.util.Objects;
 
@@ -1239,14 +1240,17 @@
      * @param flags MATCH_* flags from {@link android.content.pm.PackageManager}.
      * @hide
      */
-    @SuppressLint("NullableCollection")
     @RequiresPermission(permission.GET_INTENT_SENDER_INTENT)
     @SystemApi(client = Client.MODULE_LIBRARIES)
     @TestApi
-    public @Nullable List<ResolveInfo> queryIntentComponents(@ResolveInfoFlags int flags) {
+    public @NonNull List<ResolveInfo> queryIntentComponents(@ResolveInfoFlags int flags) {
         try {
-            return ActivityManager.getService()
+            ParceledListSlice<ResolveInfo> parceledList = ActivityManager.getService()
                     .queryIntentComponentsForIntentSender(mTarget, flags);
+            if (parceledList == null) {
+                return Collections.emptyList();
+            }
+            return parceledList.getList();
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
diff --git a/core/java/android/content/pm/parsing/component/ParsedActivity.java b/core/java/android/content/pm/parsing/component/ParsedActivity.java
index 2ea24f7..6f478ac 100644
--- a/core/java/android/content/pm/parsing/component/ParsedActivity.java
+++ b/core/java/android/content/pm/parsing/component/ParsedActivity.java
@@ -155,6 +155,7 @@
         alias.nonLocalizedLabel = target.nonLocalizedLabel;
         alias.launchMode = target.launchMode;
         alias.lockTaskLaunchMode = target.lockTaskLaunchMode;
+        alias.documentLaunchMode = target.documentLaunchMode;
         alias.descriptionRes = target.descriptionRes;
         alias.screenOrientation = target.screenOrientation;
         alias.taskAffinity = target.taskAffinity;
@@ -179,7 +180,6 @@
 //        alias.exported = target.exported;
 //        alias.permission = target.permission;
 //        alias.splitName = target.splitName;
-//        alias.documentLaunchMode = target.documentLaunchMode;
 //        alias.persistableMode = target.persistableMode;
 //        alias.rotationAnimation = target.rotationAnimation;
 //        alias.colorMode = target.colorMode;
diff --git a/core/java/android/hardware/camera2/CameraCharacteristics.java b/core/java/android/hardware/camera2/CameraCharacteristics.java
index 16ab900..07ebbaf 100644
--- a/core/java/android/hardware/camera2/CameraCharacteristics.java
+++ b/core/java/android/hardware/camera2/CameraCharacteristics.java
@@ -24,13 +24,11 @@
 import android.hardware.camera2.impl.SyntheticKey;
 import android.hardware.camera2.params.RecommendedStreamConfigurationMap;
 import android.hardware.camera2.params.SessionConfiguration;
-import android.hardware.camera2.utils.ArrayUtils;
 import android.hardware.camera2.utils.TypeReference;
 import android.os.Build;
 import android.util.Rational;
 
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashSet;
 import java.util.List;
@@ -641,27 +639,7 @@
      */
     @NonNull
     public Set<String> getPhysicalCameraIds() {
-        int[] availableCapabilities = get(REQUEST_AVAILABLE_CAPABILITIES);
-        if (availableCapabilities == null) {
-            throw new AssertionError("android.request.availableCapabilities must be non-null "
-                        + "in the characteristics");
-        }
-
-        if (!ArrayUtils.contains(availableCapabilities,
-                REQUEST_AVAILABLE_CAPABILITIES_LOGICAL_MULTI_CAMERA)) {
-            return Collections.emptySet();
-        }
-        byte[] physicalCamIds = get(LOGICAL_MULTI_CAMERA_PHYSICAL_IDS);
-
-        String physicalCamIdString = null;
-        try {
-            physicalCamIdString = new String(physicalCamIds, "UTF-8");
-        } catch (java.io.UnsupportedEncodingException e) {
-            throw new AssertionError("android.logicalCam.physicalIds must be UTF-8 string");
-        }
-        String[] physicalCameraIdArray = physicalCamIdString.split("\0");
-
-        return Collections.unmodifiableSet(new HashSet<String>(Arrays.asList(physicalCameraIdArray)));
+        return mProperties.getPhysicalCameraIds();
     }
 
     /*@O~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~
@@ -2931,6 +2909,74 @@
             new Key<android.util.Size>("android.scaler.defaultSecureImageSize", android.util.Size.class);
 
     /**
+     * <p>The available multi-resolution stream configurations that this
+     * physical camera device supports
+     * (i.e. format, width, height, output/input stream).</p>
+     * <p>This list contains a subset of the parent logical camera's multi-resolution stream
+     * configurations which belong to this physical camera, and it will advertise and will only
+     * advertise the maximum supported resolutions for a particular format.</p>
+     * <p>If this camera device isn't a physical camera device constituting a logical camera,
+     * but a standalone ULTRA_HIGH_RESOLUTION_SENSOR camera, this field represents the
+     * multi-resolution input/output stream configurations of default mode and max resolution
+     * modes. The sizes will be the maximum resolution of a particular format for default mode
+     * and max resolution mode.</p>
+     * <p>This field will only be advertised if the device is a physical camera of a
+     * logical multi-camera device or an ultra high resolution sensor camera. For a logical
+     * multi-camera, the camera API will derive the logical camera’s multi-resolution stream
+     * configurations from all physical cameras. For an ultra high resolution sensor camera, this
+     * is used directly as the camera’s multi-resolution stream configurations.</p>
+     * <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p>
+     * <p><b>Limited capability</b> -
+     * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the
+     * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p>
+     *
+     * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
+     * @hide
+     */
+    public static final Key<android.hardware.camera2.params.StreamConfiguration[]> SCALER_PHYSICAL_CAMERA_MULTI_RESOLUTION_STREAM_CONFIGURATIONS =
+            new Key<android.hardware.camera2.params.StreamConfiguration[]>("android.scaler.physicalCameraMultiResolutionStreamConfigurations", android.hardware.camera2.params.StreamConfiguration[].class);
+
+    /**
+     * <p>The multi-resolution stream configurations supported by this logical camera
+     * or ultra high resolution sensor camera device.</p>
+     * <p>Multi-resolution streams can be used by a LOGICAL_MULTI_CAMERA or an
+     * ULTRA_HIGH_RESOLUTION_SENSOR camera where the images sent or received can vary in
+     * resolution per frame. This is useful in cases where the camera device's effective full
+     * resolution changes depending on factors such as the current zoom level, lighting
+     * condition, focus distance, or pixel mode.</p>
+     * <ul>
+     * <li>For a logical multi-camera implementing optical zoom, at different zoom level, a
+     * different physical camera may be active, resulting in different full-resolution image
+     * sizes.</li>
+     * <li>For an ultra high resolution camera, depending on whether the camera operates in default
+     * mode, or maximum resolution mode, the output full-size images may be of either binned
+     * resolution or maximum resolution.</li>
+     * </ul>
+     * <p>To use multi-resolution output streams, the supported formats can be queried by {@link android.hardware.camera2.params.MultiResolutionStreamConfigurationMap#getOutputFormats }.
+     * A {@link android.hardware.camera2.MultiResolutionImageReader } can then be created for a
+     * supported format with the MultiResolutionStreamInfo group queried by {@link android.hardware.camera2.params.MultiResolutionStreamConfigurationMap#getOutputInfo }.</p>
+     * <p>If a camera device supports multi-resolution output streams for a particular format, for
+     * each of its mandatory stream combinations, the camera device will support using a
+     * MultiResolutionImageReader for the MAXIMUM stream of supported formats. Refer to
+     * {@link android.hardware.camera2.CameraDevice#createCaptureSession } for additional details.</p>
+     * <p>To use multi-resolution input streams, the supported formats can be queried by {@link android.hardware.camera2.params.MultiResolutionStreamConfigurationMap#getInputFormats }.
+     * A reprocessable CameraCaptureSession can then be created using an {@link android.hardware.camera2.params.InputConfiguration InputConfiguration} constructed with
+     * the input MultiResolutionStreamInfo group, queried by {@link android.hardware.camera2.params.MultiResolutionStreamConfigurationMap#getInputInfo }.</p>
+     * <p>If a camera device supports multi-resolution {@code YUV} input and multi-resolution
+     * {@code YUV} output, or multi-resolution {@code PRIVATE} input and multi-resolution
+     * {@code PRIVATE} output, {@code JPEG} and {@code YUV} are guaranteed to be supported
+     * multi-resolution output stream formats. Refer to
+     * {@link android.hardware.camera2.CameraDevice#createCaptureSession } for
+     * details about the additional mandatory stream combinations in this case.</p>
+     * <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p>
+     */
+    @PublicKey
+    @NonNull
+    @SyntheticKey
+    public static final Key<android.hardware.camera2.params.MultiResolutionStreamConfigurationMap> SCALER_MULTI_RESOLUTION_STREAM_CONFIGURATION_MAP =
+            new Key<android.hardware.camera2.params.MultiResolutionStreamConfigurationMap>("android.scaler.multiResolutionStreamConfigurationMap", android.hardware.camera2.params.MultiResolutionStreamConfigurationMap.class);
+
+    /**
      * <p>The area of the image sensor which corresponds to active pixels after any geometric
      * distortion correction has been applied.</p>
      * <p>This is the rectangle representing the size of the active region of the sensor (i.e.
diff --git a/core/java/android/hardware/camera2/CameraDevice.java b/core/java/android/hardware/camera2/CameraDevice.java
index ac6ba0a..af48b71 100644
--- a/core/java/android/hardware/camera2/CameraDevice.java
+++ b/core/java/android/hardware/camera2/CameraDevice.java
@@ -770,6 +770,8 @@
      * streams with {@code Y8} in all guaranteed stream combinations for the device's hardware level
      * and capabilities.</p>
      *
+     * <p>Clients can access the above mandatory stream combination tables via
+     * {@link android.hardware.camera2.params.MandatoryStreamCombination}.</p>
      *
      * <p>Devices capable of outputting HEIC formats ({@link StreamConfigurationMap#getOutputFormats}
      * contains {@link android.graphics.ImageFormat#HEIC}) will support substituting {@code JPEG}
@@ -777,8 +779,33 @@
      * level and capabilities. Calling createCaptureSession with both JPEG and HEIC outputs is not
      * supported.</p>
      *
-     * <p>Clients can access the above mandatory stream combination tables via
-     * {@link android.hardware.camera2.params.MandatoryStreamCombination}.</p>
+     * <p>Devices capable of multi-resolution output for a particular format (
+     * {@link android.hardware.camera2.params.MultiResolutionStreamConfigurationMap#getOutputInfo}
+     * returns a non-empty list) support using {@link MultiResolutionImageReader} for MAXIMUM
+     * resolution streams of that format for all mandatory stream combinations. For example,
+     * if a LIMITED camera device supports multi-resolution output streams for both {@code JPEG} and
+     * {@code PRIVATE}, in addition to the stream configurations
+     * in the LIMITED and Legacy table above, the camera device supports the following guaranteed
+     * stream combinations ({@code MULTI_RES} in the Max size column refers to a {@link
+     * MultiResolutionImageReader} created based on the variable max resolutions supported):
+     *
+     * <table>
+     * <tr><th colspan="7">LEGACY-level additional guaranteed combinations with MultiResolutionoutputs</th></tr>
+     * <tr> <th colspan="2" id="rb">Target 1</th> <th colspan="2" id="rb">Target 2</th>  <th colspan="2" id="rb">Target 3</th> <th rowspan="2">Sample use case(s)</th> </tr>
+     * <tr> <th>Type</th><th id="rb">Max size</th> <th>Type</th><th id="rb">Max size</th> <th>Type</th><th id="rb">Max size</th></tr>
+     * <tr> <td>{@code PRIV}</td><td id="rb">{@code MULTI_RES}</td> <td colspan="2" id="rb"></td> <td colspan="2" id="rb"></td> <td>Simple preview, GPU video processing, or no-preview video recording.</td> </tr>
+     * <tr> <td>{@code JPEG}</td><td id="rb">{@code MULTI_RES}</td> <td colspan="2" id="rb"></td> <td colspan="2" id="rb"></td> <td>No-viewfinder still image capture.</td> </tr>
+     * <tr> <td>{@code PRIV}</td><td id="rb">{@code PREVIEW}</td> <td>{@code JPEG}</td><td id="rb">{@code MULTI_RES}</td> <td colspan="2" id="rb"></td> <td>Standard still imaging.</td> </tr>
+     * <tr> <td>{@code PRIV}</td><td id="rb">{@code PREVIEW}</td> <td>{@code YUV }</td><td id="rb">{@code PREVIEW}</td> <td>{@code JPEG}</td><td id="rb">{@code MULTI_RES}</td> <td>Still capture plus in-app processing.</td> </tr>
+     * </table><br>
+     * <table>
+     * <tr><th colspan="7">LIMITED-level additional guaranteed configurations with MultiResolutionoutputs</th></tr>
+     * <tr><th colspan="2" id="rb">Target 1</th><th colspan="2" id="rb">Target 2</th><th colspan="2" id="rb">Target 3</th> <th rowspan="2">Sample use case(s)</th> </tr>
+     * <tr><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th></tr>
+     * <tr> <td>{@code YUV }</td><td id="rb">{@code PREVIEW}</td> <td>{@code YUV }</td><td id="rb">{@code PREVIEW}</td> <td>{@code JPEG}</td><td id="rb">{@code MULTI_RES}</td> <td>Two-input in-app processing with still capture.</td> </tr>
+     * </table><br>
+     * The same logic applies to other hardware levels and capabilities.
+     * </p>
      *
      * <p>Since the capabilities of camera devices vary greatly, a given camera device may support
      * target combinations with sizes outside of these guarantees, but this can only be tested for
@@ -939,6 +966,32 @@
      * </table><br>
      * </p>
      *
+     * <p>If a camera device supports multi-resolution {@code YUV} input and multi-resolution
+     * {@code YUV} output or supports multi-resolution {@code PRIVATE} input and multi-resolution
+     * {@code PRIVATE} output, the additional mandatory stream combinations for LIMITED and FULL devices are listed
+     * below ({@code MULTI_RES} in the Max size column refers to a
+     * {@link MultiResolutionImageReader} for output, and a multi-resolution
+     * {@link InputConfiguration} for input):
+     * <table>
+     * <tr><th colspan="11">LIMITED-level additional guaranteed configurations for creating a reprocessable capture session with multi-resolution input and multi-resolution outputs<br>({@code PRIV} input is guaranteed only if PRIVATE reprocessing is supported. {@code YUV} input is guaranteed only if YUV reprocessing is supported)</th></tr>
+     * <tr><th colspan="2" id="rb">Input</th><th colspan="2" id="rb">Target 1</th><th colspan="2" id="rb">Target 2</th><th colspan="2" id="rb">Target 3</th><th colspan="2" id="rb">Target 4</th><th rowspan="2">Sample use case(s)</th> </tr>
+     * <tr><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th></tr>
+     * <tr> <td>{@code PRIV}/{@code YUV}</td><td id="rb">{@code MULTI_RES}</td> <td>Same as input</td><td id="rb">{@code MULTI_RES}</td> <td>{@code JPEG}</td><td id="rb">{@code MULTI_RES}</td> <td></td><td id="rb"></td> <td></td><td id="rb"></td> <td>No-viewfinder still image reprocessing.</td> </tr>
+     * <tr> <td>{@code PRIV}/{@code YUV}</td><td id="rb">{@code MULTI_RES}</td> <td>Same as input</td><td id="rb">{@code MULTI_RES}</td> <td>{@code PRIV}</td><td id="rb">{@code PREVIEW}</td> <td>{@code JPEG}</td><td id="rb">{@code MULTI_RES}</td> <td></td><td id="rb"></td> <td>ZSL(Zero-Shutter-Lag) still imaging.</td> </tr>
+     * <tr> <td>{@code PRIV}/{@code YUV}</td><td id="rb">{@code MULTI_RES}</td> <td>Same as input</td><td id="rb">{@code MULTI_RES}</td> <td>{@code YUV}</td><td id="rb">{@code PREVIEW}</td> <td>{@code JPEG}</td><td id="rb">{@code MULTI_RES}</td> <td></td><td id="rb"></td> <td>ZSL still and in-app processing imaging.</td> </tr>
+     * <tr> <td>{@code PRIV}/{@code YUV}</td><td id="rb">{@code MULTI_RES}</td> <td>Same as input</td><td id="rb">{@code MULTI_RES}</td> <td>{@code YUV}</td><td id="rb">{@code PREVIEW}</td> <td>{@code YUV}</td><td id="rb">{@code PREVIEW}</td> <td>{@code JPEG}</td><td id="rb">{@code MULTI_RES}</td> <td>ZSL in-app processing with still capture.</td> </tr>
+     * </table><br>
+     * <table>
+     * <tr><th colspan="11">FULL-level additional guaranteed configurations for creating a reprocessable capture session with multi-resolution input and multi-resolution outputs<br>({@code PRIV} input is guaranteed only if PRIVATE reprocessing is supported. {@code YUV} input is guaranteed only if YUV reprocessing is supported)</th></tr>
+     * <tr><th colspan="2" id="rb">Input</th><th colspan="2" id="rb">Target 1</th><th colspan="2" id="rb">Target 2</th><th colspan="2" id="rb">Target 3</th><th colspan="2" id="rb">Target 4</th><th rowspan="2">Sample use case(s)</th> </tr>
+     * <tr><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th></tr>
+     * <tr> <td>{@code PRIV}</td><td id="rb">{@code MULTI_RES}</td> <td>{@code PRIV}</td><td id="rb">{@code MULTI_RES}</td> <td>{@code PRIV}</td><td id="rb">{@code PREVIEW}</td> <td>{@code YUV}</td><td id="rb">{@code MULTI_RES}</td> <td></td><td id="rb"></td> <td>Maximum-resolution ZSL in-app processing with regular preview.</td> </tr>
+     * <tr> <td>{@code PRIV}</td><td id="rb">{@code MULTI_RES}</td> <td>{@code PRIV}</td><td id="rb">{@code MULTI_RES}</td> <td>{@code YUV}</td><td id="rb">{@code PREVIEW}</td> <td>{@code YUV}</td><td id="rb">{@code MULTI_RES}</td> <td></td><td id="rb"></td> <td>Maximum-resolution two-input ZSL in-app processing.</td> </tr>
+     * <tr> <td>{@code PRIV}/{@code YUV}</td><td id="rb">{@code MULTI_RES}</td> <td>Same as input</td><td id="rb">{@code MULTI_RES}</td> <td>{@code PRIV}</td><td id="rb">{@code PREVIEW}</td> <td>{@code YUV}</td><td id="rb">{@code PREVIEW}</td> <td>{@code JPEG}</td><td id="rb">{@code MULTI_RES}</td> <td>ZSL still capture and in-app processing.</td> </tr>
+     * </table><br>
+     * No additional mandatory stream combinations for RAW capability and LEVEL-3 hardware level.
+     * </p>
+     *
      * <h3>Constrained high-speed recording</h3>
      *
      * <p>The application can use a
diff --git a/core/java/android/hardware/camera2/CameraManager.java b/core/java/android/hardware/camera2/CameraManager.java
index 3e0e3f62..a3c6f2f 100644
--- a/core/java/android/hardware/camera2/CameraManager.java
+++ b/core/java/android/hardware/camera2/CameraManager.java
@@ -31,6 +31,7 @@
 import android.hardware.camera2.impl.CameraMetadataNative;
 import android.hardware.camera2.params.ExtensionSessionConfiguration;
 import android.hardware.camera2.params.SessionConfiguration;
+import android.hardware.camera2.params.StreamConfiguration;
 import android.hardware.camera2.utils.CameraIdAndSessionConfiguration;
 import android.hardware.camera2.utils.ConcurrentCameraIdCombination;
 import android.hardware.display.DisplayManager;
@@ -51,6 +52,7 @@
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Comparator;
+import java.util.HashMap;
 import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.Executor;
@@ -372,6 +374,47 @@
     }
 
     /**
+     * Get all physical cameras' multi-resolution stream configuration map
+     *
+     * <p>For a logical multi-camera, query the map between physical camera id and
+     * the physical camera's multi-resolution stream configuration. This map is in turn
+     * combined to form the logical camera's multi-resolution stream configuration map.</p>
+     */
+    private Map<String, StreamConfiguration[]> getPhysicalCameraMultiResolutionConfigs(
+            CameraMetadataNative info, ICameraService cameraService)
+            throws CameraAccessException {
+        HashMap<String, StreamConfiguration[]> multiResolutionStreamConfigurations =
+                new HashMap<String, StreamConfiguration[]>();
+
+        // Query the characteristics of all physical sub-cameras, and combine the multi-resolution
+        // stream configurations. Note that framework derived formats such as HEIC and DEPTH_JPEG
+        // aren't supported as multi-resolution input or output formats.
+        Set<String> physicalCameraIds = info.getPhysicalCameraIds();
+        try {
+            for (String physicalCameraId : physicalCameraIds) {
+                CameraMetadataNative physicalCameraInfo =
+                        cameraService.getCameraCharacteristics(physicalCameraId);
+                StreamConfiguration[] configs = physicalCameraInfo.get(
+                        CameraCharacteristics.
+                                SCALER_PHYSICAL_CAMERA_MULTI_RESOLUTION_STREAM_CONFIGURATIONS);
+                if (configs != null) {
+                    multiResolutionStreamConfigurations.put(physicalCameraId, configs);
+                }
+            }
+
+            // TODO: If this is an ultra high resolution sensor camera, combine the multi-resolution
+            // stream combination from "info" as well.
+        } catch (RemoteException e) {
+            ServiceSpecificException sse = new ServiceSpecificException(
+                    ICameraService.ERROR_DISCONNECTED,
+                    "Camera service is currently unavailable");
+            throwAsPublicException(sse);
+        }
+
+        return multiResolutionStreamConfigurations;
+    }
+
+    /**
      * <p>Query the capabilities of a camera device. These capabilities are
      * immutable for a given camera.</p>
      *
@@ -418,12 +461,19 @@
                 } catch (NumberFormatException e) {
                     Log.v(TAG, "Failed to parse camera Id " + cameraId + " to integer");
                 }
+
                 boolean hasConcurrentStreams =
                         CameraManagerGlobal.get().cameraIdHasConcurrentStreamsLocked(cameraId);
                 info.setHasMandatoryConcurrentStreams(hasConcurrentStreams);
                 info.setDisplaySize(displaySize);
-                characteristics = new CameraCharacteristics(info);
 
+                Map<String, StreamConfiguration[]> multiResolutionSizeMap =
+                        getPhysicalCameraMultiResolutionConfigs(info, cameraService);
+                if (multiResolutionSizeMap.size() > 0) {
+                    info.setMultiResolutionStreamConfigurationMap(multiResolutionSizeMap);
+                }
+
+                characteristics = new CameraCharacteristics(info);
             } catch (ServiceSpecificException e) {
                 throwAsPublicException(e);
             } catch (RemoteException e) {
diff --git a/core/java/android/hardware/camera2/MultiResolutionImageReader.java b/core/java/android/hardware/camera2/MultiResolutionImageReader.java
new file mode 100644
index 0000000..c592f19
--- /dev/null
+++ b/core/java/android/hardware/camera2/MultiResolutionImageReader.java
@@ -0,0 +1,309 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.camera2;
+
+import android.annotation.CallbackExecutor;
+import android.annotation.IntRange;
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.annotation.SuppressLint;
+import android.graphics.ImageFormat;
+import android.graphics.ImageFormat.Format;
+import android.hardware.HardwareBuffer;
+import android.hardware.HardwareBuffer.Usage;
+import android.media.Image;
+import android.media.ImageReader;
+import android.hardware.camera2.params.MultiResolutionStreamInfo;
+import android.os.Looper;
+import android.os.Message;
+import android.util.Log;
+import android.view.Surface;
+
+
+import java.nio.NioUtils;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.concurrent.Executor;
+
+/**
+ * <p>The MultiResolutionImageReader class wraps a group of {@link ImageReader ImageReaders} with
+ * the same format and different sizes, source camera Id, or camera sensor modes.</p>
+ *
+ * <p>The main use case of this class is for a
+ * {@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES_LOGICAL_MULTI_CAMERA logical
+ * multi-camera} or an ultra high resolution sensor camera to output variable-size images. For a
+ * logical multi-camera which implements optical zoom, different physical cameras may have different
+ * maximum resolutions. As a result, when the camera device switches between physical cameras
+ * depending on zoom ratio, the maximum resolution for a particular format may change. For an
+ * ultra high resolution sensor camera, the camera device may deem it better or worse to run in
+ * maximum resolution mode / default mode depending on lighting conditions. So the application may
+ * choose to let the camera device decide on its behalf.</p>
+ *
+ * <p>MultiResolutionImageReader should be used for a camera device only if the camera device
+ * supports multi-resolution output stream by advertising the specified output format in {@link
+ * CameraCharacteristics#SCALER_MULTI_RESOLUTION_STREAM_CONFIGURATION_MAP}.</p>
+ *
+ * <p>To acquire images from the MultiResolutionImageReader, the application must use the
+ * {@link ImageReader} object passed by
+ * {@link ImageReader.OnImageAvailableListener#onImageAvailable} callback to call
+ * {@link ImageReader#acquireNextImage} or {@link ImageReader#acquireLatestImage}. The application
+ * must not use the {@link ImageReader} passed by an {@link
+ * ImageReader.OnImageAvailableListener#onImageAvailable} callback to acquire future images
+ * because future images may originate from a different {@link ImageReader} contained within the
+ * {@code MultiResolutionImageReader}.</p>
+ *
+ *
+ * @see ImageReader
+ * @see android.hardware.camera2.CameraCharacteristics#SCALER_MULTI_RESOLUTION_STREAM_CONFIGURATION_MAP
+ */
+public class MultiResolutionImageReader implements AutoCloseable {
+
+    private static final String TAG = "MultiResolutionImageReader";
+
+    /**
+     * <p>
+     * Create a new multi-resolution reader based on a group of camera stream properties returned
+     * by a camera device.
+     * </p>
+     * <p>
+     * The valid size and formats depend on the camera characteristics.
+     * {@code MultiResolutionImageReader} for an image format is supported by the camera device if
+     * the format is in the supported multi-resolution output stream formats returned by
+     * {@link android.hardware.camera2.params.MultiResolutionStreamConfigurationMap#getOutputFormats}.
+     * If the image format is supported, the {@code MultiResolutionImageReader} object can be
+     * created with the {@code streams} objects returned by
+     * {@link android.hardware.camera2.params.MultiResolutionStreamConfigurationMap#getOutputInfo}.
+     * </p>
+     * <p>
+     * The {@code maxImages} parameter determines the maximum number of
+     * {@link Image} objects that can be be acquired from each of the {@code ImageReader}
+     * within the {@code MultiResolutionImageReader}. However, requesting more buffers will
+     * use up more memory, so it is important to use only the minimum number necessary. The
+     * application is strongly recommended to acquire no more than {@code maxImages} images
+     * from all of the internal ImageReader objects combined. By keeping track of the number of
+     * acquired images for the MultiResolutionImageReader, the application doesn't need to do the
+     * bookkeeping for each internal ImageReader returned from {@link
+     * ImageReader.OnImageAvailableListener#onImageAvailable onImageAvailable} callback.
+     * </p>
+     * <p>
+     * Unlike the normal ImageReader, the MultiResolutionImageReader has a more complex
+     * configuration sequence. Instead of passing the same surface to OutputConfiguration and
+     * CaptureRequest, the
+     * {@link android.hardware.camera2.params.OutputConfiguration#createInstancesForMultiResolutionOutput}
+     * call needs to be used to create the OutputConfigurations for session creation, and then
+     * {@link #getSurface} is used to get {@link CaptureRequest.Builder#addTarget the target for
+     * CaptureRequest}.
+     * </p>
+     * @param streams The group of multi-resolution stream info, which is used to create
+     *            a multi-resolution reader containing a number of ImageReader objects. Each
+     *            ImageReader object represents a multi-resolution stream in the group.
+     * @param format The format of the Image that this multi-resolution reader will produce.
+     *            This must be one of the {@link android.graphics.ImageFormat} or
+     *            {@link android.graphics.PixelFormat} constants. Note that not all formats are
+     *            supported, like ImageFormat.NV21. The supported multi-resolution
+     *            reader format can be queried by {@link
+     *            android.hardware.camera2.params.MultiResolutionStreamConfigurationMap#getOutputFormats}.
+     * @param maxImages The maximum number of images the user will want to
+     *            access simultaneously. This should be as small as possible to
+     *            limit memory use. Once maxImages images are obtained by the
+     *            user from any given internal ImageReader, one of them has to be released before
+     *            a new Image will become available for access through the ImageReader's
+     *            {@link ImageReader#acquireLatestImage()} or
+     *            {@link ImageReader#acquireNextImage()}. Must be greater than 0.
+     * @see Image
+     * @see
+     * android.hardware.camera2.CameraCharacteristics#SCALER_MULTI_RESOLUTION_STREAM_CONFIGURATION_MAP
+     * @see
+     * android.hardware.camera2.params.MultiResolutionStreamConfigurationMap
+     */
+    public static @NonNull MultiResolutionImageReader newInstance(
+            @NonNull Collection<MultiResolutionStreamInfo> streams,
+            @Format             int format,
+            @IntRange(from = 1) int maxImages) {
+        return new MultiResolutionImageReader(streams, format, maxImages);
+    }
+
+    /**
+     * @hide
+     */
+    protected MultiResolutionImageReader(Collection<MultiResolutionStreamInfo> streams,
+            int format, int maxImages) {
+        mFormat = format;
+        mMaxImages = maxImages;
+
+        if (streams == null || streams.size() <= 1) {
+            throw new IllegalArgumentException(
+                "The streams info collection must contain at least 2 entries");
+        }
+        if (mMaxImages < 1) {
+            throw new IllegalArgumentException(
+                "Maximum outstanding image count must be at least 1");
+        }
+
+        if (format == ImageFormat.NV21) {
+            throw new IllegalArgumentException(
+                    "NV21 format is not supported");
+        }
+
+        int numImageReaders = streams.size();
+        mReaders = new ImageReader[numImageReaders];
+        mStreamInfo = new MultiResolutionStreamInfo[numImageReaders];
+        int index = 0;
+        for (MultiResolutionStreamInfo streamInfo : streams) {
+            mReaders[index] = ImageReader.newInstance(streamInfo.getWidth(),
+                    streamInfo.getHeight(), format, maxImages);
+            mStreamInfo[index] = streamInfo;
+            index++;
+        }
+    }
+
+    /**
+     * Set onImageAvailableListener callback.
+     *
+     * <p>This function sets the onImageAvailableListener for all the internal
+     * {@link ImageReader} objects.</p>
+     *
+     * <p>For a multi-resolution ImageReader, the timestamps of images acquired in
+     * onImageAvailable callback from different internal ImageReaders may become
+     * out-of-order due to the asynchronous callbacks between the different resolution
+     * image queues.</p>
+     *
+     * @param listener
+     *            The listener that will be run.
+     * @param executor
+     *            The executor which will be used when invoking the callback.
+     */
+    @SuppressLint({"ExecutorRegistration", "SamShouldBeLast"})
+    public void setOnImageAvailableListener(
+            @Nullable ImageReader.OnImageAvailableListener listener,
+            @Nullable @CallbackExecutor Executor executor) {
+        for (int i = 0; i < mReaders.length; i++) {
+            mReaders[i].setOnImageAvailableListenerWithExecutor(listener, executor);
+        }
+    }
+
+    @Override
+    public void close() {
+        flush();
+
+        for (int i = 0; i < mReaders.length; i++) {
+            mReaders[i].close();
+        }
+    }
+
+    @Override
+    protected void finalize() {
+        close();
+    }
+
+    /**
+     * Flush pending images from all internal ImageReaders
+     *
+     * <p>Acquire and close pending images from all internal ImageReaders. This has the same
+     * effect as calling acquireLatestImage() on all internal ImageReaders, and closing all
+     * latest images.</p>
+     */
+    public void flush() {
+        flushOther(null);
+    }
+
+    /**
+     * Flush pending images from other internal ImageReaders
+     *
+     * <p>Acquire and close pending images from all internal ImageReaders except for the
+     * one specified.</p>
+     *
+     * @param reader The ImageReader object that won't be flushed.
+     *
+     * @hide
+     */
+    public void flushOther(ImageReader reader) {
+        for (int i = 0; i < mReaders.length; i++) {
+            if (reader != null && reader == mReaders[i]) {
+                continue;
+            }
+
+            while (true) {
+                Image image = mReaders[i].acquireNextImageNoThrowISE();
+                if (image == null) {
+                    break;
+                } else {
+                    image.close();
+                }
+            }
+        }
+    }
+
+    /**
+     * Get the internal ImageReader objects
+     *
+     * @hide
+     */
+    public @NonNull ImageReader[] getReaders() {
+        return mReaders;
+    }
+
+    /**
+     * Get the surface that is used as a target for {@link CaptureRequest}
+     *
+     * <p>The application must use the surface returned by this function as a target for
+     * {@link CaptureRequest}. The camera device makes the decision on which internal
+     * {@code ImageReader} will receive the output image.</p>
+     *
+     * <p>Please note that holding on to the Surface objects returned by this method is not enough
+     * to keep their parent MultiResolutionImageReaders from being reclaimed. In that sense, a
+     * Surface acts like a {@link java.lang.ref.WeakReference weak reference} to the
+     * MultiResolutionImageReader that provides it.</p>
+     *
+     * @return a {@link Surface} to use as the target for a capture request.
+     */
+    public @NonNull Surface getSurface() {
+        //TODO: Pick the surface from the reader for default mode stream.
+        return mReaders[0].getSurface();
+    }
+
+    /**
+     * Get the MultiResolutionStreamInfo describing the ImageReader an image originates from
+     *
+     *<p>An image from a {@code MultiResolutionImageReader} is produced from one of the underlying
+     *{@code ImageReader}s. This function returns the {@link MultiResolutionStreamInfo} to describe
+     *the property for that {@code ImageReader}, such as width, height, and physical camera Id.</p>
+     *
+     * @param reader An internal ImageReader within {@code MultiResolutionImageReader}.
+     *
+     * @return The stream info describing the internal {@code ImageReader}.
+     */
+    public @NonNull MultiResolutionStreamInfo getStreamInfoForImageReader(
+            @NonNull ImageReader reader) {
+        for (int i = 0; i < mReaders.length; i++) {
+            if (reader == mReaders[i]) {
+                return mStreamInfo[i];
+            }
+        }
+
+        throw new IllegalArgumentException("ImageReader doesn't belong to this multi-resolution "
+                + "imagereader");
+    }
+
+    // mReaders and mStreamInfo has the same length, and their entries are 1:1 mapped.
+    private final ImageReader[] mReaders;
+    private final MultiResolutionStreamInfo[] mStreamInfo;
+
+    private final int mFormat;
+    private final int mMaxImages;
+}
diff --git a/core/java/android/hardware/camera2/TotalCaptureResult.java b/core/java/android/hardware/camera2/TotalCaptureResult.java
index da65f71..df8eecc 100644
--- a/core/java/android/hardware/camera2/TotalCaptureResult.java
+++ b/core/java/android/hardware/camera2/TotalCaptureResult.java
@@ -61,8 +61,8 @@
 
     private final List<CaptureResult> mPartialResults;
     private final int mSessionId;
-    // The map between physical camera id and capture result
-    private final HashMap<String, CaptureResult> mPhysicalCaptureResults;
+    // The map between physical camera ids and their total capture result
+    private final HashMap<String, TotalCaptureResult> mPhysicalCaptureResults;
 
     /**
      * Takes ownership of the passed-in camera metadata and the partial results
@@ -83,10 +83,11 @@
 
         mSessionId = sessionId;
 
-        mPhysicalCaptureResults = new HashMap<String, CaptureResult>();
+        mPhysicalCaptureResults = new HashMap<String, TotalCaptureResult>();
         for (PhysicalCaptureResultInfo onePhysicalResult : physicalResults) {
-            CaptureResult physicalResult = new CaptureResult(onePhysicalResult.getCameraId(),
-                    onePhysicalResult.getCameraMetadata(), parent, extras);
+            TotalCaptureResult physicalResult = new TotalCaptureResult(
+                    onePhysicalResult.getCameraId(), onePhysicalResult.getCameraMetadata(),
+                    parent, extras, /*partials*/null, sessionId, new PhysicalCaptureResultInfo[0]);
             mPhysicalCaptureResults.put(onePhysicalResult.getCameraId(),
                     physicalResult);
         }
@@ -103,7 +104,7 @@
 
         mPartialResults = new ArrayList<>();
         mSessionId = CameraCaptureSession.SESSION_ID_NONE;
-        mPhysicalCaptureResults = new HashMap<String, CaptureResult>();
+        mPhysicalCaptureResults = new HashMap<String, TotalCaptureResult>();
     }
 
     /**
@@ -146,8 +147,37 @@
      * cameras. Otherwise, an empty map is returned.</p>
 
      * @return unmodifiable map between physical camera ids and their capture result metadata
+     *
+     * @deprecated
+     * <p>Please use {@link #getPhysicalCameraTotalResults() instead to get the
+     * physical cameras' {@code TotalCaptureResult}.</p>
      */
     public Map<String, CaptureResult> getPhysicalCameraResults() {
         return Collections.unmodifiableMap(mPhysicalCaptureResults);
     }
+
+    /**
+     * Get the map between physical camera ids and their total capture result metadata
+     *
+     * <p>This function can be called for logical multi-camera devices, which are devices that have
+     * REQUEST_AVAILABLE_CAPABILITIES_LOGICAL_MULTI_CAMERA capability.</p>
+     *
+     * <p>If one or more streams from the underlying physical cameras were requested by the
+     * corresponding capture request, this function returns the total result metadata for those
+     * physical cameras. Otherwise, an empty map is returned.</p>
+     *
+     * <p>This function replaces the deprecated {@link #getPhysicalCameraResults}, and its return
+     * value is a map of TotalCaptureResult rather than CaptureResult. </p>
+     *
+     * <p>To reprocess an image from a physical camera stream, typically returned from a
+     * {@link MultiResolutionImageReader}, the application must look up this map to get the {@link
+     * TotalCaptureResult} from the physical camera and pass it to {@link
+     * CameraDevice#createReprocessCaptureRequest}.</p>
+     *
+     * @return unmodifiable map between physical camera ids and their total capture result metadata
+     */
+    @NonNull
+    public Map<String, TotalCaptureResult> getPhysicalCameraTotalResults() {
+        return Collections.unmodifiableMap(mPhysicalCaptureResults);
+    }
 }
diff --git a/core/java/android/hardware/camera2/impl/CameraDeviceImpl.java b/core/java/android/hardware/camera2/impl/CameraDeviceImpl.java
index ce3c81a..4defd23 100644
--- a/core/java/android/hardware/camera2/impl/CameraDeviceImpl.java
+++ b/core/java/android/hardware/camera2/impl/CameraDeviceImpl.java
@@ -36,6 +36,8 @@
 import android.hardware.camera2.TotalCaptureResult;
 import android.hardware.camera2.params.ExtensionSessionConfiguration;
 import android.hardware.camera2.params.InputConfiguration;
+import android.hardware.camera2.params.MultiResolutionStreamConfigurationMap;
+import android.hardware.camera2.params.MultiResolutionStreamInfo;
 import android.hardware.camera2.params.OutputConfiguration;
 import android.hardware.camera2.params.SessionConfiguration;
 import android.hardware.camera2.params.StreamConfigurationMap;
@@ -468,7 +470,8 @@
                     }
                     if (inputConfig != null) {
                         int streamId = mRemoteDevice.createInputStream(inputConfig.getWidth(),
-                                inputConfig.getHeight(), inputConfig.getFormat());
+                                inputConfig.getHeight(), inputConfig.getFormat(),
+                                inputConfig.isMultiResolution());
                         mConfiguredInput = new SimpleEntry<Integer, InputConfiguration>(
                                 streamId, inputConfig);
                     }
@@ -1355,7 +1358,42 @@
     }
 
     private void checkInputConfiguration(InputConfiguration inputConfig) {
-        if (inputConfig != null) {
+        if (inputConfig == null) {
+            return;
+        }
+
+        if (inputConfig.isMultiResolution()) {
+            MultiResolutionStreamConfigurationMap configMap = mCharacteristics.get(
+                    CameraCharacteristics.SCALER_MULTI_RESOLUTION_STREAM_CONFIGURATION_MAP);
+
+            int[] inputFormats = configMap.getInputFormats();
+            boolean validFormat = false;
+            for (int format : inputFormats) {
+                if (format == inputConfig.getFormat()) {
+                    validFormat = true;
+                }
+            }
+
+            if (validFormat == false) {
+                throw new IllegalArgumentException("multi-resolution input format " +
+                        inputConfig.getFormat() + " is not valid");
+            }
+
+            boolean validSize = false;
+            Collection<MultiResolutionStreamInfo> inputStreamInfo =
+                    configMap.getInputInfo(inputConfig.getFormat());
+            for (MultiResolutionStreamInfo info : inputStreamInfo) {
+                if (inputConfig.getWidth() == info.getWidth() &&
+                        inputConfig.getHeight() == info.getHeight()) {
+                    validSize = true;
+                }
+            }
+
+            if (validSize == false) {
+                throw new IllegalArgumentException("Multi-resolution input size " +
+                        inputConfig.getWidth() + "x" + inputConfig.getHeight() + " is not valid");
+            }
+        } else {
             StreamConfigurationMap configMap = mCharacteristics.get(
                     CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
 
diff --git a/core/java/android/hardware/camera2/impl/CameraMetadataNative.java b/core/java/android/hardware/camera2/impl/CameraMetadataNative.java
index e9bae0b..0cdf744 100644
--- a/core/java/android/hardware/camera2/impl/CameraMetadataNative.java
+++ b/core/java/android/hardware/camera2/impl/CameraMetadataNative.java
@@ -16,6 +16,7 @@
 
 package android.hardware.camera2.impl;
 
+import android.annotation.NonNull;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.graphics.ImageFormat;
 import android.graphics.Point;
@@ -53,6 +54,7 @@
 import android.hardware.camera2.params.HighSpeedVideoConfiguration;
 import android.hardware.camera2.params.LensShadingMap;
 import android.hardware.camera2.params.MandatoryStreamCombination;
+import android.hardware.camera2.params.MultiResolutionStreamConfigurationMap;
 import android.hardware.camera2.params.OisSample;
 import android.hardware.camera2.params.RecommendedStreamConfiguration;
 import android.hardware.camera2.params.RecommendedStreamConfigurationMap;
@@ -61,6 +63,7 @@
 import android.hardware.camera2.params.StreamConfigurationDuration;
 import android.hardware.camera2.params.StreamConfigurationMap;
 import android.hardware.camera2.params.TonemapCurve;
+import android.hardware.camera2.utils.ArrayUtils;
 import android.hardware.camera2.utils.TypeReference;
 import android.location.Location;
 import android.location.LocationManager;
@@ -79,9 +82,14 @@
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
 import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
 import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
 import java.util.List;
 import java.util.Objects;
+import java.util.Set;
 
 /**
  * Implementation of camera metadata marshal/unmarshal across Binder to
@@ -747,6 +755,15 @@
                         return (T) metadata.getExtendedSceneModeCapabilities();
                     }
                 });
+        sGetCommandMap.put(
+                CameraCharacteristics.SCALER_MULTI_RESOLUTION_STREAM_CONFIGURATION_MAP.getNativeKey(),
+                        new GetCommand() {
+                    @Override
+                    @SuppressWarnings("unchecked")
+                    public <T> T getValue(CameraMetadataNative metadata, Key<T> key) {
+                        return (T) metadata.getMultiResolutionStreamConfigurationMap();
+                    }
+                });
     }
 
     private int[] getAvailableFormats() {
@@ -1688,6 +1705,7 @@
     private boolean mHasMandatoryConcurrentStreams = false;
     private Size mDisplaySize = new Size(0, 0);
     private long mBufferSize = 0;
+    private MultiResolutionStreamConfigurationMap mMultiResolutionStreamConfigurationMap = null;
 
     /**
      * Set the current camera Id.
@@ -1723,6 +1741,30 @@
         mDisplaySize = displaySize;
     }
 
+    /**
+     * Set the multi-resolution stream configuration map.
+     *
+     * @param multiResolutionMap The multi-resolution stream configuration map.
+     *
+     * @hide
+     */
+    public void setMultiResolutionStreamConfigurationMap(
+            @NonNull Map<String, StreamConfiguration[]> multiResolutionMap) {
+        mMultiResolutionStreamConfigurationMap =
+                new MultiResolutionStreamConfigurationMap(multiResolutionMap);
+    }
+
+    /**
+     * Get the multi-resolution stream configuration map.
+     *
+     * @return The multi-resolution stream configuration map.
+     *
+     * @hide
+     */
+    public MultiResolutionStreamConfigurationMap getMultiResolutionStreamConfigurationMap() {
+        return mMultiResolutionStreamConfigurationMap;
+    }
+
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
     private long mMetadataPtr; // native std::shared_ptr<CameraMetadata>*
 
@@ -1777,6 +1819,7 @@
         mCameraId = other.mCameraId;
         mHasMandatoryConcurrentStreams = other.mHasMandatoryConcurrentStreams;
         mDisplaySize = other.mDisplaySize;
+        mMultiResolutionStreamConfigurationMap = other.mMultiResolutionStreamConfigurationMap;
         updateNativeAllocation();
         other.updateNativeAllocation();
     }
@@ -1980,6 +2023,39 @@
         return true;
     }
 
+    /**
+     * Return the set of physical camera ids that this logical {@link CameraDevice} is made
+     * up of.
+     *
+     * If the camera device isn't a logical camera, return an empty set.
+     *
+     * @hide
+     */
+    public Set<String> getPhysicalCameraIds() {
+        int[] availableCapabilities = get(CameraCharacteristics.REQUEST_AVAILABLE_CAPABILITIES);
+        if (availableCapabilities == null) {
+            throw new AssertionError("android.request.availableCapabilities must be non-null "
+                        + "in the characteristics");
+        }
+
+        if (!ArrayUtils.contains(availableCapabilities,
+                CameraCharacteristics.REQUEST_AVAILABLE_CAPABILITIES_LOGICAL_MULTI_CAMERA)) {
+            return Collections.emptySet();
+        }
+        byte[] physicalCamIds = get(CameraCharacteristics.LOGICAL_MULTI_CAMERA_PHYSICAL_IDS);
+
+        String physicalCamIdString = null;
+        try {
+            physicalCamIdString = new String(physicalCamIds, "UTF-8");
+        } catch (java.io.UnsupportedEncodingException e) {
+            throw new AssertionError("android.logicalCam.physicalIds must be UTF-8 string");
+        }
+        String[] physicalCameraIdArray = physicalCamIdString.split("\0");
+
+        return Collections.unmodifiableSet(
+                new HashSet<String>(Arrays.asList(physicalCameraIdArray)));
+    }
+
     static {
         registerAllMarshalers();
     }
diff --git a/core/java/android/hardware/camera2/impl/ICameraDeviceUserWrapper.java b/core/java/android/hardware/camera2/impl/ICameraDeviceUserWrapper.java
index ba4395f..b6b1968 100644
--- a/core/java/android/hardware/camera2/impl/ICameraDeviceUserWrapper.java
+++ b/core/java/android/hardware/camera2/impl/ICameraDeviceUserWrapper.java
@@ -140,9 +140,10 @@
         }
     }
 
-    public int createInputStream(int width, int height, int format) throws CameraAccessException {
+    public int createInputStream(int width, int height, int format, boolean isMultiResolution)
+            throws CameraAccessException {
         try {
-            return mRemoteDevice.createInputStream(width, height, format);
+            return mRemoteDevice.createInputStream(width, height, format, isMultiResolution);
         } catch (Throwable t) {
             CameraManager.throwAsPublicException(t);
             throw new UnsupportedOperationException("Unexpected exception", t);
diff --git a/core/java/android/hardware/camera2/params/InputConfiguration.java b/core/java/android/hardware/camera2/params/InputConfiguration.java
index 0a50f97..d63683f 100644
--- a/core/java/android/hardware/camera2/params/InputConfiguration.java
+++ b/core/java/android/hardware/camera2/params/InputConfiguration.java
@@ -16,9 +16,17 @@
 
 package android.hardware.camera2.params;
 
+import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.graphics.ImageFormat.Format;
+import android.hardware.camera2.params.MultiResolutionStreamInfo;
 import android.hardware.camera2.utils.HashCodeHelpers;
 
+import java.util.Collection;
+import java.util.List;
+
+import static com.android.internal.util.Preconditions.*;
+
 /**
  * Immutable class to store an input configuration that is used to create a reprocessable capture
  * session.
@@ -31,11 +39,12 @@
     private final int mWidth;
     private final int mHeight;
     private final int mFormat;
+    private final boolean mIsMultiResolution;
 
     /**
      * Create an input configration with the width, height, and user-defined format.
      *
-     * <p>Images of an user-defined format are accessible by applications. Use
+     * <p>Images of a user-defined format are accessible by applications. Use
      * {@link android.hardware.camera2.CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP}
      * to query supported input formats</p>
      *
@@ -51,6 +60,52 @@
         mWidth = width;
         mHeight = height;
         mFormat = format;
+        mIsMultiResolution = false;
+    }
+
+    /**
+     * Create an input configration with the format and a list of multi-resolution input stream
+     * info.
+     *
+     * <p>Use {@link
+     * android.hardware.camera2.CameraCharacteristics#SCALER_MULTI_RESOLUTION_STREAM_CONFIGURATION_MAP}
+     * to query supported multi-resolution input formats.</p>
+     *
+     * <p>To do reprocessing with variable resolution input, the application calls
+     * {@link android.media.ImageWriter#queueInputImage ImageWriter.queueInputImage}
+     * using an image from an {@link android.media.ImageReader ImageReader} or {@link
+     * android.hardware.camera2.MultiResolutionImageReader MultiResolutionImageReader}. See
+     * {@link android.hardware.camera2.CameraDevice#createReprocessCaptureRequest} for more
+     * details on camera reprocessing.
+     * </p>
+     *
+     * @param multiResolutionInputs A group of multi-resolution input info for the specified format.
+     * @param format Format of the input buffers. One of ImageFormat or PixelFormat constants.
+     *
+     * @see android.graphics.ImageFormat
+     * @see android.graphics.PixelFormat
+     * @see
+     * android.hardware.camera2.CameraCharacteristics#SCALER_MULTI_RESOLUTION_STREAM_CONFIGURATION_MAP
+     */
+    public InputConfiguration(@NonNull Collection<MultiResolutionStreamInfo> multiResolutionInputs,
+            @Format int format) {
+        checkCollectionNotEmpty(multiResolutionInputs, "Input multi-resolution stream info");
+        //TODO: Pick the default mode stream info for ultra-high resolution sensor camera
+        MultiResolutionStreamInfo info = multiResolutionInputs.iterator().next();
+        mWidth = info.getWidth();
+        mHeight = info.getHeight();
+        mFormat = format;
+        mIsMultiResolution = true;
+    }
+
+    /**
+     * @hide
+     */
+    public InputConfiguration(int width, int height, int format, boolean isMultiResolution) {
+        mWidth = width;
+        mHeight = height;
+        mFormat = format;
+        mIsMultiResolution = isMultiResolution;
     }
 
     /**
@@ -81,6 +136,18 @@
     }
 
     /**
+     * Whether this input configuration is of multi-resolution.
+     *
+     * <p>An multi-resolution InputConfiguration means that the reprocessing session created from it
+     * allows input images of different sizes.</p>
+     *
+     * @return  this input configuration is multi-resolution or not.
+     */
+    public boolean isMultiResolution() {
+        return mIsMultiResolution;
+    }
+
+    /**
      * Check if this InputConfiguration is equal to another InputConfiguration.
      *
      * <p>Two input configurations are equal if and only if they have the same widths, heights, and
@@ -100,7 +167,8 @@
 
         if (otherInputConfig.getWidth() == mWidth &&
                 otherInputConfig.getHeight() == mHeight &&
-                otherInputConfig.getFormat() == mFormat) {
+                otherInputConfig.getFormat() == mFormat &&
+                otherInputConfig.isMultiResolution() == mIsMultiResolution) {
             return true;
         }
         return false;
@@ -111,19 +179,21 @@
      */
     @Override
     public int hashCode() {
-        return HashCodeHelpers.hashCode(mWidth, mHeight, mFormat);
+        return HashCodeHelpers.hashCode(mWidth, mHeight, mFormat, mIsMultiResolution ? 1 : 0);
     }
 
     /**
      * Return this {@link InputConfiguration} as a string representation.
      *
-     * <p> {@code "InputConfiguration(w:%d, h:%d, format:%d)"}, where {@code %d} represents
-     * the width, height, and format, respectively.</p>
+     * <p> {@code "InputConfiguration(w:%d, h:%d, format:%d, isMultiResolution:%d)"},
+     * where {@code %d} represents the width, height, format, and multi-resolution flag
+     * respectively.</p>
      *
      * @return string representation of {@link InputConfiguration}
      */
     @Override
     public String toString() {
-        return String.format("InputConfiguration(w:%d, h:%d, format:%d)", mWidth, mHeight, mFormat);
+        return String.format("InputConfiguration(w:%d, h:%d, format:%d, isMultiResolution %b)",
+                mWidth, mHeight, mFormat, mIsMultiResolution);
     }
 }
diff --git a/core/java/android/hardware/camera2/params/MandatoryStreamCombination.java b/core/java/android/hardware/camera2/params/MandatoryStreamCombination.java
index 776d155..8a0172e 100644
--- a/core/java/android/hardware/camera2/params/MandatoryStreamCombination.java
+++ b/core/java/android/hardware/camera2/params/MandatoryStreamCombination.java
@@ -1297,19 +1297,6 @@
         }
 
         /**
-         * Size comparison method used by size comparators.
-         */
-        private static int compareSizes(int widthA, int heightA, int widthB, int heightB) {
-            long left = widthA * (long) heightA;
-            long right = widthB * (long) heightB;
-            if (left == right) {
-                left = widthA;
-                right = widthB;
-            }
-            return (left < right) ? -1 : (left > right ? 1 : 0);
-        }
-
-        /**
          * Size comparator that compares the number of pixels it covers.
          *
          * <p>If two the areas of two sizes are same, compare the widths.</p>
@@ -1317,8 +1304,8 @@
         public static class SizeComparator implements Comparator<Size> {
             @Override
             public int compare(@NonNull Size lhs, @NonNull Size rhs) {
-                return compareSizes(lhs.getWidth(), lhs.getHeight(), rhs.getWidth(),
-                        rhs.getHeight());
+                return StreamConfigurationMap.compareSizes(lhs.getWidth(), lhs.getHeight(),
+                        rhs.getWidth(), rhs.getHeight());
             }
         }
 
diff --git a/core/java/android/hardware/camera2/params/MultiResolutionStreamConfigurationMap.java b/core/java/android/hardware/camera2/params/MultiResolutionStreamConfigurationMap.java
new file mode 100644
index 0000000..1b368fb
--- /dev/null
+++ b/core/java/android/hardware/camera2/params/MultiResolutionStreamConfigurationMap.java
@@ -0,0 +1,335 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.hardware.camera2.params;
+
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+
+import android.graphics.ImageFormat;
+import android.graphics.ImageFormat.Format;
+import android.graphics.PixelFormat;
+import android.hardware.camera2.params.MultiResolutionStreamInfo;
+import android.hardware.camera2.params.StreamConfigurationMap;
+import android.hardware.camera2.utils.HashCodeHelpers;
+
+import android.util.Size;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.List;
+import java.util.Set;
+
+import static com.android.internal.util.Preconditions.*;
+
+/**
+ * Immutable class to store the information of the multi-resolution streams supported by
+ * the camera device.
+ *
+ * <p>For a {@link
+ * android.hardware.camera2.CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES_LOGICAL_MULTI_CAMERA
+ * logical multi-camera} or an ultra high resolution sensor camera, the maximum resolution of images
+ * produced by the camera device may be variable. For example, for a logical multi-camera, depending
+ * on factors such as current zoom ratio, the camera device may be backed by different physical
+ * cameras. If the physical cameras are of different resolutions, the application may intend to
+ * consume the variable full resolution images from the physical cameras. For an ultra high
+ * resolution sensor camera, the same use case exists where depending on lighting conditions, the
+ * camera device may deem it better to run in default mode and maximum resolution mode.
+ * </p>
+ *
+ * <p>For the use cases described above, multi-resolution output streams can be used by
+ * {@link android.hardware.camera2.MultiResolutionImageReader} to allow the
+ * camera device to output variable size maximum-resolution images.</p>
+ *
+ * <p>Similarly, multi-resolution input streams can be used for reprocessing of variable size
+ * images. In order to reprocess input images of different sizes, the {@link InputConfiguration}
+ * used for creating reprocessable session can be initialized using the group of input stream
+ * configurations returned by {@link #getInputInfo}.</p>
+ */
+public final class MultiResolutionStreamConfigurationMap {
+    /**
+     * Create a new {@link MultiResolutionStreamConfigurationMap}.
+     *
+     * @param configurations a non-{@code null} array of multi-resolution stream
+     *        configurations supported by this camera device
+     * @hide
+     */
+    public MultiResolutionStreamConfigurationMap(
+            @NonNull Map<String, StreamConfiguration[]> configurations) {
+        checkNotNull(configurations, "multi-resolution configurations must not be null");
+        if (configurations.size() == 0) {
+            throw new IllegalArgumentException("multi-resolution configurations must not be empty");
+        }
+
+        mConfigurations = configurations;
+
+        // For each multi-resolution stream configuration, track how many formats and sizes there
+        // are available to configure
+        for (Map.Entry<String, StreamConfiguration[]> entry :
+                mConfigurations.entrySet()) {
+            String cameraId = entry.getKey();
+            StreamConfiguration[] configs = entry.getValue();
+
+            for (int i = 0; i < configs.length; i++) {
+                StreamConfiguration config = configs[i];
+                int format = config.getFormat();
+
+                MultiResolutionStreamInfo multiResolutionStreamInfo = new MultiResolutionStreamInfo(
+                        config.getWidth(), config.getHeight(), cameraId);
+                Map<Integer, List<MultiResolutionStreamInfo>> destMap;
+                if (config.isInput()) {
+                    destMap = mMultiResolutionInputConfigs;
+                } else {
+                    destMap = mMultiResolutionOutputConfigs;
+                }
+
+                if (!destMap.containsKey(format)) {
+                    List<MultiResolutionStreamInfo> multiResolutionStreamInfoList =
+                            new ArrayList<MultiResolutionStreamInfo>();
+                    destMap.put(format, multiResolutionStreamInfoList);
+                }
+                destMap.get(format).add(multiResolutionStreamInfo);
+            }
+        }
+    }
+
+    /**
+     * Size comparator that compares the number of pixels two MultiResolutionStreamInfo size covers.
+     *
+     * <p>If two the areas of two sizes are same, compare the widths.</p>
+     *
+     * @hide
+     */
+    public static class SizeComparator implements Comparator<MultiResolutionStreamInfo> {
+        @Override
+        public int compare(@NonNull MultiResolutionStreamInfo lhs,
+                @NonNull MultiResolutionStreamInfo rhs) {
+            return StreamConfigurationMap.compareSizes(
+                    lhs.getWidth(), lhs.getHeight(), rhs.getWidth(), rhs.getHeight());
+        }
+    }
+
+    /**
+     * Get the output formats in this multi-resolution stream configuration.
+     *
+     * <p>A logical multi-camera or an ultra high resolution sensor camera may support
+     * {@link android.hardware.camera2.MultiResolutionImageReader} to dynamically output maximum
+     * resolutions of different sizes (when switching between physical cameras, or between different
+     * modes of an ultra high resolution sensor camera). This function returns the formats
+     * supported for such case.</p>
+     *
+     * <p>All image formats returned by this function will be defined in either {@link ImageFormat}
+     * or in {@link PixelFormat} (and there is no possibility of collision).</p>
+     *
+     * @return an array of integer format, or empty array if multi-resolution output is not
+     *         supported
+     *
+     * @see ImageFormat
+     * @see PixelFormat
+     * @see android.hardware.camera2.MultiResolutionImageReader
+     */
+    public @NonNull @Format int[] getOutputFormats() {
+        return getPublicImageFormats(/*output*/true);
+    }
+
+    /**
+     * Get the input formats in this multi-resolution stream configuration.
+     *
+     * <p>A logical multi-camera or ultra high resolution sensor camera may support reprocessing
+     * images of different resolutions when switching between physical cameras, or between
+     * different modes of the ultra high resolution sensor camera. This function returns the
+     * formats supported for such case.</p>
+     *
+     * <p>The supported output format for an input format can be queried by calling the camera
+     * device's {@link StreamConfigurationMap#getValidOutputFormatsForInput}.</p>
+     *
+     * <p>All image formats returned by this function will be defined in either {@link ImageFormat}
+     * or in {@link PixelFormat} (and there is no possibility of collision).</p>
+     *
+     * @return an array of integer format, or empty array if no multi-resolution reprocessing is
+     *         supported
+     *
+     * @see ImageFormat
+     * @see PixelFormat
+     */
+    public @NonNull @Format int[] getInputFormats() {
+        return getPublicImageFormats(/*output*/false);
+    }
+
+    // Get the list of publicly visible multi-resolution input/output stream formats
+    private int[] getPublicImageFormats(boolean output) {
+        Map<Integer, List<MultiResolutionStreamInfo>> multiResolutionConfigs =
+                output ? mMultiResolutionOutputConfigs : mMultiResolutionInputConfigs;
+        int formatCount = multiResolutionConfigs.size();
+
+        int[] formats = new int[formatCount];
+        int i = 0;
+        for (Integer format : multiResolutionConfigs.keySet()) {
+            formats[i++] = StreamConfigurationMap.imageFormatToPublic(format);
+        }
+
+        return formats;
+    }
+
+    /**
+     * Get a group of {@code MultiResolutionStreamInfo} with the requested output image
+     * {@code format}
+     *
+     * <p>The {@code format} should be a supported format (one of the formats returned by
+     * {@link #getOutputFormats}).</p>
+     *
+     * @param format an image format from {@link ImageFormat} or {@link PixelFormat}
+     * @return
+     *          a group of supported {@link MultiResolutionStreamInfo}. If the {@code format} is not
+     *          a supported multi-resolution output, an empty group is returned.
+     *
+     * @see ImageFormat
+     * @see PixelFormat
+     * @see #getOutputFormats
+     */
+    public @NonNull Collection<MultiResolutionStreamInfo> getOutputInfo(@Format int format) {
+        return getInfo(format, /*false*/ true);
+    }
+
+    /**
+     * Get a group of {@code MultiResolutionStreamInfo} with the requested input image {@code format}
+     *
+     * <p>The {@code format} should be a supported format (one of the formats returned by
+     * {@link #getInputFormats}).</p>
+     *
+     * @param format an image format from {@link ImageFormat} or {@link PixelFormat}
+     * @return
+     *          a group of supported {@link MultiResolutionStreamInfo}. If the {@code format} is not
+     *          a supported multi-resolution input, an empty group is returned.
+     *
+     * @see ImageFormat
+     * @see PixelFormat
+     * @see #getInputFormats
+     */
+    public @NonNull Collection<MultiResolutionStreamInfo> getInputInfo(@Format int format) {
+        return getInfo(format, /*false*/ false);
+    }
+
+    // Get multi-resolution stream info for a particular format
+    private @NonNull Collection<MultiResolutionStreamInfo> getInfo(int format, boolean output) {
+        int internalFormat = StreamConfigurationMap.imageFormatToInternal(format);
+        Map<Integer, List<MultiResolutionStreamInfo>> multiResolutionConfigs =
+                output ? mMultiResolutionOutputConfigs : mMultiResolutionInputConfigs;
+        if (multiResolutionConfigs.containsKey(internalFormat)) {
+            return Collections.unmodifiableCollection(multiResolutionConfigs.get(internalFormat));
+        } else {
+            return Collections.emptyList();
+        }
+    }
+
+    private void appendConfigurationsString(StringBuilder sb, boolean output) {
+        sb.append(output ? "Outputs(" : "Inputs(");
+        int[] formats = getPublicImageFormats(output);
+        if (formats != null) {
+            for (int format : formats) {
+                Collection<MultiResolutionStreamInfo> streamInfoList =
+                        getInfo(format, output);
+                sb.append("[" + StreamConfigurationMap.formatToString(format) + ":");
+                for (MultiResolutionStreamInfo streamInfo : streamInfoList) {
+                    sb.append(String.format("[w:%d, h:%d, id:%s], ",
+                            streamInfo.getWidth(), streamInfo.getHeight(),
+                            streamInfo.getPhysicalCameraId()));
+                }
+                // Remove the pending ", "
+                if (sb.charAt(sb.length() - 1) == ' ') {
+                    sb.delete(sb.length() - 2, sb.length());
+                }
+                sb.append("]");
+            }
+        }
+        sb.append(")");
+    }
+
+    /**
+     * Check if this {@link MultiResolutionStreamConfigurationMap} is equal to another
+     * {@link MultiResolutionStreamConfigurationMap}.
+     *
+     * @return {@code true} if the objects were equal, {@code false} otherwise
+     */
+    @Override
+    public boolean equals(final Object obj) {
+        if (obj == null) {
+            return false;
+        }
+        if (this == obj) {
+            return true;
+        }
+        if (obj instanceof MultiResolutionStreamConfigurationMap) {
+            final MultiResolutionStreamConfigurationMap other =
+                    (MultiResolutionStreamConfigurationMap) obj;
+            if (!mConfigurations.keySet().equals(other.mConfigurations.keySet())) {
+                return false;
+            }
+
+            for (String id : mConfigurations.keySet()) {
+                if (!Arrays.equals(mConfigurations.get(id), other.mConfigurations.get(id))) {
+                    return false;
+                }
+            }
+
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public int hashCode() {
+        return HashCodeHelpers.hashCodeGeneric(
+                mConfigurations, mMultiResolutionOutputConfigs, mMultiResolutionInputConfigs);
+    }
+
+    /**
+     * Return this {@link MultiResolutionStreamConfigurationMap} as a string representation.
+     *
+     * <p>{@code "MultiResolutionStreamConfigurationMap(Outputs([format1: [w:%d, h:%d, id:%s], ...
+     * ... [w:%d, h:%d, id:%s]), [format2: [w:%d, h:%d, id:%s], ... [w:%d, h:%d, id:%s]], ...),
+     * Inputs([format1: [w:%d, h:%d, id:%s], ... [w:%d, h:%d, id:%s], ...).</p>
+     *
+     * @return string representation of {@link MultiResolutionStreamConfigurationMap}
+     */
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder("MultiResolutionStreamConfigurationMap(");
+        appendConfigurationsString(sb, /*output*/ true);
+        sb.append(",");
+        appendConfigurationsString(sb, /*output*/ false);
+        sb.append(")");
+
+        return sb.toString();
+    }
+
+
+    private final Map<String, StreamConfiguration[]> mConfigurations;
+
+    /** Format -> list of MultiResolutionStreamInfo used to create MultiResolutionImageReader */
+    private final Map<Integer, List<MultiResolutionStreamInfo>> mMultiResolutionOutputConfigs
+            = new HashMap<Integer, List<MultiResolutionStreamInfo>>();
+    /** Format -> list of MultiResolutionStreamInfo used for multi-resolution reprocessing */
+    private final Map<Integer, List<MultiResolutionStreamInfo>> mMultiResolutionInputConfigs
+            = new HashMap<Integer, List<MultiResolutionStreamInfo>>();
+}
diff --git a/core/java/android/hardware/camera2/params/MultiResolutionStreamInfo.java b/core/java/android/hardware/camera2/params/MultiResolutionStreamInfo.java
new file mode 100644
index 0000000..aa1d1d4
--- /dev/null
+++ b/core/java/android/hardware/camera2/params/MultiResolutionStreamInfo.java
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.camera2.params;
+
+import android.annotation.NonNull;
+
+import java.util.Objects;
+
+/**
+ * A utility class describing the properties of one stream of fixed-size image buffers
+ * backing a multi-resolution image stream.
+ *
+ * <p>A group of {@link MultiResolutionStreamInfo} are used to describe the properties of a
+ * multi-resolution image stream for a particular format. The
+ * {@link android.hardware.camera2.MultiResolutionImageReader} class represents a
+ * multi-resolution output stream, and is constructed using a group of
+ * {@link MultiResolutionStreamInfo}. A group of {@link MultiResolutionStreamInfo} can also be used
+ * to create a multi-resolution reprocessable camera capture session. See
+ * {@link android.hardware.camera2.params.InputConfiguration} for details.</p>
+ *
+ * @see InputConfiguration
+ * @see android.hardware.camera2.MultiResolutionImageReader
+ */
+public class MultiResolutionStreamInfo {
+    private int mStreamWidth;
+    private int mStreamHeight;
+    private String mPhysicalCameraId;
+
+    /**
+     * Create a new {@link MultiResolutionStreamInfo}.
+     *
+     * <p>This class creates a {@link MultiResolutionStreamInfo} using image width, image height,
+     * and the physical camera Id images originate from.</p>
+     *
+     * <p>Normally applications do not need to create these directly. Use {@link
+     * MultiResolutionStreamConfigurationMap#getOutputInfo} or {@link
+     * MultiResolutionStreamConfigurationMap#getInputInfo} to obtain them for a particular format
+     * instead.</p>
+     */
+    public MultiResolutionStreamInfo(int streamWidth, int streamHeight,
+            @NonNull String physicalCameraId) {
+        mStreamWidth = streamWidth;
+        mStreamHeight = streamHeight;
+        mPhysicalCameraId = physicalCameraId;
+    }
+
+    /**
+     * The width of this particular image buffer stream in pixels.
+     */
+    public int getWidth() {
+        return mStreamWidth;
+    }
+
+    /**
+     * The height of this particular image buffer stream in pixels.
+     */
+    public int getHeight() {
+        return mStreamHeight;
+    }
+
+    /**
+     * The physical camera Id of this particular image buffer stream.
+     */
+    public @NonNull String getPhysicalCameraId() {
+        return mPhysicalCameraId;
+    }
+
+    /**
+     * Check if this {@link MultiResolutionStreamInfo} is equal to another
+     * {@link MultiResolutionStreamInfo}.
+     *
+     * @return {@code true} if the objects were equal, {@code false} otherwise
+     */
+    @Override
+    public boolean equals(final Object obj) {
+        if (obj == null) {
+            return false;
+        }
+        if (this == obj) {
+            return true;
+        }
+        if (obj instanceof MultiResolutionStreamInfo) {
+            final MultiResolutionStreamInfo other = (MultiResolutionStreamInfo) obj;
+            return mStreamWidth == other.mStreamWidth &&
+                    mStreamHeight == other.mStreamHeight &&
+                    mPhysicalCameraId.equals(other.mPhysicalCameraId);
+        }
+        return false;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public int hashCode() {
+        return Objects.hash(
+                mStreamWidth, mStreamHeight, mPhysicalCameraId);
+    }
+}
diff --git a/core/java/android/hardware/camera2/params/OutputConfiguration.java b/core/java/android/hardware/camera2/params/OutputConfiguration.java
index a20a1bf..e31bd60 100644
--- a/core/java/android/hardware/camera2/params/OutputConfiguration.java
+++ b/core/java/android/hardware/camera2/params/OutputConfiguration.java
@@ -24,9 +24,13 @@
 import android.annotation.SystemApi;
 import android.graphics.ImageFormat;
 import android.hardware.camera2.CameraCaptureSession;
+import android.hardware.camera2.CameraCharacteristics;
 import android.hardware.camera2.CameraDevice;
+import android.hardware.camera2.MultiResolutionImageReader;
+import android.hardware.camera2.params.MultiResolutionStreamInfo;
 import android.hardware.camera2.utils.HashCodeHelpers;
 import android.hardware.camera2.utils.SurfaceUtils;
+import android.media.ImageReader;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.util.Log;
@@ -34,6 +38,7 @@
 import android.view.Surface;
 
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
 import java.util.Objects;
@@ -81,6 +86,13 @@
  * {@link CameraCaptureSession#updateOutputConfiguration} can be called after the configuration
  * finalize method returns without exceptions.</li>
  *
+ * <li>If the camera device supports multi-resolution output streams, {@link
+ * CameraCharacteristics#SCALER_MULTI_RESOLUTION_STREAM_CONFIGURATION_MAP} will contain the
+ * formats and their corresponding stream info. The application can use an OutputConfiguration
+ * created with the multi-resolution stream info queried from {@link
+ * MultiResolutionStreamConfigurationMap#getOutputInfo} and
+ * {@link android.hardware.camera2.MultiResolutionImageReader} to capture variable size images.
+ *
  * </ul>
  *
  * <p> As of {@link android.os.Build.VERSION_CODES#P Android P}, all formats except
@@ -88,6 +100,7 @@
  * device support. On prior API levels, only {@link ImageFormat#PRIVATE} format may be used.</p>
  *
  * @see CameraDevice#createCaptureSessionByOutputConfigurations
+ * @see CameraCharacteristics#SCALER_MULTI_RESOLUTION_STREAM_CONFIGURATION_MAP
  *
  */
 public final class OutputConfiguration implements Parcelable {
@@ -206,6 +219,33 @@
     }
 
     /**
+     * Set the multi-resolution output flag.
+     *
+     * <p>Specify that this OutputConfiguration is part of a multi-resolution output stream group
+     * used by {@link android.hardware.camera2.MultiResolutionImageReader}.</p>
+     *
+     * <p>This function must only be called for an OutputConfiguration with a non-negative
+     * group ID. And all OutputConfigurations of a MultiResolutionImageReader will have the same
+     * group ID and have this flag set.</p>
+     *
+     * @throws IllegalStateException If surface sharing is enabled via {@link #enableSurfaceSharing}
+     *         call, or no non-negative group ID has been set.
+     * @hide
+     */
+    void setMultiResolutionOutput() {
+        if (mIsShared) {
+            throw new IllegalStateException("Multi-resolution output flag must not be set for " +
+                    "configuration with surface sharing");
+        }
+        if (mSurfaceGroupId == SURFACE_GROUP_ID_NONE) {
+            throw new IllegalStateException("Multi-resolution output flag should only be set for " +
+                    "surface with non-negative group ID");
+        }
+
+        mIsMultiResolution = true;
+    }
+
+    /**
      * Create a new {@link OutputConfiguration} instance.
      *
      * <p>This constructor takes an argument for desired camera rotation</p>
@@ -265,6 +305,45 @@
         mIsDeferredConfig = false;
         mIsShared = false;
         mPhysicalCameraId = null;
+        mIsMultiResolution = false;
+    }
+
+    /**
+     * Create a list of {@link OutputConfiguration} instances for the outputs used by a
+     * {@link android.hardware.camera2.MultiResolutionImageReader}.
+     *
+     * <p>This constructor takes an argument for a
+     * {@link android.hardware.camera2.MultiResolutionImageReader}.</p>
+     *
+     * @param multiResolutionImageReader
+     *          The multi-resolution image reader object.
+     */
+    public static @NonNull Collection<OutputConfiguration> createInstancesForMultiResolutionOutput(
+            @NonNull MultiResolutionImageReader multiResolutionImageReader)  {
+        checkNotNull(multiResolutionImageReader, "Multi-resolution image reader must not be null");
+
+        int groupId = MULTI_RESOLUTION_GROUP_ID_COUNTER;
+        MULTI_RESOLUTION_GROUP_ID_COUNTER++;
+        // Skip in case the group id counter overflows to -1, the invalid value.
+        if (MULTI_RESOLUTION_GROUP_ID_COUNTER == -1) {
+            MULTI_RESOLUTION_GROUP_ID_COUNTER++;
+        }
+
+        ImageReader[] imageReaders = multiResolutionImageReader.getReaders();
+        ArrayList<OutputConfiguration> configs = new ArrayList<OutputConfiguration>();
+        for (int i = 0; i < imageReaders.length; i++) {
+            MultiResolutionStreamInfo streamInfo =
+                    multiResolutionImageReader.getStreamInfoForImageReader(imageReaders[i]);
+
+            OutputConfiguration config = new OutputConfiguration(
+                    groupId, imageReaders[i].getSurface());
+            config.setPhysicalCameraId(streamInfo.getPhysicalCameraId());
+            config.setMultiResolutionOutput();
+            configs.add(config);
+            // TODO: Set sensor pixel mode for ultra high resolution sensor camera.
+        }
+
+        return configs;
     }
 
     /**
@@ -319,6 +398,7 @@
         mIsDeferredConfig = true;
         mIsShared = false;
         mPhysicalCameraId = null;
+        mIsMultiResolution = false;
     }
 
     /**
@@ -355,8 +435,18 @@
      * <p>Up to {@link #getMaxSharedSurfaceCount} surfaces can be shared for an OutputConfiguration.
      * The supported surfaces for sharing must be of type SurfaceTexture, SurfaceView,
      * MediaRecorder, MediaCodec, or implementation defined ImageReader.</p>
+     *
+     * <p>This function must not be called from OuptutConfigurations created by {@link
+     * #createInstancesForMultiResolutionOutput}.</p>
+     *
+     * @throws IllegalStateException If this OutputConfiguration is created via {@link
+     * #createInstancesForMultiResolutionOutput} to back a MultiResolutionImageReader.
      */
     public void enableSurfaceSharing() {
+        if (mIsMultiResolution) {
+            throw new IllegalStateException("Cannot enable surface sharing on "
+                    + "multi-resolution output configurations");
+        }
         mIsShared = true;
     }
 
@@ -368,8 +458,7 @@
      * This call achieves it by mapping the OutputConfiguration to the physical camera id.</p>
      *
      * <p>The valid physical camera ids can be queried by {@link
-     * android.hardware.camera2.CameraCharacteristics#getPhysicalCameraIds}.
-     * </p>
+     * CameraCharacteristics#getPhysicalCameraIds}.</p>
      *
      * <p>Passing in a null physicalCameraId means that the OutputConfiguration is for a logical
      * stream.</p>
@@ -380,8 +469,16 @@
      * after {@link CameraDevice#createCaptureSessionByOutputConfigurations} or {@link
      * CameraDevice#createReprocessableCaptureSessionByConfigurations} has no effect.</p>
      *
-     * <p>The surface belonging to a physical camera OutputConfiguration must not be used as input
-     * or output of a reprocessing request. </p>
+     * <p>As of {@link android.os.Build.VERSION_CODES#S Android 12}, an image buffer from a
+     * physical camera stream can be used for reprocessing to logical camera streams and streams
+     * from the same physical camera if the camera device supports multi-resolution input and output
+     * streams. See {@link CameraCharacteristics#SCALER_MULTI_RESOLUTION_STREAM_CONFIGURATION_MAP}
+     * for details. The behaviors of reprocessing from a non-physical camera stream to a physical
+     * camera stream, and from a physical camera stream to a physical camera stream of different
+     * physical camera, are device-specific and not guaranteed to be supported.</p>
+     *
+     * <p>On prior API levels, the surface belonging to a physical camera OutputConfiguration must
+     * not be used as input or output of a reprocessing request. </p>
      */
     public void setPhysicalCameraId(@Nullable String physicalCameraId) {
         mPhysicalCameraId = physicalCameraId;
@@ -527,6 +624,7 @@
         this.mIsDeferredConfig = other.mIsDeferredConfig;
         this.mIsShared = other.mIsShared;
         this.mPhysicalCameraId = other.mPhysicalCameraId;
+        this.mIsMultiResolution = other.mIsMultiResolution;
     }
 
     /**
@@ -543,6 +641,7 @@
         ArrayList<Surface> surfaces = new ArrayList<Surface>();
         source.readTypedList(surfaces, Surface.CREATOR);
         String physicalCameraId = source.readString();
+        boolean isMultiResolutionOutput = source.readInt() == 1;
 
         checkArgumentInRange(rotation, ROTATION_0, ROTATION_270, "Rotation constant");
 
@@ -566,6 +665,7 @@
             mConfiguredGenerationId = 0;
         }
         mPhysicalCameraId = physicalCameraId;
+        mIsMultiResolution = isMultiResolutionOutput;
     }
 
     /**
@@ -665,6 +765,7 @@
         dest.writeInt(mIsShared ? 1 : 0);
         dest.writeTypedList(mSurfaces);
         dest.writeString(mPhysicalCameraId);
+        dest.writeInt(mIsMultiResolution ? 1 : 0);
     }
 
     /**
@@ -694,7 +795,8 @@
                     mConfiguredFormat != other.mConfiguredFormat ||
                     mConfiguredDataspace != other.mConfiguredDataspace ||
                     mConfiguredGenerationId != other.mConfiguredGenerationId ||
-                    !Objects.equals(mPhysicalCameraId, other.mPhysicalCameraId))
+                    !Objects.equals(mPhysicalCameraId, other.mPhysicalCameraId) ||
+                    mIsMultiResolution != other.mIsMultiResolution)
                 return false;
 
             int minLen = Math.min(mSurfaces.size(), other.mSurfaces.size());
@@ -720,17 +822,24 @@
             return HashCodeHelpers.hashCode(
                     mRotation, mConfiguredSize.hashCode(), mConfiguredFormat, mConfiguredDataspace,
                     mSurfaceGroupId, mSurfaceType, mIsShared ? 1 : 0,
-                    mPhysicalCameraId == null ? 0 : mPhysicalCameraId.hashCode());
+                    mPhysicalCameraId == null ? 0 : mPhysicalCameraId.hashCode(),
+                    mIsMultiResolution ? 1 : 0);
         }
 
         return HashCodeHelpers.hashCode(
                 mRotation, mSurfaces.hashCode(), mConfiguredGenerationId,
                 mConfiguredSize.hashCode(), mConfiguredFormat,
                 mConfiguredDataspace, mSurfaceGroupId, mIsShared ? 1 : 0,
-                mPhysicalCameraId == null ? 0 : mPhysicalCameraId.hashCode());
+                mPhysicalCameraId == null ? 0 : mPhysicalCameraId.hashCode(),
+                mIsMultiResolution ? 1 : 0);
     }
 
     private static final String TAG = "OutputConfiguration";
+
+    // A surfaceGroupId counter used for MultiResolutionImageReader. Its value is
+    // incremented everytime {@link createInstancesForMultiResolutionOutput} is called.
+    private static int MULTI_RESOLUTION_GROUP_ID_COUNTER = 0;
+
     private ArrayList<Surface> mSurfaces;
     private final int mRotation;
     private final int mSurfaceGroupId;
@@ -749,4 +858,7 @@
     private boolean mIsShared;
     // The physical camera id that this output configuration is for.
     private String mPhysicalCameraId;
+    // Flag indicating if this config is for a multi-resolution output with a
+    // MultiResolutionImageReader
+    private boolean mIsMultiResolution;
 }
diff --git a/core/java/android/hardware/camera2/params/SessionConfiguration.java b/core/java/android/hardware/camera2/params/SessionConfiguration.java
index 8fc919f..ea6b92d 100644
--- a/core/java/android/hardware/camera2/params/SessionConfiguration.java
+++ b/core/java/android/hardware/camera2/params/SessionConfiguration.java
@@ -130,11 +130,13 @@
         int inputWidth = source.readInt();
         int inputHeight = source.readInt();
         int inputFormat = source.readInt();
+        boolean isInputMultiResolution = source.readBoolean();
         ArrayList<OutputConfiguration> outConfigs = new ArrayList<OutputConfiguration>();
         source.readTypedList(outConfigs, OutputConfiguration.CREATOR);
 
         if ((inputWidth > 0) && (inputHeight > 0) && (inputFormat != -1)) {
-            mInputConfig = new InputConfiguration(inputWidth, inputHeight, inputFormat);
+            mInputConfig = new InputConfiguration(inputWidth, inputHeight,
+                    inputFormat, isInputMultiResolution);
         }
         mSessionType = sessionType;
         mOutputConfigurations = outConfigs;
@@ -169,10 +171,12 @@
             dest.writeInt(mInputConfig.getWidth());
             dest.writeInt(mInputConfig.getHeight());
             dest.writeInt(mInputConfig.getFormat());
+            dest.writeBoolean(mInputConfig.isMultiResolution());
         } else {
             dest.writeInt(/*inputWidth*/ 0);
             dest.writeInt(/*inputHeight*/ 0);
             dest.writeInt(/*inputFormat*/ -1);
+            dest.writeBoolean(/*isMultiResolution*/ false);
         }
         dest.writeTypedList(mOutputConfigurations);
     }
diff --git a/core/java/android/hardware/camera2/params/StreamConfigurationMap.java b/core/java/android/hardware/camera2/params/StreamConfigurationMap.java
index 10a814a..a25ae60 100644
--- a/core/java/android/hardware/camera2/params/StreamConfigurationMap.java
+++ b/core/java/android/hardware/camera2/params/StreamConfigurationMap.java
@@ -1575,7 +1575,7 @@
         return sizes;
     }
 
-    /** Get the list of publically visible output formats; does not include IMPL_DEFINED */
+    /** Get the list of publicly visible output formats */
     private int[] getPublicFormats(boolean output) {
         int[] formats = new int[getPublicFormatCount(output)];
 
@@ -1746,6 +1746,21 @@
         return sb.toString();
     }
 
+    /**
+     * Size comparison method used by size comparators.
+     *
+     * @hide
+     */
+    public static int compareSizes(int widthA, int heightA, int widthB, int heightB) {
+        long left = widthA * (long) heightA;
+        long right = widthB * (long) heightB;
+        if (left == right) {
+            left = widthA;
+            right = widthB;
+        }
+        return (left < right) ? -1 : (left > right ? 1 : 0);
+    }
+
     private void appendOutputsString(StringBuilder sb) {
         sb.append("Outputs(");
         int[] formats = getOutputFormats();
@@ -1843,7 +1858,10 @@
         sb.append(")");
     }
 
-    private String formatToString(int format) {
+    /**
+     * @hide
+     */
+    public static String formatToString(int format) {
         switch (format) {
             case ImageFormat.YV12:
                 return "YV12";
diff --git a/core/java/android/hardware/lights/LightsRequest.java b/core/java/android/hardware/lights/LightsRequest.java
index 2626a46..6fb0eb5 100644
--- a/core/java/android/hardware/lights/LightsRequest.java
+++ b/core/java/android/hardware/lights/LightsRequest.java
@@ -17,6 +17,7 @@
 package android.hardware.lights;
 
 import android.annotation.NonNull;
+import android.annotation.SystemApi;
 import android.util.SparseArray;
 
 import com.android.internal.util.Preconditions;
@@ -94,6 +95,20 @@
         }
 
         /**
+         * Overrides the color and intensity of a given light.
+         *
+         * @param light the light to modify
+         * @param state the desired color and intensity of the light         *
+         * @deprecated Use {@link #addLight(Light, LightState)} instead.
+         * @hide
+         */
+        @SystemApi
+        @Deprecated
+        public @NonNull Builder setLight(@NonNull Light light, @NonNull LightState state) {
+            return addLight(light, state);
+        }
+
+        /**
          * Removes the override for the color and intensity of a given light.
          *
          * @param light the light to modify
diff --git a/core/java/android/net/INetworkPolicyManager.aidl b/core/java/android/net/INetworkPolicyManager.aidl
index b016ed6..9bf791b 100644
--- a/core/java/android/net/INetworkPolicyManager.aidl
+++ b/core/java/android/net/INetworkPolicyManager.aidl
@@ -19,8 +19,6 @@
 import android.net.INetworkPolicyListener;
 import android.net.Network;
 import android.net.NetworkPolicy;
-import android.net.NetworkQuotaInfo;
-import android.net.NetworkState;
 import android.net.NetworkTemplate;
 import android.telephony.SubscriptionPlan;
 
@@ -70,9 +68,6 @@
 
     int getMultipathPreference(in Network network);
 
-    @UnsupportedAppUsage(maxTargetSdk = 30, trackingBug = 170729553)
-    NetworkQuotaInfo getNetworkQuotaInfo(in NetworkState state);
-
     SubscriptionPlan[] getSubscriptionPlans(int subId, String callingPackage);
     void setSubscriptionPlans(int subId, in SubscriptionPlan[] plans, String callingPackage);
     String getSubscriptionPlansOwner(int subId);
diff --git a/core/java/android/net/IpSecAlgorithm.java b/core/java/android/net/IpSecAlgorithm.java
index 268002f..8f1e2de 100644
--- a/core/java/android/net/IpSecAlgorithm.java
+++ b/core/java/android/net/IpSecAlgorithm.java
@@ -232,10 +232,11 @@
         ALGO_TO_REQUIRED_FIRST_SDK.put(AUTH_HMAC_SHA512, SDK_VERSION_ZERO);
         ALGO_TO_REQUIRED_FIRST_SDK.put(AUTH_CRYPT_AES_GCM, SDK_VERSION_ZERO);
 
-        ALGO_TO_REQUIRED_FIRST_SDK.put(CRYPT_AES_CTR, Build.VERSION_CODES.S);
-        ALGO_TO_REQUIRED_FIRST_SDK.put(AUTH_AES_XCBC, Build.VERSION_CODES.S);
-        ALGO_TO_REQUIRED_FIRST_SDK.put(AUTH_AES_CMAC, Build.VERSION_CODES.S);
-        ALGO_TO_REQUIRED_FIRST_SDK.put(AUTH_CRYPT_CHACHA20_POLY1305, Build.VERSION_CODES.S);
+        // STOPSHIP: b/170424293 Use Build.VERSION_CODES.S when it is defined
+        ALGO_TO_REQUIRED_FIRST_SDK.put(CRYPT_AES_CTR, Build.VERSION_CODES.R + 1);
+        ALGO_TO_REQUIRED_FIRST_SDK.put(AUTH_AES_XCBC, Build.VERSION_CODES.R + 1);
+        ALGO_TO_REQUIRED_FIRST_SDK.put(AUTH_AES_CMAC, Build.VERSION_CODES.R + 1);
+        ALGO_TO_REQUIRED_FIRST_SDK.put(AUTH_CRYPT_CHACHA20_POLY1305, Build.VERSION_CODES.R + 1);
     }
 
     private static final Set<String> ENABLED_ALGOS =
diff --git a/core/java/android/net/NetworkStateSnapshot.java b/core/java/android/net/NetworkStateSnapshot.java
index b3d8d4e..0d26c2d 100644
--- a/core/java/android/net/NetworkStateSnapshot.java
+++ b/core/java/android/net/NetworkStateSnapshot.java
@@ -24,6 +24,8 @@
 import android.os.Parcel;
 import android.os.Parcelable;
 
+import com.android.net.module.util.NetworkIdentityUtils;
+
 import java.util.Objects;
 
 /**
@@ -124,4 +126,15 @@
     public int hashCode() {
         return Objects.hash(network, networkCapabilities, linkProperties, subscriberId, legacyType);
     }
+
+    @Override
+    public String toString() {
+        return "NetworkStateSnapshot{"
+                + "network=" + network
+                + ", networkCapabilities=" + networkCapabilities
+                + ", linkProperties=" + linkProperties
+                + ", subscriberId='" + NetworkIdentityUtils.scrubSubscriberId(subscriberId) + '\''
+                + ", legacyType=" + legacyType
+                + '}';
+    }
 }
diff --git a/core/java/android/net/vcn/IVcnUnderlyingNetworkPolicyListener.aidl b/core/java/android/net/vcn/IVcnUnderlyingNetworkPolicyListener.aidl
index f8ae492..62de821 100644
--- a/core/java/android/net/vcn/IVcnUnderlyingNetworkPolicyListener.aidl
+++ b/core/java/android/net/vcn/IVcnUnderlyingNetworkPolicyListener.aidl
@@ -17,6 +17,6 @@
 package android.net.vcn;
 
 /** @hide */
-interface IVcnUnderlyingNetworkPolicyListener {
+oneway interface IVcnUnderlyingNetworkPolicyListener {
     void onPolicyChanged();
 }
\ No newline at end of file
diff --git a/core/java/android/os/BytesMatcher.java b/core/java/android/os/BytesMatcher.java
new file mode 100644
index 0000000..8537f47
--- /dev/null
+++ b/core/java/android/os/BytesMatcher.java
@@ -0,0 +1,248 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.os;
+
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.bluetooth.BluetoothUuid;
+import android.net.MacAddress;
+import android.util.Log;
+
+import com.android.internal.util.HexDump;
+
+import java.util.ArrayList;
+import java.util.function.Predicate;
+
+/**
+ * Predicate that tests if a given {@code byte[]} value matches a set of
+ * configured rules.
+ * <p>
+ * Rules are tested in the order in which they were originally added, which
+ * means a narrow rule can reject a specific value before a later broader rule
+ * might accept that same value, or vice versa.
+ * <p>
+ * Matchers can contain rules of varying lengths, and tested values will only be
+ * matched against rules of the exact same length. This is designed to support
+ * {@link BluetoothUuid} style values which can be variable length.
+ *
+ * @hide
+ */
+public class BytesMatcher implements Predicate<byte[]> {
+   private static final String TAG = "BytesMatcher";
+
+   private static final char TYPE_ACCEPT = '+';
+   private static final char TYPE_REJECT = '-';
+
+   private final ArrayList<Rule> mRules = new ArrayList<>();
+
+   private static class Rule {
+       public final char type;
+       public final @NonNull byte[] value;
+       public final @Nullable byte[] mask;
+
+       public Rule(char type, @NonNull byte[] value, @Nullable byte[] mask) {
+           if (mask != null && value.length != mask.length) {
+               throw new IllegalArgumentException(
+                       "Expected length " + value.length + " but found " + mask.length);
+           }
+           this.type = type;
+           this.value = value;
+           this.mask = mask;
+       }
+
+       @Override
+       public String toString() {
+           StringBuilder builder = new StringBuilder();
+           encode(builder);
+           return builder.toString();
+       }
+
+       public void encode(@NonNull StringBuilder builder) {
+           builder.append(type);
+           builder.append(HexDump.toHexString(value));
+           if (mask != null) {
+               builder.append('/');
+               builder.append(HexDump.toHexString(mask));
+           }
+       }
+
+       public boolean test(@NonNull byte[] value) {
+           if (value.length != this.value.length) {
+               return false;
+           }
+           for (int i = 0; i < this.value.length; i++) {
+               byte local = this.value[i];
+               byte remote = value[i];
+               if (this.mask != null) {
+                   local &= this.mask[i];
+                   remote &= this.mask[i];
+               }
+               if (local != remote) {
+                   return false;
+               }
+           }
+           return true;
+       }
+   }
+
+   /**
+    * Add a rule that will result in {@link #test(byte[])} returning
+    * {@code true} when a value being tested matches it.
+    * <p>
+    * Rules are tested in the order in which they were originally added, which
+    * means a narrow rule can reject a specific value before a later broader
+    * rule might accept that same value, or vice versa.
+    *
+    * @param value to be matched
+    * @param mask to be applied to both values before testing for equality; if
+    *            {@code null} then both values must match exactly
+    */
+   public void addAcceptRule(@NonNull byte[] value, @Nullable byte[] mask) {
+       mRules.add(new Rule(TYPE_ACCEPT, value, mask));
+   }
+
+   /**
+    * Add a rule that will result in {@link #test(byte[])} returning
+    * {@code false} when a value being tested matches it.
+    * <p>
+    * Rules are tested in the order in which they were originally added, which
+    * means a narrow rule can reject a specific value before a later broader
+    * rule might accept that same value, or vice versa.
+    *
+    * @param value to be matched
+    * @param mask to be applied to both values before testing for equality; if
+    *            {@code null} then both values must match exactly
+    */
+   public void addRejectRule(@NonNull byte[] value, @Nullable byte[] mask) {
+       mRules.add(new Rule(TYPE_REJECT, value, mask));
+   }
+
+   /**
+    * Test if the given {@code ParcelUuid} value matches the set of rules
+    * configured in this matcher.
+    */
+   public boolean testBluetoothUuid(@NonNull ParcelUuid value) {
+       return test(BluetoothUuid.uuidToBytes(value));
+   }
+
+   /**
+    * Test if the given {@code MacAddress} value matches the set of rules
+    * configured in this matcher.
+    */
+   public boolean testMacAddress(@NonNull MacAddress value) {
+       return test(value.toByteArray());
+   }
+
+   /**
+    * Test if the given {@code byte[]} value matches the set of rules
+    * configured in this matcher.
+    */
+   @Override
+   public boolean test(@NonNull byte[] value) {
+       return test(value, false);
+   }
+
+   /**
+    * Test if the given {@code byte[]} value matches the set of rules
+    * configured in this matcher.
+    */
+   public boolean test(@NonNull byte[] value, boolean defaultValue) {
+       final int size = mRules.size();
+       for (int i = 0; i < size; i++) {
+           final Rule rule = mRules.get(i);
+           if (rule.test(value)) {
+               return (rule.type == TYPE_ACCEPT);
+           }
+       }
+       return defaultValue;
+   }
+
+   /**
+    * Encode the given matcher into a human-readable {@link String} which can
+    * be used to transport matchers across device boundaries.
+    * <p>
+    * The human-readable format is an ordered list separated by commas, where
+    * each rule is a {@code +} or {@code -} symbol indicating if the match
+    * should be accepted or rejected, then followed by a hex value and an
+    * optional hex mask. For example, {@code -caff,+cafe/ff00} is a valid
+    * encoded matcher.
+    *
+    * @see #decode(String)
+    */
+   public static @NonNull String encode(@NonNull BytesMatcher matcher) {
+       final StringBuilder builder = new StringBuilder();
+       final int size = matcher.mRules.size();
+       for (int i = 0; i < size; i++) {
+           final Rule rule = matcher.mRules.get(i);
+           rule.encode(builder);
+           builder.append(',');
+       }
+       builder.deleteCharAt(builder.length() - 1);
+       return builder.toString();
+   }
+
+   /**
+    * Decode the given human-readable {@link String} used to transport matchers
+    * across device boundaries.
+    * <p>
+    * The human-readable format is an ordered list separated by commas, where
+    * each rule is a {@code +} or {@code -} symbol indicating if the match
+    * should be accepted or rejected, then followed by a hex value and an
+    * optional hex mask. For example, {@code -caff,+cafe/ff00} is a valid
+    * encoded matcher.
+    *
+    * @see #encode(BytesMatcher)
+    */
+   public static @NonNull BytesMatcher decode(@NonNull String value) {
+       final BytesMatcher matcher = new BytesMatcher();
+       final int length = value.length();
+       for (int i = 0; i < length;) {
+           final char type = value.charAt(i);
+
+           int nextRule = value.indexOf(',', i);
+           int nextMask = value.indexOf('/', i);
+
+           if (nextRule == -1) nextRule = length;
+           if (nextMask > nextRule) nextMask = -1;
+
+           final byte[] ruleValue;
+           final byte[] ruleMask;
+           if (nextMask >= 0) {
+               ruleValue = HexDump.hexStringToByteArray(value.substring(i + 1, nextMask));
+               ruleMask = HexDump.hexStringToByteArray(value.substring(nextMask + 1, nextRule));
+           } else {
+               ruleValue = HexDump.hexStringToByteArray(value.substring(i + 1, nextRule));
+               ruleMask = null;
+           }
+
+           switch (type) {
+               case TYPE_ACCEPT:
+                   matcher.addAcceptRule(ruleValue, ruleMask);
+                   break;
+               case TYPE_REJECT:
+                   matcher.addRejectRule(ruleValue, ruleMask);
+                   break;
+               default:
+                   Log.w(TAG, "Ignoring unknown type " + type);
+                   break;
+           }
+
+           i = nextRule + 1;
+       }
+       return matcher;
+   }
+}
diff --git a/core/java/android/os/IPowerManager.aidl b/core/java/android/os/IPowerManager.aidl
index 8f61613..ae7d94c 100644
--- a/core/java/android/os/IPowerManager.aidl
+++ b/core/java/android/os/IPowerManager.aidl
@@ -42,8 +42,7 @@
     void updateWakeLockWorkSource(IBinder lock, in WorkSource ws, String historyTag);
     boolean isWakeLockLevelSupported(int level);
 
-    @UnsupportedAppUsage
-    void userActivity(long time, int event, int flags);
+    void userActivity(int displayId, long time, int event, int flags);
     void wakeUp(long time, int reason, String details, String opPackageName);
     @UnsupportedAppUsage(maxTargetSdk = 30, trackingBug = 170729553)
     void goToSleep(long time, int reason, int flags);
diff --git a/core/java/android/os/PowerManager.java b/core/java/android/os/PowerManager.java
index e5163d8..786a7d0 100644
--- a/core/java/android/os/PowerManager.java
+++ b/core/java/android/os/PowerManager.java
@@ -1277,7 +1277,7 @@
     })
     public void userActivity(long when, int event, int flags) {
         try {
-            mService.userActivity(when, event, flags);
+            mService.userActivity(mContext.getDisplayId(), when, event, flags);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
diff --git a/core/java/android/os/ZygoteProcess.java b/core/java/android/os/ZygoteProcess.java
index 9ffc5aa0..bf28981 100644
--- a/core/java/android/os/ZygoteProcess.java
+++ b/core/java/android/os/ZygoteProcess.java
@@ -333,7 +333,7 @@
      *                             started.
      * @param pkgDataInfoMap Map from related package names to private data directory
      *                       volume UUID and inode number.
-     * @param whitelistedDataInfoMap Map from allowlisted package names to private data directory
+     * @param allowlistedDataInfoList Map from allowlisted package names to private data directory
      *                       volume UUID and inode number.
      * @param bindMountAppsData whether zygote needs to mount CE and DE data.
      * @param bindMountAppStorageDirs whether zygote needs to mount Android/obb and Android/data.
@@ -359,7 +359,7 @@
                                                   @Nullable Map<String, Pair<String, Long>>
                                                           pkgDataInfoMap,
                                                   @Nullable Map<String, Pair<String, Long>>
-                                                          whitelistedDataInfoMap,
+                                                          allowlistedDataInfoList,
                                                   boolean bindMountAppsData,
                                                   boolean bindMountAppStorageDirs,
                                                   @Nullable String[] zygoteArgs) {
@@ -373,7 +373,7 @@
                     runtimeFlags, mountExternal, targetSdkVersion, seInfo,
                     abi, instructionSet, appDataDir, invokeWith, /*startChildZygote=*/ false,
                     packageName, zygotePolicyFlags, isTopApp, disabledCompatChanges,
-                    pkgDataInfoMap, whitelistedDataInfoMap, bindMountAppsData,
+                    pkgDataInfoMap, allowlistedDataInfoList, bindMountAppsData,
                     bindMountAppStorageDirs, zygoteArgs);
         } catch (ZygoteStartFailedEx ex) {
             Log.e(LOG_TAG,
@@ -615,7 +615,7 @@
      * @param disabledCompatChanges a list of disabled compat changes for the process being started.
      * @param pkgDataInfoMap Map from related package names to private data directory volume UUID
      *                       and inode number.
-     * @param whitelistedDataInfoMap Map from allowlisted package names to private data directory
+     * @param allowlistedDataInfoList Map from allowlisted package names to private data directory
      *                       volume UUID and inode number.
      * @param bindMountAppsData whether zygote needs to mount CE and DE data.
      * @param bindMountAppStorageDirs whether zygote needs to mount Android/obb and Android/data.
@@ -642,7 +642,7 @@
                                                       @Nullable Map<String, Pair<String, Long>>
                                                               pkgDataInfoMap,
                                                       @Nullable Map<String, Pair<String, Long>>
-                                                              whitelistedDataInfoMap,
+                                                              allowlistedDataInfoList,
                                                       boolean bindMountAppsData,
                                                       boolean bindMountAppStorageDirs,
                                                       @Nullable String[] extraArgs)
@@ -733,12 +733,12 @@
             }
             argsForZygote.add(sb.toString());
         }
-        if (whitelistedDataInfoMap != null && whitelistedDataInfoMap.size() > 0) {
+        if (allowlistedDataInfoList != null && allowlistedDataInfoList.size() > 0) {
             StringBuilder sb = new StringBuilder();
-            sb.append(Zygote.WHITELISTED_DATA_INFO_MAP);
+            sb.append(Zygote.ALLOWLISTED_DATA_INFO_MAP);
             sb.append("=");
             boolean started = false;
-            for (Map.Entry<String, Pair<String, Long>> entry : whitelistedDataInfoMap.entrySet()) {
+            for (Map.Entry<String, Pair<String, Long>> entry : allowlistedDataInfoList.entrySet()) {
                 if (started) {
                     sb.append(',');
                 }
@@ -1318,7 +1318,7 @@
                     true /* startChildZygote */, null /* packageName */,
                     ZYGOTE_POLICY_FLAG_SYSTEM_PROCESS /* zygotePolicyFlags */, false /* isTopApp */,
                     null /* disabledCompatChanges */, null /* pkgDataInfoMap */,
-                    null /* whitelistedDataInfoMap */, true /* bindMountAppsData*/,
+                    null /* allowlistedDataInfoList */, true /* bindMountAppsData*/,
                     /* bindMountAppStorageDirs */ false, extraArgs);
 
         } catch (ZygoteStartFailedEx ex) {
diff --git a/core/java/android/os/incremental/IncrementalManager.java b/core/java/android/os/incremental/IncrementalManager.java
index 87dced8..dc6f63a 100644
--- a/core/java/android/os/incremental/IncrementalManager.java
+++ b/core/java/android/os/incremental/IncrementalManager.java
@@ -58,6 +58,8 @@
 
     private static final String ALLOWED_PROPERTY = "incremental.allowed";
 
+    public static final int MIN_VERSION_TO_SUPPORT_FSVERITY = 2;
+
     public static final int CREATE_MODE_TEMPORARY_BIND =
             IIncrementalService.CREATE_MODE_TEMPORARY_BIND;
     public static final int CREATE_MODE_PERMANENT_BIND =
diff --git a/core/java/android/service/autofill/AutofillServiceInfo.java b/core/java/android/service/autofill/AutofillServiceInfo.java
index fbc25a6..4c8ee59 100644
--- a/core/java/android/service/autofill/AutofillServiceInfo.java
+++ b/core/java/android/service/autofill/AutofillServiceInfo.java
@@ -18,10 +18,13 @@
 import android.Manifest;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.UserIdInt;
 import android.app.AppGlobals;
 import android.content.ComponentName;
 import android.content.Context;
+import android.content.Intent;
 import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
 import android.content.pm.ServiceInfo;
 import android.content.res.Resources;
 import android.content.res.TypedArray;
@@ -44,6 +47,8 @@
 
 import java.io.IOException;
 import java.io.PrintWriter;
+import java.util.ArrayList;
+import java.util.List;
 
 /**
  * {@link ServiceInfo} and meta-data about an {@link AutofillService}.
@@ -76,6 +81,8 @@
 
     @Nullable
     private final String mSettingsActivity;
+    @Nullable
+    private final String mPasswordsActivity;
 
     @Nullable
     private final ArrayMap<String, Long> mCompatibilityPackages;
@@ -113,12 +120,14 @@
                 AutofillService.SERVICE_META_DATA);
         if (parser == null) {
             mSettingsActivity = null;
+            mPasswordsActivity = null;
             mCompatibilityPackages = null;
             mInlineSuggestionsEnabled = false;
             return;
         }
 
         String settingsActivity = null;
+        String passwordsActivity = null;
         ArrayMap<String, Long> compatibilityPackages = null;
         boolean inlineSuggestionsEnabled = false; // false by default.
 
@@ -139,6 +148,8 @@
                             com.android.internal.R.styleable.AutofillService);
                     settingsActivity = afsAttributes.getString(
                             R.styleable.AutofillService_settingsActivity);
+                    passwordsActivity = afsAttributes.getString(
+                            R.styleable.AutofillService_passwordsActivity);
                     inlineSuggestionsEnabled = afsAttributes.getBoolean(
                             R.styleable.AutofillService_supportsInlineSuggestions, false);
                 } finally {
@@ -155,6 +166,7 @@
         }
 
         mSettingsActivity = settingsActivity;
+        mPasswordsActivity = passwordsActivity;
         mCompatibilityPackages = compatibilityPackages;
         mInlineSuggestionsEnabled = inlineSuggestionsEnabled;
     }
@@ -221,6 +233,7 @@
         return compatibilityPackages;
     }
 
+    @NonNull
     public ServiceInfo getServiceInfo() {
         return mServiceInfo;
     }
@@ -230,6 +243,12 @@
         return mSettingsActivity;
     }
 
+    @Nullable
+    public String getPasswordsActivity() {
+        return mPasswordsActivity;
+    }
+
+    @Nullable
     public ArrayMap<String, Long> getCompatibilityPackages() {
         return mCompatibilityPackages;
     }
@@ -238,12 +257,37 @@
         return mInlineSuggestionsEnabled;
     }
 
+    /**
+     * Queries the valid autofill services available for the user.
+     */
+    public static List<AutofillServiceInfo> getAvailableServices(
+            Context context, @UserIdInt int user) {
+        final List<AutofillServiceInfo> services = new ArrayList<>();
+
+        final List<ResolveInfo> resolveInfos =
+                context.getPackageManager().queryIntentServicesAsUser(
+                        new Intent(AutofillService.SERVICE_INTERFACE),
+                        PackageManager.GET_META_DATA,
+                        user);
+        for (ResolveInfo resolveInfo : resolveInfos) {
+            final ServiceInfo serviceInfo = resolveInfo.serviceInfo;
+            try {
+                services.add(new AutofillServiceInfo(context, serviceInfo));
+            } catch (SecurityException e) {
+                // Service does not declare the proper permission, ignore it.
+                Log.w(TAG, "Error getting info for " + serviceInfo + ": " + e);
+            }
+        }
+        return services;
+    }
+
     @Override
     public String toString() {
         final StringBuilder builder = new StringBuilder();
         builder.append(getClass().getSimpleName());
         builder.append("[").append(mServiceInfo);
         builder.append(", settings:").append(mSettingsActivity);
+        builder.append(", passwords activity:").append(mPasswordsActivity);
         builder.append(", hasCompatPckgs:").append(mCompatibilityPackages != null
                 && !mCompatibilityPackages.isEmpty()).append("]");
         builder.append(", inline suggestions enabled:").append(mInlineSuggestionsEnabled);
@@ -256,6 +300,7 @@
     public void dump(String prefix, PrintWriter pw) {
         pw.print(prefix); pw.print("Component: "); pw.println(getServiceInfo().getComponentName());
         pw.print(prefix); pw.print("Settings: "); pw.println(mSettingsActivity);
+        pw.print(prefix); pw.print("Passwords activity: "); pw.println(mPasswordsActivity);
         pw.print(prefix); pw.print("Compat packages: "); pw.println(mCompatibilityPackages);
         pw.print(prefix); pw.print("Inline Suggestions Enabled: ");
         pw.println(mInlineSuggestionsEnabled);
diff --git a/core/java/android/telephony/PhoneStateListener.java b/core/java/android/telephony/PhoneStateListener.java
index e7ceada..e37921e 100644
--- a/core/java/android/telephony/PhoneStateListener.java
+++ b/core/java/android/telephony/PhoneStateListener.java
@@ -17,10 +17,7 @@
 package android.telephony;
 
 import android.Manifest;
-import android.annotation.CallbackExecutor;
-import android.annotation.IntDef;
 import android.annotation.NonNull;
-import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
 import android.annotation.SystemApi;
 import android.compat.annotation.ChangeId;
@@ -31,16 +28,12 @@
 import android.os.HandlerExecutor;
 import android.os.Looper;
 import android.telephony.Annotation.CallState;
-import android.telephony.Annotation.DataActivityType;
 import android.telephony.Annotation.DisconnectCauses;
-import android.telephony.Annotation.NetworkType;
 import android.telephony.Annotation.PreciseDisconnectCauses;
 import android.telephony.Annotation.RadioPowerState;
 import android.telephony.Annotation.SimActivationState;
 import android.telephony.Annotation.SrvccState;
-import android.telephony.NetworkRegistrationInfo.Domain;
 import android.telephony.TelephonyManager.DataEnabledReason;
-import android.telephony.TelephonyManager.DataState;
 import android.telephony.emergency.EmergencyNumber;
 import android.telephony.ims.ImsReasonInfo;
 
@@ -49,8 +42,6 @@
 
 import dalvik.system.VMRuntime;
 
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
 import java.lang.ref.WeakReference;
 import java.util.List;
 import java.util.Map;
@@ -71,49 +62,15 @@
  * information unless it has the appropriate permissions declared in
  * its manifest file. Where permissions apply, they are noted in the
  * appropriate LISTEN_ flags.
+ *
+ * @deprecated Use {@link TelephonyCallback} instead.
  */
+@Deprecated
 public class PhoneStateListener {
     private static final String LOG_TAG = "PhoneStateListener";
     private static final boolean DBG = false; // STOPSHIP if true
 
     /**
-     * Experiment flag to set the per-pid registration limit for PhoneStateListeners
-     *
-     * Limit on registrations of {@link PhoneStateListener}s on a per-pid
-     * basis. When this limit is exceeded, any calls to {@link TelephonyManager#listen} will fail
-     * with an {@link IllegalStateException}.
-     *
-     * {@link android.os.Process#PHONE_UID}, {@link android.os.Process#SYSTEM_UID}, and the uid that
-     * TelephonyRegistry runs under are exempt from this limit.
-     *
-     * If the value of the flag is less than 1, enforcement of the limit will be disabled.
-     * @hide
-     */
-    public static final String FLAG_PER_PID_REGISTRATION_LIMIT =
-            "phone_state_listener_per_pid_registration_limit";
-
-    /**
-     * Default value for the per-pid registation limit.
-     * See {@link #FLAG_PER_PID_REGISTRATION_LIMIT}.
-     * @hide
-     */
-    public static final int DEFAULT_PER_PID_REGISTRATION_LIMIT = 50;
-
-    /**
-     * This change enables a limit on the number of {@link PhoneStateListener} objects any process
-     * may register via {@link TelephonyManager#listen}. The default limit is 50, which may change
-     * via remote device config updates.
-     *
-     * This limit is enforced via an {@link IllegalStateException} thrown from
-     * {@link TelephonyManager#listen} when the offending process attempts to register one too many
-     * listeners.
-     *
-     * @hide
-     */
-    @ChangeId
-    public static final long PHONE_STATE_LISTENER_LIMIT_CHANGE_ID = 150880553L;
-
-    /**
      * Stop listening for updates.
      *
      * The PhoneStateListener is not tied to any subscription and unregistered for any update.
@@ -125,7 +82,7 @@
      *
      *  @see #onServiceStateChanged
      *  @see ServiceState
-     *  @deprecated Use {@link ServiceStateChangedListener} instead.
+     *  @deprecated Use {@link TelephonyCallback.ServiceStateListener} instead.
      */
     @Deprecated
     public static final int LISTEN_SERVICE_STATE                            = 0x00000001;
@@ -135,7 +92,7 @@
      * {@more}
      *
      * @see #onSignalStrengthChanged
-     * @deprecated Use {@link SignalStrengthsChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.SignalStrengthsListener} instead.
      */
     @Deprecated
     public static final int LISTEN_SIGNAL_STRENGTH                          = 0x00000002;
@@ -151,7 +108,7 @@
      * voicemail icon.
      *
      * @see #onMessageWaitingIndicatorChanged
-     * @deprecated Use {@link MessageWaitingIndicatorChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.MessageWaitingIndicatorListener} instead.
      */
     @Deprecated
     public static final int LISTEN_MESSAGE_WAITING_INDICATOR                = 0x00000004;
@@ -164,7 +121,7 @@
      * {@link TelephonyManager#hasCarrierPrivileges}).
      *
      * @see #onCallForwardingIndicatorChanged
-     * @deprecated Use {@link CallForwardingIndicatorChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.CallForwardingIndicatorListener} instead.
      */
     @Deprecated
     public static final int LISTEN_CALL_FORWARDING_INDICATOR                = 0x00000008;
@@ -182,7 +139,7 @@
      * instead.
      *
      * @see #onCellLocationChanged
-     * @deprecated Use {@link CellLocationChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.CellLocationListener} instead.
      */
     @Deprecated
     public static final int LISTEN_CELL_LOCATION                            = 0x00000010;
@@ -192,7 +149,7 @@
      * {@more}
      *
      * @see #onCallStateChanged
-     * @deprecated Use {@link CallStateChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.CallStateListener} instead.
      */
     @Deprecated
     public static final int LISTEN_CALL_STATE                               = 0x00000020;
@@ -201,7 +158,7 @@
      * Listen for changes to the data connection state (cellular).
      *
      * @see #onDataConnectionStateChanged
-     * @deprecated Use {@link DataConnectionStateChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.DataConnectionStateListener} instead.
      */
     @Deprecated
     public static final int LISTEN_DATA_CONNECTION_STATE                    = 0x00000040;
@@ -214,7 +171,7 @@
      * data-traffic icon.
      *
      * @see #onDataActivity
-     * @deprecated Use {@link DataActivityListener} instead.
+     * @deprecated Use {@link TelephonyCallback.DataActivityListener} instead.
      */
     @Deprecated
     public static final int LISTEN_DATA_ACTIVITY                            = 0x00000080;
@@ -226,7 +183,7 @@
      * icon.
      *
      * @see #onSignalStrengthsChanged
-     * @deprecated Use {@link SignalStrengthsChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.SignalStrengthsListener} instead.
      */
     @Deprecated
     public static final int LISTEN_SIGNAL_STRENGTHS                         = 0x00000100;
@@ -238,7 +195,8 @@
      * @see #onSignalStrengthsChanged
      *
      * @hide
-     * @deprecated Use {@link AlwaysReportedSignalStrengthChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.AlwaysReportedSignalStrengthListener}
+     * instead.
      */
     @Deprecated
     @RequiresPermission(android.Manifest.permission.LISTEN_ALWAYS_REPORTED_SIGNAL_STRENGTH)
@@ -251,7 +209,7 @@
      * permission.
      *
      * @see #onCellInfoChanged
-     * @deprecated Use {@link CellInfoChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.CellInfoListener} instead.
      */
     @Deprecated
     public static final int LISTEN_CELL_INFO = 0x00000400;
@@ -265,7 +223,7 @@
      * (see {@link TelephonyManager#hasCarrierPrivileges}).
      *
      * @hide
-     * @deprecated Use {@link PreciseCallStateChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.PreciseCallStateListener} instead.
      */
     @Deprecated
     @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
@@ -280,7 +238,7 @@
      * (see {@link TelephonyManager#hasCarrierPrivileges}).
      *
      * @see #onPreciseDataConnectionStateChanged
-     * @deprecated Use {@link PreciseDataConnectionStateChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.PreciseDataConnectionStateListener} instead.
      */
     @Deprecated
     @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
@@ -306,7 +264,7 @@
      *
      * @see #onServiceStateChanged(ServiceState)
      * @hide
-     * @deprecated Use {@link SrvccStateChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.SrvccStateListener} instead.
      */
     @Deprecated
     @SystemApi
@@ -328,7 +286,7 @@
      *
      * @see android.service.carrier.CarrierService#notifyCarrierNetworkChange(boolean)
      * @hide
-     * @deprecated Use {@link CarrierNetworkChangeListener} instead.
+     * @deprecated Use {@link TelephonyCallback.CarrierNetworkListener} instead.
      */
     @Deprecated
     public static final int LISTEN_CARRIER_NETWORK_CHANGE                   = 0x00010000;
@@ -349,7 +307,7 @@
      *
      * @see #onVoiceActivationStateChanged
      * @hide
-     * @deprecated Use {@link VoiceActivationStateChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.VoiceActivationStateListener} instead.
      */
     @Deprecated
     @SystemApi
@@ -369,7 +327,7 @@
      *
      * @see #onDataActivationStateChanged
      * @hide
-     * @deprecated Use {@link DataActivationStateChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.DataActivationStateListener} instead.
      */
     @Deprecated
     public static final int LISTEN_DATA_ACTIVATION_STATE                   = 0x00040000;
@@ -378,7 +336,7 @@
      *  Listen for changes to the user mobile data state
      *
      *  @see #onUserMobileDataStateChanged
-     *  @deprecated Use {@link UserMobileDataStateChangedListener} instead.
+     *  @deprecated Use {@link TelephonyCallback.UserMobileDataStateListener} instead.
      */
     @Deprecated
     public static final int LISTEN_USER_MOBILE_DATA_STATE                  = 0x00080000;
@@ -391,7 +349,7 @@
      *  {@link TelephonyManager#hasCarrierPrivileges}).
      *
      *  @see #onDisplayInfoChanged
-     * @deprecated Use {@link DisplayInfoChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.DisplayInfoListener} instead.
      */
     @Deprecated
     public static final int LISTEN_DISPLAY_INFO_CHANGED = 0x00100000;
@@ -401,7 +359,7 @@
      *
      *  @see #onPhoneCapabilityChanged
      *  @hide
-     *  @deprecated Use {@link PhoneCapabilityChangedListener} instead.
+     *  @deprecated Use {@link TelephonyCallback.PhoneCapabilityListener} instead.
      */
     @Deprecated
     public static final int LISTEN_PHONE_CAPABILITY_CHANGE                 = 0x00200000;
@@ -413,7 +371,7 @@
      *  subscription user selected as default data subscription in DSDS mode.
      *
      *  @see #onActiveDataSubscriptionIdChanged
-     *  @deprecated Use {@link ActiveDataSubscriptionIdChangedListener} instead.
+     *  @deprecated Use {@link TelephonyCallback.ActiveDataSubscriptionIdListener} instead.
      */
     @Deprecated
     public static final int LISTEN_ACTIVE_DATA_SUBSCRIPTION_ID_CHANGE = 0x00400000;
@@ -423,7 +381,7 @@
      *
      *  @see #onRadioPowerStateChanged
      *  @hide
-     *  @deprecated Use {@link RadioPowerStateChangedListener} instead.
+     *  @deprecated Use {@link TelephonyCallback.RadioPowerStateListener} instead.
      */
     @Deprecated
     @SystemApi
@@ -436,7 +394,7 @@
      * <p>Requires permission {@link android.Manifest.permission#READ_PHONE_STATE} or the calling
      * app has carrier privileges (see {@link TelephonyManager#hasCarrierPrivileges}).
      *
-     * @deprecated Use {@link EmergencyNumberListChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.EmergencyNumberListListener} instead.
      */
     @Deprecated
     public static final int LISTEN_EMERGENCY_NUMBER_LIST                   = 0x01000000;
@@ -449,7 +407,7 @@
      * or the calling app has carrier privileges
      * (see {@link TelephonyManager#hasCarrierPrivileges}).
      *
-     * @deprecated Use {@link CallDisconnectCauseChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.CallDisconnectCauseListener} instead.
      */
     @Deprecated
     @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
@@ -464,7 +422,7 @@
      *
      * @see #onCallAttributesChanged
      * @hide
-     * @deprecated Use {@link CallAttributesChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.CallAttributesListener} instead.
      */
     @Deprecated
     @SystemApi
@@ -480,7 +438,7 @@
      * (see {@link TelephonyManager#hasCarrierPrivileges}).
      *
      * @see #onImsCallDisconnectCauseChanged(ImsReasonInfo)
-     * @deprecated Use {@link ImsCallDisconnectCauseChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.ImsCallDisconnectCauseListener} instead.
      */
     @Deprecated
     @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
@@ -491,7 +449,7 @@
      *
      * @see #onOutgoingEmergencyCall
      * @hide
-     * @deprecated Use {@link OutgoingEmergencyCallListener} instead.
+     * @deprecated Use {@link TelephonyCallback.OutgoingEmergencyCallListener} instead.
      */
     @Deprecated
     @SystemApi
@@ -503,7 +461,7 @@
      *
      * @see #onOutgoingEmergencySms
      * @hide
-     * @deprecated Use {@link OutgoingEmergencySmsListener} instead.
+     * @deprecated Use {@link TelephonyCallback.OutgoingEmergencySmsListener} instead.
      */
     @Deprecated
     @SystemApi
@@ -524,7 +482,7 @@
      * of whether the calling app has carrier privileges.
      *
      * @see #onRegistrationFailed
-     * @deprecated Use {@link RegistrationFailedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.RegistrationFailedListener} instead.
      */
     @Deprecated
     @RequiresPermission(Manifest.permission.READ_PRECISE_PHONE_STATE)
@@ -540,540 +498,12 @@
      * of whether the calling app has carrier privileges.
      *
      * @see #onBarringInfoChanged
-     * @deprecated Use {@link BarringInfoChangedListener} instead.
+     * @deprecated Use {@link TelephonyCallback.BarringInfoListener} instead.
      */
     @Deprecated
     @RequiresPermission(Manifest.permission.READ_PRECISE_PHONE_STATE)
     public static final int LISTEN_BARRING_INFO = 0x80000000;
 
-    /**
-     *  Event for changes to the network service state (cellular).
-     *
-     *  @see ServiceStateChangedListener#onServiceStateChanged
-     *  @see ServiceState
-     *
-     * @hide
-     */
-    @SystemApi
-    public static final int EVENT_SERVICE_STATE_CHANGED = 1;
-
-    /**
-     * Event for changes to the network signal strength (cellular).
-     *
-     * @see SignalStrengthsChangedListener#onSignalStrengthsChanged
-     *
-     * @hide
-     */
-    @SystemApi
-    public static final int EVENT_SIGNAL_STRENGTH_CHANGED = 2;
-
-    /**
-     * Event for changes to the message-waiting indicator.
-     *
-     * Requires Permission: {@link android.Manifest.permission#READ_PHONE_STATE} or that
-     * the calling app has carrier privileges (see
-     * {@link TelephonyManager#hasCarrierPrivileges}).
-     * <p>
-     * Example: The status bar uses this to determine when to display the
-     * voicemail icon.
-     *
-     * @see MessageWaitingIndicatorChangedListener#onMessageWaitingIndicatorChanged
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
-    public static final int EVENT_MESSAGE_WAITING_INDICATOR_CHANGED = 3;
-
-    /**
-     * Event for changes to the call-forwarding indicator.
-     *
-     * Requires Permission: {@link android.Manifest.permission#READ_PHONE_STATE} or that
-     * the calling app has carrier privileges (see
-     * {@link TelephonyManager#hasCarrierPrivileges}).
-     *
-     * @see CallForwardingIndicatorChangedListener#onCallForwardingIndicatorChanged
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
-    public static final int EVENT_CALL_FORWARDING_INDICATOR_CHANGED = 4;
-
-    /**
-     * Event for changes to the device's cell location. Note that
-     * this will result in frequent callbacks to the listener.
-     *
-     * If you need regular location updates but want more control over
-     * the update interval or location precision, you can set up a listener
-     * through the {@link android.location.LocationManager location manager}
-     * instead.
-     *
-     * @see CellLocationChangedListener#onCellLocationChanged
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION)
-    public static final int EVENT_CELL_LOCATION_CHANGED = 5;
-
-    /**
-     * Event for changes to the device call state.
-     *
-     * @see CallStateChangedListener#onCallStateChanged
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(android.Manifest.permission.READ_CALL_LOG)
-    public static final int EVENT_CALL_STATE_CHANGED = 6;
-
-    /**
-     * Event for changes to the data connection state (cellular).
-     *
-     * @see DataConnectionStateChangedListener#onDataConnectionStateChanged
-     *
-     * @hide
-     */
-    @SystemApi
-    public static final int EVENT_DATA_CONNECTION_STATE_CHANGED = 7;
-
-    /**
-     * Event for changes to the direction of data traffic on the data
-     * connection (cellular).
-     *
-     * Example: The status bar uses this to display the appropriate
-     * data-traffic icon.
-     *
-     * @see DataActivityListener#onDataActivity
-     *
-     * @hide
-     */
-    @SystemApi
-    public static final int EVENT_DATA_ACTIVITY_CHANGED = 8;
-
-    /**
-     * Event for changes to the network signal strengths (cellular).
-     * <p>
-     * Example: The status bar uses this to control the signal-strength
-     * icon.
-     *
-     * @see SignalStrengthsChangedListener#onSignalStrengthsChanged
-     *
-     * @hide
-     */
-    @SystemApi
-    public static final int EVENT_SIGNAL_STRENGTHS_CHANGED = 9;
-
-    /**
-     * Event for changes of the network signal strengths (cellular) always reported from modem,
-     * even in some situations such as the screen of the device is off.
-     *
-     * @see AlwaysReportedSignalStrengthChangedListener#onSignalStrengthsChanged
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(android.Manifest.permission.LISTEN_ALWAYS_REPORTED_SIGNAL_STRENGTH)
-    public static final int EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED = 10;
-
-    /**
-     * Event for changes to observed cell info.
-     *
-     * @see CellInfoChangedListener#onCellInfoChanged
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION)
-    public static final int EVENT_CELL_INFO_CHANGED = 11;
-
-    /**
-     * Event for {@link android.telephony.Annotation.PreciseCallStates} of ringing,
-     * background and foreground calls.
-     *
-     * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE}
-     * or the calling app has carrier privileges
-     * (see {@link TelephonyManager#hasCarrierPrivileges}).
-     *
-     * @see PreciseCallStateChangedListener#onPreciseCallStateChanged
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
-    public static final int EVENT_PRECISE_CALL_STATE_CHANGED = 12;
-
-    /**
-     * Event for {@link PreciseDataConnectionState} on the data connection (cellular).
-     *
-     * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE}
-     * or the calling app has carrier privileges
-     * (see {@link TelephonyManager#hasCarrierPrivileges}).
-     *
-     * @see PreciseDataConnectionStateChangedListener#onPreciseDataConnectionStateChanged
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
-    public static final int EVENT_PRECISE_DATA_CONNECTION_STATE_CHANGED = 13;
-
-    /**
-     * Event for real time info for all data connections (cellular)).
-     *
-     * @see #onDataConnectionRealTimeInfoChanged(DataConnectionRealTimeInfo)
-     *
-     * @deprecated Use {@link TelephonyManager#requestModemActivityInfo}
-     * @hide
-     */
-    @Deprecated
-    @SystemApi
-    @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
-    public static final int EVENT_DATA_CONNECTION_REAL_TIME_INFO_CHANGED = 14;
-
-    /**
-     * Event for OEM hook raw event
-     *
-     * @see #onOemHookRawEvent
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
-    public static final int EVENT_OEM_HOOK_RAW = 15;
-
-    /**
-     * Event for changes to the SRVCC state of the active call.
-     *
-     * @see SrvccStateChangedListener#onSrvccStateChanged
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
-    public static final int EVENT_SRVCC_STATE_CHANGED = 16;
-
-    /**
-     * Event for carrier network changes indicated by a carrier app.
-     *
-     * @see android.service.carrier.CarrierService#notifyCarrierNetworkChange(boolean)
-     * @see CarrierNetworkChangeListener#onCarrierNetworkChange
-     *
-     * @hide
-     */
-    @SystemApi
-    public static final int EVENT_CARRIER_NETWORK_CHANGED = 17;
-
-    /**
-     * Event for changes to the sim voice activation state
-     *
-     * @see TelephonyManager#SIM_ACTIVATION_STATE_ACTIVATING
-     * @see TelephonyManager#SIM_ACTIVATION_STATE_ACTIVATED
-     * @see TelephonyManager#SIM_ACTIVATION_STATE_DEACTIVATED
-     * @see TelephonyManager#SIM_ACTIVATION_STATE_RESTRICTED
-     * @see TelephonyManager#SIM_ACTIVATION_STATE_UNKNOWN
-     *
-     * Example: TelephonyManager#SIM_ACTIVATION_STATE_ACTIVATED indicates voice service has been
-     * fully activated
-     *
-     * @see VoiceActivationStateChangedListener#onVoiceActivationStateChanged
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
-    public static final int EVENT_VOICE_ACTIVATION_STATE_CHANGED = 18;
-
-    /**
-     * Event for changes to the sim data activation state
-     * @see TelephonyManager#SIM_ACTIVATION_STATE_ACTIVATING
-     * @see TelephonyManager#SIM_ACTIVATION_STATE_ACTIVATED
-     * @see TelephonyManager#SIM_ACTIVATION_STATE_DEACTIVATED
-     * @see TelephonyManager#SIM_ACTIVATION_STATE_RESTRICTED
-     * @see TelephonyManager#SIM_ACTIVATION_STATE_UNKNOWN
-     *
-     * Example: TelephonyManager#SIM_ACTIVATION_STATE_ACTIVATED indicates data service has been
-     * fully activated
-     *
-     * @see DataActivationStateChangedListener#onDataActivationStateChanged
-     * @hide
-     */
-    @SystemApi
-    public static final int EVENT_DATA_ACTIVATION_STATE_CHANGED = 19;
-
-    /**
-     *  Event for changes to the user mobile data state
-     *
-     *  @see UserMobileDataStateChangedListener#onUserMobileDataStateChanged
-     *
-     *  @hide
-     */
-    @SystemApi
-    public static final int EVENT_USER_MOBILE_DATA_STATE_CHANGED = 20;
-
-    /**
-     *  Event for display info changed event.
-     *
-     *  @see DisplayInfoChangedListener#onDisplayInfoChanged
-     *
-     *  @hide
-     */
-    @SystemApi
-    public static final int EVENT_DISPLAY_INFO_CHANGED = 21;
-
-    /**
-     *  Event for changes to the phone capability.
-     *
-     *  @see PhoneCapabilityChangedListener#onPhoneCapabilityChanged
-     *
-     *  @hide
-     */
-    @SystemApi
-    public static final int EVENT_PHONE_CAPABILITY_CHANGED = 22;
-
-    /**
-     *  Event for changes to active data subscription ID. Active data subscription is
-     *  the current subscription used to setup Cellular Internet data. For example,
-     *  it could be the current active opportunistic subscription in use, or the
-     *  subscription user selected as default data subscription in DSDS mode.
-     *
-     *  <p>Requires permission {@link android.Manifest.permission#READ_PHONE_STATE} or the calling
-     *  app has carrier privileges (see {@link TelephonyManager#hasCarrierPrivileges}).
-     *
-     *  @see ActiveDataSubscriptionIdChangedListener#onActiveDataSubscriptionIdChanged
-     *
-     *  @hide
-     */
-    @SystemApi
-    @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
-    public static final int EVENT_ACTIVE_DATA_SUBSCRIPTION_ID_CHANGED = 23;
-
-    /**
-     *  Event for changes to the radio power state.
-     *
-     *  @see RadioPowerStateChangedListener#onRadioPowerStateChanged
-     *
-     *  @hide
-     */
-    @SystemApi
-    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
-    public static final int EVENT_RADIO_POWER_STATE_CHANGED = 24;
-
-    /**
-     * Event for changes to emergency number list based on all active subscriptions.
-     *
-     * <p>Requires permission {@link android.Manifest.permission#READ_PHONE_STATE} or the calling
-     * app has carrier privileges (see {@link TelephonyManager#hasCarrierPrivileges}).
-     *
-     *  @see EmergencyNumberListChangedListener#onEmergencyNumberListChanged
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
-    public static final int EVENT_EMERGENCY_NUMBER_LIST_CHANGED = 25;
-
-    /**
-     * Event for call disconnect causes which contains {@link DisconnectCause} and
-     * {@link PreciseDisconnectCause}.
-     *
-     * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE}
-     * or the calling app has carrier privileges
-     * (see {@link TelephonyManager#hasCarrierPrivileges}).
-     *
-     *  @see CallDisconnectCauseChangedListener#onCallDisconnectCauseChanged
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
-    public static final int EVENT_CALL_DISCONNECT_CAUSE_CHANGED = 26;
-
-    /**
-     * Event for changes to the call attributes of a currently active call.
-     *
-     * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE}
-     * or the calling app has carrier privileges
-     * (see {@link TelephonyManager#hasCarrierPrivileges}).
-     *
-     * @see CallAttributesChangedListener#onCallAttributesChanged
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
-    public static final int EVENT_CALL_ATTRIBUTES_CHANGED = 27;
-
-    /**
-     * Event for IMS call disconnect causes which contains
-     * {@link android.telephony.ims.ImsReasonInfo}
-     *
-     * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE}
-     * or the calling app has carrier privileges
-     * (see {@link TelephonyManager#hasCarrierPrivileges}).
-     *
-     * @see ImsCallDisconnectCauseChangedListener#onImsCallDisconnectCauseChanged(ImsReasonInfo)
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
-    public static final int EVENT_IMS_CALL_DISCONNECT_CAUSE_CHANGED = 28;
-
-    /**
-     * Event for the emergency number placed from an outgoing call.
-     *
-     * @see OutgoingEmergencyCallListener#onOutgoingEmergencyCall
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION)
-    public static final int EVENT_OUTGOING_EMERGENCY_CALL = 29;
-
-    /**
-     * Event for the emergency number placed from an outgoing SMS.
-     *
-     * @see OutgoingEmergencySmsListener#onOutgoingEmergencySms
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION)
-    public static final int EVENT_OUTGOING_EMERGENCY_SMS = 30;
-
-    /**
-     * Event for registration failures.
-     *
-     * Event for indications that a registration procedure has failed in either the CS or PS
-     * domain. This indication does not necessarily indicate a change of service state, which should
-     * be tracked via {@link #EVENT_SERVICE_STATE_CHANGED}.
-     *
-     * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE} or
-     * the calling app has carrier privileges (see {@link TelephonyManager#hasCarrierPrivileges}).
-     *
-     * <p>Also requires the {@link Manifest.permission#ACCESS_FINE_LOCATION} permission, regardless
-     * of whether the calling app has carrier privileges.
-     *
-     * @see RegistrationFailedListener#onRegistrationFailed
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(allOf = {
-            Manifest.permission.READ_PRECISE_PHONE_STATE,
-            Manifest.permission.ACCESS_FINE_LOCATION
-    })
-    public static final int EVENT_REGISTRATION_FAILURE = 31;
-
-    /**
-     * Event for Barring Information for the current registered / camped cell.
-     *
-     * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE} or
-     * the calling app has carrier privileges (see {@link TelephonyManager#hasCarrierPrivileges}).
-     *
-     * <p>Also requires the {@link Manifest.permission#ACCESS_FINE_LOCATION} permission, regardless
-     * of whether the calling app has carrier privileges.
-     *
-     * @see BarringInfoChangedListener#onBarringInfoChanged
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(allOf = {
-            Manifest.permission.READ_PRECISE_PHONE_STATE,
-            Manifest.permission.ACCESS_FINE_LOCATION
-    })
-    public static final int EVENT_BARRING_INFO_CHANGED = 32;
-
-    /**
-     * Event for changes to the physical channel configuration.
-     *
-     * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE}
-     * or the calling app has carrier privileges
-     * (see {@link TelephonyManager#hasCarrierPrivileges}).
-     *
-     * @see PhysicalChannelConfigChangedListener#onPhysicalChannelConfigChanged
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(Manifest.permission.READ_PRECISE_PHONE_STATE)
-    public static final int EVENT_PHYSICAL_CHANNEL_CONFIG_CHANGED = 33;
-
-
-    /**
-     * Event for changes to the data enabled.
-     *
-     * Event for indications that the enabled status of current data has changed.
-     *
-     * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE}
-     * or the calling app has carrier privileges
-     * (see {@link TelephonyManager#hasCarrierPrivileges}).
-     *
-     * @see DataEnabledChangedListener#onDataEnabledChanged
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(Manifest.permission.READ_PRECISE_PHONE_STATE)
-    public static final int EVENT_DATA_ENABLED_CHANGED = 34;
-
-    /**
-     * Event for changes to allowed network list based on all active subscriptions.
-     *
-     * <p>Requires permission {@link android.Manifest.permission#READ_PHONE_STATE} or the calling
-     * app has carrier privileges (see {@link TelephonyManager#hasCarrierPrivileges}).
-     *
-     * @hide
-     * @see AllowedNetworkTypesChangedListener#onAllowedNetworkTypesChanged
-     */
-    @SystemApi
-    @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
-    public static final int EVENT_ALLOWED_NETWORK_TYPE_LIST_CHANGED = 35;
-
-    /** @hide */
-    @IntDef(prefix = { "EVENT_" }, value = {
-            EVENT_SERVICE_STATE_CHANGED,
-            EVENT_SIGNAL_STRENGTH_CHANGED,
-            EVENT_MESSAGE_WAITING_INDICATOR_CHANGED,
-            EVENT_CALL_FORWARDING_INDICATOR_CHANGED,
-            EVENT_CELL_LOCATION_CHANGED,
-            EVENT_CALL_STATE_CHANGED,
-            EVENT_DATA_CONNECTION_STATE_CHANGED,
-            EVENT_DATA_ACTIVITY_CHANGED,
-            EVENT_SIGNAL_STRENGTHS_CHANGED,
-            EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED,
-            EVENT_CELL_INFO_CHANGED,
-            EVENT_PRECISE_CALL_STATE_CHANGED,
-            EVENT_PRECISE_DATA_CONNECTION_STATE_CHANGED,
-            EVENT_DATA_CONNECTION_REAL_TIME_INFO_CHANGED,
-            EVENT_OEM_HOOK_RAW,
-            EVENT_SRVCC_STATE_CHANGED,
-            EVENT_CARRIER_NETWORK_CHANGED,
-            EVENT_VOICE_ACTIVATION_STATE_CHANGED,
-            EVENT_DATA_ACTIVATION_STATE_CHANGED,
-            EVENT_USER_MOBILE_DATA_STATE_CHANGED,
-            EVENT_DISPLAY_INFO_CHANGED,
-            EVENT_PHONE_CAPABILITY_CHANGED,
-            EVENT_ACTIVE_DATA_SUBSCRIPTION_ID_CHANGED,
-            EVENT_RADIO_POWER_STATE_CHANGED,
-            EVENT_EMERGENCY_NUMBER_LIST_CHANGED,
-            EVENT_CALL_DISCONNECT_CAUSE_CHANGED,
-            EVENT_CALL_ATTRIBUTES_CHANGED,
-            EVENT_IMS_CALL_DISCONNECT_CAUSE_CHANGED,
-            EVENT_OUTGOING_EMERGENCY_CALL,
-            EVENT_OUTGOING_EMERGENCY_SMS,
-            EVENT_REGISTRATION_FAILURE,
-            EVENT_BARRING_INFO_CHANGED,
-            EVENT_PHYSICAL_CHANNEL_CONFIG_CHANGED,
-            EVENT_DATA_ENABLED_CHANGED,
-            EVENT_ALLOWED_NETWORK_TYPE_LIST_CHANGED
-    })
-    @Retention(RetentionPolicy.SOURCE)
-    public @interface TelephonyEvent {}
-
     /*
      * Subscription used to listen to the phone state changes
      * @hide
@@ -1085,19 +515,16 @@
     /**
      * @hide
      */
-    //TODO: The maxTargetSdk should be S if the build time tool updates it.
     @VisibleForTesting(visibility = VisibleForTesting.Visibility.PACKAGE)
     @UnsupportedAppUsage(
             maxTargetSdk = Build.VERSION_CODES.R,
-            publicAlternatives = "Use {@code TelephonyManager#registerPhoneStateListener(" +
-                    "Executor, PhoneStateListener)} instead")
-    public IPhoneStateListener callback;
+            publicAlternatives = "Use {@code TelephonyManager#registerTelephonyCallback(" +
+                    "Executor, TelephonyCallback)} instead")
+    public final IPhoneStateListener callback;
 
     /**
      * Create a PhoneStateListener for the Phone with the default subscription.
-     * If this is created for use with deprecated API
-     * {@link TelephonyManager#listen(PhoneStateListener, int)}, then this class requires
-     * Looper.myLooper() not return null.
+     * This class requires Looper.myLooper() not return null.
      */
     public PhoneStateListener() {
         this(null, Looper.myLooper());
@@ -1135,10 +562,7 @@
      */
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
     public PhoneStateListener(Integer subId, Looper looper) {
-        if (looper != null) {
-            setExecutor(new HandlerExecutor(new Handler(looper)));
-        }
-        mSubId = subId;
+        this(subId, new HandlerExecutor(new Handler(looper)));
         if (subId != null && VMRuntime.getRuntime().getTargetSdkVersion()
                 >= Build.VERSION_CODES.Q) {
             throw new IllegalArgumentException("PhoneStateListener with subId: "
@@ -1153,783 +577,18 @@
      * The Executor must not be null.
      *
      * @param executor a non-null Executor that will execute callbacks for the PhoneStateListener.
-     * @deprecated Use
-     * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)} instead.
      */
     @Deprecated
     public PhoneStateListener(@NonNull Executor executor) {
-        setExecutor(executor);
-        mSubId = null;
+        this(null, executor);
     }
 
-    private @NonNull Executor mExecutor;
-
-    /**
-     * @hide
-     */
-    public void setExecutor(@NonNull @CallbackExecutor Executor executor) {
-        if (executor == null) {
+    private PhoneStateListener(Integer subId, Executor e) {
+        if (e == null) {
             throw new IllegalArgumentException("PhoneStateListener Executor must be non-null");
         }
-        mExecutor = executor;
-        callback = new IPhoneStateListenerStub(this, mExecutor);
-    }
-
-    /**
-     * @hide
-     */
-    public boolean isExecutorSet() {
-        return mExecutor != null;
-    }
-
-    /**
-     * Interface for service state listener.
-     */
-    public interface ServiceStateChangedListener {
-        /**
-         * Callback invoked when device service state changes on the registered subscription.
-         * Note, the registration subscription ID comes from {@link TelephonyManager} object
-         * which registers PhoneStateListener by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         *
-         * The instance of {@link ServiceState} passed as an argument here will have various
-         * levels of location information stripped from it depending on the location permissions
-         * that your app holds.
-         * Only apps holding the {@link Manifest.permission#ACCESS_FINE_LOCATION} permission will
-         * receive all the information in {@link ServiceState}.
-         *
-         * @see ServiceState#STATE_EMERGENCY_ONLY
-         * @see ServiceState#STATE_IN_SERVICE
-         * @see ServiceState#STATE_OUT_OF_SERVICE
-         * @see ServiceState#STATE_POWER_OFF
-         */
-        @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
-        public void onServiceStateChanged(@NonNull ServiceState serviceState);
-    }
-
-    /**
-     * Interface for message waiting indicator listener.
-     */
-    public interface MessageWaitingIndicatorChangedListener {
-        /**
-         * Callback invoked when the message-waiting indicator changes on the registered
-         * subscription.
-         * Note, the registration subscription ID comes from {@link TelephonyManager} object by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         */
-        @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
-        public void onMessageWaitingIndicatorChanged(boolean mwi);
-    }
-
-    /**
-     * Interface for call-forwarding indicator listener.
-     */
-    public interface CallForwardingIndicatorChangedListener {
-        /**
-         * Callback invoked when the call-forwarding indicator changes on the registered
-         * subscription.
-         * Note, the registration subscription ID comes from {@link TelephonyManager} object
-         * which registers PhoneStateListener by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         */
-        @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
-        public void onCallForwardingIndicatorChanged(boolean cfi);
-    }
-
-    /**
-     * Interface for device cell location listener.
-     */
-    public interface CellLocationChangedListener {
-        /**
-         * Callback invoked when device cell location changes on the registered subscription.
-         * Note, the registration subscription ID comes from {@link TelephonyManager} object
-         * which registers PhoneStateListener by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         */
-        @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION)
-        public void onCellLocationChanged(@NonNull CellLocation location);
-    }
-
-    /**
-     * Interface for call state listener.
-     */
-    public interface CallStateChangedListener {
-        /**
-         * Callback invoked when device call state changes.
-         * <p>
-         * Reports the state of Telephony (mobile) calls on the device for the registered s
-         * ubscription.
-         * <p>
-         * Note: the registration subscription ID comes from {@link TelephonyManager} object
-         * which registers PhoneStateListener by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         * <p>
-         * Note: The state returned here may differ from that returned by
-         * {@link TelephonyManager#getCallState()}. Receivers of this callback should be aware that
-         * calling {@link TelephonyManager#getCallState()} from within this callback may return a
-         * different state than the callback reports.
-         *
-         * @param state call state
-         * @param phoneNumber call phone number. If application does not have
-         * {@link android.Manifest.permission#READ_CALL_LOG} permission or carrier
-         * privileges (see {@link TelephonyManager#hasCarrierPrivileges}), an empty string will be
-         * passed as an argument.
-         */
-        @RequiresPermission(android.Manifest.permission.READ_CALL_LOG)
-        public void onCallStateChanged(@CallState int state, @Nullable String phoneNumber);
-    }
-
-    /**
-     * Interface for data connection state listener.
-     */
-    public interface DataConnectionStateChangedListener {
-        /**
-         * Callback invoked when connection state changes on the registered subscription.
-         * Note, the registration subscription ID comes from {@link TelephonyManager} object
-         * which registers PhoneStateListener by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         *
-         * @see TelephonyManager#DATA_DISCONNECTED
-         * @see TelephonyManager#DATA_CONNECTING
-         * @see TelephonyManager#DATA_CONNECTED
-         * @see TelephonyManager#DATA_SUSPENDED
-         *
-         * @param state is the current state of data connection.
-         * @param networkType is the current network type of data connection.
-         */
-        @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
-        public void onDataConnectionStateChanged(@DataState int state,
-                                                 @NetworkType int networkType);
-    }
-
-    /**
-     * Interface for data activity state listener.
-     */
-    public interface DataActivityListener {
-        /**
-         * Callback invoked when data activity state changes on the registered subscription.
-         * Note, the registration subscription ID comes from {@link TelephonyManager} object
-         * which registers PhoneStateListener by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         *
-         * @see TelephonyManager#DATA_ACTIVITY_NONE
-         * @see TelephonyManager#DATA_ACTIVITY_IN
-         * @see TelephonyManager#DATA_ACTIVITY_OUT
-         * @see TelephonyManager#DATA_ACTIVITY_INOUT
-         * @see TelephonyManager#DATA_ACTIVITY_DORMANT
-         */
-        @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
-        public void onDataActivity(@DataActivityType int direction);
-    }
-
-    /**
-     * Interface for network signal strengths listener.
-     */
-    public interface SignalStrengthsChangedListener {
-        /**
-         * Callback invoked when network signal strengths changes on the registered subscription.
-         * Note, the registration subscription ID comes from {@link TelephonyManager} object
-         * which registers PhoneStateListener by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         */
-        @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
-        public void onSignalStrengthsChanged(@NonNull SignalStrength signalStrength);
-    }
-
-    /**
-     * Interface for network signal strengths listener which always reported from modem.
-     */
-    public interface AlwaysReportedSignalStrengthChangedListener {
-        /**
-         * Callback always invoked from modem when network signal strengths changes on the
-         * registered subscription.
-         * Note, the registration subscription ID comes from {@link TelephonyManager} object
-         * which registers PhoneStateListener by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         */
-        @RequiresPermission(android.Manifest.permission.LISTEN_ALWAYS_REPORTED_SIGNAL_STRENGTH)
-        public void onSignalStrengthsChanged(@NonNull SignalStrength signalStrength);
-    }
-
-    /**
-     * Interface for cell info listener.
-     */
-    public interface CellInfoChangedListener {
-        /**
-         * Callback invoked when a observed cell info has changed or new cells have been added
-         * or removed on the registered subscription.
-         * Note, the registration subscription ID s from {@link TelephonyManager} object
-         * which registersPhoneStateListener by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         *
-         * @param cellInfo is the list of currently visible cells.
-         */
-        @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION)
-        public void onCellInfoChanged(@NonNull List<CellInfo> cellInfo);
-    }
-
-    /**
-     * Interface for precise device call state listener.
-     *
-     * @hide
-     */
-    @SystemApi
-    public interface PreciseCallStateChangedListener {
-        /**
-         * Callback invoked when precise device call state changes on the registered subscription.
-         * Note, the registration subscription ID comes from {@link TelephonyManager} object
-         * which registers PhoneStateListener by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         *
-         * @param callState {@link PreciseCallState}
-         */
-        @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
-        public void onPreciseCallStateChanged(@NonNull PreciseCallState callState);
-    }
-
-    /**
-     * Interface for call disconnect cause listener.
-     */
-    public interface CallDisconnectCauseChangedListener {
-        /**
-         * Callback invoked when call disconnect cause changes on the registered subscription.
-         * Note, the registration subscription ID comes from {@link TelephonyManager} object
-         * which registers PhoneStateListener by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         *
-         * @param disconnectCause {@link DisconnectCause}.
-         * @param preciseDisconnectCause {@link PreciseDisconnectCause}.
-         */
-        @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
-        public void onCallDisconnectCauseChanged(@DisconnectCauses int disconnectCause,
-                @PreciseDisconnectCauses int preciseDisconnectCause);
-    }
-
-    /**
-     * Interface for IMS call disconnect cause listener.
-     */
-    public interface ImsCallDisconnectCauseChangedListener {
-        /**
-         * Callback invoked when IMS call disconnect cause changes on the registered subscription.
-         * Note, the registration subscription ID comes from {@link TelephonyManager} object
-         * which registers PhoneStateListener by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         *
-         * @param imsReasonInfo {@link ImsReasonInfo} contains details on why IMS call failed.
-         *
-         */
-        @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
-        public void onImsCallDisconnectCauseChanged(@NonNull ImsReasonInfo imsReasonInfo);
-    }
-
-    /**
-     * Interface for precise data connection state listener.
-     */
-    public interface PreciseDataConnectionStateChangedListener {
-        /**
-         * Callback providing update about the default/internet data connection on the registered
-         * subscription.
-         *
-         * Note, the registration subscription ID comes from {@link TelephonyManager} object
-         * which registers PhoneStateListener by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         *
-         * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE}
-         * or the calling app has carrier privileges
-         * (see {@link TelephonyManager#hasCarrierPrivileges}).
-         *
-         * @param dataConnectionState {@link PreciseDataConnectionState}
-         */
-        @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
-        public void onPreciseDataConnectionStateChanged(
-                @NonNull PreciseDataConnectionState dataConnectionState);
-    }
-
-    /**
-     * Interface for Single Radio Voice Call Continuity listener.
-     *
-     * @hide
-     */
-    @SystemApi
-    public interface SrvccStateChangedListener {
-        /**
-         * Callback invoked when there has been a change in the Single Radio Voice Call Continuity
-         * (SRVCC) state for the currently active call on the registered subscription.
-         *
-         * Note, the registration subscription ID comes from {@link TelephonyManager} object
-         * which registers PhoneStateListener by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         */
-        @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
-        public void onSrvccStateChanged(@SrvccState int srvccState);
-    }
-
-    /**
-     * Interface for SIM voice activation state listener.
-     *
-     * @hide
-     */
-    @SystemApi
-    public interface VoiceActivationStateChangedListener {
-        /**
-         * Callback invoked when the SIM voice activation state has changed on the registered
-         * subscription.
-         * Note, the registration subscription ID comes from {@link TelephonyManager} object
-         * which registers PhoneStateListener by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         *
-         * @param state is the current SIM voice activation state
-         */
-        @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
-        public void onVoiceActivationStateChanged(@SimActivationState int state);
-
-    }
-
-    /**
-     * Interface for SIM data activation state listener.
-     */
-    public interface DataActivationStateChangedListener {
-        /**
-         * Callback invoked when the SIM data activation state has changed on the registered
-         * subscription.
-         * Note, the registration subscription ID comes from {@link TelephonyManager} object
-         * which registers PhoneStateListener by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         *
-         * @param state is the current SIM data activation state
-         */
-        @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
-        public void onDataActivationStateChanged(@SimActivationState int state);
-    }
-
-    /**
-     * Interface for user mobile data state listener.
-     */
-    public interface UserMobileDataStateChangedListener {
-        /**
-         * Callback invoked when the user mobile data state has changed on the registered
-         * subscription.
-         * Note, the registration subscription ID comes from {@link TelephonyManager} object
-         * which registers PhoneStateListener by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         *
-         * @param enabled indicates whether the current user mobile data state is enabled or
-         *                disabled.
-         */
-        @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
-        public void onUserMobileDataStateChanged(boolean enabled);
-    }
-
-    /**
-     * Interface for display info listener.
-     */
-    public interface DisplayInfoChangedListener {
-        /**
-         * Callback invoked when the display info has changed on the registered subscription.
-         * <p> The {@link TelephonyDisplayInfo} contains status information shown to the user
-         * based on carrier policy.
-         *
-         * @param telephonyDisplayInfo The display information.
-         */
-        @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
-        public void onDisplayInfoChanged(@NonNull TelephonyDisplayInfo telephonyDisplayInfo);
-    }
-
-    /**
-     * Interface for the current emergency number list listener.
-     */
-    public interface EmergencyNumberListChangedListener {
-        /**
-         * Callback invoked when the current emergency number list has changed on the registered
-         * subscription.
-         *
-         * Note, the registered subscription is associated with {@link TelephonyManager} object
-         * on which
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}
-         * was called.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * given subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         *
-         * @param emergencyNumberList Map associating all active subscriptions on the device with
-         *                            the list of emergency numbers originating from that
-         *                            subscription.
-         *                            If there are no active subscriptions, the map will contain a
-         *                            single entry with
-         *                            {@link SubscriptionManager#INVALID_SUBSCRIPTION_ID} as
-         *                            the key and a list of emergency numbers as the value. If no
-         *                            emergency number information is available, the value will be
-         *                            empty.
-         */
-        @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
-        public void onEmergencyNumberListChanged(
-                @NonNull Map<Integer, List<EmergencyNumber>> emergencyNumberList);
-    }
-
-    /**
-     * Interface for outgoing emergency call listener.
-     *
-     * @hide
-     */
-    @SystemApi
-    public interface OutgoingEmergencyCallListener {
-        /**
-         * Callback invoked when an outgoing call is placed to an emergency number.
-         *
-         * This method will be called when an emergency call is placed on any subscription
-         * (including the no-SIM case), regardless of which subscription this listener was
-         * registered on.
-         *
-         * The default implementation of this method calls
-         * {@link #onOutgoingEmergencyCall(EmergencyNumber)} for backwards compatibility purposes.
-         * Do not call {@code super(...)} from within your implementation unless you want
-         * {@link #onOutgoingEmergencyCall(EmergencyNumber)} to be called as well.
-         *
-         * @param placedEmergencyNumber The {@link EmergencyNumber} the emergency call was
-         *                              placed to.
-         * @param subscriptionId The subscription ID used to place the emergency call. If the
-         *                       emergency call was placed without a valid subscription
-         *                       (e.g. when there are no SIM cards in the device), this will be
-         *                       equal to {@link SubscriptionManager#INVALID_SUBSCRIPTION_ID}.
-         */
-        @RequiresPermission(Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION)
-        public void onOutgoingEmergencyCall(@NonNull EmergencyNumber placedEmergencyNumber,
-                                     int subscriptionId);
-    }
-
-    /**
-     * Interface for outgoing emergency sms listener.
-     *
-     * @hide
-     */
-    @SystemApi
-    public interface OutgoingEmergencySmsListener {
-        /**
-         * Smsback invoked when an outgoing sms is sent to an emergency number.
-         *
-         * This method will be called when an emergency sms is sent on any subscription,
-         * regardless of which subscription this listener was registered on.
-         *
-         * The default implementation of this method calls
-         * {@link #onOutgoingEmergencySms(EmergencyNumber)} for backwards compatibility purposes. Do
-         * not call {@code super(...)} from within your implementation unless you want
-         * {@link #onOutgoingEmergencySms(EmergencyNumber)} to be called as well.
-         *
-         * @param sentEmergencyNumber The {@link EmergencyNumber} the emergency sms was sent to.
-         * @param subscriptionId The subscription ID used to send the emergency sms.
-         */
-        @RequiresPermission(Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION)
-        public void onOutgoingEmergencySms(@NonNull EmergencyNumber sentEmergencyNumber,
-                                    int subscriptionId);
-    }
-
-    /**
-     * Interface for phone capability listener.
-     * @hide
-     */
-    @SystemApi
-    public interface PhoneCapabilityChangedListener {
-        /**
-         * Callback invoked when phone capability changes.
-         * Note, this callback triggers regardless of registered subscription.
-         *
-         * @param capability the new phone capability
-         */
-        @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
-        public void onPhoneCapabilityChanged(@NonNull PhoneCapability capability);
-    }
-
-    /**
-     * Interface for active data subscription ID listener.
-     */
-    public interface ActiveDataSubscriptionIdChangedListener {
-        /**
-         * Callback invoked when active data subscription ID changes.
-         * Note, this callback triggers regardless of registered subscription.
-         *
-         * @param subId current subscription used to setup Cellular Internet data.
-         *              For example, it could be the current active opportunistic subscription
-         *              in use, or the subscription user selected as default data subscription in
-         *              DSDS mode.
-         */
-        @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
-        public void onActiveDataSubscriptionIdChanged(int subId);
-    }
-
-    /**
-     * Interface for modem radio power state listener.
-     *
-     * @hide
-     */
-    @SystemApi
-    public interface RadioPowerStateChangedListener {
-        /**
-         * Callback invoked when modem radio power state changes on the registered subscription.
-         * Note, the registration subscription ID comes from {@link TelephonyManager} object
-         * which registers PhoneStateListener by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         *
-         * @param state the modem radio power state
-         */
-        @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
-        public void onRadioPowerStateChanged(@RadioPowerState int state);
-    }
-
-    /**
-     * Interface for carrier network listener.
-     */
-    public interface CarrierNetworkChangeListener {
-        /**
-         * Callback invoked when telephony has received notice from a carrier
-         * app that a network action that could result in connectivity loss
-         * has been requested by an app using
-         * {@link android.service.carrier.CarrierService#notifyCarrierNetworkChange(boolean)}
-         *
-         * This is optional and is only used to allow the system to provide alternative UI while
-         * telephony is performing an action that may result in intentional, temporary network
-         * lack of connectivity.
-         *
-         * Note, this callback is pinned to the registered subscription and will be invoked when
-         * the notifying carrier app has carrier privilege rule on the registered
-         * subscription. {@link android.telephony.TelephonyManager#hasCarrierPrivileges}
-         *
-         * @param active If the carrier network change is or shortly will be active,
-         *               {@code true} indicate that showing alternative UI, {@code false} otherwise.
-         */
-        public void onCarrierNetworkChange(boolean active);
-    }
-
-    /**
-     * Interface for registration failures listener.
-     */
-    public interface RegistrationFailedListener {
-        /**
-         * Report that Registration or a Location/Routing/Tracking Area update has failed.
-         *
-         * <p>Indicate whenever a registration procedure, including a location, routing, or tracking
-         * area update fails. This includes procedures that do not necessarily result in a change of
-         * the modem's registration status. If the modem's registration status changes, that is
-         * reflected in the onNetworkStateChanged() and subsequent
-         * get{Voice/Data}RegistrationState().
-         *
-         * <p>Because registration failures are ephemeral, this callback is not sticky.
-         * Registrants will not receive the most recent past value when registering.
-         *
-         * @param cellIdentity the CellIdentity, which must include the globally unique identifier
-         *        for the cell (for example, all components of the CGI or ECGI).
-         * @param chosenPlmn a 5 or 6 digit alphanumeric PLMN (MCC|MNC) among those broadcast by the
-         *         cell that was chosen for the failed registration attempt.
-         * @param domain DOMAIN_CS, DOMAIN_PS or both in case of a combined procedure.
-         * @param causeCode the primary failure cause code of the procedure.
-         *        For GSM/UMTS (MM), values are in TS 24.008 Sec 10.5.95
-         *        For GSM/UMTS (GMM), values are in TS 24.008 Sec 10.5.147
-         *        For LTE (EMM), cause codes are TS 24.301 Sec 9.9.3.9
-         *        For NR (5GMM), cause codes are TS 24.501 Sec 9.11.3.2
-         *        Integer.MAX_VALUE if this value is unused.
-         * @param additionalCauseCode the cause code of any secondary/combined procedure
-         *                            if appropriate. For UMTS, if a combined attach succeeds for
-         *                            PS only, then the GMM cause code shall be included as an
-         *                            additionalCauseCode. For LTE (ESM), cause codes are in
-         *                            TS 24.301 9.9.4.4. Integer.MAX_VALUE if this value is unused.
-         */
-        @RequiresPermission(allOf = {
-                Manifest.permission.READ_PRECISE_PHONE_STATE,
-                Manifest.permission.ACCESS_FINE_LOCATION
-        })
-        public void onRegistrationFailed(@NonNull CellIdentity cellIdentity,
-                                         @NonNull String chosenPlmn, @Domain int domain,
-                                         int causeCode, int additionalCauseCode);
-    }
-
-    /**
-     * Interface for the current allowed network type list listener. This list involves values of
-     * allowed network type for each of reasons.
-     *
-     * @hide
-     */
-    @SystemApi
-    public interface AllowedNetworkTypesChangedListener {
-        /**
-         * Callback invoked when the current allowed network type list has changed on the
-         * registered subscription.
-         * Note, the registered subscription is associated with {@link TelephonyManager} object
-         * on which
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}
-         * was called.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * given subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         *
-         * @param allowedNetworkTypesList Map associating all allowed network type reasons
-         * ({@link TelephonyManager#ALLOWED_NETWORK_TYPES_REASON_USER},
-         * {@link TelephonyManager#ALLOWED_NETWORK_TYPES_REASON_POWER},
-         * {@link TelephonyManager#ALLOWED_NETWORK_TYPES_REASON_CARRIER}, and
-         * {@link TelephonyManager#ALLOWED_NETWORK_TYPES_REASON_ENABLE_2G}) with reason's allowed
-         * network type values.
-         * For example:
-         * map{{TelephonyManager#ALLOWED_NETWORK_TYPES_REASON_USER, long type value},
-         *     {TelephonyManager#ALLOWED_NETWORK_TYPES_REASON_POWER, long type value},
-         *     {TelephonyManager#ALLOWED_NETWORK_TYPES_REASON_CARRIER, long type value},
-         *     {TelephonyManager#ALLOWED_NETWORK_TYPES_REASON_ENABLE_2G, long type value}}
-         */
-        @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
-        void onAllowedNetworkTypesChanged(
-                @NonNull Map<Integer, Long> allowedNetworkTypesList);
-    }
-
-    /**
-     * Interface for call attributes listener.
-     *
-     * @hide
-     */
-    @SystemApi
-    public interface CallAttributesChangedListener {
-        /**
-         * Callback invoked when the call attributes changes on the registered subscription.
-         * Note, the registration subscription ID comes from {@link TelephonyManager} object
-         * which registers PhoneStateListener by
-         * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
-         * If this TelephonyManager object was created with
-         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
-         * subscription ID. Otherwise, this callback applies to
-         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
-         *
-         * @param callAttributes the call attributes
-         */
-        @RequiresPermission(Manifest.permission.READ_PRECISE_PHONE_STATE)
-        void onCallAttributesChanged(@NonNull CallAttributes callAttributes);
-    }
-
-    /**
-     * Interface for barring information listener.
-     */
-    public interface BarringInfoChangedListener {
-        /**
-         * Report updated barring information for the current camped/registered cell.
-         *
-         * <p>Barring info is provided for all services applicable to the current camped/registered
-         * cell, for the registered PLMN and current access class/access category.
-         *
-         * @param barringInfo for all services on the current cell.
-         * @see android.telephony.BarringInfo
-         */
-        @RequiresPermission(allOf = {
-                Manifest.permission.READ_PRECISE_PHONE_STATE,
-                Manifest.permission.ACCESS_FINE_LOCATION
-        })
-        public void onBarringInfoChanged(@NonNull BarringInfo barringInfo);
-    }
-
-    /**
-     * Interface for current physical channel configuration listener.
-     * @hide
-     */
-    @SystemApi
-    public interface PhysicalChannelConfigChangedListener {
-        /**
-         * Callback invoked when the current physical channel configuration has changed
-         *
-         * @param configs List of the current {@link PhysicalChannelConfig}s
-         */
-        @RequiresPermission(Manifest.permission.READ_PRECISE_PHONE_STATE)
-        public void onPhysicalChannelConfigChanged(@NonNull List<PhysicalChannelConfig> configs);
-    }
-
-    /**
-     * Interface for data enabled listener.
-     *
-     * @hide
-     */
-    @SystemApi
-    public interface DataEnabledChangedListener {
-        /**
-         * Callback invoked when the data enabled changes.
-         *
-         * @param enabled {@code true} if data is enabled, otherwise disabled.
-         * @param reason Reason for data enabled/disabled.
-         *               See {@link TelephonyManager.DataEnabledReason}.
-         */
-        @RequiresPermission(Manifest.permission.READ_PRECISE_PHONE_STATE)
-        public void onDataEnabledChanged(boolean enabled,
-                                  @DataEnabledReason int reason);
+        mSubId = subId;
+        callback = new IPhoneStateListenerStub(this, e);
     }
 
     /**
@@ -1950,7 +609,9 @@
      * @see ServiceState#STATE_IN_SERVICE
      * @see ServiceState#STATE_OUT_OF_SERVICE
      * @see ServiceState#STATE_POWER_OFF
+     * @deprecated Use {@link TelephonyCallback.ServiceStateListener} instead.
      */
+    @Deprecated
     public void onServiceStateChanged(ServiceState serviceState) {
         // default implementation empty
     }
@@ -1983,7 +644,10 @@
      * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
      * subId. Otherwise, this callback applies to
      * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+     *
+     * @deprecated Use {@link TelephonyCallback.MessageWaitingIndicatorListener} instead.
      */
+    @Deprecated
     public void onMessageWaitingIndicatorChanged(boolean mwi) {
         // default implementation empty
     }
@@ -1996,7 +660,10 @@
      * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
      * subId. Otherwise, this callback applies to
      * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+     *
+     * @deprecated Use {@link TelephonyCallback.CallForwardingIndicatorListener} instead.
      */
+    @Deprecated
     public void onCallForwardingIndicatorChanged(boolean cfi) {
         // default implementation empty
     }
@@ -2009,7 +676,10 @@
      * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
      * subId. Otherwise, this callback applies to
      * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+     *
+     * @deprecated Use {@link TelephonyCallback.CellLocationListener} instead.
      */
+    @Deprecated
     public void onCellLocationChanged(CellLocation location) {
         // default implementation empty
     }
@@ -2036,7 +706,10 @@
      * {@link android.Manifest.permission#READ_CALL_LOG READ_CALL_LOG} permission or carrier
      * privileges (see {@link TelephonyManager#hasCarrierPrivileges}), an empty string will be
      * passed as an argument.
+     *
+     * @deprecated Use {@link TelephonyCallback.CallStateListener} instead.
      */
+    @Deprecated
     public void onCallStateChanged(@CallState int state, String phoneNumber) {
         // default implementation empty
     }
@@ -2054,14 +727,19 @@
      * @see TelephonyManager#DATA_CONNECTING
      * @see TelephonyManager#DATA_CONNECTED
      * @see TelephonyManager#DATA_SUSPENDED
+     * @deprecated Use {@link TelephonyCallback.DataConnectionStateListener} instead.
      */
+    @Deprecated
     public void onDataConnectionStateChanged(int state) {
         // default implementation empty
     }
 
     /**
      * same as above, but with the network type.  Both called.
+     *
+     * @deprecated Use {@link TelephonyCallback.DataConnectionStateListener} instead.
      */
+    @Deprecated
     public void onDataConnectionStateChanged(int state, int networkType) {
         // default implementation empty
     }
@@ -2080,7 +758,9 @@
      * @see TelephonyManager#DATA_ACTIVITY_OUT
      * @see TelephonyManager#DATA_ACTIVITY_INOUT
      * @see TelephonyManager#DATA_ACTIVITY_DORMANT
+     * @deprecated Use {@link TelephonyCallback.DataActivityListener} instead.
      */
+    @Deprecated
     public void onDataActivity(int direction) {
         // default implementation empty
     }
@@ -2093,7 +773,10 @@
      * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
      * subId. Otherwise, this callback applies to
      * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+     *
+     * @deprecated Use {@link TelephonyCallback.SignalStrengthsListener} instead.
      */
+    @Deprecated
     public void onSignalStrengthsChanged(SignalStrength signalStrength) {
         // default implementation empty
     }
@@ -2109,7 +792,9 @@
      * {@link SubscriptionManager#getDefaultSubscriptionId()}.
      *
      * @param cellInfo is the list of currently visible cells.
+     * @deprecated Use {@link TelephonyCallback.CellInfoListener} instead.
      */
+    @Deprecated
     public void onCellInfoChanged(List<CellInfo> cellInfo) {
         // default implementation empty
     }
@@ -2122,11 +807,14 @@
      * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
      * subId. Otherwise, this callback applies to
      * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+     *
      * @param callState {@link PreciseCallState}
      * @hide
+     * @deprecated Use {@link TelephonyCallback.PreciseCallStateListener} instead.
      */
     @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
     @SystemApi
+    @Deprecated
     public void onPreciseCallStateChanged(@NonNull PreciseCallState callState) {
         // default implementation empty
     }
@@ -2142,9 +830,10 @@
      *
      * @param disconnectCause {@link DisconnectCause}.
      * @param preciseDisconnectCause {@link PreciseDisconnectCause}.
-     *
+     * @deprecated Use {@link TelephonyCallback.CallDisconnectCauseListener} instead.
      */
     @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
+    @Deprecated
     public void onCallDisconnectCauseChanged(@DisconnectCauses int disconnectCause,
             @PreciseDisconnectCauses int preciseDisconnectCause) {
         // default implementation empty
@@ -2160,9 +849,10 @@
      * {@link SubscriptionManager#getDefaultSubscriptionId()}.
      *
      * @param imsReasonInfo {@link ImsReasonInfo} contains details on why IMS call failed.
-     *
+     * @deprecated Use {@link TelephonyCallback.ImsCallDisconnectCauseListener} instead.
      */
     @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
+    @Deprecated
     public void onImsCallDisconnectCauseChanged(@NonNull ImsReasonInfo imsReasonInfo) {
         // default implementation empty
     }
@@ -2183,8 +873,10 @@
      * (see {@link TelephonyManager#hasCarrierPrivileges}).
      *
      * @param dataConnectionState {@link PreciseDataConnectionState}
+     * @deprecated Use {@link TelephonyCallback.PreciseDataConnectionStateListener} instead.
      */
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+    @Deprecated
     public void onPreciseDataConnectionStateChanged(
             @NonNull PreciseDataConnectionState dataConnectionState) {
         // default implementation empty
@@ -2200,8 +892,10 @@
      * {@link SubscriptionManager#getDefaultSubscriptionId()}.
      *
      * @hide
+     * @deprecated Use {@link TelephonyManager#requestModemActivityInfo}
      */
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
+    @Deprecated
     public void onDataConnectionRealTimeInfoChanged(
             DataConnectionRealTimeInfo dcRtInfo) {
         // default implementation empty
@@ -2219,11 +913,12 @@
      * {@link SubscriptionManager#getDefaultSubscriptionId()}.
      *
      * @hide
+     * @deprecated Use {@link TelephonyCallback.SrvccStateListener} instead.
      */
     @SystemApi
+    @Deprecated
     public void onSrvccStateChanged(@SrvccState int srvccState) {
         // default implementation empty
-
     }
 
     /**
@@ -2238,8 +933,10 @@
      *
      * @param state is the current SIM voice activation state
      * @hide
+     * @deprecated Use {@link TelephonyCallback.VoiceActivationStateListener} instead.
      */
     @SystemApi
+    @Deprecated
     public void onVoiceActivationStateChanged(@SimActivationState int state) {
         // default implementation empty
     }
@@ -2256,7 +953,9 @@
      *
      * @param state is the current SIM data activation state
      * @hide
+     * @deprecated Use {@link TelephonyCallback.DataActivationStateListener} instead.
      */
+    @Deprecated
     public void onDataActivationStateChanged(@SimActivationState int state) {
         // default implementation empty
     }
@@ -2271,7 +970,9 @@
      * {@link SubscriptionManager#getDefaultSubscriptionId()}.
      *
      * @param enabled indicates whether the current user mobile data state is enabled or disabled.
+     * @deprecated Use {@link TelephonyCallback.UserMobileDataStateListener} instead.
      */
+    @Deprecated
     public void onUserMobileDataStateChanged(boolean enabled) {
         // default implementation empty
     }
@@ -2285,8 +986,10 @@
      * app has carrier privileges (see {@link TelephonyManager#hasCarrierPrivileges}).
      *
      * @param telephonyDisplayInfo The display information.
+     * @deprecated Use {@link TelephonyCallback.DisplayInfoListener} instead.
      */
     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
+    @Deprecated
     public void onDisplayInfoChanged(@NonNull TelephonyDisplayInfo telephonyDisplayInfo) {
         // default implementation empty
     }
@@ -2309,7 +1012,9 @@
      *                            {@link SubscriptionManager#INVALID_SUBSCRIPTION_ID} as
      *                            the key and a list of emergency numbers as the value. If no
      *                            emergency number information is available, the value will be null.
+     * @deprecated Use {@link TelephonyCallback.EmergencyNumberListListener} instead.
      */
+    @Deprecated
     public void onEmergencyNumberListChanged(
             @NonNull Map<Integer, List<EmergencyNumber>> emergencyNumberList) {
         // default implementation empty
@@ -2322,7 +1027,6 @@
      * the no-SIM case), regardless of which subscription this listener was registered on.
      *
      * @param placedEmergencyNumber The {@link EmergencyNumber} the emergency call was placed to.
-     *
      * @deprecated Use {@link #onOutgoingEmergencyCall(EmergencyNumber, int)}.
      * @hide
      */
@@ -2349,8 +1053,10 @@
      *                       are no SIM cards in the device), this will be equal to
      *                       {@link SubscriptionManager#INVALID_SUBSCRIPTION_ID}.
      * @hide
+     * @deprecated Use {@link TelephonyCallback.OutgoingEmergencyCallListener} instead.
      */
     @SystemApi
+    @Deprecated
     public void onOutgoingEmergencyCall(@NonNull EmergencyNumber placedEmergencyNumber,
             int subscriptionId) {
         // Default implementation for backwards compatibility
@@ -2365,6 +1071,7 @@
      *
      * @deprecated Use {@link #onOutgoingEmergencySms(EmergencyNumber, int)}.
      * @hide
+     * @deprecated Use {@link TelephonyCallback.OutgoingEmergencySmsListener} instead.
      */
     @SystemApi
     @Deprecated
@@ -2386,8 +1093,10 @@
      * @param sentEmergencyNumber The {@link EmergencyNumber} the emergency sms was sent to.
      * @param subscriptionId The subscription ID used to send the emergency sms.
      * @hide
+     * @deprecated Use {@link TelephonyCallback.OutgoingEmergencySmsListener} instead.
      */
     @SystemApi
+    @Deprecated
     public void onOutgoingEmergencySms(@NonNull EmergencyNumber sentEmergencyNumber,
             int subscriptionId) {
         // Default implementation for backwards compatibility
@@ -2397,8 +1106,7 @@
     /**
      * Callback invoked when OEM hook raw event is received on the registered subscription.
      * Note, the registration subId comes from {@link TelephonyManager} object which registers
-     * PhoneStateListener by
-     * {@link TelephonyManager#registerPhoneStateListener(Executor, PhoneStateListener)}.
+     * PhoneStateListener by {@link TelephonyManager#listen(PhoneStateListener, int)}.
      * If this TelephonyManager object was created with
      * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
      * subId. Otherwise, this callback applies to
@@ -2407,8 +1115,10 @@
      * Requires the READ_PRIVILEGED_PHONE_STATE permission.
      * @param rawData is the byte array of the OEM hook raw data.
      * @hide
+     * @deprecated OEM needs a vendor-extension hal and their apps should use that instead
      */
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
+    @Deprecated
     public void onOemHookRawEvent(byte[] rawData) {
         // default implementation empty
     }
@@ -2419,7 +1129,9 @@
      *
      * @param capability the new phone capability
      * @hide
+     * @deprecated Use {@link TelephonyCallback.PhoneCapabilityListener} instead.
      */
+    @Deprecated
     public void onPhoneCapabilityChanged(@NonNull PhoneCapability capability) {
         // default implementation empty
     }
@@ -2432,7 +1144,9 @@
      * @param subId current subscription used to setup Cellular Internet data.
      *              For example, it could be the current active opportunistic subscription in use,
      *              or the subscription user selected as default data subscription in DSDS mode.
+     * @deprecated Use {@link TelephonyCallback.ActiveDataSubscriptionIdListener} instead.
      */
+    @Deprecated
     public void onActiveDataSubscriptionIdChanged(int subId) {
         // default implementation empty
     }
@@ -2449,8 +1163,10 @@
      * Requires the READ_PRECISE_PHONE_STATE permission.
      * @param callAttributes the call attributes
      * @hide
+     * @deprecated Use {@link TelephonyCallback.CallAttributesListener} instead.
      */
     @SystemApi
+    @Deprecated
     public void onCallAttributesChanged(@NonNull CallAttributes callAttributes) {
         // default implementation empty
     }
@@ -2468,8 +1184,10 @@
      *
      * @param state the modem radio power state
      * @hide
+     * @deprecated Use {@link TelephonyCallback.RadioPowerStateListener} instead.
      */
     @SystemApi
+    @Deprecated
     public void onRadioPowerStateChanged(@RadioPowerState int state) {
         // default implementation empty
     }
@@ -2487,9 +1205,10 @@
      * @param active Whether the carrier network change is or shortly
      *               will be active. This value is true to indicate
      *               showing alternative UI and false to stop.
-     *
      * @hide
+     * @deprecated Use {@link TelephonyCallback.CarrierNetworkListener} instead.
      */
+    @Deprecated
     public void onCarrierNetworkChange(boolean active) {
         // default implementation empty
     }
@@ -2520,7 +1239,9 @@
      *        For UMTS, if a combined attach succeeds for PS only, then the GMM cause code shall be
      *        included as an additionalCauseCode. For LTE (ESM), cause codes are in
      *        TS 24.301 9.9.4.4. Integer.MAX_VALUE if this value is unused.
+     * @deprecated Use {@link TelephonyCallback.RegistrationFailedListener} instead.
      */
+    @Deprecated
     public void onRegistrationFailed(@NonNull CellIdentity cellIdentity, @NonNull String chosenPlmn,
             int domain, int causeCode, int additionalCauseCode) {
         // default implementation empty
@@ -2533,9 +1254,10 @@
      * cell, for the registered PLMN and current access class/access category.
      *
      * @param barringInfo for all services on the current cell.
-     *
      * @see android.telephony.BarringInfo
+     * @deprecated Use {@link TelephonyCallback.BarringInfoListener} instead.
      */
+    @Deprecated
     public void onBarringInfoChanged(@NonNull BarringInfo barringInfo) {
         // default implementation empty
     }
@@ -2831,7 +1553,7 @@
 
             Binder.withCleanCallingIdentity(
                     () -> mExecutor.execute(() -> psl.onRegistrationFailed(
-                                cellIdentity, chosenPlmn, domain, causeCode, additionalCauseCode)));
+                            cellIdentity, chosenPlmn, domain, causeCode, additionalCauseCode)));
             // default implementation empty
         }
 
@@ -2844,33 +1566,15 @@
         }
 
         public void onPhysicalChannelConfigChanged(List<PhysicalChannelConfig> configs) {
-            PhysicalChannelConfigChangedListener listener =
-                    (PhysicalChannelConfigChangedListener) mPhoneStateListenerWeakRef.get();
-            if (listener == null) return;
-
-            Binder.withCleanCallingIdentity(
-                    () -> mExecutor.execute(() -> listener.onPhysicalChannelConfigChanged(
-                            configs)));
+            // default implementation empty
         }
 
         public void onDataEnabledChanged(boolean enabled, @DataEnabledReason int reason) {
-            DataEnabledChangedListener listener =
-                    (DataEnabledChangedListener) mPhoneStateListenerWeakRef.get();
-            if (listener == null) return;
-
-            Binder.withCleanCallingIdentity(
-                    () -> mExecutor.execute(() -> listener.onDataEnabledChanged(
-                            enabled, reason)));
+            // default implementation empty
         }
 
         public void onAllowedNetworkTypesChanged(Map allowedNetworkTypesList) {
-            AllowedNetworkTypesChangedListener listener =
-                    (AllowedNetworkTypesChangedListener) mPhoneStateListenerWeakRef.get();
-            if (listener == null) return;
-
-            Binder.withCleanCallingIdentity(
-                    () -> mExecutor.execute(
-                            () -> listener.onAllowedNetworkTypesChanged(allowedNetworkTypesList)));
+            // default implementation empty
         }
     }
 
diff --git a/core/java/android/telephony/TelephonyCallback.java b/core/java/android/telephony/TelephonyCallback.java
new file mode 100644
index 0000000..a2584cae
--- /dev/null
+++ b/core/java/android/telephony/TelephonyCallback.java
@@ -0,0 +1,1710 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.telephony;
+
+import android.Manifest;
+import android.annotation.CallbackExecutor;
+import android.annotation.IntDef;
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.annotation.RequiresPermission;
+import android.annotation.SystemApi;
+import android.compat.annotation.ChangeId;
+import android.compat.annotation.UnsupportedAppUsage;
+import android.os.Binder;
+import android.os.Build;
+import android.telephony.emergency.EmergencyNumber;
+import android.telephony.ims.ImsReasonInfo;
+
+import com.android.internal.annotations.VisibleForTesting;
+import com.android.internal.telephony.IPhoneStateListener;
+
+import dalvik.system.VMRuntime;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.ref.WeakReference;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.Executor;
+
+/**
+ * A callback class for monitoring changes in specific telephony states
+ * on the device, including service state, signal strength, message
+ * waiting indicator (voicemail), and others.
+ * <p>
+ * To register a callback, use a {@link TelephonyCallback} which implements interfaces regarding
+ * EVENT_*. For example,
+ * FakeServiceStateCallback extends {@link TelephonyCallback} implements
+ * {@link TelephonyCallback.ServiceStateListener}.
+ * <p>
+ * Then override the methods for the state that you wish to receive updates for, and
+ * pass the executor and your TelephonyCallback object to
+ * {@link TelephonyManager#registerTelephonyCallback}.
+ * Methods are called when the state changes, as well as once on initial registration.
+ * <p>
+ * Note that access to some telephony information is
+ * permission-protected. Your application won't receive updates for protected
+ * information unless it has the appropriate permissions declared in
+ * its manifest file. Where permissions apply, they are noted in the
+ * appropriate sub-interfaces.
+ */
+public class TelephonyCallback {
+
+    /**
+     * Experiment flag to set the per-pid registration limit for TelephonyCallback
+     *
+     * Limit on registrations of {@link TelephonyCallback}s on a per-pid basis. When this limit is
+     * exceeded, any calls to {@link TelephonyManager#registerTelephonyCallback} will fail with an
+     * {@link IllegalStateException}.
+     *
+     * {@link android.os.Process#PHONE_UID}, {@link android.os.Process#SYSTEM_UID}, and the uid that
+     * TelephonyRegistry runs under are exempt from this limit.
+     *
+     * If the value of the flag is less than 1, enforcement of the limit will be disabled.
+     * @hide
+     */
+    public static final String FLAG_PER_PID_REGISTRATION_LIMIT =
+            "phone_state_listener_per_pid_registration_limit";
+
+    /**
+     * Default value for the per-pid registration limit.
+     * See {@link #FLAG_PER_PID_REGISTRATION_LIMIT}.
+     * @hide
+     */
+    public static final int DEFAULT_PER_PID_REGISTRATION_LIMIT = 50;
+
+    /**
+     * This change enables a limit on the number of {@link TelephonyCallback} objects any process
+     * may register via {@link TelephonyManager#registerTelephonyCallback}. The default limit is 50,
+     * which may change via remote device config updates.
+     *
+     * This limit is enforced via an {@link IllegalStateException} thrown from
+     * {@link TelephonyManager#registerTelephonyCallback} when the offending process attempts to
+     * register one too many callbacks.
+     *
+     * @hide
+     */
+    @ChangeId
+    public static final long PHONE_STATE_LISTENER_LIMIT_CHANGE_ID = 150880553L;
+
+    /**
+     * Event for changes to the network service state (cellular).
+     *
+     * @hide
+     * @see ServiceStateListener#onServiceStateChanged
+     * @see ServiceState
+     */
+    @SystemApi
+    public static final int EVENT_SERVICE_STATE_CHANGED = 1;
+
+    /**
+     * Event for changes to the network signal strength (cellular).
+     *
+     * @hide
+     * @see SignalStrengthsListener#onSignalStrengthsChanged
+     */
+    @SystemApi
+    public static final int EVENT_SIGNAL_STRENGTH_CHANGED = 2;
+
+    /**
+     * Event for changes to the message-waiting indicator.
+     * <p>
+     * Requires Permission: {@link android.Manifest.permission#READ_PHONE_STATE} or that
+     * the calling app has carrier privileges (see
+     * {@link TelephonyManager#hasCarrierPrivileges}).
+     * <p>
+     * Example: The status bar uses this to determine when to display the
+     * voicemail icon.
+     *
+     * @hide
+     * @see MessageWaitingIndicatorListener#onMessageWaitingIndicatorChanged
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
+    public static final int EVENT_MESSAGE_WAITING_INDICATOR_CHANGED = 3;
+
+    /**
+     * Event for changes to the call-forwarding indicator.
+     * <p>
+     * Requires Permission: {@link android.Manifest.permission#READ_PHONE_STATE} or that
+     * the calling app has carrier privileges (see
+     * {@link TelephonyManager#hasCarrierPrivileges}).
+     *
+     * @hide
+     * @see CallForwardingIndicatorListener#onCallForwardingIndicatorChanged
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
+    public static final int EVENT_CALL_FORWARDING_INDICATOR_CHANGED = 4;
+
+    /**
+     * Event for changes to the device's cell location. Note that
+     * this will result in frequent listeners to the listener.
+     * <p>
+     * If you need regular location updates but want more control over
+     * the update interval or location precision, you can set up a callback
+     * through the {@link android.location.LocationManager location manager}
+     * instead.
+     *
+     * @hide
+     * @see CellLocationListener#onCellLocationChanged
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION)
+    public static final int EVENT_CELL_LOCATION_CHANGED = 5;
+
+    /**
+     * Event for changes to the device call state.
+     *
+     * @hide
+     * @see CallStateListener#onCallStateChanged
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.READ_CALL_LOG)
+    public static final int EVENT_CALL_STATE_CHANGED = 6;
+
+    /**
+     * Event for changes to the data connection state (cellular).
+     *
+     * @hide
+     * @see DataConnectionStateListener#onDataConnectionStateChanged
+     */
+    @SystemApi
+    public static final int EVENT_DATA_CONNECTION_STATE_CHANGED = 7;
+
+    /**
+     * Event for changes to the direction of data traffic on the data
+     * connection (cellular).
+     * <p>
+     * Example: The status bar uses this to display the appropriate
+     * data-traffic icon.
+     *
+     * @hide
+     * @see DataActivityListener#onDataActivity
+     */
+    @SystemApi
+    public static final int EVENT_DATA_ACTIVITY_CHANGED = 8;
+
+    /**
+     * Event for changes to the network signal strengths (cellular).
+     * <p>
+     * Example: The status bar uses this to control the signal-strength
+     * icon.
+     *
+     * @hide
+     * @see SignalStrengthsListener#onSignalStrengthsChanged
+     */
+    @SystemApi
+    public static final int EVENT_SIGNAL_STRENGTHS_CHANGED = 9;
+
+    /**
+     * Event for changes of the network signal strengths (cellular) always reported from modem,
+     * even in some situations such as the screen of the device is off.
+     *
+     * @hide
+     * @see AlwaysReportedSignalStrengthListener#onSignalStrengthsChanged
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.LISTEN_ALWAYS_REPORTED_SIGNAL_STRENGTH)
+    public static final int EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED = 10;
+
+    /**
+     * Event for changes to observed cell info.
+     *
+     * @hide
+     * @see CellInfoListener#onCellInfoChanged
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION)
+    public static final int EVENT_CELL_INFO_CHANGED = 11;
+
+    /**
+     * Event for {@link android.telephony.Annotation.PreciseCallStates} of ringing,
+     * background and foreground calls.
+     *
+     * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE}
+     * or the calling app has carrier privileges
+     * (see {@link TelephonyManager#hasCarrierPrivileges}).
+     *
+     * @hide
+     * @see PreciseCallStateListener#onPreciseCallStateChanged
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
+    public static final int EVENT_PRECISE_CALL_STATE_CHANGED = 12;
+
+    /**
+     * Event for {@link PreciseDataConnectionState} on the data connection (cellular).
+     *
+     * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE}
+     * or the calling app has carrier privileges
+     * (see {@link TelephonyManager#hasCarrierPrivileges}).
+     *
+     * @hide
+     * @see PreciseDataConnectionStateListener#onPreciseDataConnectionStateChanged
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
+    public static final int EVENT_PRECISE_DATA_CONNECTION_STATE_CHANGED = 13;
+
+    /**
+     * Event for real time info for all data connections (cellular)).
+     *
+     * @hide
+     * @see PhoneStateListener#onDataConnectionRealTimeInfoChanged(DataConnectionRealTimeInfo)
+     * @deprecated Use {@link TelephonyManager#requestModemActivityInfo}
+     */
+    @Deprecated
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
+    public static final int EVENT_DATA_CONNECTION_REAL_TIME_INFO_CHANGED = 14;
+
+    /**
+     * Event for OEM hook raw event
+     *
+     * @hide
+     * @see PhoneStateListener#onOemHookRawEvent
+     */
+    @SystemApi
+    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    public static final int EVENT_OEM_HOOK_RAW = 15;
+
+    /**
+     * Event for changes to the SRVCC state of the active call.
+     *
+     * @hide
+     * @see SrvccStateListener#onSrvccStateChanged
+     */
+    @SystemApi
+    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    public static final int EVENT_SRVCC_STATE_CHANGED = 16;
+
+    /**
+     * Event for carrier network changes indicated by a carrier app.
+     *
+     * @hide
+     * @see android.service.carrier.CarrierService#notifyCarrierNetworkChange(boolean)
+     * @see CarrierNetworkListener#onCarrierNetworkChange
+     */
+    @SystemApi
+    public static final int EVENT_CARRIER_NETWORK_CHANGED = 17;
+
+    /**
+     * Event for changes to the sim voice activation state
+     *
+     * @hide
+     * @see TelephonyManager#SIM_ACTIVATION_STATE_ACTIVATING
+     * @see TelephonyManager#SIM_ACTIVATION_STATE_ACTIVATED
+     * @see TelephonyManager#SIM_ACTIVATION_STATE_DEACTIVATED
+     * @see TelephonyManager#SIM_ACTIVATION_STATE_RESTRICTED
+     * @see TelephonyManager#SIM_ACTIVATION_STATE_UNKNOWN
+     * <p>
+     * Example: TelephonyManager#SIM_ACTIVATION_STATE_ACTIVATED indicates voice service has been
+     * fully activated
+     * @see VoiceActivationStateListener#onVoiceActivationStateChanged
+     */
+    @SystemApi
+    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    public static final int EVENT_VOICE_ACTIVATION_STATE_CHANGED = 18;
+
+    /**
+     * Event for changes to the sim data activation state
+     *
+     * @hide
+     * @see TelephonyManager#SIM_ACTIVATION_STATE_ACTIVATING
+     * @see TelephonyManager#SIM_ACTIVATION_STATE_ACTIVATED
+     * @see TelephonyManager#SIM_ACTIVATION_STATE_DEACTIVATED
+     * @see TelephonyManager#SIM_ACTIVATION_STATE_RESTRICTED
+     * @see TelephonyManager#SIM_ACTIVATION_STATE_UNKNOWN
+     * <p>
+     * Example: TelephonyManager#SIM_ACTIVATION_STATE_ACTIVATED indicates data service has been
+     * fully activated
+     * @see DataActivationStateListener#onDataActivationStateChanged
+     */
+    @SystemApi
+    public static final int EVENT_DATA_ACTIVATION_STATE_CHANGED = 19;
+
+    /**
+     * Event for changes to the user mobile data state
+     *
+     * @hide
+     * @see UserMobileDataStateListener#onUserMobileDataStateChanged
+     */
+    @SystemApi
+    public static final int EVENT_USER_MOBILE_DATA_STATE_CHANGED = 20;
+
+    /**
+     * Event for display info changed event.
+     *
+     * @hide
+     * @see DisplayInfoListener#onDisplayInfoChanged
+     */
+    @SystemApi
+    public static final int EVENT_DISPLAY_INFO_CHANGED = 21;
+
+    /**
+     * Event for changes to the phone capability.
+     *
+     * @hide
+     * @see PhoneCapabilityListener#onPhoneCapabilityChanged
+     */
+    @SystemApi
+    public static final int EVENT_PHONE_CAPABILITY_CHANGED = 22;
+
+    /**
+     * Event for changes to active data subscription ID. Active data subscription is
+     * the current subscription used to setup Cellular Internet data. For example,
+     * it could be the current active opportunistic subscription in use, or the
+     * subscription user selected as default data subscription in DSDS mode.
+     *
+     * <p>Requires permission {@link android.Manifest.permission#READ_PHONE_STATE} or the calling
+     * app has carrier privileges (see {@link TelephonyManager#hasCarrierPrivileges}).
+     *
+     * @hide
+     * @see ActiveDataSubscriptionIdListener#onActiveDataSubscriptionIdChanged
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
+    public static final int EVENT_ACTIVE_DATA_SUBSCRIPTION_ID_CHANGED = 23;
+
+    /**
+     * Event for changes to the radio power state.
+     *
+     * @hide
+     * @see RadioPowerStateListener#onRadioPowerStateChanged
+     */
+    @SystemApi
+    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    public static final int EVENT_RADIO_POWER_STATE_CHANGED = 24;
+
+    /**
+     * Event for changes to emergency number list based on all active subscriptions.
+     *
+     * <p>Requires permission {@link android.Manifest.permission#READ_PHONE_STATE} or the calling
+     * app has carrier privileges (see {@link TelephonyManager#hasCarrierPrivileges}).
+     *
+     * @hide
+     * @see EmergencyNumberListListener#onEmergencyNumberListChanged
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
+    public static final int EVENT_EMERGENCY_NUMBER_LIST_CHANGED = 25;
+
+    /**
+     * Event for call disconnect causes which contains {@link DisconnectCause} and
+     * {@link PreciseDisconnectCause}.
+     *
+     * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE}
+     * or the calling app has carrier privileges
+     * (see {@link TelephonyManager#hasCarrierPrivileges}).
+     *
+     * @hide
+     * @see CallDisconnectCauseListener#onCallDisconnectCauseChanged
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
+    public static final int EVENT_CALL_DISCONNECT_CAUSE_CHANGED = 26;
+
+    /**
+     * Event for changes to the call attributes of a currently active call.
+     *
+     * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE}
+     * or the calling app has carrier privileges
+     * (see {@link TelephonyManager#hasCarrierPrivileges}).
+     *
+     * @hide
+     * @see CallAttributesListener#onCallAttributesChanged
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
+    public static final int EVENT_CALL_ATTRIBUTES_CHANGED = 27;
+
+    /**
+     * Event for IMS call disconnect causes which contains
+     * {@link android.telephony.ims.ImsReasonInfo}
+     *
+     * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE}
+     * or the calling app has carrier privileges
+     * (see {@link TelephonyManager#hasCarrierPrivileges}).
+     *
+     * @hide
+     * @see ImsCallDisconnectCauseListener#onImsCallDisconnectCauseChanged(ImsReasonInfo)
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
+    public static final int EVENT_IMS_CALL_DISCONNECT_CAUSE_CHANGED = 28;
+
+    /**
+     * Event for the emergency number placed from an outgoing call.
+     *
+     * @hide
+     * @see OutgoingEmergencyCallListener#onOutgoingEmergencyCall
+     */
+    @SystemApi
+    @RequiresPermission(Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION)
+    public static final int EVENT_OUTGOING_EMERGENCY_CALL = 29;
+
+    /**
+     * Event for the emergency number placed from an outgoing SMS.
+     *
+     * @hide
+     * @see OutgoingEmergencySmsListener#onOutgoingEmergencySms
+     */
+    @SystemApi
+    @RequiresPermission(Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION)
+    public static final int EVENT_OUTGOING_EMERGENCY_SMS = 30;
+
+    /**
+     * Event for registration failures.
+     * <p>
+     * Event for indications that a registration procedure has failed in either the CS or PS
+     * domain. This indication does not necessarily indicate a change of service state, which should
+     * be tracked via {@link #EVENT_SERVICE_STATE_CHANGED}.
+     *
+     * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE} or
+     * the calling app has carrier privileges (see {@link TelephonyManager#hasCarrierPrivileges}).
+     *
+     * <p>Also requires the {@link Manifest.permission#ACCESS_FINE_LOCATION} permission, regardless
+     * of whether the calling app has carrier privileges.
+     *
+     * @hide
+     * @see RegistrationFailedListener#onRegistrationFailed
+     */
+    @SystemApi
+    @RequiresPermission(allOf = {
+            Manifest.permission.READ_PRECISE_PHONE_STATE,
+            Manifest.permission.ACCESS_FINE_LOCATION
+    })
+    public static final int EVENT_REGISTRATION_FAILURE = 31;
+
+    /**
+     * Event for Barring Information for the current registered / camped cell.
+     *
+     * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE} or
+     * the calling app has carrier privileges (see {@link TelephonyManager#hasCarrierPrivileges}).
+     *
+     * <p>Also requires the {@link Manifest.permission#ACCESS_FINE_LOCATION} permission, regardless
+     * of whether the calling app has carrier privileges.
+     *
+     * @hide
+     * @see BarringInfoListener#onBarringInfoChanged
+     */
+    @SystemApi
+    @RequiresPermission(allOf = {
+            Manifest.permission.READ_PRECISE_PHONE_STATE,
+            Manifest.permission.ACCESS_FINE_LOCATION
+    })
+    public static final int EVENT_BARRING_INFO_CHANGED = 32;
+
+    /**
+     * Event for changes to the physical channel configuration.
+     *
+     * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE}
+     * or the calling app has carrier privileges
+     * (see {@link TelephonyManager#hasCarrierPrivileges}).
+     *
+     * @hide
+     * @see PhysicalChannelConfigListener#onPhysicalChannelConfigChanged
+     */
+    @SystemApi
+    @RequiresPermission(Manifest.permission.READ_PRECISE_PHONE_STATE)
+    public static final int EVENT_PHYSICAL_CHANNEL_CONFIG_CHANGED = 33;
+
+
+    /**
+     * Event for changes to the data enabled.
+     * <p>
+     * Event for indications that the enabled status of current data has changed.
+     *
+     * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE}
+     * or the calling app has carrier privileges
+     * (see {@link TelephonyManager#hasCarrierPrivileges}).
+     *
+     * @hide
+     * @see DataEnabledListener#onDataEnabledChanged
+     */
+    @SystemApi
+    @RequiresPermission(Manifest.permission.READ_PRECISE_PHONE_STATE)
+    public static final int EVENT_DATA_ENABLED_CHANGED = 34;
+
+    /**
+     * Event for changes to allowed network list based on all active subscriptions.
+     *
+     * <p>Requires permission {@link android.Manifest.permission#READ_PHONE_STATE} or the calling
+     * app has carrier privileges (see {@link TelephonyManager#hasCarrierPrivileges}).
+     *
+     * @hide
+     * @see AllowedNetworkTypesListener#onAllowedNetworkTypesChanged
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    public static final int EVENT_ALLOWED_NETWORK_TYPE_LIST_CHANGED = 35;
+
+    /**
+     * @hide
+     */
+    @IntDef(prefix = {"EVENT_"}, value = {
+            EVENT_SERVICE_STATE_CHANGED,
+            EVENT_SIGNAL_STRENGTH_CHANGED,
+            EVENT_MESSAGE_WAITING_INDICATOR_CHANGED,
+            EVENT_CALL_FORWARDING_INDICATOR_CHANGED,
+            EVENT_CELL_LOCATION_CHANGED,
+            EVENT_CALL_STATE_CHANGED,
+            EVENT_DATA_CONNECTION_STATE_CHANGED,
+            EVENT_DATA_ACTIVITY_CHANGED,
+            EVENT_SIGNAL_STRENGTHS_CHANGED,
+            EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED,
+            EVENT_CELL_INFO_CHANGED,
+            EVENT_PRECISE_CALL_STATE_CHANGED,
+            EVENT_PRECISE_DATA_CONNECTION_STATE_CHANGED,
+            EVENT_DATA_CONNECTION_REAL_TIME_INFO_CHANGED,
+            EVENT_OEM_HOOK_RAW,
+            EVENT_SRVCC_STATE_CHANGED,
+            EVENT_CARRIER_NETWORK_CHANGED,
+            EVENT_VOICE_ACTIVATION_STATE_CHANGED,
+            EVENT_DATA_ACTIVATION_STATE_CHANGED,
+            EVENT_USER_MOBILE_DATA_STATE_CHANGED,
+            EVENT_DISPLAY_INFO_CHANGED,
+            EVENT_PHONE_CAPABILITY_CHANGED,
+            EVENT_ACTIVE_DATA_SUBSCRIPTION_ID_CHANGED,
+            EVENT_RADIO_POWER_STATE_CHANGED,
+            EVENT_EMERGENCY_NUMBER_LIST_CHANGED,
+            EVENT_CALL_DISCONNECT_CAUSE_CHANGED,
+            EVENT_CALL_ATTRIBUTES_CHANGED,
+            EVENT_IMS_CALL_DISCONNECT_CAUSE_CHANGED,
+            EVENT_OUTGOING_EMERGENCY_CALL,
+            EVENT_OUTGOING_EMERGENCY_SMS,
+            EVENT_REGISTRATION_FAILURE,
+            EVENT_BARRING_INFO_CHANGED,
+            EVENT_PHYSICAL_CHANNEL_CONFIG_CHANGED,
+            EVENT_DATA_ENABLED_CHANGED,
+            EVENT_ALLOWED_NETWORK_TYPE_LIST_CHANGED
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface TelephonyEvent {
+    }
+
+    /**
+     * @hide
+     */
+    //TODO: The maxTargetSdk should be S if the build time tool updates it.
+    @VisibleForTesting(visibility = VisibleForTesting.Visibility.PACKAGE)
+    public IPhoneStateListener callback;
+
+    /**
+     * @hide
+     */
+    public void init(@NonNull @CallbackExecutor Executor executor) {
+        if (executor == null) {
+            throw new IllegalArgumentException("TelephonyCallback Executor must be non-null");
+        }
+        callback = new IPhoneStateListenerStub(this, executor);
+    }
+
+    /**
+     * Interface for service state listener.
+     */
+    public interface ServiceStateListener {
+        /**
+         * Callback invoked when device service state changes on the registered subscription.
+         * Note, the registration subscription ID comes from {@link TelephonyManager} object
+         * which registers TelephonyCallback by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         * <p>
+         * The instance of {@link ServiceState} passed as an argument here will have various
+         * levels of location information stripped from it depending on the location permissions
+         * that your app holds.
+         * Only apps holding the {@link Manifest.permission#ACCESS_FINE_LOCATION} permission will
+         * receive all the information in {@link ServiceState}.
+         *
+         * @see ServiceState#STATE_EMERGENCY_ONLY
+         * @see ServiceState#STATE_IN_SERVICE
+         * @see ServiceState#STATE_OUT_OF_SERVICE
+         * @see ServiceState#STATE_POWER_OFF
+         */
+        @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+        public void onServiceStateChanged(@NonNull ServiceState serviceState);
+    }
+
+    /**
+     * Interface for message waiting indicator listener.
+     */
+    public interface MessageWaitingIndicatorListener {
+        /**
+         * Callback invoked when the message-waiting indicator changes on the registered
+         * subscription.
+         * Note, the registration subscription ID comes from {@link TelephonyManager} object by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         */
+        @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
+        public void onMessageWaitingIndicatorChanged(boolean mwi);
+    }
+
+    /**
+     * Interface for call-forwarding indicator listener.
+     */
+    public interface CallForwardingIndicatorListener {
+        /**
+         * Callback invoked when the call-forwarding indicator changes on the registered
+         * subscription.
+         * Note, the registration subscription ID comes from {@link TelephonyManager} object
+         * which registers TelephonyCallback by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         */
+        @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
+        public void onCallForwardingIndicatorChanged(boolean cfi);
+    }
+
+    /**
+     * Interface for device cell location listener.
+     */
+    public interface CellLocationListener {
+        /**
+         * Callback invoked when device cell location changes on the registered subscription.
+         * Note, the registration subscription ID comes from {@link TelephonyManager} object
+         * which registers TelephonyCallback by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         */
+        @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION)
+        public void onCellLocationChanged(@NonNull CellLocation location);
+    }
+
+    /**
+     * Interface for call state listener.
+     */
+    public interface CallStateListener {
+        /**
+         * Callback invoked when device call state changes.
+         * <p>
+         * Reports the state of Telephony (mobile) calls on the device for the registered
+         * subscription.
+         * <p>
+         * Note: the registration subscription ID comes from {@link TelephonyManager} object
+         * which registers TelephonyCallback by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         * <p>
+         * Note: The state returned here may differ from that returned by
+         * {@link TelephonyManager#getCallState()}. Receivers of this callback should be aware that
+         * calling {@link TelephonyManager#getCallState()} from within this callback may return a
+         * different state than the callback reports.
+         *
+         * @param state       call state
+         * @param phoneNumber call phone number. If application does not have
+         *                    {@link android.Manifest.permission#READ_CALL_LOG} permission or
+         *                    carrier
+         *                    privileges (see {@link TelephonyManager#hasCarrierPrivileges}), an
+         *                    empty string will be
+         *                    passed as an argument.
+         */
+        @RequiresPermission(android.Manifest.permission.READ_CALL_LOG)
+        public void onCallStateChanged(@Annotation.CallState int state,
+            @Nullable String phoneNumber);
+    }
+
+    /**
+     * Interface for data connection state listener.
+     */
+    public interface DataConnectionStateListener {
+        /**
+         * Callback invoked when connection state changes on the registered subscription.
+         * Note, the registration subscription ID comes from {@link TelephonyManager} object
+         * which registers TelephonyCallback by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         *
+         * @param state       is the current state of data connection.
+         * @param networkType is the current network type of data connection.
+         * @see TelephonyManager#DATA_DISCONNECTED
+         * @see TelephonyManager#DATA_CONNECTING
+         * @see TelephonyManager#DATA_CONNECTED
+         * @see TelephonyManager#DATA_SUSPENDED
+         */
+        @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+        public void onDataConnectionStateChanged(@TelephonyManager.DataState int state,
+            @Annotation.NetworkType int networkType);
+    }
+
+    /**
+     * Interface for data activity state listener.
+     */
+    public interface DataActivityListener {
+        /**
+         * Callback invoked when data activity state changes on the registered subscription.
+         * Note, the registration subscription ID comes from {@link TelephonyManager} object
+         * which registers TelephonyCallback by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         *
+         * @see TelephonyManager#DATA_ACTIVITY_NONE
+         * @see TelephonyManager#DATA_ACTIVITY_IN
+         * @see TelephonyManager#DATA_ACTIVITY_OUT
+         * @see TelephonyManager#DATA_ACTIVITY_INOUT
+         * @see TelephonyManager#DATA_ACTIVITY_DORMANT
+         */
+        @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+        public void onDataActivity(@Annotation.DataActivityType int direction);
+    }
+
+    /**
+     * Interface for network signal strengths listener.
+     */
+    public interface SignalStrengthsListener {
+        /**
+         * Callback invoked when network signal strengths changes on the registered subscription.
+         * Note, the registration subscription ID comes from {@link TelephonyManager} object
+         * which registers TelephonyCallback by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         */
+        @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+        public void onSignalStrengthsChanged(@NonNull SignalStrength signalStrength);
+    }
+
+    /**
+     * Interface for network signal strengths callback which always reported from modem.
+     */
+    public interface AlwaysReportedSignalStrengthListener {
+        /**
+         * Callback always invoked from modem when network signal strengths changes on the
+         * registered subscription.
+         * Note, the registration subscription ID comes from {@link TelephonyManager} object
+         * which registers TelephonyCallback by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         */
+        @RequiresPermission(android.Manifest.permission.LISTEN_ALWAYS_REPORTED_SIGNAL_STRENGTH)
+        public void onSignalStrengthsChanged(@NonNull SignalStrength signalStrength);
+    }
+
+    /**
+     * Interface for cell info listener.
+     */
+    public interface CellInfoListener {
+        /**
+         * Callback invoked when a observed cell info has changed or new cells have been added
+         * or removed on the registered subscription.
+         * Note, the registration subscription ID s from {@link TelephonyManager} object
+         * which registers TelephonyCallback by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         *
+         * @param cellInfo is the list of currently visible cells.
+         */
+        @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION)
+        public void onCellInfoChanged(@NonNull List<CellInfo> cellInfo);
+    }
+
+    /**
+     * Interface for precise device call state listener.
+     *
+     * @hide
+     */
+    @SystemApi
+    public interface PreciseCallStateListener {
+        /**
+         * Callback invoked when precise device call state changes on the registered subscription.
+         * Note, the registration subscription ID comes from {@link TelephonyManager} object
+         * which registers TelephonyCallback by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         *
+         * @param callState {@link PreciseCallState}
+         */
+        @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
+        public void onPreciseCallStateChanged(@NonNull PreciseCallState callState);
+    }
+
+    /**
+     * Interface for call disconnect cause listener.
+     */
+    public interface CallDisconnectCauseListener {
+        /**
+         * Callback invoked when call disconnect cause changes on the registered subscription.
+         * Note, the registration subscription ID comes from {@link TelephonyManager} object
+         * which registers TelephonyCallback by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         *
+         * @param disconnectCause        {@link DisconnectCause}.
+         * @param preciseDisconnectCause {@link PreciseDisconnectCause}.
+         */
+        @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
+        public void onCallDisconnectCauseChanged(@Annotation.DisconnectCauses int disconnectCause,
+            @Annotation.PreciseDisconnectCauses int preciseDisconnectCause);
+    }
+
+    /**
+     * Interface for IMS call disconnect cause listener.
+     */
+    public interface ImsCallDisconnectCauseListener {
+        /**
+         * Callback invoked when IMS call disconnect cause changes on the registered subscription.
+         * Note, the registration subscription ID comes from {@link TelephonyManager} object
+         * which registers TelephonyCallback by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         *
+         * @param imsReasonInfo {@link ImsReasonInfo} contains details on why IMS call failed.
+         */
+        @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
+        public void onImsCallDisconnectCauseChanged(@NonNull ImsReasonInfo imsReasonInfo);
+    }
+
+    /**
+     * Interface for precise data connection state listener.
+     */
+    public interface PreciseDataConnectionStateListener {
+        /**
+         * Callback providing update about the default/internet data connection on the registered
+         * subscription.
+         * <p>
+         * Note, the registration subscription ID comes from {@link TelephonyManager} object
+         * which registers TelephonyCallback by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         *
+         * <p>Requires permission {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE}
+         * or the calling app has carrier privileges
+         * (see {@link TelephonyManager#hasCarrierPrivileges}).
+         *
+         * @param dataConnectionState {@link PreciseDataConnectionState}
+         */
+        @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
+        public void onPreciseDataConnectionStateChanged(
+            @NonNull PreciseDataConnectionState dataConnectionState);
+    }
+
+    /**
+     * Interface for Single Radio Voice Call Continuity listener.
+     *
+     * @hide
+     */
+    @SystemApi
+    public interface SrvccStateListener {
+        /**
+         * Callback invoked when there has been a change in the Single Radio Voice Call Continuity
+         * (SRVCC) state for the currently active call on the registered subscription.
+         * <p>
+         * Note, the registration subscription ID comes from {@link TelephonyManager} object
+         * which registers TelephonyCallback by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         */
+        @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+        public void onSrvccStateChanged(@Annotation.SrvccState int srvccState);
+    }
+
+    /**
+     * Interface for SIM voice activation state listener.
+     *
+     * @hide
+     */
+    @SystemApi
+    public interface VoiceActivationStateListener {
+        /**
+         * Callback invoked when the SIM voice activation state has changed on the registered
+         * subscription.
+         * Note, the registration subscription ID comes from {@link TelephonyManager} object
+         * which registers TelephonyCallback by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         *
+         * @param state is the current SIM voice activation state
+         */
+        @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+        public void onVoiceActivationStateChanged(@Annotation.SimActivationState int state);
+
+    }
+
+    /**
+     * Interface for SIM data activation state listener.
+     */
+    public interface DataActivationStateListener {
+        /**
+         * Callback invoked when the SIM data activation state has changed on the registered
+         * subscription.
+         * Note, the registration subscription ID comes from {@link TelephonyManager} object
+         * which registers TelephonyCallback by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         *
+         * @param state is the current SIM data activation state
+         */
+        @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+        public void onDataActivationStateChanged(@Annotation.SimActivationState int state);
+    }
+
+    /**
+     * Interface for user mobile data state listener.
+     */
+    public interface UserMobileDataStateListener {
+        /**
+         * Callback invoked when the user mobile data state has changed on the registered
+         * subscription.
+         * Note, the registration subscription ID comes from {@link TelephonyManager} object
+         * which registers TelephonyCallback by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         *
+         * @param enabled indicates whether the current user mobile data state is enabled or
+         *                disabled.
+         */
+        @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+        public void onUserMobileDataStateChanged(boolean enabled);
+    }
+
+    /**
+     * Interface for display info listener.
+     */
+    public interface DisplayInfoListener {
+        /**
+         * Callback invoked when the display info has changed on the registered subscription.
+         * <p> The {@link TelephonyDisplayInfo} contains status information shown to the user
+         * based on carrier policy.
+         *
+         * @param telephonyDisplayInfo The display information.
+         */
+        @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
+        public void onDisplayInfoChanged(@NonNull TelephonyDisplayInfo telephonyDisplayInfo);
+    }
+
+    /**
+     * Interface for the current emergency number list listener.
+     */
+    public interface EmergencyNumberListListener {
+        /**
+         * Callback invoked when the current emergency number list has changed on the registered
+         * subscription.
+         * <p>
+         * Note, the registered subscription is associated with {@link TelephonyManager} object
+         * on which
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}
+         * was called.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * given subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         *
+         * @param emergencyNumberList Map associating all active subscriptions on the device with
+         *                            the list of emergency numbers originating from that
+         *                            subscription.
+         *                            If there are no active subscriptions, the map will contain a
+         *                            single entry with
+         *                            {@link SubscriptionManager#INVALID_SUBSCRIPTION_ID} as
+         *                            the key and a list of emergency numbers as the value. If no
+         *                            emergency number information is available, the value will be
+         *                            empty.
+         */
+        @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
+        public void onEmergencyNumberListChanged(
+            @NonNull Map<Integer, List<EmergencyNumber>> emergencyNumberList);
+    }
+
+    /**
+     * Interface for outgoing emergency call listener.
+     *
+     * @hide
+     */
+    @SystemApi
+    public interface OutgoingEmergencyCallListener {
+        /**
+         * Callback invoked when an outgoing call is placed to an emergency number.
+         * <p>
+         * This method will be called when an emergency call is placed on any subscription
+         * (including the no-SIM case), regardless of which subscription this callback was
+         * registered on.
+         * <p>
+         *
+         * @param placedEmergencyNumber The {@link EmergencyNumber} the emergency call was
+         *                              placed to.
+         * @param subscriptionId        The subscription ID used to place the emergency call. If the
+         *                              emergency call was placed without a valid subscription
+         *                              (e.g. when there are no SIM cards in the device), this
+         *                              will be
+         *                              equal to
+         *                              {@link SubscriptionManager#INVALID_SUBSCRIPTION_ID}.
+         */
+        @RequiresPermission(Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION)
+        public void onOutgoingEmergencyCall(@NonNull EmergencyNumber placedEmergencyNumber,
+            int subscriptionId);
+    }
+
+    /**
+     * Interface for outgoing emergency sms listener.
+     *
+     * @hide
+     */
+    @SystemApi
+    public interface OutgoingEmergencySmsListener {
+        /**
+         * Smsback invoked when an outgoing sms is sent to an emergency number.
+         * <p>
+         * This method will be called when an emergency sms is sent on any subscription,
+         * regardless of which subscription this callback was registered on.
+         *
+         * @param sentEmergencyNumber The {@link EmergencyNumber} the emergency sms was sent to.
+         * @param subscriptionId      The subscription ID used to send the emergency sms.
+         */
+        @RequiresPermission(Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION)
+        public void onOutgoingEmergencySms(@NonNull EmergencyNumber sentEmergencyNumber,
+            int subscriptionId);
+    }
+
+    /**
+     * Interface for phone capability listener.
+     *
+     * @hide
+     */
+    @SystemApi
+    public interface PhoneCapabilityListener {
+        /**
+         * Callback invoked when phone capability changes.
+         * Note, this callback triggers regardless of registered subscription.
+         *
+         * @param capability the new phone capability
+         */
+        @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+        public void onPhoneCapabilityChanged(@NonNull PhoneCapability capability);
+    }
+
+    /**
+     * Interface for active data subscription ID listener.
+     */
+    public interface ActiveDataSubscriptionIdListener {
+        /**
+         * Callback invoked when active data subscription ID changes.
+         * Note, this callback triggers regardless of registered subscription.
+         *
+         * @param subId current subscription used to setup Cellular Internet data.
+         *              For example, it could be the current active opportunistic subscription
+         *              in use, or the subscription user selected as default data subscription in
+         *              DSDS mode.
+         */
+        @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
+        public void onActiveDataSubscriptionIdChanged(int subId);
+    }
+
+    /**
+     * Interface for modem radio power state listener.
+     *
+     * @hide
+     */
+    @SystemApi
+    public interface RadioPowerStateListener {
+        /**
+         * Callback invoked when modem radio power state changes on the registered subscription.
+         * Note, the registration subscription ID comes from {@link TelephonyManager} object
+         * which registers TelephonyCallback by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         *
+         * @param state the modem radio power state
+         */
+        @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+        public void onRadioPowerStateChanged(@Annotation.RadioPowerState int state);
+    }
+
+    /**
+     * Interface for carrier network listener.
+     */
+    public interface CarrierNetworkListener {
+        /**
+         * Callback invoked when telephony has received notice from a carrier
+         * app that a network action that could result in connectivity loss
+         * has been requested by an app using
+         * {@link android.service.carrier.CarrierService#notifyCarrierNetworkChange(boolean)}
+         * <p>
+         * This is optional and is only used to allow the system to provide alternative UI while
+         * telephony is performing an action that may result in intentional, temporary network
+         * lack of connectivity.
+         * <p>
+         * Note, this callback is pinned to the registered subscription and will be invoked when
+         * the notifying carrier app has carrier privilege rule on the registered
+         * subscription. {@link android.telephony.TelephonyManager#hasCarrierPrivileges}
+         *
+         * @param active If the carrier network change is or shortly will be active,
+         *               {@code true} indicate that showing alternative UI, {@code false} otherwise.
+         */
+        public void onCarrierNetworkChange(boolean active);
+    }
+
+    /**
+     * Interface for registration failures listener.
+     */
+    public interface RegistrationFailedListener {
+        /**
+         * Report that Registration or a Location/Routing/Tracking Area update has failed.
+         *
+         * <p>Indicate whenever a registration procedure, including a location, routing, or tracking
+         * area update fails. This includes procedures that do not necessarily result in a change of
+         * the modem's registration status. If the modem's registration status changes, that is
+         * reflected in the onNetworkStateChanged() and subsequent
+         * get{Voice/Data}RegistrationState().
+         *
+         * <p>Because registration failures are ephemeral, this callback is not sticky.
+         * Registrants will not receive the most recent past value when registering.
+         *
+         * @param cellIdentity        the CellIdentity, which must include the globally unique
+         *                            identifier
+         *                            for the cell (for example, all components of the CGI or ECGI).
+         * @param chosenPlmn          a 5 or 6 digit alphanumeric PLMN (MCC|MNC) among those
+         *                            broadcast by the
+         *                            cell that was chosen for the failed registration attempt.
+         * @param domain              DOMAIN_CS, DOMAIN_PS or both in case of a combined procedure.
+         * @param causeCode           the primary failure cause code of the procedure.
+         *                            For GSM/UMTS (MM), values are in TS 24.008 Sec 10.5.95
+         *                            For GSM/UMTS (GMM), values are in TS 24.008 Sec 10.5.147
+         *                            For LTE (EMM), cause codes are TS 24.301 Sec 9.9.3.9
+         *                            For NR (5GMM), cause codes are TS 24.501 Sec 9.11.3.2
+         *                            Integer.MAX_VALUE if this value is unused.
+         * @param additionalCauseCode the cause code of any secondary/combined procedure
+         *                            if appropriate. For UMTS, if a combined attach succeeds for
+         *                            PS only, then the GMM cause code shall be included as an
+         *                            additionalCauseCode. For LTE (ESM), cause codes are in
+         *                            TS 24.301 9.9.4.4. Integer.MAX_VALUE if this value is unused.
+         */
+        @RequiresPermission(allOf = {
+                Manifest.permission.READ_PRECISE_PHONE_STATE,
+                Manifest.permission.ACCESS_FINE_LOCATION
+        })
+        public void onRegistrationFailed(@NonNull CellIdentity cellIdentity,
+            @NonNull String chosenPlmn, @NetworkRegistrationInfo.Domain int domain, int causeCode,
+            int additionalCauseCode);
+    }
+
+    /**
+     * Interface for the current allowed network type list listener. This list involves values of
+     * allowed network type for each of reasons.
+     *
+     * @hide
+     */
+    @SystemApi
+    public interface AllowedNetworkTypesListener {
+        /**
+         * Callback invoked when the current allowed network type list has changed on the
+         * registered subscription.
+         * Note, the registered subscription is associated with {@link TelephonyManager} object
+         * on which
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}
+         * was called.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * given subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         *
+         * @param allowedNetworkTypesList Map associating all allowed network type reasons
+         * ({@link TelephonyManager#ALLOWED_NETWORK_TYPES_REASON_USER},
+         * {@link TelephonyManager#ALLOWED_NETWORK_TYPES_REASON_POWER},
+         * {@link TelephonyManager#ALLOWED_NETWORK_TYPES_REASON_CARRIER}, and
+         * {@link TelephonyManager#ALLOWED_NETWORK_TYPES_REASON_ENABLE_2G}) with reason's allowed
+         * network type values.
+         * For example:
+         * map{{TelephonyManager#ALLOWED_NETWORK_TYPES_REASON_USER, long type value},
+         *     {TelephonyManager#ALLOWED_NETWORK_TYPES_REASON_POWER, long type value},
+         *     {TelephonyManager#ALLOWED_NETWORK_TYPES_REASON_CARRIER, long type value},
+         *     {TelephonyManager#ALLOWED_NETWORK_TYPES_REASON_ENABLE_2G, long type value}}
+         */
+        @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+        void onAllowedNetworkTypesChanged(@NonNull Map<Integer, Long> allowedNetworkTypesList);
+    }
+
+    /**
+     * Interface for call attributes listener.
+     *
+     * @hide
+     */
+    @SystemApi
+    public interface CallAttributesListener {
+        /**
+         * Callback invoked when the call attributes changes on the registered subscription.
+         * Note, the registration subscription ID comes from {@link TelephonyManager} object
+         * which registers TelephonyCallback by
+         * {@link TelephonyManager#registerTelephonyCallback(Executor, TelephonyCallback)}.
+         * If this TelephonyManager object was created with
+         * {@link TelephonyManager#createForSubscriptionId(int)}, then the callback applies to the
+         * subscription ID. Otherwise, this callback applies to
+         * {@link SubscriptionManager#getDefaultSubscriptionId()}.
+         *
+         * @param callAttributes the call attributes
+         */
+        @RequiresPermission(Manifest.permission.READ_PRECISE_PHONE_STATE)
+        void onCallAttributesChanged(@NonNull CallAttributes callAttributes);
+    }
+
+    /**
+     * Interface for barring information listener.
+     */
+    public interface BarringInfoListener {
+        /**
+         * Report updated barring information for the current camped/registered cell.
+         *
+         * <p>Barring info is provided for all services applicable to the current camped/registered
+         * cell, for the registered PLMN and current access class/access category.
+         *
+         * @param barringInfo for all services on the current cell.
+         * @see android.telephony.BarringInfo
+         */
+        @RequiresPermission(allOf = {
+                Manifest.permission.READ_PRECISE_PHONE_STATE,
+                Manifest.permission.ACCESS_FINE_LOCATION
+        })
+        public void onBarringInfoChanged(@NonNull BarringInfo barringInfo);
+    }
+
+    /**
+     * Interface for current physical channel configuration listener.
+     *
+     * @hide
+     */
+    @SystemApi
+    public interface PhysicalChannelConfigListener {
+        /**
+         * Callback invoked when the current physical channel configuration has changed
+         *
+         * @param configs List of the current {@link PhysicalChannelConfig}s
+         */
+        @RequiresPermission(Manifest.permission.READ_PRECISE_PHONE_STATE)
+        public void onPhysicalChannelConfigChanged(@NonNull List<PhysicalChannelConfig> configs);
+    }
+
+    /**
+     * Interface for data enabled listener.
+     *
+     * @hide
+     */
+    @SystemApi
+    public interface DataEnabledListener {
+        /**
+         * Callback invoked when the data enabled changes.
+         *
+         * @param enabled {@code true} if data is enabled, otherwise disabled.
+         * @param reason  Reason for data enabled/disabled.
+         *                See {@link TelephonyManager.DataEnabledReason}.
+         */
+        @RequiresPermission(Manifest.permission.READ_PRECISE_PHONE_STATE)
+        public void onDataEnabledChanged(boolean enabled,
+            @TelephonyManager.DataEnabledReason int reason);
+    }
+
+
+    /**
+     * The callback methods need to be called on the handler thread where
+     * this object was created.  If the binder did that for us it'd be nice.
+     * <p>
+     * Using a static class and weak reference here to avoid memory leak caused by the
+     * IPhoneState.Stub callback retaining references to the outside TelephonyCallback:
+     * even caller has been destroyed and "un-registered" the TelephonyCallback, it is still not
+     * eligible for GC given the references coming from:
+     * Native Stack --> TelephonyCallback --> Context (Activity).
+     * memory of caller's context will be collected after GC from service side get triggered
+     */
+    private static class IPhoneStateListenerStub extends IPhoneStateListener.Stub {
+        private WeakReference<TelephonyCallback> mTelephonyCallbackWeakRef;
+        private Executor mExecutor;
+
+        IPhoneStateListenerStub(TelephonyCallback telephonyCallback, Executor executor) {
+            mTelephonyCallbackWeakRef = new WeakReference<TelephonyCallback>(telephonyCallback);
+            mExecutor = executor;
+        }
+
+        public void onServiceStateChanged(ServiceState serviceState) {
+            ServiceStateListener listener = (ServiceStateListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onServiceStateChanged(serviceState)));
+        }
+
+        public void onSignalStrengthChanged(int asu) {
+            // default implementation empty
+        }
+
+        public void onMessageWaitingIndicatorChanged(boolean mwi) {
+            MessageWaitingIndicatorListener listener =
+                    (MessageWaitingIndicatorListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onMessageWaitingIndicatorChanged(mwi)));
+        }
+
+        public void onCallForwardingIndicatorChanged(boolean cfi) {
+            CallForwardingIndicatorListener listener =
+                    (CallForwardingIndicatorListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onCallForwardingIndicatorChanged(cfi)));
+        }
+
+        public void onCellLocationChanged(CellIdentity cellIdentity) {
+            // There is no system/public API to create an CellIdentity in system server,
+            // so the server pass a null to indicate an empty initial location.
+            CellLocation location =
+                    cellIdentity == null ? CellLocation.getEmpty() : cellIdentity.asCellLocation();
+            CellLocationListener listener = (CellLocationListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onCellLocationChanged(location)));
+        }
+
+        public void onCallStateChanged(int state, String incomingNumber) {
+            CallStateListener listener = (CallStateListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onCallStateChanged(state,
+                            incomingNumber)));
+        }
+
+        public void onDataConnectionStateChanged(int state, int networkType) {
+            DataConnectionStateListener listener =
+                    (DataConnectionStateListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            if (state == TelephonyManager.DATA_DISCONNECTING
+                    && VMRuntime.getRuntime().getTargetSdkVersion() < Build.VERSION_CODES.R) {
+                Binder.withCleanCallingIdentity(
+                        () -> mExecutor.execute(() ->
+                                listener.onDataConnectionStateChanged(
+                                        TelephonyManager.DATA_CONNECTED, networkType)));
+            } else {
+                Binder.withCleanCallingIdentity(
+                        () -> mExecutor.execute(() ->
+                                listener.onDataConnectionStateChanged(state, networkType)));
+            }
+        }
+
+        public void onDataActivity(int direction) {
+            DataActivityListener listener = (DataActivityListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onDataActivity(direction)));
+        }
+
+        public void onSignalStrengthsChanged(SignalStrength signalStrength) {
+            SignalStrengthsListener listener =
+                    (SignalStrengthsListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onSignalStrengthsChanged(
+                            signalStrength)));
+        }
+
+        public void onCellInfoChanged(List<CellInfo> cellInfo) {
+            CellInfoListener listener = (CellInfoListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onCellInfoChanged(cellInfo)));
+        }
+
+        public void onPreciseCallStateChanged(PreciseCallState callState) {
+            PreciseCallStateListener listener =
+                    (PreciseCallStateListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onPreciseCallStateChanged(callState)));
+        }
+
+        public void onCallDisconnectCauseChanged(int disconnectCause, int preciseDisconnectCause) {
+            CallDisconnectCauseListener listener =
+                    (CallDisconnectCauseListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onCallDisconnectCauseChanged(
+                            disconnectCause, preciseDisconnectCause)));
+        }
+
+        public void onPreciseDataConnectionStateChanged(
+                PreciseDataConnectionState dataConnectionState) {
+            PreciseDataConnectionStateListener listener =
+                    (PreciseDataConnectionStateListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(
+                            () -> listener.onPreciseDataConnectionStateChanged(
+                                    dataConnectionState)));
+        }
+
+        public void onDataConnectionRealTimeInfoChanged(DataConnectionRealTimeInfo dcRtInfo) {
+            // default implementation empty
+        }
+
+        public void onSrvccStateChanged(int state) {
+            SrvccStateListener listener = (SrvccStateListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onSrvccStateChanged(state)));
+        }
+
+        public void onVoiceActivationStateChanged(int activationState) {
+            VoiceActivationStateListener listener =
+                    (VoiceActivationStateListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(
+                            () -> listener.onVoiceActivationStateChanged(activationState)));
+        }
+
+        public void onDataActivationStateChanged(int activationState) {
+            DataActivationStateListener listener =
+                    (DataActivationStateListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(
+                            () -> listener.onDataActivationStateChanged(activationState)));
+        }
+
+        public void onUserMobileDataStateChanged(boolean enabled) {
+            UserMobileDataStateListener listener =
+                    (UserMobileDataStateListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(
+                            () -> listener.onUserMobileDataStateChanged(enabled)));
+        }
+
+        public void onDisplayInfoChanged(TelephonyDisplayInfo telephonyDisplayInfo) {
+            DisplayInfoListener listener = (DisplayInfoListener)mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(
+                            () -> listener.onDisplayInfoChanged(telephonyDisplayInfo)));
+        }
+
+        public void onOemHookRawEvent(byte[] rawData) {
+            // default implementation empty
+        }
+
+        public void onCarrierNetworkChange(boolean active) {
+            CarrierNetworkListener listener =
+                    (CarrierNetworkListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onCarrierNetworkChange(active)));
+        }
+
+        public void onEmergencyNumberListChanged(Map emergencyNumberList) {
+            EmergencyNumberListListener listener =
+                    (EmergencyNumberListListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(
+                            () -> listener.onEmergencyNumberListChanged(emergencyNumberList)));
+        }
+
+        public void onOutgoingEmergencyCall(@NonNull EmergencyNumber placedEmergencyNumber,
+            int subscriptionId) {
+            OutgoingEmergencyCallListener listener =
+                    (OutgoingEmergencyCallListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(
+                            () -> listener.onOutgoingEmergencyCall(placedEmergencyNumber,
+                                    subscriptionId)));
+        }
+
+        public void onOutgoingEmergencySms(@NonNull EmergencyNumber sentEmergencyNumber,
+            int subscriptionId) {
+            OutgoingEmergencySmsListener listener =
+                    (OutgoingEmergencySmsListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(
+                            () -> listener.onOutgoingEmergencySms(sentEmergencyNumber,
+                                    subscriptionId)));
+        }
+
+        public void onPhoneCapabilityChanged(PhoneCapability capability) {
+            PhoneCapabilityListener listener =
+                    (PhoneCapabilityListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onPhoneCapabilityChanged(capability)));
+        }
+
+        public void onRadioPowerStateChanged(@Annotation.RadioPowerState int state) {
+            RadioPowerStateListener listener =
+                    (RadioPowerStateListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onRadioPowerStateChanged(state)));
+        }
+
+        public void onCallAttributesChanged(CallAttributes callAttributes) {
+            CallAttributesListener listener =
+                    (CallAttributesListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onCallAttributesChanged(
+                            callAttributes)));
+        }
+
+        public void onActiveDataSubIdChanged(int subId) {
+            ActiveDataSubscriptionIdListener listener =
+                    (ActiveDataSubscriptionIdListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onActiveDataSubscriptionIdChanged(
+                            subId)));
+        }
+
+        public void onImsCallDisconnectCauseChanged(ImsReasonInfo disconnectCause) {
+            ImsCallDisconnectCauseListener listener =
+                    (ImsCallDisconnectCauseListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(
+                            () -> listener.onImsCallDisconnectCauseChanged(disconnectCause)));
+        }
+
+        public void onRegistrationFailed(@NonNull CellIdentity cellIdentity,
+            @NonNull String chosenPlmn, int domain, int causeCode, int additionalCauseCode) {
+            RegistrationFailedListener listener =
+                    (RegistrationFailedListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onRegistrationFailed(
+                            cellIdentity, chosenPlmn, domain, causeCode, additionalCauseCode)));
+            // default implementation empty
+        }
+
+        public void onBarringInfoChanged(BarringInfo barringInfo) {
+            BarringInfoListener listener = (BarringInfoListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onBarringInfoChanged(barringInfo)));
+        }
+
+        public void onPhysicalChannelConfigChanged(List<PhysicalChannelConfig> configs) {
+            PhysicalChannelConfigListener listener =
+                    (PhysicalChannelConfigListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onPhysicalChannelConfigChanged(
+                            configs)));
+        }
+
+        public void onDataEnabledChanged(boolean enabled,
+            @TelephonyManager.DataEnabledReason int reason) {
+            DataEnabledListener listener =
+                    (DataEnabledListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(() -> listener.onDataEnabledChanged(
+                            enabled, reason)));
+        }
+
+        public void onAllowedNetworkTypesChanged(Map allowedNetworkTypesList) {
+            AllowedNetworkTypesListener listener =
+                    (AllowedNetworkTypesListener) mTelephonyCallbackWeakRef.get();
+            if (listener == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(
+                            () -> listener.onAllowedNetworkTypesChanged(allowedNetworkTypesList)));
+        }
+    }
+}
diff --git a/core/java/android/telephony/TelephonyRegistryManager.java b/core/java/android/telephony/TelephonyRegistryManager.java
index 3c355d4..459c6e9 100644
--- a/core/java/android/telephony/TelephonyRegistryManager.java
+++ b/core/java/android/telephony/TelephonyRegistryManager.java
@@ -209,7 +209,7 @@
     }
 
     /**
-     * To check the SDK version for {@link #listenWithEventList}.
+     * To check the SDK version for {@link #listenFromListener}.
      */
     @ChangeId
     @EnabledAfter(targetSdkVersion = Build.VERSION_CODES.P)
@@ -221,24 +221,49 @@
      * @param pkg Package name
      * @param featureId Feature ID
      * @param listener Listener providing callback
-     * @param events List events
+     * @param events Events
      * @param notifyNow Whether to notify instantly
      */
-    public void listenWithEventList(int subId, @NonNull String pkg, @NonNull String featureId,
-            @NonNull PhoneStateListener listener, @NonNull int[] events, boolean notifyNow) {
+    public void listenFromListener(int subId, @NonNull String pkg, @NonNull String featureId,
+            @NonNull PhoneStateListener listener, @NonNull int events, boolean notifyNow) {
+        if (listener == null) {
+            throw new IllegalStateException("telephony service is null.");
+        }
+
         try {
+            int[] eventsList = getEventsFromBitmask(events).stream().mapToInt(i -> i).toArray();
             // subId from PhoneStateListener is deprecated Q on forward, use the subId from
             // TelephonyManager instance. Keep using subId from PhoneStateListener for pre-Q.
             if (Compatibility.isChangeEnabled(LISTEN_CODE_CHANGE)) {
                 // Since mSubId in PhoneStateListener is deprecated from Q on forward, this is
                 // the only place to set mSubId and its for "informational" only.
-                listener.mSubId = (events.length == 0)
+                listener.mSubId = (eventsList.length == 0)
                         ? SubscriptionManager.INVALID_SUBSCRIPTION_ID : subId;
             } else if (listener.mSubId != null) {
                 subId = listener.mSubId;
             }
             sRegistry.listenWithEventList(
-                    subId, pkg, featureId, listener.callback, events, notifyNow);
+                    subId, pkg, featureId, listener.callback, eventsList, notifyNow);
+        } catch (RemoteException e) {
+            throw e.rethrowFromSystemServer();
+        }
+    }
+
+    /**
+     * Listen for incoming subscriptions
+     * @param subId Subscription ID
+     * @param pkg Package name
+     * @param featureId Feature ID
+     * @param telephonyCallback Listener providing callback
+     * @param events List events
+     * @param notifyNow Whether to notify instantly
+     */
+    private void listenFromCallback(int subId, @NonNull String pkg, @NonNull String featureId,
+            @NonNull TelephonyCallback telephonyCallback, @NonNull int[] events,
+            boolean notifyNow) {
+        try {
+            sRegistry.listenWithEventList(
+                    subId, pkg, featureId, telephonyCallback.callback, events, notifyNow);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
@@ -815,136 +840,137 @@
         }
     }
 
-    public @NonNull Set<Integer> getEventsFromListener(@NonNull PhoneStateListener listener) {
+    public @NonNull Set<Integer> getEventsFromCallback(
+            @NonNull TelephonyCallback telephonyCallback) {
 
         Set<Integer> eventList = new ArraySet<>();
 
-        if (listener instanceof PhoneStateListener.ServiceStateChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_SERVICE_STATE_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.ServiceStateListener) {
+            eventList.add(TelephonyCallback.EVENT_SERVICE_STATE_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.MessageWaitingIndicatorChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_MESSAGE_WAITING_INDICATOR_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.MessageWaitingIndicatorListener) {
+            eventList.add(TelephonyCallback.EVENT_MESSAGE_WAITING_INDICATOR_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.CallForwardingIndicatorChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_CALL_FORWARDING_INDICATOR_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.CallForwardingIndicatorListener) {
+            eventList.add(TelephonyCallback.EVENT_CALL_FORWARDING_INDICATOR_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.CellLocationChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_CELL_LOCATION_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.CellLocationListener) {
+            eventList.add(TelephonyCallback.EVENT_CELL_LOCATION_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.CallStateChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_CALL_STATE_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.CallStateListener) {
+            eventList.add(TelephonyCallback.EVENT_CALL_STATE_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.DataConnectionStateChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_DATA_CONNECTION_STATE_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.DataConnectionStateListener) {
+            eventList.add(TelephonyCallback.EVENT_DATA_CONNECTION_STATE_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.DataActivityListener) {
-            eventList.add(PhoneStateListener.EVENT_DATA_ACTIVITY_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.DataActivityListener) {
+            eventList.add(TelephonyCallback.EVENT_DATA_ACTIVITY_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.SignalStrengthsChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_SIGNAL_STRENGTHS_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.SignalStrengthsListener) {
+            eventList.add(TelephonyCallback.EVENT_SIGNAL_STRENGTHS_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.AlwaysReportedSignalStrengthChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.AlwaysReportedSignalStrengthListener) {
+            eventList.add(TelephonyCallback.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.CellInfoChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_CELL_INFO_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.CellInfoListener) {
+            eventList.add(TelephonyCallback.EVENT_CELL_INFO_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.PreciseCallStateChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_PRECISE_CALL_STATE_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.PreciseCallStateListener) {
+            eventList.add(TelephonyCallback.EVENT_PRECISE_CALL_STATE_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.CallDisconnectCauseChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_CALL_DISCONNECT_CAUSE_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.CallDisconnectCauseListener) {
+            eventList.add(TelephonyCallback.EVENT_CALL_DISCONNECT_CAUSE_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.ImsCallDisconnectCauseChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_IMS_CALL_DISCONNECT_CAUSE_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.ImsCallDisconnectCauseListener) {
+            eventList.add(TelephonyCallback.EVENT_IMS_CALL_DISCONNECT_CAUSE_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.PreciseDataConnectionStateChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_PRECISE_DATA_CONNECTION_STATE_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.PreciseDataConnectionStateListener) {
+            eventList.add(TelephonyCallback.EVENT_PRECISE_DATA_CONNECTION_STATE_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.SrvccStateChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_SRVCC_STATE_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.SrvccStateListener) {
+            eventList.add(TelephonyCallback.EVENT_SRVCC_STATE_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.VoiceActivationStateChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_VOICE_ACTIVATION_STATE_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.VoiceActivationStateListener) {
+            eventList.add(TelephonyCallback.EVENT_VOICE_ACTIVATION_STATE_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.DataActivationStateChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_DATA_ACTIVATION_STATE_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.DataActivationStateListener) {
+            eventList.add(TelephonyCallback.EVENT_DATA_ACTIVATION_STATE_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.UserMobileDataStateChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_USER_MOBILE_DATA_STATE_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.UserMobileDataStateListener) {
+            eventList.add(TelephonyCallback.EVENT_USER_MOBILE_DATA_STATE_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.DisplayInfoChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_DISPLAY_INFO_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.DisplayInfoListener) {
+            eventList.add(TelephonyCallback.EVENT_DISPLAY_INFO_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.EmergencyNumberListChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_EMERGENCY_NUMBER_LIST_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.EmergencyNumberListListener) {
+            eventList.add(TelephonyCallback.EVENT_EMERGENCY_NUMBER_LIST_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.OutgoingEmergencyCallListener) {
-            eventList.add(PhoneStateListener.EVENT_OUTGOING_EMERGENCY_CALL);
+        if (telephonyCallback instanceof TelephonyCallback.OutgoingEmergencyCallListener) {
+            eventList.add(TelephonyCallback.EVENT_OUTGOING_EMERGENCY_CALL);
         }
 
-        if (listener instanceof PhoneStateListener.OutgoingEmergencySmsListener) {
-            eventList.add(PhoneStateListener.EVENT_OUTGOING_EMERGENCY_SMS);
+        if (telephonyCallback instanceof TelephonyCallback.OutgoingEmergencySmsListener) {
+            eventList.add(TelephonyCallback.EVENT_OUTGOING_EMERGENCY_SMS);
         }
 
-        if (listener instanceof PhoneStateListener.PhoneCapabilityChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_PHONE_CAPABILITY_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.PhoneCapabilityListener) {
+            eventList.add(TelephonyCallback.EVENT_PHONE_CAPABILITY_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.ActiveDataSubscriptionIdChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_ACTIVE_DATA_SUBSCRIPTION_ID_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.ActiveDataSubscriptionIdListener) {
+            eventList.add(TelephonyCallback.EVENT_ACTIVE_DATA_SUBSCRIPTION_ID_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.RadioPowerStateChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_RADIO_POWER_STATE_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.RadioPowerStateListener) {
+            eventList.add(TelephonyCallback.EVENT_RADIO_POWER_STATE_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.CarrierNetworkChangeListener) {
-            eventList.add(PhoneStateListener.EVENT_CARRIER_NETWORK_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.CarrierNetworkListener) {
+            eventList.add(TelephonyCallback.EVENT_CARRIER_NETWORK_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.RegistrationFailedListener) {
-            eventList.add(PhoneStateListener.EVENT_REGISTRATION_FAILURE);
+        if (telephonyCallback instanceof TelephonyCallback.RegistrationFailedListener) {
+            eventList.add(TelephonyCallback.EVENT_REGISTRATION_FAILURE);
         }
 
-        if (listener instanceof PhoneStateListener.CallAttributesChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_CALL_ATTRIBUTES_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.CallAttributesListener) {
+            eventList.add(TelephonyCallback.EVENT_CALL_ATTRIBUTES_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.BarringInfoChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_BARRING_INFO_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.BarringInfoListener) {
+            eventList.add(TelephonyCallback.EVENT_BARRING_INFO_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.PhysicalChannelConfigChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_PHYSICAL_CHANNEL_CONFIG_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.PhysicalChannelConfigListener) {
+            eventList.add(TelephonyCallback.EVENT_PHYSICAL_CHANNEL_CONFIG_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.DataEnabledChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_DATA_ENABLED_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.DataEnabledListener) {
+            eventList.add(TelephonyCallback.EVENT_DATA_ENABLED_CHANGED);
         }
 
-        if (listener instanceof PhoneStateListener.AllowedNetworkTypesChangedListener) {
-            eventList.add(PhoneStateListener.EVENT_ALLOWED_NETWORK_TYPE_LIST_CHANGED);
+        if (telephonyCallback instanceof TelephonyCallback.AllowedNetworkTypesListener) {
+            eventList.add(TelephonyCallback.EVENT_ALLOWED_NETWORK_TYPE_LIST_CHANGED);
         }
 
         return eventList;
@@ -955,200 +981,183 @@
         Set<Integer> eventList = new ArraySet<>();
 
         if ((eventMask & PhoneStateListener.LISTEN_SERVICE_STATE) != 0) {
-            eventList.add(PhoneStateListener.EVENT_SERVICE_STATE_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_SERVICE_STATE_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_SIGNAL_STRENGTH) != 0) {
-            eventList.add(PhoneStateListener.EVENT_SIGNAL_STRENGTH_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_SIGNAL_STRENGTH_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_MESSAGE_WAITING_INDICATOR) != 0) {
-            eventList.add(PhoneStateListener.EVENT_MESSAGE_WAITING_INDICATOR_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_MESSAGE_WAITING_INDICATOR_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_CALL_FORWARDING_INDICATOR) != 0) {
-            eventList.add(PhoneStateListener.EVENT_CALL_FORWARDING_INDICATOR_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_CALL_FORWARDING_INDICATOR_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_CELL_LOCATION) != 0) {
-            eventList.add(PhoneStateListener.EVENT_CELL_LOCATION_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_CELL_LOCATION_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_CALL_STATE) != 0) {
-            eventList.add(PhoneStateListener.EVENT_CALL_STATE_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_CALL_STATE_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_DATA_CONNECTION_STATE) != 0) {
-            eventList.add(PhoneStateListener.EVENT_DATA_CONNECTION_STATE_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_DATA_CONNECTION_STATE_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_DATA_ACTIVITY) != 0) {
-            eventList.add(PhoneStateListener.EVENT_DATA_ACTIVITY_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_DATA_ACTIVITY_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_SIGNAL_STRENGTHS) != 0) {
-            eventList.add(PhoneStateListener.EVENT_SIGNAL_STRENGTHS_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_SIGNAL_STRENGTHS_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_ALWAYS_REPORTED_SIGNAL_STRENGTH) != 0) {
-            eventList.add(PhoneStateListener.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_CELL_INFO) != 0) {
-            eventList.add(PhoneStateListener.EVENT_CELL_INFO_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_CELL_INFO_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_PRECISE_CALL_STATE) != 0) {
-            eventList.add(PhoneStateListener.EVENT_PRECISE_CALL_STATE_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_PRECISE_CALL_STATE_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_PRECISE_DATA_CONNECTION_STATE) != 0) {
-            eventList.add(PhoneStateListener.EVENT_PRECISE_DATA_CONNECTION_STATE_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_PRECISE_DATA_CONNECTION_STATE_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_DATA_CONNECTION_REAL_TIME_INFO) != 0) {
-            eventList.add(PhoneStateListener.EVENT_DATA_CONNECTION_REAL_TIME_INFO_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_DATA_CONNECTION_REAL_TIME_INFO_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_OEM_HOOK_RAW_EVENT) != 0) {
-            eventList.add(PhoneStateListener.EVENT_OEM_HOOK_RAW);
+            eventList.add(TelephonyCallback.EVENT_OEM_HOOK_RAW);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_SRVCC_STATE_CHANGED) != 0) {
-            eventList.add(PhoneStateListener.EVENT_SRVCC_STATE_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_SRVCC_STATE_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_CARRIER_NETWORK_CHANGE) != 0) {
-            eventList.add(PhoneStateListener.EVENT_CARRIER_NETWORK_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_CARRIER_NETWORK_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_VOICE_ACTIVATION_STATE) != 0) {
-            eventList.add(PhoneStateListener.EVENT_VOICE_ACTIVATION_STATE_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_VOICE_ACTIVATION_STATE_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_DATA_ACTIVATION_STATE) != 0) {
-            eventList.add(PhoneStateListener.EVENT_DATA_ACTIVATION_STATE_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_DATA_ACTIVATION_STATE_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_USER_MOBILE_DATA_STATE) != 0) {
-            eventList.add(PhoneStateListener.EVENT_USER_MOBILE_DATA_STATE_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_USER_MOBILE_DATA_STATE_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_DISPLAY_INFO_CHANGED) != 0) {
-            eventList.add(PhoneStateListener.EVENT_DISPLAY_INFO_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_DISPLAY_INFO_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_PHONE_CAPABILITY_CHANGE) != 0) {
-            eventList.add(PhoneStateListener.EVENT_PHONE_CAPABILITY_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_PHONE_CAPABILITY_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_ACTIVE_DATA_SUBSCRIPTION_ID_CHANGE) != 0) {
-            eventList.add(PhoneStateListener.EVENT_ACTIVE_DATA_SUBSCRIPTION_ID_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_ACTIVE_DATA_SUBSCRIPTION_ID_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_RADIO_POWER_STATE_CHANGED) != 0) {
-            eventList.add(PhoneStateListener.EVENT_RADIO_POWER_STATE_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_RADIO_POWER_STATE_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_EMERGENCY_NUMBER_LIST) != 0) {
-            eventList.add(PhoneStateListener.EVENT_EMERGENCY_NUMBER_LIST_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_EMERGENCY_NUMBER_LIST_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_CALL_DISCONNECT_CAUSES) != 0) {
-            eventList.add(PhoneStateListener.EVENT_CALL_DISCONNECT_CAUSE_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_CALL_DISCONNECT_CAUSE_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_CALL_ATTRIBUTES_CHANGED) != 0) {
-            eventList.add(PhoneStateListener.EVENT_CALL_ATTRIBUTES_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_CALL_ATTRIBUTES_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_IMS_CALL_DISCONNECT_CAUSES) != 0) {
-            eventList.add(PhoneStateListener.EVENT_IMS_CALL_DISCONNECT_CAUSE_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_IMS_CALL_DISCONNECT_CAUSE_CHANGED);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_OUTGOING_EMERGENCY_CALL) != 0) {
-            eventList.add(PhoneStateListener.EVENT_OUTGOING_EMERGENCY_CALL);
+            eventList.add(TelephonyCallback.EVENT_OUTGOING_EMERGENCY_CALL);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_OUTGOING_EMERGENCY_SMS) != 0) {
-            eventList.add(PhoneStateListener.EVENT_OUTGOING_EMERGENCY_SMS);
+            eventList.add(TelephonyCallback.EVENT_OUTGOING_EMERGENCY_SMS);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_REGISTRATION_FAILURE) != 0) {
-            eventList.add(PhoneStateListener.EVENT_REGISTRATION_FAILURE);
+            eventList.add(TelephonyCallback.EVENT_REGISTRATION_FAILURE);
         }
 
         if ((eventMask & PhoneStateListener.LISTEN_BARRING_INFO) != 0) {
-            eventList.add(PhoneStateListener.EVENT_BARRING_INFO_CHANGED);
+            eventList.add(TelephonyCallback.EVENT_BARRING_INFO_CHANGED);
         }
         return eventList;
 
     }
 
     /**
-     * Registers a listener object to receive notification of changes
-     * in specified telephony states.
+     * Registers a callback object to receive notification of changes in specified telephony states.
      * <p>
-     * To register a listener, pass a {@link PhoneStateListener} which implements
+     * To register a callback, pass a {@link TelephonyCallback} which implements
      * interfaces of events. For example,
-     * FakeServiceStateChangedListener extends {@link PhoneStateListener} implements
-     * {@link PhoneStateListener.ServiceStateChangedListener}.
+     * FakeServiceStateCallback extends {@link TelephonyCallback} implements
+     * {@link TelephonyCallback.ServiceStateListener}.
      *
      * At registration, and when a specified telephony state changes, the telephony manager invokes
-     * the appropriate callback method on the listener object and passes the current (updated)
+     * the appropriate callback method on the callback object and passes the current (updated)
      * values.
      * <p>
      *
      * If this TelephonyManager object has been created with
      * {@link TelephonyManager#createForSubscriptionId}, applies to the given subId.
      * Otherwise, applies to {@link SubscriptionManager#getDefaultSubscriptionId()}.
-     * To listen events for multiple subIds, pass a separate listener object to
+     * To register events for multiple subIds, pass a separate callback object to
      * each TelephonyManager object created with {@link TelephonyManager#createForSubscriptionId}.
      *
      * Note: if you call this method while in the middle of a binder transaction, you <b>must</b>
      * call {@link android.os.Binder#clearCallingIdentity()} before calling this method. A
      * {@link SecurityException} will be thrown otherwise.
      *
-     * This API should be used sparingly -- large numbers of listeners will cause system
-     * instability. If a process has registered too many listeners without unregistering them, it
-     * may encounter an {@link IllegalStateException} when trying to register more listeners.
+     * This API should be used sparingly -- large numbers of callbacks will cause system
+     * instability. If a process has registered too many callbacks without unregistering them, it
+     * may encounter an {@link IllegalStateException} when trying to register more callbacks.
      *
-     * @param listener The {@link PhoneStateListener} object to register.
+     * @param callback The {@link TelephonyCallback} object to register.
      */
-    public void registerPhoneStateListener(@NonNull @CallbackExecutor Executor executor, int subId,
-            String pkgName, String attributionTag, @NonNull PhoneStateListener listener,
+    public void registerTelephonyCallback(@NonNull @CallbackExecutor Executor executor,
+            int subId, String pkgName, String attributionTag, @NonNull TelephonyCallback callback,
             boolean notifyNow) {
-        listener.setExecutor(executor);
-        registerPhoneStateListener(subId, pkgName, attributionTag, listener,
-                getEventsFromListener(listener), notifyNow);
-    }
-
-    public void registerPhoneStateListenerWithEvents(int subId, String pkgName,
-            String attributionTag, @NonNull PhoneStateListener listener, int events,
-            boolean notifyNow) {
-        registerPhoneStateListener(
-                subId, pkgName, attributionTag, listener, getEventsFromBitmask(events), notifyNow);
-    }
-
-    private void registerPhoneStateListener(int subId,
-            String pkgName, String attributionTag, @NonNull PhoneStateListener listener,
-            @NonNull Set<Integer> events, boolean notifyNow) {
-        if (listener == null) {
+        if (callback == null) {
             throw new IllegalStateException("telephony service is null.");
         }
-
-        listenWithEventList(subId, pkgName, attributionTag, listener,
-                events.stream().mapToInt(i -> i).toArray(), notifyNow);
+        callback.init(executor);
+        listenFromCallback(subId, pkgName, attributionTag, callback,
+                getEventsFromCallback(callback).stream().mapToInt(i -> i).toArray(), notifyNow);
     }
 
     /**
-     * Unregister an existing {@link PhoneStateListener}.
+     * Unregister an existing {@link TelephonyCallback}.
      *
-     * @param listener The {@link PhoneStateListener} object to unregister.
+     * @param callback The {@link TelephonyCallback} object to unregister.
      */
-    public void unregisterPhoneStateListener(int subId, String pkgName, String attributionTag,
-                                             @NonNull PhoneStateListener listener,
-                                             boolean notifyNow) {
-        listenWithEventList(subId, pkgName, attributionTag, listener, new int[0], notifyNow);
+    public void unregisterTelephonyCallback(int subId, String pkgName, String attributionTag,
+            @NonNull TelephonyCallback callback, boolean notifyNow) {
+        listenFromCallback(subId, pkgName, attributionTag, callback, new int[0], notifyNow);
     }
 }
diff --git a/core/java/android/util/FeatureFlagUtils.java b/core/java/android/util/FeatureFlagUtils.java
index 2b577d0..3a33024 100644
--- a/core/java/android/util/FeatureFlagUtils.java
+++ b/core/java/android/util/FeatureFlagUtils.java
@@ -68,7 +68,7 @@
         DEFAULT_FLAGS.put(SETTINGS_DO_NOT_RESTORE_PRESERVED, "true");
 
         DEFAULT_FLAGS.put("settings_tether_all_in_one", "false");
-        DEFAULT_FLAGS.put("settings_silky_home", "false");
+        DEFAULT_FLAGS.put("settings_silky_home", "true");
         DEFAULT_FLAGS.put("settings_contextual_home", "false");
         DEFAULT_FLAGS.put(SETTINGS_PROVIDER_MODEL, "false");
         DEFAULT_FLAGS.put(SETTINGS_USE_NEW_BACKUP_ELIGIBILITY_RULES, "false");
diff --git a/core/java/android/view/AccessibilityInteractionController.java b/core/java/android/view/AccessibilityInteractionController.java
index 09452828..e5a137c 100644
--- a/core/java/android/view/AccessibilityInteractionController.java
+++ b/core/java/android/view/AccessibilityInteractionController.java
@@ -86,6 +86,12 @@
     // accessibility from hanging
     private static final long REQUEST_PREPARER_TIMEOUT_MS = 500;
 
+    // Callbacks should have the same configuration of the flags below to allow satisfying a pending
+    // node request on prefetch
+    private static final int FLAGS_AFFECTING_REPORTED_DATA =
+            AccessibilityNodeInfo.FLAG_INCLUDE_NOT_IMPORTANT_VIEWS
+            | AccessibilityNodeInfo.FLAG_REPORT_VIEW_IDS;
+
     private final ArrayList<AccessibilityNodeInfo> mTempAccessibilityNodeInfoList =
         new ArrayList<AccessibilityNodeInfo>();
 
@@ -114,6 +120,9 @@
     private AddNodeInfosForViewId mAddNodeInfosForViewId;
 
     @GuardedBy("mLock")
+    private ArrayList<Message> mPendingFindNodeByIdMessages;
+
+    @GuardedBy("mLock")
     private int mNumActiveRequestPreparers;
     @GuardedBy("mLock")
     private List<MessageHolder> mMessagesWaitingForRequestPreparer;
@@ -128,6 +137,7 @@
         mViewRootImpl = viewRootImpl;
         mPrefetcher = new AccessibilityNodePrefetcher();
         mA11yManager = mViewRootImpl.mContext.getSystemService(AccessibilityManager.class);
+        mPendingFindNodeByIdMessages = new ArrayList<>();
     }
 
     private void scheduleMessage(Message message, int interrogatingPid, long interrogatingTid,
@@ -177,7 +187,11 @@
         args.arg4 = arguments;
         message.obj = args;
 
-        scheduleMessage(message, interrogatingPid, interrogatingTid, CONSIDER_REQUEST_PREPARERS);
+        synchronized (mLock) {
+            mPendingFindNodeByIdMessages.add(message);
+            scheduleMessage(message, interrogatingPid, interrogatingTid,
+                    CONSIDER_REQUEST_PREPARERS);
+        }
     }
 
     /**
@@ -315,6 +329,9 @@
     }
 
     private void findAccessibilityNodeInfoByAccessibilityIdUiThread(Message message) {
+        synchronized (mLock) {
+            mPendingFindNodeByIdMessages.remove(message);
+        }
         final int flags = message.arg1;
 
         SomeArgs args = (SomeArgs) message.obj;
@@ -329,22 +346,58 @@
 
         args.recycle();
 
-        List<AccessibilityNodeInfo> infos = mTempAccessibilityNodeInfoList;
-        infos.clear();
+        View rootView = null;
+        AccessibilityNodeInfo rootNode = null;
         try {
             if (mViewRootImpl.mView == null || mViewRootImpl.mAttachInfo == null) {
                 return;
             }
             mViewRootImpl.mAttachInfo.mAccessibilityFetchFlags = flags;
-            final View root = findViewByAccessibilityId(accessibilityViewId);
-            if (root != null && isShown(root)) {
-                mPrefetcher.prefetchAccessibilityNodeInfos(
-                        root, virtualDescendantId, flags, infos, arguments);
+            rootView = findViewByAccessibilityId(accessibilityViewId);
+            if (rootView != null && isShown(rootView)) {
+                rootNode = populateAccessibilityNodeInfoForView(
+                        rootView, arguments, virtualDescendantId);
             }
         } finally {
-            updateInfosForViewportAndReturnFindNodeResult(
-                    infos, callback, interactionId, spec, interactiveRegion);
+            updateInfoForViewportAndReturnFindNodeResult(
+                    rootNode == null ? null : AccessibilityNodeInfo.obtain(rootNode),
+                    callback, interactionId, spec, interactiveRegion);
         }
+        ArrayList<AccessibilityNodeInfo> infos = mTempAccessibilityNodeInfoList;
+        infos.clear();
+        mPrefetcher.prefetchAccessibilityNodeInfos(
+                rootView, rootNode == null ? null : AccessibilityNodeInfo.obtain(rootNode),
+                virtualDescendantId, flags, infos);
+        mViewRootImpl.mAttachInfo.mAccessibilityFetchFlags = 0;
+        updateInfosForViewPort(infos, spec, interactiveRegion);
+        returnPrefetchResult(interactionId, infos, callback);
+        returnPendingFindAccessibilityNodeInfosInPrefetch(rootNode, infos, flags);
+    }
+
+    private AccessibilityNodeInfo populateAccessibilityNodeInfoForView(
+            View view, Bundle arguments, int virtualViewId) {
+        AccessibilityNodeProvider provider = view.getAccessibilityNodeProvider();
+        // Determine if we'll be populating extra data
+        final String extraDataRequested = (arguments == null) ? null
+                : arguments.getString(EXTRA_DATA_REQUESTED_KEY);
+        AccessibilityNodeInfo root = null;
+        if (provider == null) {
+            root = view.createAccessibilityNodeInfo();
+            if (root != null) {
+                if (extraDataRequested != null) {
+                    view.addExtraDataToAccessibilityNodeInfo(root, extraDataRequested, arguments);
+                }
+            }
+        } else {
+            root = provider.createAccessibilityNodeInfo(virtualViewId);
+            if (root != null) {
+                if (extraDataRequested != null) {
+                    provider.addExtraDataToAccessibilityNodeInfo(
+                            virtualViewId, root, extraDataRequested, arguments);
+                }
+            }
+        }
+        return root;
     }
 
     public void findAccessibilityNodeInfosByViewIdClientThread(long accessibilityNodeId,
@@ -403,6 +456,7 @@
                 mAddNodeInfosForViewId.reset();
             }
         } finally {
+            mViewRootImpl.mAttachInfo.mAccessibilityFetchFlags = 0;
             updateInfosForViewportAndReturnFindNodeResult(
                     infos, callback, interactionId, spec, interactiveRegion);
         }
@@ -485,6 +539,7 @@
                 }
             }
         } finally {
+            mViewRootImpl.mAttachInfo.mAccessibilityFetchFlags = 0;
             updateInfosForViewportAndReturnFindNodeResult(
                     infos, callback, interactionId, spec, interactiveRegion);
         }
@@ -576,6 +631,7 @@
                 }
             }
         } finally {
+            mViewRootImpl.mAttachInfo.mAccessibilityFetchFlags = 0;
             updateInfoForViewportAndReturnFindNodeResult(
                     focused, callback, interactionId, spec, interactiveRegion);
         }
@@ -630,6 +686,7 @@
                 }
             }
         } finally {
+            mViewRootImpl.mAttachInfo.mAccessibilityFetchFlags = 0;
             updateInfoForViewportAndReturnFindNodeResult(
                     next, callback, interactionId, spec, interactiveRegion);
         }
@@ -786,33 +843,6 @@
         }
     }
 
-    private void applyAppScaleAndMagnificationSpecIfNeeded(List<AccessibilityNodeInfo> infos,
-            MagnificationSpec spec) {
-        if (infos == null) {
-            return;
-        }
-        final float applicationScale = mViewRootImpl.mAttachInfo.mApplicationScale;
-        if (shouldApplyAppScaleAndMagnificationSpec(applicationScale, spec)) {
-            final int infoCount = infos.size();
-            for (int i = 0; i < infoCount; i++) {
-                AccessibilityNodeInfo info = infos.get(i);
-                applyAppScaleAndMagnificationSpecIfNeeded(info, spec);
-            }
-        }
-    }
-
-    private void adjustIsVisibleToUserIfNeeded(List<AccessibilityNodeInfo> infos,
-            Region interactiveRegion) {
-        if (interactiveRegion == null || infos == null) {
-            return;
-        }
-        final int infoCount = infos.size();
-        for (int i = 0; i < infoCount; i++) {
-            AccessibilityNodeInfo info = infos.get(i);
-            adjustIsVisibleToUserIfNeeded(info, interactiveRegion);
-        }
-    }
-
     private void adjustIsVisibleToUserIfNeeded(AccessibilityNodeInfo info,
             Region interactiveRegion) {
         if (interactiveRegion == null || info == null) {
@@ -833,17 +863,6 @@
         return false;
     }
 
-    private void adjustBoundsInScreenIfNeeded(List<AccessibilityNodeInfo> infos) {
-        if (infos == null || shouldBypassAdjustBoundsInScreen()) {
-            return;
-        }
-        final int infoCount = infos.size();
-        for (int i = 0; i < infoCount; i++) {
-            final AccessibilityNodeInfo info = infos.get(i);
-            adjustBoundsInScreenIfNeeded(info);
-        }
-    }
-
     private void adjustBoundsInScreenIfNeeded(AccessibilityNodeInfo info) {
         if (info == null || shouldBypassAdjustBoundsInScreen()) {
             return;
@@ -891,17 +910,6 @@
         return screenMatrix == null || screenMatrix.isIdentity();
     }
 
-    private void associateLeashedParentIfNeeded(List<AccessibilityNodeInfo> infos) {
-        if (infos == null || shouldBypassAssociateLeashedParent()) {
-            return;
-        }
-        final int infoCount = infos.size();
-        for (int i = 0; i < infoCount; i++) {
-            final AccessibilityNodeInfo info = infos.get(i);
-            associateLeashedParentIfNeeded(info);
-        }
-    }
-
     private void associateLeashedParentIfNeeded(AccessibilityNodeInfo info) {
         if (info == null || shouldBypassAssociateLeashedParent()) {
             return;
@@ -975,18 +983,46 @@
         return (appScale != 1.0f || (spec != null && !spec.isNop()));
     }
 
+    private void updateInfosForViewPort(List<AccessibilityNodeInfo> infos, MagnificationSpec spec,
+                                        Region interactiveRegion) {
+        for (int i = 0; i < infos.size(); i++) {
+            updateInfoForViewPort(infos.get(i), spec, interactiveRegion);
+        }
+    }
+
+    private void updateInfoForViewPort(AccessibilityNodeInfo info, MagnificationSpec spec,
+                                       Region interactiveRegion) {
+        associateLeashedParentIfNeeded(info);
+        applyScreenMatrixIfNeeded(info);
+        adjustBoundsInScreenIfNeeded(info);
+        // To avoid applyAppScaleAndMagnificationSpecIfNeeded changing the bounds of node,
+        // then impact the visibility result, we need to adjust visibility before apply scale.
+        adjustIsVisibleToUserIfNeeded(info, interactiveRegion);
+        applyAppScaleAndMagnificationSpecIfNeeded(info, spec);
+    }
+
     private void updateInfosForViewportAndReturnFindNodeResult(List<AccessibilityNodeInfo> infos,
             IAccessibilityInteractionConnectionCallback callback, int interactionId,
             MagnificationSpec spec, Region interactiveRegion) {
+        if (infos != null) {
+            updateInfosForViewPort(infos, spec, interactiveRegion);
+        }
+        returnFindNodesResult(infos, callback, interactionId);
+    }
+
+    private void returnFindNodeResult(AccessibilityNodeInfo info,
+                                      IAccessibilityInteractionConnectionCallback callback,
+                                      int interactionId) {
         try {
-            mViewRootImpl.mAttachInfo.mAccessibilityFetchFlags = 0;
-            associateLeashedParentIfNeeded(infos);
-            applyScreenMatrixIfNeeded(infos);
-            adjustBoundsInScreenIfNeeded(infos);
-            // To avoid applyAppScaleAndMagnificationSpecIfNeeded changing the bounds of node,
-            // then impact the visibility result, we need to adjust visibility before apply scale.
-            adjustIsVisibleToUserIfNeeded(infos, interactiveRegion);
-            applyAppScaleAndMagnificationSpecIfNeeded(infos, spec);
+            callback.setFindAccessibilityNodeInfoResult(info, interactionId);
+        } catch (RemoteException re) {
+            /* ignore - the other side will time out */
+        }
+    }
+
+    private void returnFindNodesResult(List<AccessibilityNodeInfo> infos,
+            IAccessibilityInteractionConnectionCallback callback, int interactionId) {
+        try {
             callback.setFindAccessibilityNodeInfosResult(infos, interactionId);
             if (infos != null) {
                 infos.clear();
@@ -996,22 +1032,80 @@
         }
     }
 
+    private void returnPendingFindAccessibilityNodeInfosInPrefetch(AccessibilityNodeInfo rootNode,
+            List<AccessibilityNodeInfo> infos, int flags) {
+
+        AccessibilityNodeInfo satisfiedPendingRequestPrefetchedNode = null;
+        IAccessibilityInteractionConnectionCallback satisfiedPendingRequestCallback = null;
+        int satisfiedPendingRequestInteractionId = AccessibilityInteractionClient.NO_ID;
+
+        synchronized (mLock) {
+            for (int i = 0; i < mPendingFindNodeByIdMessages.size(); i++) {
+                final Message pendingMessage = mPendingFindNodeByIdMessages.get(i);
+                final int pendingFlags = pendingMessage.arg1;
+                if ((pendingFlags & FLAGS_AFFECTING_REPORTED_DATA)
+                        != (flags & FLAGS_AFFECTING_REPORTED_DATA)) {
+                    continue;
+                }
+                SomeArgs args = (SomeArgs) pendingMessage.obj;
+                final int accessibilityViewId = args.argi1;
+                final int virtualDescendantId = args.argi2;
+
+                satisfiedPendingRequestPrefetchedNode = nodeWithIdFromList(rootNode,
+                        infos, AccessibilityNodeInfo.makeNodeId(
+                                accessibilityViewId, virtualDescendantId));
+
+                if (satisfiedPendingRequestPrefetchedNode != null) {
+                    satisfiedPendingRequestCallback =
+                            (IAccessibilityInteractionConnectionCallback) args.arg1;
+                    satisfiedPendingRequestInteractionId = args.argi3;
+                    mHandler.removeMessages(
+                            PrivateHandler.MSG_FIND_ACCESSIBILITY_NODE_INFO_BY_ACCESSIBILITY_ID,
+                            pendingMessage.obj);
+                    args.recycle();
+                    break;
+                }
+            }
+            mPendingFindNodeByIdMessages.clear();
+        }
+
+        if (satisfiedPendingRequestPrefetchedNode != null) {
+            returnFindNodeResult(
+                    AccessibilityNodeInfo.obtain(satisfiedPendingRequestPrefetchedNode),
+                    satisfiedPendingRequestCallback, satisfiedPendingRequestInteractionId);
+        }
+    }
+
+    private AccessibilityNodeInfo nodeWithIdFromList(AccessibilityNodeInfo rootNode,
+            List<AccessibilityNodeInfo> infos, long nodeId) {
+        if (rootNode != null && rootNode.getSourceNodeId() == nodeId) {
+            return rootNode;
+        }
+        for (int j = 0; j < infos.size(); j++) {
+            AccessibilityNodeInfo info = infos.get(j);
+            if (info.getSourceNodeId() == nodeId) {
+                return info;
+            }
+        }
+        return null;
+    }
+
+    private void returnPrefetchResult(int interactionId, List<AccessibilityNodeInfo> infos,
+                                      IAccessibilityInteractionConnectionCallback callback) {
+        if (infos.size() > 0) {
+            try {
+                callback.setPrefetchAccessibilityNodeInfoResult(infos, interactionId);
+            } catch (RemoteException re) {
+                /* ignore - other side isn't too bothered if this doesn't arrive */
+            }
+        }
+    }
+
     private void updateInfoForViewportAndReturnFindNodeResult(AccessibilityNodeInfo info,
             IAccessibilityInteractionConnectionCallback callback, int interactionId,
             MagnificationSpec spec, Region interactiveRegion) {
-        try {
-            mViewRootImpl.mAttachInfo.mAccessibilityFetchFlags = 0;
-            associateLeashedParentIfNeeded(info);
-            applyScreenMatrixIfNeeded(info);
-            adjustBoundsInScreenIfNeeded(info);
-            // To avoid applyAppScaleAndMagnificationSpecIfNeeded changing the bounds of node,
-            // then impact the visibility result, we need to adjust visibility before apply scale.
-            adjustIsVisibleToUserIfNeeded(info, interactiveRegion);
-            applyAppScaleAndMagnificationSpecIfNeeded(info, spec);
-            callback.setFindAccessibilityNodeInfoResult(info, interactionId);
-        } catch (RemoteException re) {
-                /* ignore - the other side will time out */
-        }
+        updateInfoForViewPort(info, spec, interactiveRegion);
+        returnFindNodeResult(info, callback, interactionId);
     }
 
     private boolean handleClickableSpanActionUiThread(
@@ -1054,56 +1148,45 @@
 
         private final ArrayList<View> mTempViewList = new ArrayList<View>();
 
-        public void prefetchAccessibilityNodeInfos(View view, int virtualViewId, int fetchFlags,
-                List<AccessibilityNodeInfo> outInfos, Bundle arguments) {
+        public void prefetchAccessibilityNodeInfos(View view, AccessibilityNodeInfo root,
+                int virtualViewId, int fetchFlags, List<AccessibilityNodeInfo> outInfos) {
+            if (root == null) {
+                return;
+            }
             AccessibilityNodeProvider provider = view.getAccessibilityNodeProvider();
-            // Determine if we'll be populating extra data
-            final String extraDataRequested = (arguments == null) ? null
-                    : arguments.getString(EXTRA_DATA_REQUESTED_KEY);
             if (provider == null) {
-                AccessibilityNodeInfo root = view.createAccessibilityNodeInfo();
-                if (root != null) {
-                    if (extraDataRequested != null) {
-                        view.addExtraDataToAccessibilityNodeInfo(
-                                root, extraDataRequested, arguments);
-                    }
-                    outInfos.add(root);
-                    if ((fetchFlags & AccessibilityNodeInfo.FLAG_PREFETCH_PREDECESSORS) != 0) {
-                        prefetchPredecessorsOfRealNode(view, outInfos);
-                    }
-                    if ((fetchFlags & AccessibilityNodeInfo.FLAG_PREFETCH_SIBLINGS) != 0) {
-                        prefetchSiblingsOfRealNode(view, outInfos);
-                    }
-                    if ((fetchFlags & AccessibilityNodeInfo.FLAG_PREFETCH_DESCENDANTS) != 0) {
-                        prefetchDescendantsOfRealNode(view, outInfos);
-                    }
+                if ((fetchFlags & AccessibilityNodeInfo.FLAG_PREFETCH_PREDECESSORS) != 0) {
+                    prefetchPredecessorsOfRealNode(view, outInfos);
+                }
+                if ((fetchFlags & AccessibilityNodeInfo.FLAG_PREFETCH_SIBLINGS) != 0) {
+                    prefetchSiblingsOfRealNode(view, outInfos);
+                }
+                if ((fetchFlags & AccessibilityNodeInfo.FLAG_PREFETCH_DESCENDANTS) != 0) {
+                    prefetchDescendantsOfRealNode(view, outInfos);
                 }
             } else {
-                final AccessibilityNodeInfo root =
-                        provider.createAccessibilityNodeInfo(virtualViewId);
-                if (root != null) {
-                    if (extraDataRequested != null) {
-                        provider.addExtraDataToAccessibilityNodeInfo(
-                                virtualViewId, root, extraDataRequested, arguments);
-                    }
-                    outInfos.add(root);
-                    if ((fetchFlags & AccessibilityNodeInfo.FLAG_PREFETCH_PREDECESSORS) != 0) {
-                        prefetchPredecessorsOfVirtualNode(root, view, provider, outInfos);
-                    }
-                    if ((fetchFlags & AccessibilityNodeInfo.FLAG_PREFETCH_SIBLINGS) != 0) {
-                        prefetchSiblingsOfVirtualNode(root, view, provider, outInfos);
-                    }
-                    if ((fetchFlags & AccessibilityNodeInfo.FLAG_PREFETCH_DESCENDANTS) != 0) {
-                        prefetchDescendantsOfVirtualNode(root, provider, outInfos);
-                    }
+                if ((fetchFlags & AccessibilityNodeInfo.FLAG_PREFETCH_PREDECESSORS) != 0) {
+                    prefetchPredecessorsOfVirtualNode(root, view, provider, outInfos);
+                }
+                if ((fetchFlags & AccessibilityNodeInfo.FLAG_PREFETCH_SIBLINGS) != 0) {
+                    prefetchSiblingsOfVirtualNode(root, view, provider, outInfos);
+                }
+                if ((fetchFlags & AccessibilityNodeInfo.FLAG_PREFETCH_DESCENDANTS) != 0) {
+                    prefetchDescendantsOfVirtualNode(root, provider, outInfos);
                 }
             }
             if (ENFORCE_NODE_TREE_CONSISTENT) {
-                enforceNodeTreeConsistent(outInfos);
+                enforceNodeTreeConsistent(root, outInfos);
             }
         }
 
-        private void enforceNodeTreeConsistent(List<AccessibilityNodeInfo> nodes) {
+        private boolean shouldStopPrefetching(List prefetchededInfos) {
+            return mHandler.hasUserInteractiveMessagesWaiting()
+                    || prefetchededInfos.size() >= MAX_ACCESSIBILITY_NODE_INFO_BATCH_SIZE;
+        }
+
+        private void enforceNodeTreeConsistent(
+                AccessibilityNodeInfo root, List<AccessibilityNodeInfo> nodes) {
             LongSparseArray<AccessibilityNodeInfo> nodeMap =
                     new LongSparseArray<AccessibilityNodeInfo>();
             final int nodeCount = nodes.size();
@@ -1114,7 +1197,6 @@
 
             // If the nodes are a tree it does not matter from
             // which node we start to search for the root.
-            AccessibilityNodeInfo root = nodeMap.valueAt(0);
             AccessibilityNodeInfo parent = root;
             while (parent != null) {
                 root = parent;
@@ -1181,9 +1263,11 @@
 
         private void prefetchPredecessorsOfRealNode(View view,
                 List<AccessibilityNodeInfo> outInfos) {
+            if (shouldStopPrefetching(outInfos)) {
+                return;
+            }
             ViewParent parent = view.getParentForAccessibility();
-            while (parent instanceof View
-                    && outInfos.size() < MAX_ACCESSIBILITY_NODE_INFO_BATCH_SIZE) {
+            while (parent instanceof View && !shouldStopPrefetching(outInfos)) {
                 View parentView = (View) parent;
                 AccessibilityNodeInfo info = parentView.createAccessibilityNodeInfo();
                 if (info != null) {
@@ -1195,6 +1279,9 @@
 
         private void prefetchSiblingsOfRealNode(View current,
                 List<AccessibilityNodeInfo> outInfos) {
+            if (shouldStopPrefetching(outInfos)) {
+                return;
+            }
             ViewParent parent = current.getParentForAccessibility();
             if (parent instanceof ViewGroup) {
                 ViewGroup parentGroup = (ViewGroup) parent;
@@ -1204,7 +1291,7 @@
                     parentGroup.addChildrenForAccessibility(children);
                     final int childCount = children.size();
                     for (int i = 0; i < childCount; i++) {
-                        if (outInfos.size() >= MAX_ACCESSIBILITY_NODE_INFO_BATCH_SIZE) {
+                        if (shouldStopPrefetching(outInfos)) {
                             return;
                         }
                         View child = children.get(i);
@@ -1232,7 +1319,7 @@
 
         private void prefetchDescendantsOfRealNode(View root,
                 List<AccessibilityNodeInfo> outInfos) {
-            if (!(root instanceof ViewGroup)) {
+            if (shouldStopPrefetching(outInfos) || !(root instanceof ViewGroup)) {
                 return;
             }
             HashMap<View, AccessibilityNodeInfo> addedChildren =
@@ -1243,7 +1330,7 @@
                 root.addChildrenForAccessibility(children);
                 final int childCount = children.size();
                 for (int i = 0; i < childCount; i++) {
-                    if (outInfos.size() >= MAX_ACCESSIBILITY_NODE_INFO_BATCH_SIZE) {
+                    if (shouldStopPrefetching(outInfos)) {
                         return;
                     }
                     View child = children.get(i);
@@ -1268,7 +1355,7 @@
             } finally {
                 children.clear();
             }
-            if (outInfos.size() < MAX_ACCESSIBILITY_NODE_INFO_BATCH_SIZE) {
+            if (!shouldStopPrefetching(outInfos)) {
                 for (Map.Entry<View, AccessibilityNodeInfo> entry : addedChildren.entrySet()) {
                     View addedChild = entry.getKey();
                     AccessibilityNodeInfo virtualRoot = entry.getValue();
@@ -1290,7 +1377,7 @@
             long parentNodeId = root.getParentNodeId();
             int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId(parentNodeId);
             while (accessibilityViewId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID) {
-                if (outInfos.size() >= MAX_ACCESSIBILITY_NODE_INFO_BATCH_SIZE) {
+                if (shouldStopPrefetching(outInfos)) {
                     return;
                 }
                 final int virtualDescendantId =
@@ -1335,7 +1422,7 @@
                 if (parent != null) {
                     final int childCount = parent.getChildCount();
                     for (int i = 0; i < childCount; i++) {
-                        if (outInfos.size() >= MAX_ACCESSIBILITY_NODE_INFO_BATCH_SIZE) {
+                        if (shouldStopPrefetching(outInfos)) {
                             return;
                         }
                         final long childNodeId = parent.getChildId(i);
@@ -1360,7 +1447,7 @@
             final int initialOutInfosSize = outInfos.size();
             final int childCount = root.getChildCount();
             for (int i = 0; i < childCount; i++) {
-                if (outInfos.size() >= MAX_ACCESSIBILITY_NODE_INFO_BATCH_SIZE) {
+                if (shouldStopPrefetching(outInfos)) {
                     return;
                 }
                 final long childNodeId = root.getChildId(i);
@@ -1370,7 +1457,7 @@
                     outInfos.add(child);
                 }
             }
-            if (outInfos.size() < MAX_ACCESSIBILITY_NODE_INFO_BATCH_SIZE) {
+            if (!shouldStopPrefetching(outInfos)) {
                 final int addedChildCount = outInfos.size() - initialOutInfosSize;
                 for (int i = 0; i < addedChildCount; i++) {
                     AccessibilityNodeInfo child = outInfos.get(initialOutInfosSize + i);
@@ -1479,6 +1566,10 @@
         boolean hasAccessibilityCallback(Message message) {
             return message.what < FIRST_NO_ACCESSIBILITY_CALLBACK_MSG ? true : false;
         }
+
+        boolean hasUserInteractiveMessagesWaiting() {
+            return hasMessagesOrCallbacks();
+        }
     }
 
     private final class AddNodeInfosForViewId implements Predicate<View> {
diff --git a/core/java/android/view/Choreographer.java b/core/java/android/view/Choreographer.java
index 59299f6..5c65c65 100644
--- a/core/java/android/view/Choreographer.java
+++ b/core/java/android/view/Choreographer.java
@@ -744,7 +744,10 @@
         }
 
         try {
-            Trace.traceBegin(Trace.TRACE_TAG_VIEW, "Choreographer#doFrame");
+            if (Trace.isTagEnabled(Trace.TRACE_TAG_VIEW)) {
+                Trace.traceBegin(Trace.TRACE_TAG_VIEW,
+                        "Choreographer#doFrame " + vsyncEventData.id);
+            }
             AnimationUtils.lockAnimationClock(frameTimeNanos / TimeUtils.NANOS_PER_MS);
 
             mFrameInfo.markInputHandlingStart();
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index ebef464..ab7732b 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -22188,9 +22188,6 @@
      * and hardware acceleration.
      */
     boolean draw(Canvas canvas, ViewGroup parent, long drawingTime) {
-        // Clear the overscroll effect:
-        // TODO: Use internal API instead of overriding the existing RenderEffect
-        setRenderEffect(null);
 
         final boolean hardwareAcceleratedCanvas = canvas.isHardwareAccelerated();
         /* If an attached view draws to a HW canvas, it may use its RenderNode + DisplayList.
diff --git a/core/java/android/view/WindowManager.java b/core/java/android/view/WindowManager.java
index 1819da4..7e9a850 100644
--- a/core/java/android/view/WindowManager.java
+++ b/core/java/android/view/WindowManager.java
@@ -613,6 +613,10 @@
      * For example, for activities in multi-window mode, the metrics returned are based on the
      * current bounds that the user has selected for the {@link android.app.Activity Activity}'s
      * task.
+     * <p>
+     * In most scenarios, {@link #getCurrentWindowMetrics()} rather than
+     * {@link #getMaximumWindowMetrics()} is the correct API to use, since it ensures values reflect
+     * window size when the app is not fullscreen.
      *
      * @see #getMaximumWindowMetrics()
      * @see WindowMetrics
@@ -624,26 +628,27 @@
     /**
      * Returns the largest {@link WindowMetrics} an app may expect in the current system state.
      * <p>
-     * The metrics describe the size of the largest potential area the window might occupy with
-     * {@link LayoutParams#MATCH_PARENT MATCH_PARENT} width and height, and the {@link WindowInsets}
-     * such a window would have.
-     * <p>
      * The value of this is based on the largest <b>potential</b> windowing state of the system.
      *
      * For example, for activities in multi-window mode, the metrics returned are based on the
      * what the bounds would be if the user expanded the {@link android.app.Activity Activity}'s
      * task to cover the entire screen.
-     *
+     * <p>
+     * The metrics describe the size of the largest potential area the window might occupy with
+     * {@link LayoutParams#MATCH_PARENT MATCH_PARENT} width and height, and the {@link WindowInsets}
+     * such a window would have.
+     * <p>
      * Note that this might still be smaller than the size of the physical display if certain areas
      * of the display are not available to windows created in this {@link Context}.
-     * <p>
+     *
      * For example, given that there's a device which have a multi-task mode to limit activities
      * to a half screen. In this case, {@link #getMaximumWindowMetrics()} reports the bounds of
-     * the half screen which the activity is located, while {@link Display#getRealSize(Point)} still
-     * reports the bounds of the whole physical display.
-     *
-     * Despite this, {@link #getMaximumWindowMetrics()} and {@link Display#getRealSize(Point)}
-     * reports the same bounds in general.
+     * the half screen which the activity is located.
+     * <p>
+     * <b>Generally {@link #getCurrentWindowMetrics()} is the correct API to use</b> for choosing
+     * UI layouts. {@link #getMaximumWindowMetrics()} are only appropriate when the application
+     * needs to know the largest possible size it can occupy if the user expands/maximizes it on the
+     * screen.
      *
      * @see #getCurrentWindowMetrics()
      * @see WindowMetrics
diff --git a/core/java/android/view/WindowlessWindowManager.java b/core/java/android/view/WindowlessWindowManager.java
index 7cc2db1..72d403e 100644
--- a/core/java/android/view/WindowlessWindowManager.java
+++ b/core/java/android/view/WindowlessWindowManager.java
@@ -149,8 +149,15 @@
         if (((attrs.inputFeatures &
                 WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0)) {
             try {
-                mRealWm.grantInputChannel(displayId, sc, window, mHostInputToken, attrs.flags,
+                if(mRealWm instanceof IWindowSession.Stub) {
+                    mRealWm.grantInputChannel(displayId,
+                        new SurfaceControl(sc, "WindowlessWindowManager.addToDisplay"),
+                        window, mHostInputToken, attrs.flags, attrs.privateFlags, attrs.type,
+                        outInputChannel);
+                } else {
+                    mRealWm.grantInputChannel(displayId, sc, window, mHostInputToken, attrs.flags,
                         attrs.privateFlags, attrs.type, outInputChannel);
+                }
             } catch (RemoteException e) {
                 Log.e(TAG, "Failed to grant input to surface: ", e);
             }
@@ -293,8 +300,14 @@
         if ((attrChanges & WindowManager.LayoutParams.FLAGS_CHANGED) != 0
                 && state.mInputChannelToken != null) {
             try {
-                mRealWm.updateInputChannel(state.mInputChannelToken, state.mDisplayId, sc,
-                        attrs.flags, attrs.privateFlags, state.mInputRegion);
+                if(mRealWm instanceof IWindowSession.Stub) {
+                    mRealWm.updateInputChannel(state.mInputChannelToken, state.mDisplayId,
+                            new SurfaceControl(sc, "WindowlessWindowManager.relayout"),
+                            attrs.flags, attrs.privateFlags, state.mInputRegion);
+                } else {
+                    mRealWm.updateInputChannel(state.mInputChannelToken, state.mDisplayId, sc,
+                            attrs.flags, attrs.privateFlags, state.mInputRegion);
+                }
             } catch (RemoteException e) {
                 Log.e(TAG, "Failed to update surface input channel: ", e);
             }
diff --git a/core/java/android/view/accessibility/AccessibilityInteractionClient.java b/core/java/android/view/accessibility/AccessibilityInteractionClient.java
index f63749b..8d1271d 100644
--- a/core/java/android/view/accessibility/AccessibilityInteractionClient.java
+++ b/core/java/android/view/accessibility/AccessibilityInteractionClient.java
@@ -23,7 +23,9 @@
 import android.os.Binder;
 import android.os.Build;
 import android.os.Bundle;
+import android.os.Handler;
 import android.os.IBinder;
+import android.os.Looper;
 import android.os.Message;
 import android.os.Process;
 import android.os.RemoteException;
@@ -113,6 +115,8 @@
 
     private final Object mInstanceLock = new Object();
 
+    private Handler mMainHandler;
+
     private volatile int mInteractionId = -1;
 
     private AccessibilityNodeInfo mFindAccessibilityNodeInfoResult;
@@ -123,6 +127,11 @@
 
     private Message mSameThreadMessage;
 
+    private int mInteractionIdWaitingForPrefetchResult;
+    private int mConnectionIdWaitingForPrefetchResult;
+    private String[] mPackageNamesForNextPrefetchResult;
+    private Runnable mPrefetchResultRunnable;
+
     /**
      * @return The client for the current thread.
      */
@@ -197,6 +206,10 @@
 
     private AccessibilityInteractionClient() {
         /* reducing constructor visibility */
+        Looper mainLooper = Looper.getMainLooper();
+        if (mainLooper != null) {
+            mMainHandler = new Handler(mainLooper);
+        }
     }
 
     /**
@@ -451,16 +464,16 @@
                     Binder.restoreCallingIdentity(identityToken);
                 }
                 if (packageNames != null) {
-                    List<AccessibilityNodeInfo> infos = getFindAccessibilityNodeInfosResultAndClear(
-                            interactionId);
-                    finalizeAndCacheAccessibilityNodeInfos(infos, connectionId,
-                            bypassCache, packageNames);
-                    if (infos != null && !infos.isEmpty()) {
-                        for (int i = 1; i < infos.size(); i++) {
-                            infos.get(i).recycle();
-                        }
-                        return infos.get(0);
+                    AccessibilityNodeInfo info =
+                            getFindAccessibilityNodeInfoResultAndClear(interactionId);
+                    if ((prefetchFlags & AccessibilityNodeInfo.FLAG_PREFETCH_MASK) != 0
+                            && info != null) {
+                        setInteractionWaitingForPrefetchResult(interactionId, connectionId,
+                                packageNames);
                     }
+                    finalizeAndCacheAccessibilityNodeInfo(info, connectionId,
+                            bypassCache, packageNames);
+                    return info;
                 }
             } else {
                 if (DEBUG) {
@@ -474,6 +487,15 @@
         return null;
     }
 
+    private void setInteractionWaitingForPrefetchResult(int interactionId, int connectionId,
+            String[] packageNames) {
+        synchronized (mInstanceLock) {
+            mInteractionIdWaitingForPrefetchResult = interactionId;
+            mConnectionIdWaitingForPrefetchResult = connectionId;
+            mPackageNamesForNextPrefetchResult = packageNames;
+        }
+    }
+
     private static String idToString(int accessibilityWindowId, long accessibilityNodeId) {
         return accessibilityWindowId + "/"
                 + AccessibilityNodeInfo.idToString(accessibilityNodeId);
@@ -829,6 +851,59 @@
     }
 
     /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void setPrefetchAccessibilityNodeInfoResult(@NonNull List<AccessibilityNodeInfo> infos,
+                                                       int interactionId) {
+        List<AccessibilityNodeInfo> infosCopy = null;
+        int mConnectionIdWaitingForPrefetchResultCopy = -1;
+        String[] mPackageNamesForNextPrefetchResultCopy = null;
+
+        synchronized (mInstanceLock) {
+            if (!infos.isEmpty() && mInteractionIdWaitingForPrefetchResult == interactionId) {
+                if (mMainHandler != null) {
+                    if (mPrefetchResultRunnable != null) {
+                        mMainHandler.removeCallbacks(mPrefetchResultRunnable);
+                        mPrefetchResultRunnable = null;
+                    }
+                    /**
+                     * TODO(b/180957109): AccessibilityCache is prone to deadlocks
+                     * We post caching the prefetched nodes in the main thread. Using the binder
+                     * thread results in "Long monitor contention with owner main" logs where
+                     * service response times may exceed 5 seconds. This is due to the cache calling
+                     * out to the system when refreshing nodes with the lock held.
+                     */
+                    mPrefetchResultRunnable = () -> finalizeAndCacheAccessibilityNodeInfos(
+                            infos, mConnectionIdWaitingForPrefetchResult, false,
+                            mPackageNamesForNextPrefetchResult);
+                    mMainHandler.post(mPrefetchResultRunnable);
+
+                } else {
+                    for (AccessibilityNodeInfo info : infos) {
+                        infosCopy.add(new AccessibilityNodeInfo(info));
+                    }
+                    mConnectionIdWaitingForPrefetchResultCopy =
+                            mConnectionIdWaitingForPrefetchResult;
+                    mPackageNamesForNextPrefetchResultCopy =
+                            new String[mPackageNamesForNextPrefetchResult.length];
+                    for (int i = 0; i < mPackageNamesForNextPrefetchResult.length; i++) {
+                        mPackageNamesForNextPrefetchResultCopy[i] =
+                                mPackageNamesForNextPrefetchResult[i];
+                    }
+                }
+            }
+
+        }
+
+        if (infosCopy != null) {
+            finalizeAndCacheAccessibilityNodeInfos(
+                    infosCopy, mConnectionIdWaitingForPrefetchResultCopy, false,
+                    mPackageNamesForNextPrefetchResultCopy);
+        }
+    }
+
+    /**
      * Gets the result of a request to perform an accessibility action.
      *
      * @param interactionId The interaction id to match the result with the request.
diff --git a/core/java/android/view/accessibility/IAccessibilityInteractionConnectionCallback.aidl b/core/java/android/view/accessibility/IAccessibilityInteractionConnectionCallback.aidl
index 049bb31..231e75a 100644
--- a/core/java/android/view/accessibility/IAccessibilityInteractionConnectionCallback.aidl
+++ b/core/java/android/view/accessibility/IAccessibilityInteractionConnectionCallback.aidl
@@ -47,6 +47,15 @@
         int interactionId);
 
     /**
+     * Sets the result of a prefetch request that returns {@link AccessibilityNodeInfo}s.
+     *
+     * @param root The {@link AccessibilityNodeInfo} for which the prefetching is based off of.
+     * @param infos The result {@link AccessibilityNodeInfo}s.
+     */
+    void setPrefetchAccessibilityNodeInfoResult(
+        in List<AccessibilityNodeInfo> infos, int interactionId);
+
+    /**
      * Sets the result of a request to perform an accessibility action.
      *
      * @param Whether the action was performed.
diff --git a/core/java/android/widget/EdgeEffect.java b/core/java/android/widget/EdgeEffect.java
index 1b62266..dc42ad5 100644
--- a/core/java/android/widget/EdgeEffect.java
+++ b/core/java/android/widget/EdgeEffect.java
@@ -29,7 +29,6 @@
 import android.graphics.Paint;
 import android.graphics.RecordingCanvas;
 import android.graphics.Rect;
-import android.graphics.RenderEffect;
 import android.graphics.RenderNode;
 import android.os.Build;
 import android.util.AttributeSet;
@@ -83,6 +82,8 @@
     public @interface EdgeEffectType {
     }
 
+    private static final float DEFAULT_MAX_STRETCH_INTENSITY = 1.5f;
+
     @SuppressWarnings("UnusedDeclaration")
     private static final String TAG = "EdgeEffect";
 
@@ -128,6 +129,8 @@
 
     private long mStartTime;
     private float mDuration;
+    private float mStretchIntensity = DEFAULT_MAX_STRETCH_INTENSITY;
+    private float mStretchDistance = -1f;
 
     private final Interpolator mInterpolator;
 
@@ -146,6 +149,8 @@
     private float mPullDistance;
 
     private final Rect mBounds = new Rect();
+    private float mWidth;
+    private float mHeight;
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 123769450)
     private final Paint mPaint = new Paint();
     private float mRadius;
@@ -202,6 +207,19 @@
         mBaseGlowScale = h > 0 ? Math.min(oh / h, 1.f) : 1.f;
 
         mBounds.set(mBounds.left, mBounds.top, width, (int) Math.min(height, h));
+
+        mWidth = width;
+        mHeight = height;
+    }
+
+    /**
+     * Configure the distance in pixels to stretch the content. This is only consumed as part
+     * if {@link #setType(int)} is set to {@link #TYPE_STRETCH}
+     * @param stretchDistance Stretch distance in pixels when the target View is overscrolled
+     * @hide
+     */
+    public void setStretchDistance(float stretchDistance) {
+        mStretchDistance = stretchDistance;
     }
 
     /**
@@ -437,6 +455,13 @@
     }
 
     /**
+     * @hide
+     */
+    public void setMaxStretchIntensity(float stretchIntensity) {
+        mStretchIntensity = stretchIntensity;
+    }
+
+    /**
      * Set or clear the blend mode. A blend mode defines how source pixels
      * (generated by a drawing command) are composited with the destination pixels
      * (content of the render target).
@@ -520,23 +545,55 @@
             RecordingCanvas recordingCanvas = (RecordingCanvas) canvas;
             if (mTmpMatrix == null) {
                 mTmpMatrix = new Matrix();
-                mTmpPoints = new float[4];
+                mTmpPoints = new float[12];
             }
             //noinspection deprecation
             recordingCanvas.getMatrix(mTmpMatrix);
-            mTmpPoints[0] = mBounds.width() * mDisplacement;
-            mTmpPoints[1] = mDistance * mBounds.height();
-            mTmpPoints[2] = mTmpPoints[0];
-            mTmpPoints[3] = 0;
+
+            mTmpPoints[0] = 0;
+            mTmpPoints[1] = 0; // top-left
+            mTmpPoints[2] = mWidth;
+            mTmpPoints[3] = 0; // top-right
+            mTmpPoints[4] = mWidth;
+            mTmpPoints[5] = mHeight; // bottom-right
+            mTmpPoints[6] = 0;
+            mTmpPoints[7] = mHeight; // bottom-left
+            mTmpPoints[8] = mWidth * mDisplacement;
+            mTmpPoints[9] = 0; // drag start point
+            mTmpPoints[10] = mWidth * mDisplacement;
+            mTmpPoints[11] = mHeight * mDistance; // drag point
             mTmpMatrix.mapPoints(mTmpPoints);
-            float x = mTmpPoints[0] - mTmpPoints[2];
-            float y = mTmpPoints[1] - mTmpPoints[3];
 
             RenderNode renderNode = recordingCanvas.mNode;
 
-            // TODO: use stretchy RenderEffect and use internal API when it is ready
-            // TODO: wrap existing RenderEffect
-            renderNode.setRenderEffect(RenderEffect.createOffsetEffect(x, y));
+            float left = renderNode.getLeft()
+                    + min(mTmpPoints[0], mTmpPoints[2], mTmpPoints[4], mTmpPoints[6]);
+            float top = renderNode.getTop()
+                    + min(mTmpPoints[1], mTmpPoints[3], mTmpPoints[5], mTmpPoints[7]);
+            float right = renderNode.getLeft()
+                    + max(mTmpPoints[0], mTmpPoints[2], mTmpPoints[4], mTmpPoints[6]);
+            float bottom = renderNode.getTop()
+                    + max(mTmpPoints[1], mTmpPoints[3], mTmpPoints[5], mTmpPoints[7]);
+            // assume rotations of increments of 90 degrees
+            float x = mTmpPoints[10] - mTmpPoints[8];
+            float width = right - left;
+            float vecX = Math.max(-1f, Math.min(1f, x / width));
+            float y = mTmpPoints[11] - mTmpPoints[9];
+            float height = bottom - top;
+            float vecY = Math.max(-1f, Math.min(1f, y / height));
+            renderNode.stretch(
+                    left,
+                    top,
+                    right,
+                    bottom,
+                    vecX * mStretchIntensity,
+                    vecY * mStretchIntensity,
+                    // TODO (njawad/mount) figure out proper stretch distance from UX
+                    //  for now leverage placeholder logic if no stretch distance is provided to
+                    //  consume the displacement ratio times the minimum of the width or height
+                    mStretchDistance > 0 ? mStretchDistance :
+                            (mDisplacement * Math.min(mWidth, mHeight))
+            );
         }
 
         boolean oneLastFrame = false;
@@ -548,6 +605,18 @@
         return mState != STATE_IDLE || oneLastFrame;
     }
 
+    private float min(float f1, float f2, float f3, float f4) {
+        float min = Math.min(f1, f2);
+        min = Math.min(min, f3);
+        return Math.min(min, f4);
+    }
+
+    private float max(float f1, float f2, float f3, float f4) {
+        float max = Math.max(f1, f2);
+        max = Math.max(max, f3);
+        return Math.max(max, f4);
+    }
+
     /**
      * Return the maximum height that the edge effect will be drawn at given the original
      * {@link #setSize(int, int) input size}.
diff --git a/core/java/android/widget/HorizontalScrollView.java b/core/java/android/widget/HorizontalScrollView.java
index 23915e0..bf552e2 100644
--- a/core/java/android/widget/HorizontalScrollView.java
+++ b/core/java/android/widget/HorizontalScrollView.java
@@ -249,6 +249,26 @@
     }
 
     /**
+     * API used for prototyping stretch effect parameters in framework sample apps
+     * @hide
+     */
+    public void setEdgeEffectIntensity(float intensity) {
+        mEdgeGlowLeft.setMaxStretchIntensity(intensity);
+        mEdgeGlowRight.setMaxStretchIntensity(intensity);
+        invalidate();
+    }
+
+    /**
+     * API used for prototyping stretch effect parameters in the framework sample apps
+     * @hide
+     */
+    public void setStretchDistance(float distance) {
+        mEdgeGlowLeft.setStretchDistance(distance);
+        mEdgeGlowRight.setStretchDistance(distance);
+        invalidate();
+    }
+
+    /**
      * Sets the right edge effect color.
      *
      * @param color The color for the right edge effect.
diff --git a/core/java/android/widget/ScrollView.java b/core/java/android/widget/ScrollView.java
index 65f3da7..3006729 100644
--- a/core/java/android/widget/ScrollView.java
+++ b/core/java/android/widget/ScrollView.java
@@ -281,6 +281,26 @@
     }
 
     /**
+     * API used for prototyping stretch effect parameters in framework sample apps
+     * @hide
+     */
+    public void setEdgeEffectIntensity(float intensity) {
+        mEdgeGlowTop.setMaxStretchIntensity(intensity);
+        mEdgeGlowBottom.setMaxStretchIntensity(intensity);
+        invalidate();
+    }
+
+    /**
+     * API used for prototyping stretch effect parameters in the framework sample apps
+     * @hide
+     */
+    public void setStretchDistance(float distance) {
+        mEdgeGlowTop.setStretchDistance(distance);
+        mEdgeGlowBottom.setStretchDistance(distance);
+        invalidate();
+    }
+
+    /**
      * Sets the bottom edge effect color.
      *
      * @param color The color for the bottom edge effect.
diff --git a/core/java/android/window/TransitionFilter.java b/core/java/android/window/TransitionFilter.java
index 4421f06..141f47b 100644
--- a/core/java/android/window/TransitionFilter.java
+++ b/core/java/android/window/TransitionFilter.java
@@ -139,8 +139,8 @@
         boolean matches(@NonNull TransitionInfo info) {
             for (int i = info.getChanges().size() - 1; i >= 0; --i) {
                 final TransitionInfo.Change change = info.getChanges().get(i);
-                if (change.getParent() != null) {
-                    // Only look at the top animating windows.
+                if (!TransitionInfo.isIndependent(change, info)) {
+                    // Only look at independent animating windows.
                     continue;
                 }
                 if (mActivityType != ACTIVITY_TYPE_UNDEFINED) {
diff --git a/core/java/android/window/TransitionInfo.java b/core/java/android/window/TransitionInfo.java
index d1d49b6..499ce25 100644
--- a/core/java/android/window/TransitionInfo.java
+++ b/core/java/android/window/TransitionInfo.java
@@ -246,6 +246,33 @@
         return sb.toString();
     }
 
+    /**
+     * Indication that `change` is independent of parents (ie. it has a different type of
+     * transition vs. "going along for the ride")
+     */
+    public static boolean isIndependent(TransitionInfo.Change change, TransitionInfo info) {
+        // If the change has no parent (it is root), then it is independent
+        if (change.getParent() == null) return true;
+
+        // non-visibility changes will just be folded into the parent change, so they aren't
+        // independent either.
+        if (change.getMode() == TRANSIT_CHANGE) return false;
+
+        TransitionInfo.Change parentChg = info.getChange(change.getParent());
+        while (parentChg != null) {
+            // If the parent is a visibility change, it will include the results of all child
+            // changes into itself, so none of its children can be independent.
+            if (parentChg.getMode() != TRANSIT_CHANGE) return false;
+
+            // If there are no more parents left, then all the parents, so far, have not been
+            // visibility changes which means this change is indpendent.
+            if (parentChg.getParent() == null) return true;
+
+            parentChg = info.getChange(parentChg.getParent());
+        }
+        return false;
+    }
+
     /** Represents the change a WindowContainer undergoes during a transition */
     public static final class Change implements Parcelable {
         private final WindowContainerToken mContainer;
diff --git a/core/java/com/android/internal/graphics/palette/WuQuantizer.java b/core/java/com/android/internal/graphics/palette/WuQuantizer.java
index 01e45f6..66206bf 100644
--- a/core/java/com/android/internal/graphics/palette/WuQuantizer.java
+++ b/core/java/com/android/internal/graphics/palette/WuQuantizer.java
@@ -16,7 +16,6 @@
 
 package com.android.internal.graphics.palette;
 
-
 import java.util.ArrayList;
 import java.util.List;
 
@@ -120,7 +119,11 @@
             }
         }
 
-        for (k = 0; k < mMaxColors; ++k) {
+        // If extraction is run on a set of pixels whose count is less than the
+        // number of max colors, then colors.length < max colors, and accesses
+        // to colors[index] inside the for loop throw an ArrayOutOfBoundsException.
+        int numColorsToCreate = (int) Math.min(mMaxColors, colors.length);
+        for (k = 0; k < numColorsToCreate; ++k) {
             weight = getVolume(cube[k], mWt);
             if (weight > 0) {
                 red = (int) (getVolume(cube[k], mMr) / weight);
diff --git a/core/java/com/android/internal/inputmethod/CallbackUtils.java b/core/java/com/android/internal/inputmethod/CallbackUtils.java
index 2113173..3958b9e 100644
--- a/core/java/com/android/internal/inputmethod/CallbackUtils.java
+++ b/core/java/com/android/internal/inputmethod/CallbackUtils.java
@@ -225,4 +225,31 @@
             callback.onResult();
         } catch (RemoteException ignored) { }
     }
+
+    /**
+     * A utility method using given {@link IIInputContentUriTokenResultCallback} to callback the
+     * result.
+     *
+     * @param callback {@link IIInputContentUriTokenResultCallback} to be called back.
+     * @param resultSupplier the supplier from which the result is provided.
+     */
+    public static void onResult(@NonNull IIInputContentUriTokenResultCallback callback,
+            @NonNull Supplier<IInputContentUriToken> resultSupplier) {
+        IInputContentUriToken result = null;
+        Throwable exception = null;
+
+        try {
+            result = resultSupplier.get();
+        } catch (Throwable throwable) {
+            exception = throwable;
+        }
+
+        try {
+            if (exception != null) {
+                callback.onError(ThrowableHolder.of(exception));
+                return;
+            }
+            callback.onResult(result);
+        } catch (RemoteException ignored) { }
+    }
 }
diff --git a/core/java/com/android/internal/inputmethod/Completable.java b/core/java/com/android/internal/inputmethod/Completable.java
index d6a4663..ba3a343 100644
--- a/core/java/com/android/internal/inputmethod/Completable.java
+++ b/core/java/com/android/internal/inputmethod/Completable.java
@@ -444,6 +444,13 @@
     }
 
     /**
+     * @return an instance of {@link Completable.IInputContentUriToken}.
+     */
+    public static Completable.IInputContentUriToken createIInputContentUriToken() {
+        return new Completable.IInputContentUriToken();
+    }
+
+    /**
      * @return an instance of {@link Completable.Void}.
      */
     public static Completable.Void createVoid() {
@@ -497,6 +504,12 @@
             extends Values<List<android.view.inputmethod.InputMethodInfo>> { }
 
     /**
+     * Completable object of {@link IInputContentUriToken>}.
+     */
+    public static final class IInputContentUriToken
+            extends Values<com.android.internal.inputmethod.IInputContentUriToken> { }
+
+    /**
      * Await the result by the {@link Completable.Values}.
      *
      * @return the result once {@link ValueBase#onComplete()}.
diff --git a/core/java/com/android/internal/inputmethod/IIInputContentUriTokenResultCallback.aidl b/core/java/com/android/internal/inputmethod/IIInputContentUriTokenResultCallback.aidl
new file mode 100644
index 0000000..2e6d224
--- /dev/null
+++ b/core/java/com/android/internal/inputmethod/IIInputContentUriTokenResultCallback.aidl
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.internal.inputmethod;
+
+import com.android.internal.inputmethod.IInputContentUriToken;
+import com.android.internal.inputmethod.ThrowableHolder;
+
+oneway interface IIInputContentUriTokenResultCallback {
+    void onResult(in IInputContentUriToken result);
+    void onError(in ThrowableHolder exception);
+}
\ No newline at end of file
diff --git a/core/java/com/android/internal/inputmethod/IInputMethodPrivilegedOperations.aidl b/core/java/com/android/internal/inputmethod/IInputMethodPrivilegedOperations.aidl
index f0e26cf..e4dd7b0 100644
--- a/core/java/com/android/internal/inputmethod/IInputMethodPrivilegedOperations.aidl
+++ b/core/java/com/android/internal/inputmethod/IInputMethodPrivilegedOperations.aidl
@@ -19,25 +19,31 @@
 import android.net.Uri;
 import android.view.inputmethod.InputMethodSubtype;
 
+import com.android.internal.inputmethod.IBooleanResultCallback;
 import com.android.internal.inputmethod.IInputContentUriToken;
+import com.android.internal.inputmethod.IIInputContentUriTokenResultCallback;
+import com.android.internal.inputmethod.IVoidResultCallback;
 
 /**
  * Defines priviledged operations that only the current IME is allowed to call.
  * Actual operations are implemented and handled by InputMethodManagerService.
  */
-interface IInputMethodPrivilegedOperations {
-    void setImeWindowStatus(int vis, int backDisposition);
-    void reportStartInput(in IBinder startInputToken);
-    IInputContentUriToken createInputContentUriToken(in Uri contentUri, in String packageName);
-    void reportFullscreenMode(boolean fullscreen);
-    void setInputMethod(String id);
-    void setInputMethodAndSubtype(String id, in InputMethodSubtype subtype);
-    void hideMySoftInput(int flags);
-    void showMySoftInput(int flags);
-    void updateStatusIcon(String packageName, int iconId);
-    boolean switchToPreviousInputMethod();
-    boolean switchToNextInputMethod(boolean onlyCurrentIme);
-    boolean shouldOfferSwitchingToNextInputMethod();
-    void notifyUserAction();
-    void applyImeVisibility(IBinder showOrHideInputToken, boolean setVisible);
+oneway interface IInputMethodPrivilegedOperations {
+    void setImeWindowStatus(int vis, int backDisposition, in IVoidResultCallback resultCallback);
+    void reportStartInput(in IBinder startInputToken, in IVoidResultCallback resultCallback);
+    void createInputContentUriToken(in Uri contentUri, in String packageName,
+            in IIInputContentUriTokenResultCallback resultCallback);
+    void reportFullscreenMode(boolean fullscreen, in IVoidResultCallback resultCallback);
+    void setInputMethod(String id, in IVoidResultCallback resultCallback);
+    void setInputMethodAndSubtype(String id, in InputMethodSubtype subtype,
+            in IVoidResultCallback resultCallback);
+    void hideMySoftInput(int flags, in IVoidResultCallback resultCallback);
+    void showMySoftInput(int flags, in IVoidResultCallback resultCallback);
+    void updateStatusIcon(String packageName, int iconId, in IVoidResultCallback resultCallback);
+    void switchToPreviousInputMethod(in IBooleanResultCallback resultCallback);
+    void switchToNextInputMethod(boolean onlyCurrentIme, in IBooleanResultCallback resultCallback);
+    void shouldOfferSwitchingToNextInputMethod(in IBooleanResultCallback resultCallback);
+    void notifyUserAction(in IVoidResultCallback resultCallback);
+    void applyImeVisibility(IBinder showOrHideInputToken, boolean setVisible,
+            in IVoidResultCallback resultCallback);
 }
diff --git a/core/java/com/android/internal/inputmethod/InputMethodPrivilegedOperations.java b/core/java/com/android/internal/inputmethod/InputMethodPrivilegedOperations.java
index d6730e8..04cf3f3 100644
--- a/core/java/com/android/internal/inputmethod/InputMethodPrivilegedOperations.java
+++ b/core/java/com/android/internal/inputmethod/InputMethodPrivilegedOperations.java
@@ -95,7 +95,8 @@
     }
 
     /**
-     * Calls {@link IInputMethodPrivilegedOperations#setImeWindowStatus(int, int)}.
+     * Calls {@link IInputMethodPrivilegedOperations#setImeWindowStatus(int, int,
+     * IVoidResultCallback)}.
      *
      * @param vis visibility flags
      * @param backDisposition disposition flags
@@ -112,14 +113,17 @@
             return;
         }
         try {
-            ops.setImeWindowStatus(vis, backDisposition);
+            final Completable.Void value = Completable.createVoid();
+            ops.setImeWindowStatus(vis, backDisposition, ResultCallbacks.of(value));
+            Completable.getResult(value);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
     }
 
     /**
-     * Calls {@link IInputMethodPrivilegedOperations#reportStartInput(IBinder)}.
+     * Calls {@link IInputMethodPrivilegedOperations#reportStartInput(IBinder,
+     * IVoidResultCallback)}.
      *
      * @param startInputToken {@link IBinder} token to distinguish startInput session
      */
@@ -130,14 +134,17 @@
             return;
         }
         try {
-            ops.reportStartInput(startInputToken);
+            final Completable.Void value = Completable.createVoid();
+            ops.reportStartInput(startInputToken, ResultCallbacks.of(value));
+            Completable.getResult(value);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
     }
 
     /**
-     * Calls {@link IInputMethodPrivilegedOperations#createInputContentUriToken(Uri, String)}.
+     * Calls {@link IInputMethodPrivilegedOperations#createInputContentUriToken(Uri, String,
+     * IIInputContentUriTokenResultCallback)}.
      *
      * @param contentUri Content URI to which a temporary read permission should be granted
      * @param packageName Indicates what package needs to have a temporary read permission
@@ -151,7 +158,10 @@
             return null;
         }
         try {
-            return ops.createInputContentUriToken(contentUri, packageName);
+            final Completable.IInputContentUriToken value =
+                    Completable.createIInputContentUriToken();
+            ops.createInputContentUriToken(contentUri, packageName, ResultCallbacks.of(value));
+            return Completable.getResult(value);
         } catch (RemoteException e) {
             // For historical reasons, this error was silently ignored.
             // Note that the caller already logs error so we do not need additional Log.e() here.
@@ -161,7 +171,8 @@
     }
 
     /**
-     * Calls {@link IInputMethodPrivilegedOperations#reportFullscreenMode(boolean)}.
+     * Calls {@link IInputMethodPrivilegedOperations#reportFullscreenMode(boolean,
+     * IVoidResultCallback)}.
      *
      * @param fullscreen {@code true} if the IME enters full screen mode
      */
@@ -172,14 +183,17 @@
             return;
         }
         try {
-            ops.reportFullscreenMode(fullscreen);
+            final Completable.Void value = Completable.createVoid();
+            ops.reportFullscreenMode(fullscreen, ResultCallbacks.of(value));
+            Completable.getResult(value);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
     }
 
     /**
-     * Calls {@link IInputMethodPrivilegedOperations#updateStatusIcon(String, int)}.
+     * Calls {@link IInputMethodPrivilegedOperations#updateStatusIcon(String, int,
+     * IVoidResultCallback)}.
      *
      * @param packageName package name from which the status icon should be loaded
      * @param iconResId resource ID of the icon to be loaded
@@ -191,14 +205,16 @@
             return;
         }
         try {
-            ops.updateStatusIcon(packageName, iconResId);
+            final Completable.Void value = Completable.createVoid();
+            ops.updateStatusIcon(packageName, iconResId, ResultCallbacks.of(value));
+            Completable.getResult(value);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
     }
 
     /**
-     * Calls {@link IInputMethodPrivilegedOperations#setInputMethod(String)}.
+     * Calls {@link IInputMethodPrivilegedOperations#setInputMethod(String, IVoidResultCallback)}.
      *
      * @param id IME ID of the IME to switch to
      * @see android.view.inputmethod.InputMethodInfo#getId()
@@ -210,7 +226,9 @@
             return;
         }
         try {
-            ops.setInputMethod(id);
+            final Completable.Void value = Completable.createVoid();
+            ops.setInputMethod(id, ResultCallbacks.of(value));
+            Completable.getResult(value);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
@@ -218,7 +236,7 @@
 
     /**
      * Calls {@link IInputMethodPrivilegedOperations#setInputMethodAndSubtype(String,
-     * InputMethodSubtype)}
+     * InputMethodSubtype, IVoidResultCallback)}
      *
      * @param id IME ID of the IME to switch to
      * @param subtype {@link InputMethodSubtype} to switch to
@@ -231,14 +249,16 @@
             return;
         }
         try {
-            ops.setInputMethodAndSubtype(id, subtype);
+            final Completable.Void value = Completable.createVoid();
+            ops.setInputMethodAndSubtype(id, subtype, ResultCallbacks.of(value));
+            Completable.getResult(value);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
     }
 
     /**
-     * Calls {@link IInputMethodPrivilegedOperations#hideMySoftInput(int)}
+     * Calls {@link IInputMethodPrivilegedOperations#hideMySoftInput(int, IVoidResultCallback)}
      *
      * @param flags additional operating flags
      * @see android.view.inputmethod.InputMethodManager#HIDE_IMPLICIT_ONLY
@@ -251,14 +271,16 @@
             return;
         }
         try {
-            ops.hideMySoftInput(flags);
+            final Completable.Void value = Completable.createVoid();
+            ops.hideMySoftInput(flags, ResultCallbacks.of(value));
+            Completable.getResult(value);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
     }
 
     /**
-     * Calls {@link IInputMethodPrivilegedOperations#showMySoftInput(int)}
+     * Calls {@link IInputMethodPrivilegedOperations#showMySoftInput(int, IVoidResultCallback)}
      *
      * @param flags additional operating flags
      * @see android.view.inputmethod.InputMethodManager#SHOW_IMPLICIT
@@ -271,14 +293,17 @@
             return;
         }
         try {
-            ops.showMySoftInput(flags);
+            final Completable.Void value = Completable.createVoid();
+            ops.showMySoftInput(flags, ResultCallbacks.of(value));
+            Completable.getResult(value);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
     }
 
     /**
-     * Calls {@link IInputMethodPrivilegedOperations#switchToPreviousInputMethod()}
+     * Calls {@link IInputMethodPrivilegedOperations#switchToPreviousInputMethod(
+     * IBooleanResultCallback)}
      *
      * @return {@code true} if handled
      */
@@ -289,14 +314,17 @@
             return false;
         }
         try {
-            return ops.switchToPreviousInputMethod();
+            final Completable.Boolean value = Completable.createBoolean();
+            ops.switchToPreviousInputMethod(ResultCallbacks.of(value));
+            return Completable.getResult(value);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
     }
 
     /**
-     * Calls {@link IInputMethodPrivilegedOperations#switchToNextInputMethod(boolean)}
+     * Calls {@link IInputMethodPrivilegedOperations#switchToNextInputMethod(boolean,
+     * IBooleanResultCallback)}
      *
      * @param onlyCurrentIme {@code true} to switch to a {@link InputMethodSubtype} within the same
      *                       IME
@@ -309,14 +337,17 @@
             return false;
         }
         try {
-            return ops.switchToNextInputMethod(onlyCurrentIme);
+            final Completable.Boolean value = Completable.createBoolean();
+            ops.switchToNextInputMethod(onlyCurrentIme, ResultCallbacks.of(value));
+            return Completable.getResult(value);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
     }
 
     /**
-     * Calls {@link IInputMethodPrivilegedOperations#shouldOfferSwitchingToNextInputMethod()}
+     * Calls {@link IInputMethodPrivilegedOperations#shouldOfferSwitchingToNextInputMethod(
+     * IBooleanResultCallback)}
      *
      * @return {@code true} if the IEM should offer a way to globally switch IME
      */
@@ -327,14 +358,16 @@
             return false;
         }
         try {
-            return ops.shouldOfferSwitchingToNextInputMethod();
+            final Completable.Boolean value = Completable.createBoolean();
+            ops.shouldOfferSwitchingToNextInputMethod(ResultCallbacks.of(value));
+            return Completable.getResult(value);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
     }
 
     /**
-     * Calls {@link IInputMethodPrivilegedOperations#notifyUserAction()}
+     * Calls {@link IInputMethodPrivilegedOperations#notifyUserAction(IVoidResultCallback)}
      */
     @AnyThread
     public void notifyUserAction() {
@@ -343,14 +376,17 @@
             return;
         }
         try {
-            ops.notifyUserAction();
+            final Completable.Void value = Completable.createVoid();
+            ops.notifyUserAction(ResultCallbacks.of(value));
+            Completable.getResult(value);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
     }
 
     /**
-     * Calls {@link IInputMethodPrivilegedOperations#applyImeVisibility(IBinder, boolean)}.
+     * Calls {@link IInputMethodPrivilegedOperations#applyImeVisibility(IBinder, boolean,
+     * IVoidResultCallback)}.
      *
      * @param showOrHideInputToken placeholder token that maps to window requesting
      *        {@link android.view.inputmethod.InputMethodManager#showSoftInput(View, int)} or
@@ -365,7 +401,9 @@
             return;
         }
         try {
-            ops.applyImeVisibility(showOrHideInputToken, setVisible);
+            final Completable.Void value = Completable.createVoid();
+            ops.applyImeVisibility(showOrHideInputToken, setVisible, ResultCallbacks.of(value));
+            Completable.getResult(value);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
diff --git a/core/java/com/android/internal/inputmethod/ResultCallbacks.java b/core/java/com/android/internal/inputmethod/ResultCallbacks.java
index 2a48c1f..c56ed2d 100644
--- a/core/java/com/android/internal/inputmethod/ResultCallbacks.java
+++ b/core/java/com/android/internal/inputmethod/ResultCallbacks.java
@@ -387,4 +387,41 @@
             }
         };
     }
+
+    /**
+     * Creates {@link IIInputContentUriTokenResultCallback.Stub} that is to set
+     * {@link Completable.IInputContentUriToken} when receiving the result.
+     *
+     * @param value {@link Completable.IInputContentUriToken} to be set when receiving the result.
+     * @return {@link IIInputContentUriTokenResultCallback.Stub} that can be passed as a binder IPC
+     * parameter.
+     */
+    @AnyThread
+    public static IIInputContentUriTokenResultCallback.Stub of(
+            @NonNull Completable.IInputContentUriToken value) {
+        final AtomicReference<WeakReference<Completable.IInputContentUriToken>>
+                atomicRef = new AtomicReference<>(new WeakReference<>(value));
+
+        return new IIInputContentUriTokenResultCallback.Stub() {
+            @BinderThread
+            @Override
+            public void onResult(IInputContentUriToken result) {
+                final Completable.IInputContentUriToken value = unwrap(atomicRef);
+                if (value == null) {
+                    return;
+                }
+                value.onComplete(result);
+            }
+
+            @BinderThread
+            @Override
+            public void onError(ThrowableHolder throwableHolder) {
+                final Completable.IInputContentUriToken value = unwrap(atomicRef);
+                if (value == null) {
+                    return;
+                }
+                value.onError(throwableHolder);
+            }
+        };
+    }
 }
diff --git a/core/java/com/android/internal/jank/FrameTracker.java b/core/java/com/android/internal/jank/FrameTracker.java
index 33ee8f0..db0b48e 100644
--- a/core/java/com/android/internal/jank/FrameTracker.java
+++ b/core/java/com/android/internal/jank/FrameTracker.java
@@ -327,11 +327,8 @@
             }
             if (info.surfaceControlCallbackFired) {
                 totalFramesCount++;
-
-                // Only count missed frames if it's not stuffed.
                 if ((info.jankType & PREDICTION_ERROR) != 0
-                        || ((info.jankType & JANK_APP_DEADLINE_MISSED) != 0
-                                && (info.jankType & BUFFER_STUFFING) == 0)) {
+                        || ((info.jankType & JANK_APP_DEADLINE_MISSED) != 0)) {
                     Log.w(TAG, "Missed App frame:" + info.jankType);
                     missedAppFramesCount++;
                 }
diff --git a/core/java/com/android/internal/os/Zygote.java b/core/java/com/android/internal/os/Zygote.java
index 6b1d408..8b5a62a 100644
--- a/core/java/com/android/internal/os/Zygote.java
+++ b/core/java/com/android/internal/os/Zygote.java
@@ -202,7 +202,7 @@
     public static final String PKG_DATA_INFO_MAP = "--pkg-data-info-map";
 
     /** List of allowlisted packages and its app data info: volume uuid and inode. */
-    public static final String WHITELISTED_DATA_INFO_MAP = "--whitelisted-data-info-map";
+    public static final String ALLOWLISTED_DATA_INFO_MAP = "--allowlisted-data-info-map";
 
     /** Bind mount app storage dirs to lower fs not via fuse */
     public static final String BIND_MOUNT_APP_STORAGE_DIRS = "--bind-mount-storage-dirs";
@@ -324,7 +324,7 @@
      * @param isTopApp true if the process is for top (high priority) application.
      * @param pkgDataInfoList A list that stores related packages and its app data
      * info: volume uuid and inode.
-     * @param whitelistedDataInfoList Like pkgDataInfoList, but it's for allowlisted apps.
+     * @param allowlistedDataInfoList Like pkgDataInfoList, but it's for allowlisted apps.
      * @param bindMountAppDataDirs  True if the zygote needs to mount data dirs.
      * @param bindMountAppStorageDirs  True if the zygote needs to mount storage dirs.
      *
@@ -334,14 +334,14 @@
     static int forkAndSpecialize(int uid, int gid, int[] gids, int runtimeFlags,
             int[][] rlimits, int mountExternal, String seInfo, String niceName, int[] fdsToClose,
             int[] fdsToIgnore, boolean startChildZygote, String instructionSet, String appDataDir,
-            boolean isTopApp, String[] pkgDataInfoList, String[] whitelistedDataInfoList,
+            boolean isTopApp, String[] pkgDataInfoList, String[] allowlistedDataInfoList,
             boolean bindMountAppDataDirs, boolean bindMountAppStorageDirs) {
         ZygoteHooks.preFork();
 
         int pid = nativeForkAndSpecialize(
                 uid, gid, gids, runtimeFlags, rlimits, mountExternal, seInfo, niceName, fdsToClose,
                 fdsToIgnore, startChildZygote, instructionSet, appDataDir, isTopApp,
-                pkgDataInfoList, whitelistedDataInfoList, bindMountAppDataDirs,
+                pkgDataInfoList, allowlistedDataInfoList, bindMountAppDataDirs,
                 bindMountAppStorageDirs);
         if (pid == 0) {
             // Note that this event ends at the end of handleChildProc,
@@ -364,7 +364,7 @@
             int runtimeFlags, int[][] rlimits, int mountExternal, String seInfo, String niceName,
             int[] fdsToClose, int[] fdsToIgnore, boolean startChildZygote, String instructionSet,
             String appDataDir, boolean isTopApp, String[] pkgDataInfoList,
-            String[] whitelistedDataInfoList, boolean bindMountAppDataDirs,
+            String[] allowlistedDataInfoList, boolean bindMountAppDataDirs,
             boolean bindMountAppStorageDirs);
 
     /**
@@ -392,18 +392,18 @@
      * volume uuid and CE dir inode. For example, pkgDataInfoList = [app_a_pkg_name,
      * app_a_data_volume_uuid, app_a_ce_inode, app_b_pkg_name, app_b_data_volume_uuid,
      * app_b_ce_inode, ...];
-     * @param whitelistedDataInfoList Like pkgDataInfoList, but it's for allowlisted apps.
+     * @param allowlistedDataInfoList Like pkgDataInfoList, but it's for allowlisted apps.
      * @param bindMountAppDataDirs  True if the zygote needs to mount data dirs.
      * @param bindMountAppStorageDirs  True if the zygote needs to mount storage dirs.
      */
     private static void specializeAppProcess(int uid, int gid, int[] gids, int runtimeFlags,
             int[][] rlimits, int mountExternal, String seInfo, String niceName,
             boolean startChildZygote, String instructionSet, String appDataDir, boolean isTopApp,
-            String[] pkgDataInfoList, String[] whitelistedDataInfoList,
+            String[] pkgDataInfoList, String[] allowlistedDataInfoList,
             boolean bindMountAppDataDirs, boolean bindMountAppStorageDirs) {
         nativeSpecializeAppProcess(uid, gid, gids, runtimeFlags, rlimits, mountExternal, seInfo,
                 niceName, startChildZygote, instructionSet, appDataDir, isTopApp,
-                pkgDataInfoList, whitelistedDataInfoList,
+                pkgDataInfoList, allowlistedDataInfoList,
                 bindMountAppDataDirs, bindMountAppStorageDirs);
 
         // Note that this event ends at the end of handleChildProc.
@@ -428,7 +428,7 @@
     private static native void nativeSpecializeAppProcess(int uid, int gid, int[] gids,
             int runtimeFlags, int[][] rlimits, int mountExternal, String seInfo, String niceName,
             boolean startChildZygote, String instructionSet, String appDataDir, boolean isTopApp,
-            String[] pkgDataInfoList, String[] whitelistedDataInfoList,
+            String[] pkgDataInfoList, String[] allowlistedDataInfoList,
             boolean bindMountAppDataDirs, boolean bindMountAppStorageDirs);
 
     /**
@@ -807,7 +807,7 @@
                                  args.mRuntimeFlags, rlimits, args.mMountExternal,
                                  args.mSeInfo, args.mNiceName, args.mStartChildZygote,
                                  args.mInstructionSet, args.mAppDataDir, args.mIsTopApp,
-                                 args.mPkgDataInfoList, args.mWhitelistedDataInfoList,
+                                 args.mPkgDataInfoList, args.mAllowlistedDataInfoList,
                                  args.mBindMountAppDataDirs, args.mBindMountAppStorageDirs);
 
             Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER);
diff --git a/core/java/com/android/internal/os/ZygoteArguments.java b/core/java/com/android/internal/os/ZygoteArguments.java
index 65b454d..ef83982 100644
--- a/core/java/com/android/internal/os/ZygoteArguments.java
+++ b/core/java/com/android/internal/os/ZygoteArguments.java
@@ -230,7 +230,7 @@
      * A list that stores all allowlisted app data info: volume uuid and inode.
      * Null if it does need to do app data isolation.
      */
-    String[] mWhitelistedDataInfoList;
+    String[] mAllowlistedDataInfoList;
 
     /**
      * @see Zygote#BIND_MOUNT_APP_STORAGE_DIRS
@@ -475,8 +475,8 @@
                 }
             } else if (arg.startsWith(Zygote.PKG_DATA_INFO_MAP)) {
                 mPkgDataInfoList = getAssignmentList(arg);
-            } else if (arg.startsWith(Zygote.WHITELISTED_DATA_INFO_MAP)) {
-                mWhitelistedDataInfoList = getAssignmentList(arg);
+            } else if (arg.startsWith(Zygote.ALLOWLISTED_DATA_INFO_MAP)) {
+                mAllowlistedDataInfoList = getAssignmentList(arg);
             } else if (arg.equals(Zygote.BIND_MOUNT_APP_STORAGE_DIRS)) {
                 mBindMountAppStorageDirs = true;
             } else if (arg.equals(Zygote.BIND_MOUNT_APP_DATA_DIRS)) {
diff --git a/core/java/com/android/internal/os/ZygoteConnection.java b/core/java/com/android/internal/os/ZygoteConnection.java
index 37c7590..1673362 100644
--- a/core/java/com/android/internal/os/ZygoteConnection.java
+++ b/core/java/com/android/internal/os/ZygoteConnection.java
@@ -265,7 +265,7 @@
                             fdsToClose, fdsToIgnore, parsedArgs.mStartChildZygote,
                             parsedArgs.mInstructionSet, parsedArgs.mAppDataDir,
                             parsedArgs.mIsTopApp, parsedArgs.mPkgDataInfoList,
-                            parsedArgs.mWhitelistedDataInfoList, parsedArgs.mBindMountAppDataDirs,
+                            parsedArgs.mAllowlistedDataInfoList, parsedArgs.mBindMountAppDataDirs,
                             parsedArgs.mBindMountAppStorageDirs);
 
                     try {
diff --git a/core/jni/OWNERS b/core/jni/OWNERS
index 35d1d7b..f6629fd 100644
--- a/core/jni/OWNERS
+++ b/core/jni/OWNERS
@@ -43,6 +43,7 @@
 per-file EphemeralStorage* = file:platform/system/libhwbinder:/OWNERS
 
 per-file *Zygote* = file:/ZYGOTE_OWNERS
+per-file fd_utils.* = file:/ZYGOTE_OWNERS
 per-file Android.bp = file:platform/build/soong:/OWNERS
 per-file android_animation_* = file:/core/java/android/animation/OWNERS
 per-file android_app_admin_* = file:/core/java/android/app/admin/OWNERS
diff --git a/core/jni/com_android_internal_os_Zygote.cpp b/core/jni/com_android_internal_os_Zygote.cpp
index bcfb06b..836074f 100644
--- a/core/jni/com_android_internal_os_Zygote.cpp
+++ b/core/jni/com_android_internal_os_Zygote.cpp
@@ -1400,16 +1400,15 @@
 }
 
 static void isolateAppData(JNIEnv* env, jobjectArray pkg_data_info_list,
-    jobjectArray whitelisted_data_info_list, uid_t uid, const char* process_name,
-    jstring managed_nice_name, fail_fn_t fail_fn) {
+                           jobjectArray allowlisted_data_info_list, uid_t uid,
+                           const char* process_name, jstring managed_nice_name, fail_fn_t fail_fn) {
+    std::vector<std::string> merged_data_info_list;
+    insertPackagesToMergedList(env, merged_data_info_list, pkg_data_info_list, process_name,
+                               managed_nice_name, fail_fn);
+    insertPackagesToMergedList(env, merged_data_info_list, allowlisted_data_info_list, process_name,
+                               managed_nice_name, fail_fn);
 
-  std::vector<std::string> merged_data_info_list;
-  insertPackagesToMergedList(env, merged_data_info_list, pkg_data_info_list,
-          process_name, managed_nice_name, fail_fn);
-  insertPackagesToMergedList(env, merged_data_info_list, whitelisted_data_info_list,
-          process_name, managed_nice_name, fail_fn);
-
-  isolateAppData(env, merged_data_info_list, uid, process_name, managed_nice_name, fail_fn);
+    isolateAppData(env, merged_data_info_list, uid, process_name, managed_nice_name, fail_fn);
 }
 
 /**
@@ -1510,240 +1509,242 @@
 }
 
 // Utility routine to specialize a zygote child process.
-static void SpecializeCommon(JNIEnv* env, uid_t uid, gid_t gid, jintArray gids,
-                             jint runtime_flags, jobjectArray rlimits,
-                             jlong permitted_capabilities, jlong effective_capabilities,
-                             jint mount_external, jstring managed_se_info,
-                             jstring managed_nice_name, bool is_system_server,
-                             bool is_child_zygote, jstring managed_instruction_set,
-                             jstring managed_app_data_dir, bool is_top_app,
-                             jobjectArray pkg_data_info_list,
-                             jobjectArray whitelisted_data_info_list,
-                             bool mount_data_dirs, bool mount_storage_dirs) {
-  const char* process_name = is_system_server ? "system_server" : "zygote";
-  auto fail_fn = std::bind(ZygoteFailure, env, process_name, managed_nice_name, _1);
-  auto extract_fn = std::bind(ExtractJString, env, process_name, managed_nice_name, _1);
+static void SpecializeCommon(JNIEnv* env, uid_t uid, gid_t gid, jintArray gids, jint runtime_flags,
+                             jobjectArray rlimits, jlong permitted_capabilities,
+                             jlong effective_capabilities, jint mount_external,
+                             jstring managed_se_info, jstring managed_nice_name,
+                             bool is_system_server, bool is_child_zygote,
+                             jstring managed_instruction_set, jstring managed_app_data_dir,
+                             bool is_top_app, jobjectArray pkg_data_info_list,
+                             jobjectArray allowlisted_data_info_list, bool mount_data_dirs,
+                             bool mount_storage_dirs) {
+    const char* process_name = is_system_server ? "system_server" : "zygote";
+    auto fail_fn = std::bind(ZygoteFailure, env, process_name, managed_nice_name, _1);
+    auto extract_fn = std::bind(ExtractJString, env, process_name, managed_nice_name, _1);
 
-  auto se_info = extract_fn(managed_se_info);
-  auto nice_name = extract_fn(managed_nice_name);
-  auto instruction_set = extract_fn(managed_instruction_set);
-  auto app_data_dir = extract_fn(managed_app_data_dir);
+    auto se_info = extract_fn(managed_se_info);
+    auto nice_name = extract_fn(managed_nice_name);
+    auto instruction_set = extract_fn(managed_instruction_set);
+    auto app_data_dir = extract_fn(managed_app_data_dir);
 
-  // Keep capabilities across UID change, unless we're staying root.
-  if (uid != 0) {
-    EnableKeepCapabilities(fail_fn);
-  }
-
-  SetInheritable(permitted_capabilities, fail_fn);
-
-  DropCapabilitiesBoundingSet(fail_fn);
-
-  bool need_pre_initialize_native_bridge =
-      !is_system_server &&
-      instruction_set.has_value() &&
-      android::NativeBridgeAvailable() &&
-      // Native bridge may be already initialized if this
-      // is an app forked from app-zygote.
-      !android::NativeBridgeInitialized() &&
-      android::NeedsNativeBridge(instruction_set.value().c_str());
-
-  MountEmulatedStorage(uid, mount_external, need_pre_initialize_native_bridge, fail_fn);
-
-  // Make sure app is running in its own mount namespace before isolating its data directories.
-  ensureInAppMountNamespace(fail_fn);
-
-  // Sandbox data and jit profile directories by overlaying a tmpfs on those dirs and bind
-  // mount all related packages separately.
-  if (mount_data_dirs) {
-    isolateAppData(env, pkg_data_info_list, whitelisted_data_info_list,
-            uid, process_name, managed_nice_name, fail_fn);
-    isolateJitProfile(env, pkg_data_info_list, uid, process_name, managed_nice_name, fail_fn);
-  }
-  // MOUNT_EXTERNAL_INSTALLER, MOUNT_EXTERNAL_PASS_THROUGH, MOUNT_EXTERNAL_ANDROID_WRITABLE apps
-  // will have mount_storage_dirs == false here (set by ProcessList.needsStorageDataIsolation()),
-  // and hence they won't bind mount storage dirs.
-  if (mount_storage_dirs) {
-    BindMountStorageDirs(env, pkg_data_info_list, uid, process_name, managed_nice_name, fail_fn);
-  }
-
-  // If this zygote isn't root, it won't be able to create a process group,
-  // since the directory is owned by root.
-  if (!is_system_server && getuid() == 0) {
-    const int rc = createProcessGroup(uid, getpid());
-    if (rc == -EROFS) {
-      ALOGW("createProcessGroup failed, kernel missing CONFIG_CGROUP_CPUACCT?");
-    } else if (rc != 0) {
-      ALOGE("createProcessGroup(%d, %d) failed: %s", uid, /* pid= */ 0, strerror(-rc));
+    // Keep capabilities across UID change, unless we're staying root.
+    if (uid != 0) {
+        EnableKeepCapabilities(fail_fn);
     }
-  }
 
-  SetGids(env, gids, is_child_zygote, fail_fn);
-  SetRLimits(env, rlimits, fail_fn);
+    SetInheritable(permitted_capabilities, fail_fn);
 
-  if (need_pre_initialize_native_bridge) {
-    // Due to the logic behind need_pre_initialize_native_bridge we know that
-    // instruction_set contains a value.
-    android::PreInitializeNativeBridge(
-        app_data_dir.has_value() ? app_data_dir.value().c_str() : nullptr,
-        instruction_set.value().c_str());
-  }
+    DropCapabilitiesBoundingSet(fail_fn);
 
-  if (setresgid(gid, gid, gid) == -1) {
-    fail_fn(CREATE_ERROR("setresgid(%d) failed: %s", gid, strerror(errno)));
-  }
+    bool need_pre_initialize_native_bridge = !is_system_server && instruction_set.has_value() &&
+            android::NativeBridgeAvailable() &&
+            // Native bridge may be already initialized if this
+            // is an app forked from app-zygote.
+            !android::NativeBridgeInitialized() &&
+            android::NeedsNativeBridge(instruction_set.value().c_str());
 
-  // Must be called when the new process still has CAP_SYS_ADMIN, in this case,
-  // before changing uid from 0, which clears capabilities.  The other
-  // alternative is to call prctl(PR_SET_NO_NEW_PRIVS, 1) afterward, but that
-  // breaks SELinux domain transition (see b/71859146).  As the result,
-  // privileged syscalls used below still need to be accessible in app process.
-  SetUpSeccompFilter(uid, is_child_zygote);
+    MountEmulatedStorage(uid, mount_external, need_pre_initialize_native_bridge, fail_fn);
 
-  // Must be called before losing the permission to set scheduler policy.
-  SetSchedulerPolicy(fail_fn, is_top_app);
+    // Make sure app is running in its own mount namespace before isolating its data directories.
+    ensureInAppMountNamespace(fail_fn);
 
-  if (setresuid(uid, uid, uid) == -1) {
-    fail_fn(CREATE_ERROR("setresuid(%d) failed: %s", uid, strerror(errno)));
-  }
-
-  // The "dumpable" flag of a process, which controls core dump generation, is
-  // overwritten by the value in /proc/sys/fs/suid_dumpable when the effective
-  // user or group ID changes. See proc(5) for possible values. In most cases,
-  // the value is 0, so core dumps are disabled for zygote children. However,
-  // when running in a Chrome OS container, the value is already set to 2,
-  // which allows the external crash reporter to collect all core dumps. Since
-  // only system crashes are interested, core dump is disabled for app
-  // processes. This also ensures compliance with CTS.
-  int dumpable = prctl(PR_GET_DUMPABLE);
-  if (dumpable == -1) {
-    ALOGE("prctl(PR_GET_DUMPABLE) failed: %s", strerror(errno));
-    RuntimeAbort(env, __LINE__, "prctl(PR_GET_DUMPABLE) failed");
-  }
-
-  if (dumpable == 2 && uid >= AID_APP) {
-    if (prctl(PR_SET_DUMPABLE, 0, 0, 0, 0) == -1) {
-      ALOGE("prctl(PR_SET_DUMPABLE, 0) failed: %s", strerror(errno));
-      RuntimeAbort(env, __LINE__, "prctl(PR_SET_DUMPABLE, 0) failed");
+    // Sandbox data and jit profile directories by overlaying a tmpfs on those dirs and bind
+    // mount all related packages separately.
+    if (mount_data_dirs) {
+        isolateAppData(env, pkg_data_info_list, allowlisted_data_info_list, uid, process_name,
+                       managed_nice_name, fail_fn);
+        isolateJitProfile(env, pkg_data_info_list, uid, process_name, managed_nice_name, fail_fn);
     }
-  }
-
-  // Set process properties to enable debugging if required.
-  if ((runtime_flags & RuntimeFlags::DEBUG_ENABLE_JDWP) != 0) {
-    EnableDebugger();
-  }
-  if ((runtime_flags & RuntimeFlags::PROFILE_FROM_SHELL) != 0) {
-    // simpleperf needs the process to be dumpable to profile it.
-    if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1) {
-      ALOGE("prctl(PR_SET_DUMPABLE) failed: %s", strerror(errno));
-      RuntimeAbort(env, __LINE__, "prctl(PR_SET_DUMPABLE, 1) failed");
+    // MOUNT_EXTERNAL_INSTALLER, MOUNT_EXTERNAL_PASS_THROUGH, MOUNT_EXTERNAL_ANDROID_WRITABLE apps
+    // will have mount_storage_dirs == false here (set by ProcessList.needsStorageDataIsolation()),
+    // and hence they won't bind mount storage dirs.
+    if (mount_storage_dirs) {
+        BindMountStorageDirs(env, pkg_data_info_list, uid, process_name, managed_nice_name,
+                             fail_fn);
     }
-  }
 
-  HeapTaggingLevel heap_tagging_level;
-  switch (runtime_flags & RuntimeFlags::MEMORY_TAG_LEVEL_MASK) {
-    case RuntimeFlags::MEMORY_TAG_LEVEL_TBI:
-      heap_tagging_level = M_HEAP_TAGGING_LEVEL_TBI;
-      break;
-    case RuntimeFlags::MEMORY_TAG_LEVEL_ASYNC:
-      heap_tagging_level = M_HEAP_TAGGING_LEVEL_ASYNC;
-      break;
-    case RuntimeFlags::MEMORY_TAG_LEVEL_SYNC:
-      heap_tagging_level = M_HEAP_TAGGING_LEVEL_SYNC;
-      break;
-    default:
-      heap_tagging_level = M_HEAP_TAGGING_LEVEL_NONE;
-      break;
-  }
-  mallopt(M_BIONIC_SET_HEAP_TAGGING_LEVEL, heap_tagging_level);
-
-  // Now that we've used the flag, clear it so that we don't pass unknown flags to the ART runtime.
-  runtime_flags &= ~RuntimeFlags::MEMORY_TAG_LEVEL_MASK;
-
-  // Avoid heap zero initialization for applications without MTE. Zero init may
-  // cause app compat problems, use more memory, or reduce performance. While it
-  // would be nice to have them for apps, we will have to wait until they are
-  // proven out, have more efficient hardware, and/or apply them only to new
-  // applications.
-  if (!(runtime_flags & RuntimeFlags::NATIVE_HEAP_ZERO_INIT)) {
-    mallopt(M_BIONIC_ZERO_INIT, 0);
-  }
-
-  // Now that we've used the flag, clear it so that we don't pass unknown flags to the ART runtime.
-  runtime_flags &= ~RuntimeFlags::NATIVE_HEAP_ZERO_INIT;
-
-  bool forceEnableGwpAsan = false;
-  switch (runtime_flags & RuntimeFlags::GWP_ASAN_LEVEL_MASK) {
-      default:
-      case RuntimeFlags::GWP_ASAN_LEVEL_NEVER:
-          break;
-      case RuntimeFlags::GWP_ASAN_LEVEL_ALWAYS:
-          forceEnableGwpAsan = true;
-          [[fallthrough]];
-      case RuntimeFlags::GWP_ASAN_LEVEL_LOTTERY:
-          android_mallopt(M_INITIALIZE_GWP_ASAN, &forceEnableGwpAsan, sizeof(forceEnableGwpAsan));
-  }
-  // Now that we've used the flag, clear it so that we don't pass unknown flags to the ART runtime.
-  runtime_flags &= ~RuntimeFlags::GWP_ASAN_LEVEL_MASK;
-
-  if (NeedsNoRandomizeWorkaround()) {
-    // Work around ARM kernel ASLR lossage (http://b/5817320).
-    int old_personality = personality(0xffffffff);
-    int new_personality = personality(old_personality | ADDR_NO_RANDOMIZE);
-    if (new_personality == -1) {
-      ALOGW("personality(%d) failed: %s", new_personality, strerror(errno));
+    // If this zygote isn't root, it won't be able to create a process group,
+    // since the directory is owned by root.
+    if (!is_system_server && getuid() == 0) {
+        const int rc = createProcessGroup(uid, getpid());
+        if (rc == -EROFS) {
+            ALOGW("createProcessGroup failed, kernel missing CONFIG_CGROUP_CPUACCT?");
+        } else if (rc != 0) {
+            ALOGE("createProcessGroup(%d, %d) failed: %s", uid, /* pid= */ 0, strerror(-rc));
+        }
     }
-  }
 
-  SetCapabilities(permitted_capabilities, effective_capabilities, permitted_capabilities, fail_fn);
+    SetGids(env, gids, is_child_zygote, fail_fn);
+    SetRLimits(env, rlimits, fail_fn);
 
-  __android_log_close();
-  AStatsSocket_close();
+    if (need_pre_initialize_native_bridge) {
+        // Due to the logic behind need_pre_initialize_native_bridge we know that
+        // instruction_set contains a value.
+        android::PreInitializeNativeBridge(app_data_dir.has_value() ? app_data_dir.value().c_str()
+                                                                    : nullptr,
+                                           instruction_set.value().c_str());
+    }
 
-  const char* se_info_ptr = se_info.has_value() ? se_info.value().c_str() : nullptr;
-  const char* nice_name_ptr = nice_name.has_value() ? nice_name.value().c_str() : nullptr;
+    if (setresgid(gid, gid, gid) == -1) {
+        fail_fn(CREATE_ERROR("setresgid(%d) failed: %s", gid, strerror(errno)));
+    }
 
-  if (selinux_android_setcontext(uid, is_system_server, se_info_ptr, nice_name_ptr) == -1) {
-    fail_fn(CREATE_ERROR("selinux_android_setcontext(%d, %d, \"%s\", \"%s\") failed",
-                         uid, is_system_server, se_info_ptr, nice_name_ptr));
-  }
+    // Must be called when the new process still has CAP_SYS_ADMIN, in this case,
+    // before changing uid from 0, which clears capabilities.  The other
+    // alternative is to call prctl(PR_SET_NO_NEW_PRIVS, 1) afterward, but that
+    // breaks SELinux domain transition (see b/71859146).  As the result,
+    // privileged syscalls used below still need to be accessible in app process.
+    SetUpSeccompFilter(uid, is_child_zygote);
 
-  // Make it easier to debug audit logs by setting the main thread's name to the
-  // nice name rather than "app_process".
-  if (nice_name.has_value()) {
-    SetThreadName(nice_name.value());
-  } else if (is_system_server) {
-    SetThreadName("system_server");
-  }
+    // Must be called before losing the permission to set scheduler policy.
+    SetSchedulerPolicy(fail_fn, is_top_app);
 
-  // Unset the SIGCHLD handler, but keep ignoring SIGHUP (rationale in SetSignalHandlers).
-  UnsetChldSignalHandler();
+    if (setresuid(uid, uid, uid) == -1) {
+        fail_fn(CREATE_ERROR("setresuid(%d) failed: %s", uid, strerror(errno)));
+    }
 
-  if (is_system_server) {
-    env->CallStaticVoidMethod(gZygoteClass, gCallPostForkSystemServerHooks, runtime_flags);
+    // The "dumpable" flag of a process, which controls core dump generation, is
+    // overwritten by the value in /proc/sys/fs/suid_dumpable when the effective
+    // user or group ID changes. See proc(5) for possible values. In most cases,
+    // the value is 0, so core dumps are disabled for zygote children. However,
+    // when running in a Chrome OS container, the value is already set to 2,
+    // which allows the external crash reporter to collect all core dumps. Since
+    // only system crashes are interested, core dump is disabled for app
+    // processes. This also ensures compliance with CTS.
+    int dumpable = prctl(PR_GET_DUMPABLE);
+    if (dumpable == -1) {
+        ALOGE("prctl(PR_GET_DUMPABLE) failed: %s", strerror(errno));
+        RuntimeAbort(env, __LINE__, "prctl(PR_GET_DUMPABLE) failed");
+    }
+
+    if (dumpable == 2 && uid >= AID_APP) {
+        if (prctl(PR_SET_DUMPABLE, 0, 0, 0, 0) == -1) {
+            ALOGE("prctl(PR_SET_DUMPABLE, 0) failed: %s", strerror(errno));
+            RuntimeAbort(env, __LINE__, "prctl(PR_SET_DUMPABLE, 0) failed");
+        }
+    }
+
+    // Set process properties to enable debugging if required.
+    if ((runtime_flags & RuntimeFlags::DEBUG_ENABLE_JDWP) != 0) {
+        EnableDebugger();
+    }
+    if ((runtime_flags & RuntimeFlags::PROFILE_FROM_SHELL) != 0) {
+        // simpleperf needs the process to be dumpable to profile it.
+        if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1) {
+            ALOGE("prctl(PR_SET_DUMPABLE) failed: %s", strerror(errno));
+            RuntimeAbort(env, __LINE__, "prctl(PR_SET_DUMPABLE, 1) failed");
+        }
+    }
+
+    HeapTaggingLevel heap_tagging_level;
+    switch (runtime_flags & RuntimeFlags::MEMORY_TAG_LEVEL_MASK) {
+        case RuntimeFlags::MEMORY_TAG_LEVEL_TBI:
+            heap_tagging_level = M_HEAP_TAGGING_LEVEL_TBI;
+            break;
+        case RuntimeFlags::MEMORY_TAG_LEVEL_ASYNC:
+            heap_tagging_level = M_HEAP_TAGGING_LEVEL_ASYNC;
+            break;
+        case RuntimeFlags::MEMORY_TAG_LEVEL_SYNC:
+            heap_tagging_level = M_HEAP_TAGGING_LEVEL_SYNC;
+            break;
+        default:
+            heap_tagging_level = M_HEAP_TAGGING_LEVEL_NONE;
+            break;
+    }
+    mallopt(M_BIONIC_SET_HEAP_TAGGING_LEVEL, heap_tagging_level);
+
+    // Now that we've used the flag, clear it so that we don't pass unknown flags to the ART
+    // runtime.
+    runtime_flags &= ~RuntimeFlags::MEMORY_TAG_LEVEL_MASK;
+
+    // Avoid heap zero initialization for applications without MTE. Zero init may
+    // cause app compat problems, use more memory, or reduce performance. While it
+    // would be nice to have them for apps, we will have to wait until they are
+    // proven out, have more efficient hardware, and/or apply them only to new
+    // applications.
+    if (!(runtime_flags & RuntimeFlags::NATIVE_HEAP_ZERO_INIT)) {
+        mallopt(M_BIONIC_ZERO_INIT, 0);
+    }
+
+    // Now that we've used the flag, clear it so that we don't pass unknown flags to the ART
+    // runtime.
+    runtime_flags &= ~RuntimeFlags::NATIVE_HEAP_ZERO_INIT;
+
+    bool forceEnableGwpAsan = false;
+    switch (runtime_flags & RuntimeFlags::GWP_ASAN_LEVEL_MASK) {
+        default:
+        case RuntimeFlags::GWP_ASAN_LEVEL_NEVER:
+            break;
+        case RuntimeFlags::GWP_ASAN_LEVEL_ALWAYS:
+            forceEnableGwpAsan = true;
+            [[fallthrough]];
+        case RuntimeFlags::GWP_ASAN_LEVEL_LOTTERY:
+            android_mallopt(M_INITIALIZE_GWP_ASAN, &forceEnableGwpAsan, sizeof(forceEnableGwpAsan));
+    }
+    // Now that we've used the flag, clear it so that we don't pass unknown flags to the ART
+    // runtime.
+    runtime_flags &= ~RuntimeFlags::GWP_ASAN_LEVEL_MASK;
+
+    if (NeedsNoRandomizeWorkaround()) {
+        // Work around ARM kernel ASLR lossage (http://b/5817320).
+        int old_personality = personality(0xffffffff);
+        int new_personality = personality(old_personality | ADDR_NO_RANDOMIZE);
+        if (new_personality == -1) {
+            ALOGW("personality(%d) failed: %s", new_personality, strerror(errno));
+        }
+    }
+
+    SetCapabilities(permitted_capabilities, effective_capabilities, permitted_capabilities,
+                    fail_fn);
+
+    __android_log_close();
+    AStatsSocket_close();
+
+    const char* se_info_ptr = se_info.has_value() ? se_info.value().c_str() : nullptr;
+    const char* nice_name_ptr = nice_name.has_value() ? nice_name.value().c_str() : nullptr;
+
+    if (selinux_android_setcontext(uid, is_system_server, se_info_ptr, nice_name_ptr) == -1) {
+        fail_fn(CREATE_ERROR("selinux_android_setcontext(%d, %d, \"%s\", \"%s\") failed", uid,
+                             is_system_server, se_info_ptr, nice_name_ptr));
+    }
+
+    // Make it easier to debug audit logs by setting the main thread's name to the
+    // nice name rather than "app_process".
+    if (nice_name.has_value()) {
+        SetThreadName(nice_name.value());
+    } else if (is_system_server) {
+        SetThreadName("system_server");
+    }
+
+    // Unset the SIGCHLD handler, but keep ignoring SIGHUP (rationale in SetSignalHandlers).
+    UnsetChldSignalHandler();
+
+    if (is_system_server) {
+        env->CallStaticVoidMethod(gZygoteClass, gCallPostForkSystemServerHooks, runtime_flags);
+        if (env->ExceptionCheck()) {
+            fail_fn("Error calling post fork system server hooks.");
+        }
+
+        // TODO(b/117874058): Remove hardcoded label here.
+        static const char* kSystemServerLabel = "u:r:system_server:s0";
+        if (selinux_android_setcon(kSystemServerLabel) != 0) {
+            fail_fn(CREATE_ERROR("selinux_android_setcon(%s)", kSystemServerLabel));
+        }
+    }
+
+    if (is_child_zygote) {
+        initUnsolSocketToSystemServer();
+    }
+
+    env->CallStaticVoidMethod(gZygoteClass, gCallPostForkChildHooks, runtime_flags,
+                              is_system_server, is_child_zygote, managed_instruction_set);
+
+    // Reset the process priority to the default value.
+    setpriority(PRIO_PROCESS, 0, PROCESS_PRIORITY_DEFAULT);
+
     if (env->ExceptionCheck()) {
-      fail_fn("Error calling post fork system server hooks.");
+        fail_fn("Error calling post fork hooks.");
     }
-
-    // TODO(oth): Remove hardcoded label here (b/117874058).
-    static const char* kSystemServerLabel = "u:r:system_server:s0";
-    if (selinux_android_setcon(kSystemServerLabel) != 0) {
-      fail_fn(CREATE_ERROR("selinux_android_setcon(%s)", kSystemServerLabel));
-    }
-  }
-
-  if (is_child_zygote) {
-      initUnsolSocketToSystemServer();
-  }
-
-  env->CallStaticVoidMethod(gZygoteClass, gCallPostForkChildHooks, runtime_flags,
-                            is_system_server, is_child_zygote, managed_instruction_set);
-
-  // Reset the process priority to the default value.
-  setpriority(PRIO_PROCESS, 0, PROCESS_PRIORITY_DEFAULT);
-
-  if (env->ExceptionCheck()) {
-    fail_fn("Error calling post fork hooks.");
-  }
 }
 
 static uint64_t GetEffectiveCapabilityMask(JNIEnv* env) {
@@ -2068,12 +2069,11 @@
 
 NO_PAC_FUNC
 static jint com_android_internal_os_Zygote_nativeForkAndSpecialize(
-        JNIEnv* env, jclass, jint uid, jint gid, jintArray gids,
-        jint runtime_flags, jobjectArray rlimits,
-        jint mount_external, jstring se_info, jstring nice_name,
+        JNIEnv* env, jclass, jint uid, jint gid, jintArray gids, jint runtime_flags,
+        jobjectArray rlimits, jint mount_external, jstring se_info, jstring nice_name,
         jintArray managed_fds_to_close, jintArray managed_fds_to_ignore, jboolean is_child_zygote,
         jstring instruction_set, jstring app_data_dir, jboolean is_top_app,
-        jobjectArray pkg_data_info_list, jobjectArray whitelisted_data_info_list,
+        jobjectArray pkg_data_info_list, jobjectArray allowlisted_data_info_list,
         jboolean mount_data_dirs, jboolean mount_storage_dirs) {
     jlong capabilities = CalculateCapabilities(env, uid, gid, gids, is_child_zygote);
 
@@ -2108,14 +2108,11 @@
     pid_t pid = zygote::ForkCommon(env, false, fds_to_close, fds_to_ignore, true);
 
     if (pid == 0) {
-      SpecializeCommon(env, uid, gid, gids, runtime_flags, rlimits,
-                       capabilities, capabilities,
-                       mount_external, se_info, nice_name, false,
-                       is_child_zygote == JNI_TRUE, instruction_set, app_data_dir,
-                       is_top_app == JNI_TRUE, pkg_data_info_list,
-                       whitelisted_data_info_list,
-                       mount_data_dirs == JNI_TRUE,
-                       mount_storage_dirs == JNI_TRUE);
+        SpecializeCommon(env, uid, gid, gids, runtime_flags, rlimits, capabilities, capabilities,
+                         mount_external, se_info, nice_name, false, is_child_zygote == JNI_TRUE,
+                         instruction_set, app_data_dir, is_top_app == JNI_TRUE, pkg_data_info_list,
+                         allowlisted_data_info_list, mount_data_dirs == JNI_TRUE,
+                         mount_storage_dirs == JNI_TRUE);
     }
     return pid;
 }
@@ -2147,12 +2144,11 @@
   if (pid == 0) {
       // System server prcoess does not need data isolation so no need to
       // know pkg_data_info_list.
-      SpecializeCommon(env, uid, gid, gids, runtime_flags, rlimits,
-                       permitted_capabilities, effective_capabilities,
-                       MOUNT_EXTERNAL_DEFAULT, nullptr, nullptr, true,
+      SpecializeCommon(env, uid, gid, gids, runtime_flags, rlimits, permitted_capabilities,
+                       effective_capabilities, MOUNT_EXTERNAL_DEFAULT, nullptr, nullptr, true,
                        false, nullptr, nullptr, /* is_top_app= */ false,
                        /* pkg_data_info_list */ nullptr,
-                       /* whitelisted_data_info_list */ nullptr, false, false);
+                       /* allowlisted_data_info_list */ nullptr, false, false);
   } else if (pid > 0) {
       // The zygote process checks whether the child process has died or not.
       ALOGI("System server process %d has been created", pid);
@@ -2260,7 +2256,7 @@
     if (!path_cstr) {
         RuntimeAbort(env, __LINE__, "path_cstr == nullptr");
     }
-    FileDescriptorWhitelist::Get()->Allow(path_cstr);
+    FileDescriptorAllowlist::Get()->Allow(path_cstr);
 }
 
 static void com_android_internal_os_Zygote_nativeInstallSeccompUidGidFilter(
@@ -2295,20 +2291,19 @@
  * @param is_top_app  If the process is for top (high priority) application
  */
 static void com_android_internal_os_Zygote_nativeSpecializeAppProcess(
-    JNIEnv* env, jclass, jint uid, jint gid, jintArray gids,
-    jint runtime_flags, jobjectArray rlimits,
-    jint mount_external, jstring se_info, jstring nice_name,
-    jboolean is_child_zygote, jstring instruction_set, jstring app_data_dir, jboolean is_top_app,
-    jobjectArray pkg_data_info_list, jobjectArray whitelisted_data_info_list,
-    jboolean mount_data_dirs, jboolean mount_storage_dirs) {
-  jlong capabilities = CalculateCapabilities(env, uid, gid, gids, is_child_zygote);
+        JNIEnv* env, jclass, jint uid, jint gid, jintArray gids, jint runtime_flags,
+        jobjectArray rlimits, jint mount_external, jstring se_info, jstring nice_name,
+        jboolean is_child_zygote, jstring instruction_set, jstring app_data_dir,
+        jboolean is_top_app, jobjectArray pkg_data_info_list,
+        jobjectArray allowlisted_data_info_list, jboolean mount_data_dirs,
+        jboolean mount_storage_dirs) {
+    jlong capabilities = CalculateCapabilities(env, uid, gid, gids, is_child_zygote);
 
-  SpecializeCommon(env, uid, gid, gids, runtime_flags, rlimits,
-                   capabilities, capabilities,
-                   mount_external, se_info, nice_name, false,
-                   is_child_zygote == JNI_TRUE, instruction_set, app_data_dir,
-                   is_top_app == JNI_TRUE, pkg_data_info_list, whitelisted_data_info_list,
-                   mount_data_dirs == JNI_TRUE, mount_storage_dirs == JNI_TRUE);
+    SpecializeCommon(env, uid, gid, gids, runtime_flags, rlimits, capabilities, capabilities,
+                     mount_external, se_info, nice_name, false, is_child_zygote == JNI_TRUE,
+                     instruction_set, app_data_dir, is_top_app == JNI_TRUE, pkg_data_info_list,
+                     allowlisted_data_info_list, mount_data_dirs == JNI_TRUE,
+                     mount_storage_dirs == JNI_TRUE);
 }
 
 /**
diff --git a/core/jni/fd_utils.cpp b/core/jni/fd_utils.cpp
index 06a71cb..7fa627b 100644
--- a/core/jni/fd_utils.cpp
+++ b/core/jni/fd_utils.cpp
@@ -31,8 +31,8 @@
 #include <android-base/stringprintf.h>
 #include <android-base/strings.h>
 
-// Static whitelist of open paths that the zygote is allowed to keep open.
-static const char* kPathWhitelist[] = {
+// Static allowlist of open paths that the zygote is allowed to keep open.
+static const char* kPathAllowlist[] = {
         "/dev/null",
         "/dev/socket/zygote",
         "/dev/socket/zygote_secondary",
@@ -53,118 +53,114 @@
 static const char kFdPath[] = "/proc/self/fd";
 
 // static
-FileDescriptorWhitelist* FileDescriptorWhitelist::Get() {
-  if (instance_ == nullptr) {
-    instance_ = new FileDescriptorWhitelist();
-  }
-  return instance_;
+FileDescriptorAllowlist* FileDescriptorAllowlist::Get() {
+    if (instance_ == nullptr) {
+        instance_ = new FileDescriptorAllowlist();
+    }
+    return instance_;
 }
 
 static bool IsArtMemfd(const std::string& path) {
   return android::base::StartsWith(path, "/memfd:/boot-image-methods.art");
 }
 
-bool FileDescriptorWhitelist::IsAllowed(const std::string& path) const {
-  // Check the static whitelist path.
-  for (const auto& whitelist_path : kPathWhitelist) {
-    if (path == whitelist_path)
-      return true;
-  }
-
-  // Check any paths added to the dynamic whitelist.
-  for (const auto& whitelist_path : whitelist_) {
-    if (path == whitelist_path)
-      return true;
-  }
-
-  // Framework jars are allowed.
-  static const char* kFrameworksPrefix[] = {
-          "/system/framework/",
-          "/system_ext/framework/",
-  };
-
-  static const char* kJarSuffix = ".jar";
-
-  for (const auto& frameworks_prefix : kFrameworksPrefix) {
-    if (android::base::StartsWith(path, frameworks_prefix)
-        && android::base::EndsWith(path, kJarSuffix)) {
-      return true;
+bool FileDescriptorAllowlist::IsAllowed(const std::string& path) const {
+    // Check the static allowlist path.
+    for (const auto& allowlist_path : kPathAllowlist) {
+        if (path == allowlist_path) return true;
     }
-  }
 
-  // Jars from APEXes are allowed. This matches /apex/**/javalib/*.jar.
-  static const char* kApexPrefix = "/apex/";
-  static const char* kApexJavalibPathSuffix = "/javalib";
-  if (android::base::StartsWith(path, kApexPrefix) && android::base::EndsWith(path, kJarSuffix) &&
-      android::base::EndsWith(android::base::Dirname(path), kApexJavalibPathSuffix)) {
-      return true;
-  }
+    // Check any paths added to the dynamic allowlist.
+    for (const auto& allowlist_path : allowlist_) {
+        if (path == allowlist_path) return true;
+    }
 
-  // the in-memory file created by ART through memfd_create is allowed.
-  if (IsArtMemfd(path)) {
-    return true;
-  }
+    // Framework jars are allowed.
+    static const char* kFrameworksPrefix[] = {
+            "/system/framework/",
+            "/system_ext/framework/",
+    };
 
-  // Whitelist files needed for Runtime Resource Overlay, like these:
-  // /system/vendor/overlay/framework-res.apk
-  // /system/vendor/overlay-subdir/pg/framework-res.apk
-  // /vendor/overlay/framework-res.apk
-  // /vendor/overlay/PG/android-framework-runtime-resource-overlay.apk
-  // /data/resource-cache/system@vendor@overlay@framework-res.apk@idmap
-  // /data/resource-cache/system@vendor@overlay-subdir@pg@framework-res.apk@idmap
-  // See AssetManager.cpp for more details on overlay-subdir.
-  static const char* kOverlayDir = "/system/vendor/overlay/";
-  static const char* kVendorOverlayDir = "/vendor/overlay";
-  static const char* kVendorOverlaySubdir = "/system/vendor/overlay-subdir/";
-  static const char* kSystemProductOverlayDir = "/system/product/overlay/";
-  static const char* kProductOverlayDir = "/product/overlay";
-  static const char* kSystemSystemExtOverlayDir = "/system/system_ext/overlay/";
-  static const char* kSystemExtOverlayDir = "/system_ext/overlay";
-  static const char* kSystemOdmOverlayDir = "/system/odm/overlay";
-  static const char* kOdmOverlayDir = "/odm/overlay";
-  static const char* kSystemOemOverlayDir = "/system/oem/overlay";
-  static const char* kOemOverlayDir = "/oem/overlay";
-  static const char* kApkSuffix = ".apk";
+    static const char* kJarSuffix = ".jar";
 
-  if ((android::base::StartsWith(path, kOverlayDir)
-       || android::base::StartsWith(path, kVendorOverlaySubdir)
-       || android::base::StartsWith(path, kVendorOverlayDir)
-       || android::base::StartsWith(path, kSystemProductOverlayDir)
-       || android::base::StartsWith(path, kProductOverlayDir)
-       || android::base::StartsWith(path, kSystemSystemExtOverlayDir)
-       || android::base::StartsWith(path, kSystemExtOverlayDir)
-       || android::base::StartsWith(path, kSystemOdmOverlayDir)
-       || android::base::StartsWith(path, kOdmOverlayDir)
-       || android::base::StartsWith(path, kSystemOemOverlayDir)
-       || android::base::StartsWith(path, kOemOverlayDir))
-      && android::base::EndsWith(path, kApkSuffix)
-      && path.find("/../") == std::string::npos) {
-    return true;
-  }
+    for (const auto& frameworks_prefix : kFrameworksPrefix) {
+        if (android::base::StartsWith(path, frameworks_prefix) &&
+            android::base::EndsWith(path, kJarSuffix)) {
+            return true;
+        }
+    }
 
-  static const char* kOverlayIdmapPrefix = "/data/resource-cache/";
-  static const char* kOverlayIdmapSuffix = ".apk@idmap";
-  if (android::base::StartsWith(path, kOverlayIdmapPrefix)
-      && android::base::EndsWith(path, kOverlayIdmapSuffix)
-      && path.find("/../") == std::string::npos) {
-    return true;
-  }
+    // Jars from APEXes are allowed. This matches /apex/**/javalib/*.jar.
+    static const char* kApexPrefix = "/apex/";
+    static const char* kApexJavalibPathSuffix = "/javalib";
+    if (android::base::StartsWith(path, kApexPrefix) && android::base::EndsWith(path, kJarSuffix) &&
+        android::base::EndsWith(android::base::Dirname(path), kApexJavalibPathSuffix)) {
+        return true;
+    }
 
-  // All regular files that are placed under this path are whitelisted automatically.
-  static const char* kZygoteWhitelistPath = "/vendor/zygote_whitelist/";
-  if (android::base::StartsWith(path, kZygoteWhitelistPath)
-      && path.find("/../") == std::string::npos) {
-    return true;
-  }
+    // the in-memory file created by ART through memfd_create is allowed.
+    if (IsArtMemfd(path)) {
+        return true;
+    }
 
-  return false;
+    // Allowlist files needed for Runtime Resource Overlay, like these:
+    // /system/vendor/overlay/framework-res.apk
+    // /system/vendor/overlay-subdir/pg/framework-res.apk
+    // /vendor/overlay/framework-res.apk
+    // /vendor/overlay/PG/android-framework-runtime-resource-overlay.apk
+    // /data/resource-cache/system@vendor@overlay@framework-res.apk@idmap
+    // /data/resource-cache/system@vendor@overlay-subdir@pg@framework-res.apk@idmap
+    // See AssetManager.cpp for more details on overlay-subdir.
+    static const char* kOverlayDir = "/system/vendor/overlay/";
+    static const char* kVendorOverlayDir = "/vendor/overlay";
+    static const char* kVendorOverlaySubdir = "/system/vendor/overlay-subdir/";
+    static const char* kSystemProductOverlayDir = "/system/product/overlay/";
+    static const char* kProductOverlayDir = "/product/overlay";
+    static const char* kSystemSystemExtOverlayDir = "/system/system_ext/overlay/";
+    static const char* kSystemExtOverlayDir = "/system_ext/overlay";
+    static const char* kSystemOdmOverlayDir = "/system/odm/overlay";
+    static const char* kOdmOverlayDir = "/odm/overlay";
+    static const char* kSystemOemOverlayDir = "/system/oem/overlay";
+    static const char* kOemOverlayDir = "/oem/overlay";
+    static const char* kApkSuffix = ".apk";
+
+    if ((android::base::StartsWith(path, kOverlayDir) ||
+         android::base::StartsWith(path, kVendorOverlaySubdir) ||
+         android::base::StartsWith(path, kVendorOverlayDir) ||
+         android::base::StartsWith(path, kSystemProductOverlayDir) ||
+         android::base::StartsWith(path, kProductOverlayDir) ||
+         android::base::StartsWith(path, kSystemSystemExtOverlayDir) ||
+         android::base::StartsWith(path, kSystemExtOverlayDir) ||
+         android::base::StartsWith(path, kSystemOdmOverlayDir) ||
+         android::base::StartsWith(path, kOdmOverlayDir) ||
+         android::base::StartsWith(path, kSystemOemOverlayDir) ||
+         android::base::StartsWith(path, kOemOverlayDir)) &&
+        android::base::EndsWith(path, kApkSuffix) && path.find("/../") == std::string::npos) {
+        return true;
+    }
+
+    static const char* kOverlayIdmapPrefix = "/data/resource-cache/";
+    static const char* kOverlayIdmapSuffix = ".apk@idmap";
+    if (android::base::StartsWith(path, kOverlayIdmapPrefix) &&
+        android::base::EndsWith(path, kOverlayIdmapSuffix) &&
+        path.find("/../") == std::string::npos) {
+        return true;
+    }
+
+    // All regular files that are placed under this path are allowlisted
+    // automatically.  The directory name is maintained for compatibility.
+    static const char* kZygoteAllowlistPath = "/vendor/zygote_whitelist/";
+    if (android::base::StartsWith(path, kZygoteAllowlistPath) &&
+        path.find("/../") == std::string::npos) {
+        return true;
+    }
+
+    return false;
 }
 
-FileDescriptorWhitelist::FileDescriptorWhitelist()
-    : whitelist_() {
-}
+FileDescriptorAllowlist::FileDescriptorAllowlist() : allowlist_() {}
 
-FileDescriptorWhitelist* FileDescriptorWhitelist::instance_ = nullptr;
+FileDescriptorAllowlist* FileDescriptorAllowlist::instance_ = nullptr;
 
 // Keeps track of all relevant information (flags, offset etc.) of an
 // open zygote file descriptor.
@@ -217,7 +213,7 @@
     fail_fn(android::base::StringPrintf("Unable to stat %d", fd));
   }
 
-  const FileDescriptorWhitelist* whitelist = FileDescriptorWhitelist::Get();
+  const FileDescriptorAllowlist* allowlist = FileDescriptorAllowlist::Get();
 
   if (S_ISSOCK(f_stat.st_mode)) {
     std::string socket_name;
@@ -225,16 +221,15 @@
       fail_fn("Unable to get socket name");
     }
 
-    if (!whitelist->IsAllowed(socket_name)) {
-      fail_fn(android::base::StringPrintf("Socket name not whitelisted : %s (fd=%d)",
-                                          socket_name.c_str(),
-                                          fd));
+    if (!allowlist->IsAllowed(socket_name)) {
+        fail_fn(android::base::StringPrintf("Socket name not allowlisted : %s (fd=%d)",
+                                            socket_name.c_str(), fd));
     }
 
     return new FileDescriptorInfo(fd);
   }
 
-  // We only handle whitelisted regular files and character devices. Whitelisted
+  // We only handle allowlisted regular files and character devices. Allowlisted
   // character devices must provide a guarantee of sensible behaviour when
   // reopened.
   //
@@ -268,8 +263,8 @@
                                         strerror(errno)));
   }
 
-  if (!whitelist->IsAllowed(file_path)) {
-    fail_fn(android::base::StringPrintf("Not whitelisted (%d): %s", fd, file_path.c_str()));
+  if (!allowlist->IsAllowed(file_path)) {
+      fail_fn(android::base::StringPrintf("Not allowlisted (%d): %s", fd, file_path.c_str()));
   }
 
   // File descriptor flags : currently on FD_CLOEXEC. We can set these
diff --git a/core/jni/fd_utils.h b/core/jni/fd_utils.h
index 2caf157..14c318e 100644
--- a/core/jni/fd_utils.h
+++ b/core/jni/fd_utils.h
@@ -33,42 +33,40 @@
 // This type is duplicated in com_android_internal_os_Zygote.cpp
 typedef const std::function<void(std::string)>& fail_fn_t;
 
-// Whitelist of open paths that the zygote is allowed to keep open.
+// Allowlist of open paths that the zygote is allowed to keep open.
 //
-// In addition to the paths listed in kPathWhitelist in file_utils.cpp, and
+// In addition to the paths listed in kPathAllowlist in file_utils.cpp, and
 // paths dynamically added with Allow(), all files ending with ".jar"
-// under /system/framework" are whitelisted. See IsAllowed() for the canonical
+// under /system/framework" are allowlisted. See IsAllowed() for the canonical
 // definition.
 //
-// If the whitelisted path is associated with a regular file or a
+// If the allowlisted path is associated with a regular file or a
 // character device, the file is reopened after a fork with the same
-// offset and mode. If the whilelisted  path is associated with a
+// offset and mode. If the allowlisted path is associated with a
 // AF_UNIX socket, the socket will refer to /dev/null after each
 // fork, and all operations on it will fail.
-class FileDescriptorWhitelist {
- public:
-  // Lazily creates the global whitelist.
-  static FileDescriptorWhitelist* Get();
+class FileDescriptorAllowlist {
+public:
+    // Lazily creates the global allowlist.
+    static FileDescriptorAllowlist* Get();
 
-  // Adds a path to the whitelist.
-  void Allow(const std::string& path) {
-    whitelist_.push_back(path);
-  }
+    // Adds a path to the allowlist.
+    void Allow(const std::string& path) { allowlist_.push_back(path); }
 
-  // Returns true iff. a given path is whitelisted. A path is whitelisted
-  // if it belongs to the whitelist (see kPathWhitelist) or if it's a path
-  // under /system/framework that ends with ".jar" or if it is a system
-  // framework overlay.
-  bool IsAllowed(const std::string& path) const;
+    // Returns true iff. a given path is allowlisted. A path is allowlisted
+    // if it belongs to the allowlist (see kPathAllowlist) or if it's a path
+    // under /system/framework that ends with ".jar" or if it is a system
+    // framework overlay.
+    bool IsAllowed(const std::string& path) const;
 
- private:
-  FileDescriptorWhitelist();
+private:
+    FileDescriptorAllowlist();
 
-  static FileDescriptorWhitelist* instance_;
+    static FileDescriptorAllowlist* instance_;
 
-  std::vector<std::string> whitelist_;
+    std::vector<std::string> allowlist_;
 
-  DISALLOW_COPY_AND_ASSIGN(FileDescriptorWhitelist);
+    DISALLOW_COPY_AND_ASSIGN(FileDescriptorAllowlist);
 };
 
 // A FileDescriptorTable is a collection of FileDescriptorInfo objects
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 50d1e6b..072bb87 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -1876,15 +1876,15 @@
     <permission android:name="android.permission.WIFI_UPDATE_USABILITY_STATS_SCORE"
         android:protectionLevel="signature|privileged" />
 
-    <!-- @SystemApi @hide Allows system APK to update Wifi/Cellular coex channels to avoid.
+    <!-- @SystemApi @hide Allows applications to update Wifi/Cellular coex channels to avoid.
              <p>Not for use by third-party applications. -->
     <permission android:name="android.permission.WIFI_UPDATE_COEX_UNSAFE_CHANNELS"
-        android:protectionLevel="signature" />
+        android:protectionLevel="signature|role" />
 
     <!-- @SystemApi @hide Allows applications to access Wifi/Cellular coex channels being avoided.
          <p>Not for use by third-party applications. -->
     <permission android:name="android.permission.WIFI_ACCESS_COEX_UNSAFE_CHANNELS"
-                android:protectionLevel="signature|privileged" />
+        android:protectionLevel="signature|role" />
 
     <!-- @SystemApi @hide Allows system APK to manage country code.
              <p>Not for use by third-party applications. -->
diff --git a/core/res/res/values/attrs.xml b/core/res/res/values/attrs.xml
index 100983b..efc8fe9 100644
--- a/core/res/res/values/attrs.xml
+++ b/core/res/res/values/attrs.xml
@@ -8424,6 +8424,9 @@
         <!-- Fully qualified class name of an activity that allows the user to modify
              the settings for this service. -->
         <attr name="settingsActivity" />
+        <!-- Fully qualified class name of an activity that allows the user to view any passwords
+             saved by this service. -->
+        <attr name="passwordsActivity" format="string" />
 
         <!-- Specifies whether the AutofillService supports inline suggestions-->
         <attr name="supportsInlineSuggestions" format="boolean" />
diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index d61d19a..633e216 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -1964,6 +1964,8 @@
     <string name="config_systemContacts" translatable="false">com.android.contacts</string>
     <!-- The name of the package that will hold the speech recognizer role by default. -->
     <string name="config_systemSpeechRecognizer" translatable="false"></string>
+    <!-- The name of the package that will hold the system Wi-Fi coex manager role. -->
+    <string name="config_systemWifiCoexManager" translateable="false"></string>
 
     <!-- The name of the package that will be allowed to change its components' label/icon. -->
     <string name="config_overrideComponentUiPackage" translatable="false"></string>
diff --git a/core/res/res/values/public.xml b/core/res/res/values/public.xml
index 2004d0a..7702ee4 100644
--- a/core/res/res/values/public.xml
+++ b/core/res/res/values/public.xml
@@ -3085,6 +3085,7 @@
     <public name="hand_secondTint"/>
     <public name="hand_secondTintMode"/>
     <public name="dataExtractionRules"/>
+    <public name="passwordsActivity"/>
   </public-group>
 
   <public-group type="drawable" first-id="0x010800b5">
@@ -3168,6 +3169,8 @@
     <public name="config_customMediaSessionPolicyProvider" />
     <!-- @hide @SystemApi -->
     <public name="config_systemSpeechRecognizer" />
+    <!-- @hide @SystemApi -->
+    <public name="config_systemWifiCoexManager" />
   </public-group>
 
   <public-group type="id" first-id="0x01020055">
diff --git a/core/tests/coretests/src/android/os/BytesMatcherTest.java b/core/tests/coretests/src/android/os/BytesMatcherTest.java
new file mode 100644
index 0000000..67c1b3c9
--- /dev/null
+++ b/core/tests/coretests/src/android/os/BytesMatcherTest.java
@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.os;
+
+import static com.android.internal.util.HexDump.hexStringToByteArray;
+
+import android.bluetooth.BluetoothUuid;
+import android.net.MacAddress;
+
+import androidx.test.filters.SmallTest;
+
+import junit.framework.TestCase;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+@RunWith(JUnit4.class)
+@SmallTest
+public class BytesMatcherTest extends TestCase {
+    @Test
+    public void testEmpty() throws Exception {
+        BytesMatcher matcher = BytesMatcher.decode("");
+        assertFalse(matcher.test(hexStringToByteArray("cafe")));
+        assertFalse(matcher.test(hexStringToByteArray("")));
+    }
+
+    @Test
+    public void testExact() throws Exception {
+        BytesMatcher matcher = BytesMatcher.decode("+cafe");
+        assertTrue(matcher.test(hexStringToByteArray("cafe")));
+        assertFalse(matcher.test(hexStringToByteArray("beef")));
+        assertFalse(matcher.test(hexStringToByteArray("ca")));
+        assertFalse(matcher.test(hexStringToByteArray("cafe00")));
+    }
+
+    @Test
+    public void testMask() throws Exception {
+        BytesMatcher matcher = BytesMatcher.decode("+cafe/ff00");
+        assertTrue(matcher.test(hexStringToByteArray("cafe")));
+        assertTrue(matcher.test(hexStringToByteArray("ca88")));
+        assertFalse(matcher.test(hexStringToByteArray("beef")));
+        assertFalse(matcher.test(hexStringToByteArray("ca")));
+        assertFalse(matcher.test(hexStringToByteArray("cafe00")));
+    }
+
+    @Test
+    public void testMacAddress() throws Exception {
+        BytesMatcher matcher = BytesMatcher.decode("+cafe00112233/ffffff000000");
+        assertTrue(matcher.testMacAddress(
+                MacAddress.fromString("ca:fe:00:00:00:00")));
+        assertFalse(matcher.testMacAddress(
+                MacAddress.fromString("f0:0d:00:00:00:00")));
+    }
+
+    @Test
+    public void testBluetoothUuid() throws Exception {
+        BytesMatcher matcher = BytesMatcher.decode("+cafe/ff00");
+        assertTrue(matcher.testBluetoothUuid(
+                BluetoothUuid.parseUuidFrom(hexStringToByteArray("cafe"))));
+        assertFalse(matcher.testBluetoothUuid(
+                BluetoothUuid.parseUuidFrom(hexStringToByteArray("beef"))));
+    }
+
+    /**
+     * Verify that single matcher can be configured to match Bluetooth UUIDs of
+     * varying lengths.
+     */
+    @Test
+    public void testBluetoothUuid_Mixed() throws Exception {
+        BytesMatcher matcher = BytesMatcher.decode("+aaaa/ff00,+bbbbbbbb/ffff0000");
+        assertTrue(matcher.testBluetoothUuid(
+                BluetoothUuid.parseUuidFrom(hexStringToByteArray("aaaa"))));
+        assertFalse(matcher.testBluetoothUuid(
+                BluetoothUuid.parseUuidFrom(hexStringToByteArray("bbbb"))));
+        assertTrue(matcher.testBluetoothUuid(
+                BluetoothUuid.parseUuidFrom(hexStringToByteArray("bbbbbbbb"))));
+        assertFalse(matcher.testBluetoothUuid(
+                BluetoothUuid.parseUuidFrom(hexStringToByteArray("aaaaaaaa"))));
+    }
+
+    @Test
+    public void testSerialize() throws Exception {
+        BytesMatcher matcher = new BytesMatcher();
+        matcher.addRejectRule(hexStringToByteArray("cafe00112233"),
+                hexStringToByteArray("ffffff000000"));
+        matcher.addRejectRule(hexStringToByteArray("beef00112233"),
+                null);
+        matcher.addAcceptRule(hexStringToByteArray("000000000000"),
+                hexStringToByteArray("000000000000"));
+
+        assertFalse(matcher.test(hexStringToByteArray("cafe00ffffff")));
+        assertFalse(matcher.test(hexStringToByteArray("beef00112233")));
+        assertTrue(matcher.test(hexStringToByteArray("beef00ffffff")));
+
+        // Bounce through serialization pass and confirm it still works
+        matcher = BytesMatcher.decode(BytesMatcher.encode(matcher));
+
+        assertFalse(matcher.test(hexStringToByteArray("cafe00ffffff")));
+        assertFalse(matcher.test(hexStringToByteArray("beef00112233")));
+        assertTrue(matcher.test(hexStringToByteArray("beef00ffffff")));
+    }
+
+    @Test
+    public void testOrdering_RejectFirst() throws Exception {
+        BytesMatcher matcher = BytesMatcher.decode("-ff/0f,+ff/f0");
+        assertFalse(matcher.test(hexStringToByteArray("ff")));
+        assertTrue(matcher.test(hexStringToByteArray("f0")));
+        assertFalse(matcher.test(hexStringToByteArray("0f")));
+    }
+
+    @Test
+    public void testOrdering_AcceptFirst() throws Exception {
+        BytesMatcher matcher = BytesMatcher.decode("+ff/f0,-ff/0f");
+        assertTrue(matcher.test(hexStringToByteArray("ff")));
+        assertTrue(matcher.test(hexStringToByteArray("f0")));
+        assertFalse(matcher.test(hexStringToByteArray("0f")));
+    }
+}
diff --git a/core/tests/coretests/src/android/security/CredentialManagementAppTest.java b/core/tests/coretests/src/android/security/CredentialManagementAppTest.java
index 366aabd..fa824b1 100644
--- a/core/tests/coretests/src/android/security/CredentialManagementAppTest.java
+++ b/core/tests/coretests/src/android/security/CredentialManagementAppTest.java
@@ -37,8 +37,6 @@
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.nio.charset.StandardCharsets;
-import java.util.Iterator;
-import java.util.Map;
 
 @SmallTest
 @RunWith(AndroidJUnit4.class)
@@ -149,37 +147,6 @@
     private void assertCredentialManagementAppsEqual(CredentialManagementApp actual,
             CredentialManagementApp expected) {
         assertThat(actual.getPackageName(), is(expected.getPackageName()));
-        assertAuthenticationPoliciesEqual(actual.getAuthenticationPolicy(),
-                expected.getAuthenticationPolicy());
-    }
-
-    private void assertAuthenticationPoliciesEqual(AppUriAuthenticationPolicy actual,
-            AppUriAuthenticationPolicy expected) {
-        Iterator<Map.Entry<String, Map<Uri, String>>> actualIter =
-                actual.getAppAndUriMappings().entrySet().iterator();
-        Iterator<Map.Entry<String, Map<Uri, String>>> expectedIter =
-                expected.getAppAndUriMappings().entrySet().iterator();
-
-        assertThat(actual.getAppAndUriMappings().size(),
-                is(expected.getAppAndUriMappings().size()));
-        while (actualIter.hasNext()) {
-            Map.Entry<String, Map<Uri, String>> actualAppToUri = actualIter.next();
-            Map.Entry<String, Map<Uri, String>> expectedAppToUri = expectedIter.next();
-            assertThat(actualAppToUri.getKey(), is(expectedAppToUri.getKey()));
-            assertUrisToAliasesEqual(actualAppToUri.getValue(), expectedAppToUri.getValue());
-        }
-    }
-
-    private void assertUrisToAliasesEqual(Map<Uri, String> actual, Map<Uri, String> expected) {
-        Iterator<Map.Entry<Uri, String>> actualIter = actual.entrySet().iterator();
-        Iterator<Map.Entry<Uri, String>> expectedIter = expected.entrySet().iterator();
-
-        assertThat(actual.size(), is(expected.size()));
-        while (actualIter.hasNext()) {
-            Map.Entry<Uri, String> actualUriToAlias = actualIter.next();
-            Map.Entry<Uri, String> expectedUriToAlias = expectedIter.next();
-            assertThat(actualUriToAlias.getKey(), is(expectedUriToAlias.getKey()));
-            assertThat(actualUriToAlias.getValue(), is(expectedUriToAlias.getValue()));
-        }
+        assertThat(actual.getAuthenticationPolicy(), is(expected.getAuthenticationPolicy()));
     }
 }
diff --git a/core/tests/coretests/src/android/view/accessibility/AccessibilityInteractionClientTest.java b/core/tests/coretests/src/android/view/accessibility/AccessibilityInteractionClientTest.java
index ab24f89..7e1e7f4 100644
--- a/core/tests/coretests/src/android/view/accessibility/AccessibilityInteractionClientTest.java
+++ b/core/tests/coretests/src/android/view/accessibility/AccessibilityInteractionClientTest.java
@@ -33,9 +33,6 @@
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
 
-import java.util.Arrays;
-import java.util.List;
-
 /**
  * Tests for AccessibilityInteractionClient
  */
@@ -65,7 +62,7 @@
         final long accessibilityNodeId = 0x4321L;
         AccessibilityNodeInfo nodeFromConnection = AccessibilityNodeInfo.obtain();
         nodeFromConnection.setSourceNodeId(accessibilityNodeId, windowId);
-        mMockConnection.mInfosToReturn = Arrays.asList(nodeFromConnection);
+        mMockConnection.mInfoToReturn = nodeFromConnection;
         AccessibilityInteractionClient client = AccessibilityInteractionClient.getInstance();
         AccessibilityNodeInfo node = client.findAccessibilityNodeInfoByAccessibilityId(
                 MOCK_CONNECTION_ID, windowId, accessibilityNodeId, true, 0, null);
@@ -75,7 +72,7 @@
     }
 
     private static class MockConnection extends AccessibilityServiceConnectionImpl {
-        List<AccessibilityNodeInfo> mInfosToReturn;
+        AccessibilityNodeInfo mInfoToReturn;
 
         @Override
         public String[] findAccessibilityNodeInfoByAccessibilityId(int accessibilityWindowId,
@@ -83,7 +80,7 @@
                 IAccessibilityInteractionConnectionCallback callback, int flags, long threadId,
                 Bundle arguments) {
             try {
-                callback.setFindAccessibilityNodeInfosResult(mInfosToReturn, interactionId);
+                callback.setFindAccessibilityNodeInfoResult(mInfoToReturn, interactionId);
             } catch (RemoteException e) {
                 throw new RuntimeException(e);
             }
diff --git a/data/etc/car/Android.bp b/data/etc/car/Android.bp
index 2f41b90..89644e2 100644
--- a/data/etc/car/Android.bp
+++ b/data/etc/car/Android.bp
@@ -146,6 +146,13 @@
 }
 
 prebuilt_etc {
+    name: "allowed_privapp_com.android.car.rotary",
+    sub_dir: "permissions",
+    src: "com.android.car.rotary.xml",
+    filename_from_src: true,
+}
+
+prebuilt_etc {
     name: "allowed_privapp_com.android.car.ui.paintbooth",
     sub_dir: "permissions",
     src: "com.android.car.ui.paintbooth.xml",
diff --git a/data/etc/car/com.android.car.rotary.xml b/data/etc/car/com.android.car.rotary.xml
new file mode 100644
index 0000000..eddef1a
--- /dev/null
+++ b/data/etc/car/com.android.car.rotary.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2021 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<permissions>
+    <privapp-permissions package="com.android.car.rotary">
+        <permission name="android.permission.GET_ACCOUNTS_PRIVILEGED"/>
+        <permission name="android.permission.WRITE_SECURE_SETTINGS"/>
+    </privapp-permissions>
+</permissions>
+
diff --git a/errorprone/Android.bp b/errorprone/Android.bp
index d1e94df..a927f53 100644
--- a/errorprone/Android.bp
+++ b/errorprone/Android.bp
@@ -36,11 +36,12 @@
 
 java_test_host {
     name: "error_prone_android_framework_test",
-    test_suites: ["general-tests"],
     srcs: ["tests/java/**/*.java"],
     java_resource_dirs: ["tests/res"],
     java_resources: [":error_prone_android_framework_testdata"],
     static_libs: [
+        "truth-prebuilt",
+        "kxml2-2.3.0",
         "error_prone_android_framework_lib",
         "error_prone_test_helpers",
         "hamcrest-library",
@@ -48,6 +49,9 @@
         "platform-test-annotations",
         "junit",
     ],
+    test_options: {
+        unit_test: true,
+    },
 }
 
 filegroup {
diff --git a/errorprone/TEST_MAPPING b/errorprone/TEST_MAPPING
deleted file mode 100644
index ee4552f..0000000
--- a/errorprone/TEST_MAPPING
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-    "presubmit": [
-        {
-            "name": "error_prone_android_framework_test"
-        }
-    ]
-}
diff --git a/graphics/java/android/graphics/RenderNode.java b/graphics/java/android/graphics/RenderNode.java
index f6f770b..da5162b 100644
--- a/graphics/java/android/graphics/RenderNode.java
+++ b/graphics/java/android/graphics/RenderNode.java
@@ -719,11 +719,11 @@
     /** @hide */
     public boolean stretch(float left, float top, float right, float bottom,
             float vecX, float vecY, float maxStretchAmount) {
-        if (1.0 < vecX || vecX < -1.0) {
-            throw new IllegalArgumentException("vecX must be in the range [-1, 1], was " + vecX);
+        if (Float.isInfinite(vecX) || Float.isNaN(vecX)) {
+            throw new IllegalArgumentException("vecX must be a finite, non-NaN value " + vecX);
         }
-        if (1.0 < vecY || vecY < -1.0) {
-            throw new IllegalArgumentException("vecY must be in the range [-1, 1], was " + vecY);
+        if (Float.isInfinite(vecY) || Float.isNaN(vecY)) {
+            throw new IllegalArgumentException("vecY must be a finite, non-NaN value " + vecY);
         }
         if (top >= bottom || left >= right) {
             throw new IllegalArgumentException(
@@ -734,7 +734,16 @@
             throw new IllegalArgumentException(
                     "The max stretch amount must be >0, got " + maxStretchAmount);
         }
-        return nStretch(mNativeRenderNode, left, top, right, bottom, vecX, vecY, maxStretchAmount);
+        return nStretch(
+                mNativeRenderNode,
+                left,
+                top,
+                right,
+                bottom,
+                vecX,
+                vecY,
+                maxStretchAmount
+        );
     }
 
     /**
diff --git a/keystore/java/android/security/AppUriAuthenticationPolicy.java b/keystore/java/android/security/AppUriAuthenticationPolicy.java
index 0244ce9..df79912 100644
--- a/keystore/java/android/security/AppUriAuthenticationPolicy.java
+++ b/keystore/java/android/security/AppUriAuthenticationPolicy.java
@@ -238,4 +238,21 @@
         return aliases;
     }
 
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (!(obj instanceof AppUriAuthenticationPolicy)) {
+            return false;
+        }
+        AppUriAuthenticationPolicy other = (AppUriAuthenticationPolicy) obj;
+        return Objects.equals(mAppToUris, other.mAppToUris);
+    }
+
+    @Override
+    public int hashCode() {
+        return mAppToUris.hashCode();
+    }
+
 }
diff --git a/keystore/java/android/security/UrisToAliases.java b/keystore/java/android/security/UrisToAliases.java
index 65d433a..9a8b659 100644
--- a/keystore/java/android/security/UrisToAliases.java
+++ b/keystore/java/android/security/UrisToAliases.java
@@ -30,6 +30,7 @@
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
+import java.util.Objects;
 
 /**
  * The mapping from URI to alias, which determines the alias to use when the user visits a URI.
@@ -135,4 +136,21 @@
     public void writeToParcel(@NonNull Parcel dest, int flags) {
         dest.writeMap(mUrisToAliases);
     }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (!(obj instanceof UrisToAliases)) {
+            return false;
+        }
+        UrisToAliases other = (UrisToAliases) obj;
+        return Objects.equals(mUrisToAliases, other.mUrisToAliases);
+    }
+
+    @Override
+    public int hashCode() {
+        return mUrisToAliases.hashCode();
+    }
 }
diff --git a/keystore/java/android/security/keystore/KeyGenParameterSpec.java b/keystore/java/android/security/keystore/KeyGenParameterSpec.java
index c79c12c..72735a7 100644
--- a/keystore/java/android/security/keystore/KeyGenParameterSpec.java
+++ b/keystore/java/android/security/keystore/KeyGenParameterSpec.java
@@ -279,8 +279,10 @@
  * }
  */
 public final class KeyGenParameterSpec implements AlgorithmParameterSpec, UserAuthArgs {
-    private static final X500Principal DEFAULT_CERT_SUBJECT =
+    private static final X500Principal DEFAULT_ATTESTATION_CERT_SUBJECT =
             new X500Principal("CN=Android Keystore Key");
+    private static final X500Principal DEFAULT_SELF_SIGNED_CERT_SUBJECT =
+            new X500Principal("CN=Fake");
     private static final BigInteger DEFAULT_CERT_SERIAL_NUMBER = new BigInteger("1");
     private static final Date DEFAULT_CERT_NOT_BEFORE = new Date(0L); // Jan 1 1970
     private static final Date DEFAULT_CERT_NOT_AFTER = new Date(2461449600000L); // Jan 1 2048
@@ -366,7 +368,11 @@
         }
 
         if (certificateSubject == null) {
-            certificateSubject = DEFAULT_CERT_SUBJECT;
+            if (attestationChallenge == null) {
+                certificateSubject = DEFAULT_SELF_SIGNED_CERT_SUBJECT;
+            } else {
+                certificateSubject = DEFAULT_ATTESTATION_CERT_SUBJECT;
+            }
         }
         if (certificateNotBefore == null) {
             certificateNotBefore = DEFAULT_CERT_NOT_BEFORE;
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/draganddrop/DragAndDropPolicy.java b/libs/WindowManager/Shell/src/com/android/wm/shell/draganddrop/DragAndDropPolicy.java
index 6f5f2eb..aab2334 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/draganddrop/DragAndDropPolicy.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/draganddrop/DragAndDropPolicy.java
@@ -234,8 +234,8 @@
             final UserHandle user = intent.getParcelableExtra(EXTRA_USER);
             mStarter.startShortcut(packageName, id, stage, position, opts, user);
         } else {
-            mStarter.startIntent(intent.getParcelableExtra(EXTRA_PENDING_INTENT), stage, position,
-                    opts);
+            mStarter.startIntent(intent.getParcelableExtra(EXTRA_PENDING_INTENT),
+                    mContext, null, stage, position, opts);
         }
     }
 
@@ -295,7 +295,8 @@
                 @Nullable Bundle options);
         void startShortcut(String packageName, String shortcutId, @StageType int stage,
                 @StagePosition int position, @Nullable Bundle options, UserHandle user);
-        void startIntent(PendingIntent intent, @StageType int stage, @StagePosition int position,
+        void startIntent(PendingIntent intent, Context context, Intent fillInIntent,
+                @StageType int stage, @StagePosition int position,
                 @Nullable Bundle options);
         void enterSplitScreen(int taskId, boolean leftOrTop);
         void exitSplitScreen();
@@ -336,10 +337,11 @@
         }
 
         @Override
-        public void startIntent(PendingIntent intent, int stage, int position,
+        public void startIntent(PendingIntent intent, Context context,
+                @Nullable Intent fillInIntent, int stage, int position,
                 @Nullable Bundle options) {
             try {
-                intent.send(null, 0, null, null, null, null, options);
+                intent.send(mContext, 0, fillInIntent, null, null, null, options);
             } catch (PendingIntent.CanceledException e) {
                 Slog.e(TAG, "Failed to launch activity", e);
             }
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/legacysplitscreen/LegacySplitScreenTaskListener.java b/libs/WindowManager/Shell/src/com/android/wm/shell/legacysplitscreen/LegacySplitScreenTaskListener.java
index 0552601..f4c0f93 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/legacysplitscreen/LegacySplitScreenTaskListener.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/legacysplitscreen/LegacySplitScreenTaskListener.java
@@ -52,6 +52,9 @@
     private final SyncTransactionQueue mSyncQueue;
     private final SparseArray<SurfaceControl> mLeashByTaskId = new SparseArray<>();
 
+    // TODO(shell-transitions): Remove when switched to shell-transitions.
+    private final SparseArray<Point> mPositionByTaskId = new SparseArray<>();
+
     RunningTaskInfo mPrimary;
     RunningTaskInfo mSecondary;
     SurfaceControl mPrimarySurface;
@@ -167,6 +170,7 @@
     @Override
     public void onTaskVanished(RunningTaskInfo taskInfo) {
         synchronized (this) {
+            mPositionByTaskId.remove(taskInfo.taskId);
             if (taskInfo.hasParentTask()) {
                 mLeashByTaskId.remove(taskInfo.taskId);
                 return;
@@ -200,16 +204,24 @@
         }
         synchronized (this) {
             if (taskInfo.hasParentTask()) {
+                // changed messages are noisy since it reports on every ensureVisibility. This
+                // conflicts with legacy app-transitions which "swaps" the position to a
+                // leash. For now, only update when position actually changes to avoid
+                // poorly-timed duplicate calls.
+                if (taskInfo.positionInParent.equals(mPositionByTaskId.get(taskInfo.taskId))) {
+                    return;
+                }
                 handleChildTaskChanged(taskInfo);
-                return;
+            } else {
+                handleTaskInfoChanged(taskInfo);
             }
-
-            handleTaskInfoChanged(taskInfo);
+            mPositionByTaskId.put(taskInfo.taskId, new Point(taskInfo.positionInParent));
         }
     }
 
     private void handleChildTaskAppeared(RunningTaskInfo taskInfo, SurfaceControl leash) {
         mLeashByTaskId.put(taskInfo.taskId, leash);
+        mPositionByTaskId.put(taskInfo.taskId, new Point(taskInfo.positionInParent));
         if (Transitions.ENABLE_SHELL_TRANSITIONS) return;
         updateChildTaskSurface(taskInfo, leash, true /* firstAppeared */);
     }
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/SplitScreen.java b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/SplitScreen.java
index 7ca5693..25a84bd 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/SplitScreen.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/SplitScreen.java
@@ -19,18 +19,17 @@
 import android.annotation.IntDef;
 import android.app.ActivityManager;
 import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
 import android.graphics.Rect;
 import android.os.Bundle;
 import android.os.UserHandle;
 
-import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
 import com.android.wm.shell.common.annotations.ExternalThread;
 import com.android.wm.shell.draganddrop.DragAndDropPolicy;
 
-import java.io.PrintWriter;
-
 /**
  * Interface to engage split-screen feature.
  * TODO: Figure out which of these are actually needed outside of the Shell
@@ -87,7 +86,7 @@
     /** Callback interface for listening to changes in a split-screen stage. */
     interface SplitScreenListener {
         void onStagePositionChanged(@StageType int stage, @StagePosition int position);
-        void onTaskStageChanged(int taskId, @StageType int stage);
+        void onTaskStageChanged(int taskId, @StageType int stage, boolean visible);
     }
 
     /** @return {@code true} if split-screen is currently visible. */
@@ -118,6 +117,7 @@
             @StageType int stage, @StagePosition int position, @Nullable Bundle options);
     void startShortcut(String packageName, String shortcutId, @StageType int stage,
             @StagePosition int position, @Nullable Bundle options, UserHandle user);
-    void startIntent(PendingIntent intent,
-            @StageType int stage, @StagePosition int position, @Nullable Bundle options);
+    void startIntent(PendingIntent intent, Context context,
+            @Nullable Intent fillInIntent, @StageType int stage,
+            @StagePosition int position, @Nullable Bundle options);
 }
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/SplitScreenController.java b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/SplitScreenController.java
index 11548ad..bb6f6f2 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/SplitScreenController.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/SplitScreenController.java
@@ -30,6 +30,7 @@
 import android.app.PendingIntent;
 import android.content.ActivityNotFoundException;
 import android.content.Context;
+import android.content.Intent;
 import android.content.pm.LauncherApps;
 import android.graphics.Rect;
 import android.os.Bundle;
@@ -171,12 +172,13 @@
         }
     }
 
-    public void startIntent(PendingIntent intent, @SplitScreen.StageType int stage,
+    public void startIntent(PendingIntent intent, Context context,
+            Intent fillInIntent, @SplitScreen.StageType int stage,
             @SplitScreen.StagePosition int position, @Nullable Bundle options) {
         options = resolveStartStage(stage, position, options);
 
         try {
-            intent.send(null, 0, null, null, null, null, options);
+            intent.send(context, 0, fillInIntent, null, null, null, options);
         } catch (PendingIntent.CanceledException e) {
             Slog.e(TAG, "Failed to launch activity", e);
         }
@@ -348,10 +350,11 @@
         }
 
         @Override
-        public void startIntent(PendingIntent intent, int stage, int position,
-                @Nullable Bundle options) {
+        public void startIntent(PendingIntent intent, Context context, Intent fillInIntent,
+                int stage, int position, @Nullable Bundle options) {
             mMainExecutor.execute(() -> {
-                SplitScreenController.this.startIntent(intent, stage, position, options);
+                SplitScreenController.this.startIntent(intent, context, fillInIntent, stage,
+                        position, options);
             });
         }
     }
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java
index bbfbc40..b180bb5 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java
@@ -225,7 +225,7 @@
     }
 
     private void onStageChildTaskStatusChanged(
-            StageListenerImpl stageListener, int taskId, boolean present) {
+            StageListenerImpl stageListener, int taskId, boolean present, boolean visible) {
 
         int stage;
         if (present) {
@@ -236,7 +236,7 @@
         }
 
         for (int i = mListeners.size() - 1; i >= 0; --i) {
-            mListeners.get(i).onTaskStageChanged(taskId, stage);
+            mListeners.get(i).onTaskStageChanged(taskId, stage, visible);
         }
     }
 
@@ -495,8 +495,8 @@
         }
 
         @Override
-        public void onChildTaskStatusChanged(int taskId, boolean present) {
-            StageCoordinator.this.onStageChildTaskStatusChanged(this, taskId, present);
+        public void onChildTaskStatusChanged(int taskId, boolean present, boolean visible) {
+            StageCoordinator.this.onStageChildTaskStatusChanged(this, taskId, present, visible);
         }
 
         @Override
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageTaskListener.java b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageTaskListener.java
index 10c742b..b8cdc4ab4d 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageTaskListener.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageTaskListener.java
@@ -58,7 +58,7 @@
     public interface StageListenerCallbacks {
         void onRootTaskAppeared();
         void onStatusChanged(boolean visible, boolean hasChildren);
-        void onChildTaskStatusChanged(int taskId, boolean present);
+        void onChildTaskStatusChanged(int taskId, boolean present, boolean visible);
         void onRootTaskVanished();
     }
     private final StageListenerCallbacks mCallbacks;
@@ -88,7 +88,7 @@
             mChildrenLeashes.put(taskId, leash);
             mChildrenTaskInfo.put(taskId, taskInfo);
             updateChildTaskSurface(taskInfo, leash, true /* firstAppeared */);
-            mCallbacks.onChildTaskStatusChanged(taskId, true /* present */);
+            mCallbacks.onChildTaskStatusChanged(taskId, true /* present */, taskInfo.isVisible);
         } else {
             throw new IllegalArgumentException(this + "\n Unknown task: " + taskInfo
                     + "\n mRootTaskInfo: " + mRootTaskInfo);
@@ -105,6 +105,8 @@
             mChildrenTaskInfo.put(taskInfo.taskId, taskInfo);
             updateChildTaskSurface(
                     taskInfo, mChildrenLeashes.get(taskInfo.taskId), false /* firstAppeared */);
+            mCallbacks.onChildTaskStatusChanged(taskInfo.taskId, true /* present */,
+                    taskInfo.isVisible);
         } else {
             throw new IllegalArgumentException(this + "\n Unknown task: " + taskInfo
                     + "\n mRootTaskInfo: " + mRootTaskInfo);
@@ -123,7 +125,7 @@
             mChildrenTaskInfo.remove(taskId);
             mChildrenLeashes.remove(taskId);
             sendStatusChanged();
-            mCallbacks.onChildTaskStatusChanged(taskId, false /* present */);
+            mCallbacks.onChildTaskStatusChanged(taskId, false /* present */, taskInfo.isVisible);
         } else {
             throw new IllegalArgumentException(this + "\n Unknown task: " + taskInfo
                     + "\n mRootTaskInfo: " + mRootTaskInfo);
@@ -152,7 +154,9 @@
     void onSplitScreenListenerRegistered(SplitScreen.SplitScreenListener listener,
             @SplitScreen.StageType int stage) {
         for (int i = mChildrenTaskInfo.size() - 1; i >= 0; --i) {
-            listener.onTaskStageChanged(mChildrenTaskInfo.keyAt(i), stage);
+            int taskId = mChildrenTaskInfo.keyAt(i);
+            listener.onTaskStageChanged(taskId, stage,
+                    mChildrenTaskInfo.get(taskId).isVisible);
         }
     }
 
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/transition/DefaultTransitionHandler.java b/libs/WindowManager/Shell/src/com/android/wm/shell/transition/DefaultTransitionHandler.java
index 2182ee5..629ff0d 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/transition/DefaultTransitionHandler.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/transition/DefaultTransitionHandler.java
@@ -97,8 +97,8 @@
         for (int i = info.getChanges().size() - 1; i >= 0; --i) {
             final TransitionInfo.Change change = info.getChanges().get(i);
 
-            // Don't animate anything with an animating parent
-            if (change.getParent() != null) continue;
+            // Don't animate anything that isn't independent.
+            if (!TransitionInfo.isIndependent(change, info)) continue;
 
             Animation a = loadAnimation(info.getType(), change);
             if (a != null) {
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/transition/Transitions.java b/libs/WindowManager/Shell/src/com/android/wm/shell/transition/Transitions.java
index 89eee67..677db10 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/transition/Transitions.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/transition/Transitions.java
@@ -214,8 +214,8 @@
             final SurfaceControl leash = change.getLeash();
             final int mode = info.getChanges().get(i).getMode();
 
-            // Don't move anything with an animating parent
-            if (change.getParent() != null) {
+            // Don't move anything that isn't independent within its parents
+            if (!TransitionInfo.isIndependent(change, info)) {
                 if (mode == TRANSIT_OPEN || mode == TRANSIT_TO_FRONT || mode == TRANSIT_CHANGE) {
                     t.show(leash);
                     t.setMatrix(leash, 1, 0, 0, 1);
@@ -225,9 +225,13 @@
                 continue;
             }
 
-            t.reparent(leash, info.getRootLeash());
-            t.setPosition(leash, change.getStartAbsBounds().left - info.getRootOffset().x,
-                    change.getStartAbsBounds().top - info.getRootOffset().y);
+            boolean hasParent = change.getParent() != null;
+
+            if (!hasParent) {
+                t.reparent(leash, info.getRootLeash());
+                t.setPosition(leash, change.getStartAbsBounds().left - info.getRootOffset().x,
+                        change.getStartAbsBounds().top - info.getRootOffset().y);
+            }
             // Put all the OPEN/SHOW on top
             if (mode == TRANSIT_OPEN || mode == TRANSIT_TO_FRONT) {
                 t.show(leash);
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/draganddrop/DragAndDropPolicyTest.java b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/draganddrop/DragAndDropPolicyTest.java
index 19ecc49..c1c4c6d 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/draganddrop/DragAndDropPolicyTest.java
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/draganddrop/DragAndDropPolicyTest.java
@@ -205,7 +205,7 @@
                 mPolicy.getTargets(mInsets), TYPE_FULLSCREEN);
 
         mPolicy.handleDrop(filterTargetByType(targets, TYPE_FULLSCREEN), mActivityClipData);
-        verify(mSplitScreenStarter).startIntent(any(),
+        verify(mSplitScreenStarter).startIntent(any(), any(), any(),
                 eq(STAGE_TYPE_UNDEFINED), eq(STAGE_POSITION_UNDEFINED), any());
     }
 
@@ -217,12 +217,12 @@
                 mPolicy.getTargets(mInsets), TYPE_FULLSCREEN, TYPE_SPLIT_LEFT, TYPE_SPLIT_RIGHT);
 
         mPolicy.handleDrop(filterTargetByType(targets, TYPE_FULLSCREEN), mActivityClipData);
-        verify(mSplitScreenStarter).startIntent(any(),
+        verify(mSplitScreenStarter).startIntent(any(), any(), any(),
                 eq(STAGE_TYPE_UNDEFINED), eq(STAGE_POSITION_UNDEFINED), any());
         reset(mSplitScreenStarter);
 
         mPolicy.handleDrop(filterTargetByType(targets, TYPE_SPLIT_RIGHT), mActivityClipData);
-        verify(mSplitScreenStarter).startIntent(any(),
+        verify(mSplitScreenStarter).startIntent(any(), any(), any(),
                 eq(STAGE_TYPE_SIDE), eq(STAGE_POSITION_BOTTOM_OR_RIGHT), any());
     }
 
@@ -234,12 +234,12 @@
                 mPolicy.getTargets(mInsets), TYPE_FULLSCREEN, TYPE_SPLIT_TOP, TYPE_SPLIT_BOTTOM);
 
         mPolicy.handleDrop(filterTargetByType(targets, TYPE_FULLSCREEN), mActivityClipData);
-        verify(mSplitScreenStarter).startIntent(any(),
+        verify(mSplitScreenStarter).startIntent(any(), any(), any(),
                 eq(STAGE_TYPE_UNDEFINED), eq(STAGE_POSITION_UNDEFINED), any());
         reset(mSplitScreenStarter);
 
         mPolicy.handleDrop(filterTargetByType(targets, TYPE_SPLIT_BOTTOM), mActivityClipData);
-        verify(mSplitScreenStarter).startIntent(any(),
+        verify(mSplitScreenStarter).startIntent(any(), any(), any(),
                 eq(STAGE_TYPE_SIDE), eq(STAGE_POSITION_BOTTOM_OR_RIGHT), any());
     }
 
@@ -251,7 +251,7 @@
                 mPolicy.getTargets(mInsets), TYPE_FULLSCREEN, TYPE_SPLIT_LEFT, TYPE_SPLIT_RIGHT);
 
         mPolicy.handleDrop(filterTargetByType(targets, TYPE_FULLSCREEN), mActivityClipData);
-        verify(mSplitScreenStarter).startIntent(any(),
+        verify(mSplitScreenStarter).startIntent(any(), any(), any(),
                 eq(STAGE_TYPE_UNDEFINED), eq(STAGE_POSITION_UNDEFINED), any());
     }
 
@@ -263,7 +263,7 @@
                 mPolicy.getTargets(mInsets), TYPE_FULLSCREEN, TYPE_SPLIT_LEFT, TYPE_SPLIT_RIGHT);
 
         mPolicy.handleDrop(filterTargetByType(targets, TYPE_FULLSCREEN), mActivityClipData);
-        verify(mSplitScreenStarter).startIntent(any(),
+        verify(mSplitScreenStarter).startIntent(any(), any(), any(),
                 eq(STAGE_TYPE_UNDEFINED), eq(STAGE_POSITION_UNDEFINED), any());
     }
 
@@ -276,13 +276,13 @@
                 mPolicy.getTargets(mInsets), TYPE_FULLSCREEN, TYPE_SPLIT_LEFT, TYPE_SPLIT_RIGHT);
 
         mPolicy.handleDrop(filterTargetByType(targets, TYPE_FULLSCREEN), mActivityClipData);
-        verify(mSplitScreenStarter).startIntent(any(),
+        verify(mSplitScreenStarter).startIntent(any(), any(), any(),
                 eq(STAGE_TYPE_UNDEFINED), eq(STAGE_POSITION_UNDEFINED), any());
         reset(mSplitScreenStarter);
 
         // TODO(b/169894807): Just verify starting for the non-docked task until we have app pairs
         mPolicy.handleDrop(filterTargetByType(targets, TYPE_SPLIT_RIGHT), mActivityClipData);
-        verify(mSplitScreenStarter).startIntent(any(),
+        verify(mSplitScreenStarter).startIntent(any(), any(), any(),
                 eq(STAGE_TYPE_SIDE), eq(STAGE_POSITION_BOTTOM_OR_RIGHT), any());
     }
 
@@ -295,13 +295,13 @@
                 mPolicy.getTargets(mInsets), TYPE_FULLSCREEN, TYPE_SPLIT_TOP, TYPE_SPLIT_BOTTOM);
 
         mPolicy.handleDrop(filterTargetByType(targets, TYPE_FULLSCREEN), mActivityClipData);
-        verify(mSplitScreenStarter).startIntent(any(),
+        verify(mSplitScreenStarter).startIntent(any(), any(), any(),
                 eq(STAGE_TYPE_UNDEFINED), eq(STAGE_POSITION_UNDEFINED), any());
         reset(mSplitScreenStarter);
 
         // TODO(b/169894807): Just verify starting for the non-docked task until we have app pairs
         mPolicy.handleDrop(filterTargetByType(targets, TYPE_SPLIT_BOTTOM), mActivityClipData);
-        verify(mSplitScreenStarter).startIntent(any(),
+        verify(mSplitScreenStarter).startIntent(any(), any(), any(),
                 eq(STAGE_TYPE_SIDE), eq(STAGE_POSITION_BOTTOM_OR_RIGHT), any());
     }
 
diff --git a/libs/hwui/RenderProperties.h b/libs/hwui/RenderProperties.h
index 609706e..5540e2d 100644
--- a/libs/hwui/RenderProperties.h
+++ b/libs/hwui/RenderProperties.h
@@ -552,8 +552,8 @@
 
     bool promotedToLayer() const {
         return mLayerProperties.mType == LayerType::None && fitsOnLayer() &&
-               (mComputedFields.mNeedLayerForFunctors ||
-                mLayerProperties.mImageFilter != nullptr ||
+               (mComputedFields.mNeedLayerForFunctors || mLayerProperties.mImageFilter != nullptr ||
+                !mLayerProperties.getStretchEffect().isEmpty() ||
                 (!MathUtils::isZero(mPrimitiveFields.mAlpha) && mPrimitiveFields.mAlpha < 1 &&
                  mPrimitiveFields.mHasOverlappingRendering));
     }
diff --git a/libs/hwui/effects/StretchEffect.cpp b/libs/hwui/effects/StretchEffect.cpp
index 51cbc75..d4fd105 100644
--- a/libs/hwui/effects/StretchEffect.cpp
+++ b/libs/hwui/effects/StretchEffect.cpp
@@ -15,13 +15,195 @@
  */
 
 #include "StretchEffect.h"
+#include <SkImageFilter.h>
+#include <SkRefCnt.h>
+#include <SkRuntimeEffect.h>
+#include <SkString.h>
+#include <SkSurface.h>
+#include <include/effects/SkImageFilters.h>
+
+#include <memory>
 
 namespace android::uirenderer {
 
-sk_sp<SkImageFilter> StretchEffect::getImageFilter() const {
-    // TODO: Implement & Cache
-    // Probably need to use mutable to achieve caching
-    return nullptr;
+static const SkString stretchShader = SkString(R"(
+    uniform shader uContentTexture;
+
+    // multiplier to apply to scale effect
+    uniform float uMaxStretchIntensity;
+
+    // Maximum percentage to stretch beyond bounds  of target
+    uniform float uStretchAffectedDist;
+
+    // Distance stretched as a function of the normalized overscroll times
+    // scale intensity
+    uniform float uDistanceStretchedX;
+    uniform float uDistanceStretchedY;
+    uniform float uDistDiffX;
+
+    // Difference between the peak stretch amount and overscroll amount normalized
+    uniform float uDistDiffY;
+
+    // Horizontal offset represented as a ratio of pixels divided by the target width
+    uniform float uScrollX;
+    // Vertical offset represented as a ratio of pixels divided by the target height
+    uniform float uScrollY;
+
+    // Normalized overscroll amount in the horizontal direction
+    uniform float uOverscrollX;
+
+    // Normalized overscroll amount in the vertical direction
+    uniform float uOverscrollY;
+    uniform float viewportWidth; // target height in pixels
+    uniform float viewportHeight; // target width in pixels
+
+    void computeOverscrollStart(
+        out float outPos,
+        float inPos,
+        float overscroll,
+        float uStretchAffectedDist,
+        float distanceStretched
+    ) {
+        float offsetPos = uStretchAffectedDist - inPos;
+        float posBasedVariation = smoothstep(0., uStretchAffectedDist, offsetPos);
+        float stretchIntensity = overscroll * posBasedVariation;
+        outPos = distanceStretched - (offsetPos / (1. + stretchIntensity));
+    }
+
+    void computeOverscrollEnd(
+        out float outPos,
+        float inPos,
+        float overscroll,
+        float reverseStretchDist,
+        float uStretchAffectedDist,
+        float distanceStretched
+    ) {
+        float offsetPos = inPos - reverseStretchDist;
+        float posBasedVariation = (smoothstep(0., uStretchAffectedDist, offsetPos));
+        float stretchIntensity = (-overscroll) * posBasedVariation;
+        outPos = 1 - (distanceStretched - (offsetPos / (1. + stretchIntensity)));
+    }
+
+    void computeOverscroll(
+        out float outPos,
+        float inPos,
+        float overscroll,
+        float uStretchAffectedDist,
+        float distanceStretched,
+        float distanceDiff
+    ) {
+        if (overscroll > 0) {
+            if (inPos <= uStretchAffectedDist) {
+                computeOverscrollStart(
+                  outPos,
+                  inPos,
+                  overscroll,
+                  uStretchAffectedDist,
+                  distanceStretched
+                );
+            } else if (inPos >= distanceStretched) {
+                outPos = distanceDiff + inPos;
+            }
+        }
+        if (overscroll < 0) {
+            float stretchAffectedDist = 1. - uStretchAffectedDist;
+            if (inPos >= stretchAffectedDist) {
+                computeOverscrollEnd(
+                  outPos,
+                  inPos,
+                  overscroll,
+                  stretchAffectedDist,
+                  uStretchAffectedDist,
+                  distanceStretched
+                );
+            } else if (inPos < stretchAffectedDist) {
+                outPos = -distanceDiff + inPos;
+            }
+        }
+    }
+
+    vec4 main(vec2 coord) {
+        // Normalize SKSL pixel coordinate into a unit vector
+        float inU = coord.x / viewportWidth;
+        float inV = coord.y / viewportHeight;
+        float outU;
+        float outV;
+        float stretchIntensity;
+        // Add the normalized scroll position within scrolling list
+        inU += uScrollX;
+        inV += uScrollY;
+        outU = inU;
+        outV = inV;
+        computeOverscroll(
+            outU,
+            inU,
+            uOverscrollX,
+            uStretchAffectedDist,
+            uDistanceStretchedX,
+            uDistDiffX
+        );
+        computeOverscroll(
+            outV,
+            inV,
+            uOverscrollY,
+            uStretchAffectedDist,
+            uDistanceStretchedY,
+            uDistDiffY
+        );
+        coord.x = outU * viewportWidth;
+        coord.y = outV * viewportHeight;
+        return sample(uContentTexture, coord);
+    })");
+
+static const float ZERO = 0.f;
+
+sk_sp<SkImageFilter> StretchEffect::getImageFilter(const sk_sp<SkImage>& snapshotImage) const {
+    if (isEmpty()) {
+        return nullptr;
+    }
+
+    if (mStretchFilter != nullptr) {
+        return mStretchFilter;
+    }
+
+    float distanceNotStretchedX = maxStretchAmount / stretchArea.width();
+    float distanceNotStretchedY = maxStretchAmount / stretchArea.height();
+    float normOverScrollDistX = mStretchDirection.x();
+    float normOverScrollDistY = mStretchDirection.y();
+    float distanceStretchedX = maxStretchAmount / (1 + abs(normOverScrollDistX));
+    float distanceStretchedY = maxStretchAmount / (1 + abs(normOverScrollDistY));
+    float diffX = distanceStretchedX - distanceNotStretchedX;
+    float diffY = distanceStretchedY - distanceNotStretchedY;
+    float viewportWidth = stretchArea.width();
+    float viewportHeight = stretchArea.height();
+
+    if (mBuilder == nullptr) {
+        mBuilder = std::make_unique<SkRuntimeShaderBuilder>(getStretchEffect());
+    }
+
+    mBuilder->child("uContentTexture") = snapshotImage->makeShader(
+            SkTileMode::kClamp, SkTileMode::kClamp, SkSamplingOptions(SkFilterMode::kLinear));
+    mBuilder->uniform("uStretchAffectedDist").set(&maxStretchAmount, 1);
+    mBuilder->uniform("uDistanceStretchedX").set(&distanceStretchedX, 1);
+    mBuilder->uniform("uDistanceStretchedY").set(&distanceStretchedY, 1);
+    mBuilder->uniform("uDistDiffX").set(&diffX, 1);
+    mBuilder->uniform("uDistDiffY").set(&diffY, 1);
+    mBuilder->uniform("uOverscrollX").set(&normOverScrollDistX, 1);
+    mBuilder->uniform("uOverscrollY").set(&normOverScrollDistY, 1);
+    mBuilder->uniform("uScrollX").set(&ZERO, 1);
+    mBuilder->uniform("uScrollY").set(&ZERO, 1);
+    mBuilder->uniform("viewportWidth").set(&viewportWidth, 1);
+    mBuilder->uniform("viewportHeight").set(&viewportHeight, 1);
+
+    mStretchFilter = SkImageFilters::Shader(mBuilder->makeShader(nullptr, false),
+                                            SkRect{0, 0, viewportWidth, viewportHeight});
+
+    return mStretchFilter;
+}
+
+sk_sp<SkRuntimeEffect> StretchEffect::getStretchEffect() {
+    const static SkRuntimeEffect::Result instance = SkRuntimeEffect::Make(stretchShader);
+    return instance.effect;
 }
 
 } // namespace android::uirenderer
\ No newline at end of file
diff --git a/libs/hwui/effects/StretchEffect.h b/libs/hwui/effects/StretchEffect.h
index 7dfd639..d2da06b 100644
--- a/libs/hwui/effects/StretchEffect.h
+++ b/libs/hwui/effects/StretchEffect.h
@@ -18,9 +18,11 @@
 
 #include "utils/MathUtils.h"
 
+#include <SkImage.h>
+#include <SkImageFilter.h>
 #include <SkPoint.h>
 #include <SkRect.h>
-#include <SkImageFilter.h>
+#include <SkRuntimeEffect.h>
 
 namespace android::uirenderer {
 
@@ -31,15 +33,27 @@
         SmoothStep,
     };
 
+    StretchEffect(const SkRect& area, const SkVector& direction, float maxStretchAmount)
+            : stretchArea(area), maxStretchAmount(maxStretchAmount), mStretchDirection(direction) {}
+
+    StretchEffect() {}
+
     bool isEmpty() const {
-        return MathUtils::isZero(stretchDirection.x())
-                && MathUtils::isZero(stretchDirection.y());
+        return MathUtils::isZero(mStretchDirection.x()) && MathUtils::isZero(mStretchDirection.y());
     }
 
     void setEmpty() {
         *this = StretchEffect{};
     }
 
+    StretchEffect& operator=(const StretchEffect& other) {
+        this->stretchArea = other.stretchArea;
+        this->mStretchDirection = other.mStretchDirection;
+        this->mStretchFilter = nullptr;
+        this->maxStretchAmount = other.maxStretchAmount;
+        return *this;
+    }
+
     void mergeWith(const StretchEffect& other) {
         if (other.isEmpty()) {
             return;
@@ -48,7 +62,7 @@
             *this = other;
             return;
         }
-        stretchDirection += other.stretchDirection;
+        setStretchDirection(mStretchDirection + other.mStretchDirection);
         if (isEmpty()) {
             return setEmpty();
         }
@@ -56,11 +70,23 @@
         maxStretchAmount = std::max(maxStretchAmount, other.maxStretchAmount);
     }
 
-    sk_sp<SkImageFilter> getImageFilter() const;
+    sk_sp<SkImageFilter> getImageFilter(const sk_sp<SkImage>& snapshotImage) const;
 
     SkRect stretchArea {0, 0, 0, 0};
-    SkVector stretchDirection {0, 0};
     float maxStretchAmount = 0;
+
+    void setStretchDirection(const SkVector& direction) {
+        mStretchFilter = nullptr;
+        mStretchDirection = direction;
+    }
+
+    const SkVector getStretchDirection() const { return mStretchDirection; }
+
+private:
+    static sk_sp<SkRuntimeEffect> getStretchEffect();
+    mutable SkVector mStretchDirection{0, 0};
+    mutable std::unique_ptr<SkRuntimeShaderBuilder> mBuilder;
+    mutable sk_sp<SkImageFilter> mStretchFilter;
 };
 
 } // namespace android::uirenderer
diff --git a/libs/hwui/jni/android_graphics_RenderNode.cpp b/libs/hwui/jni/android_graphics_RenderNode.cpp
index 5f60437..fc7d0d1 100644
--- a/libs/hwui/jni/android_graphics_RenderNode.cpp
+++ b/libs/hwui/jni/android_graphics_RenderNode.cpp
@@ -180,14 +180,13 @@
 }
 
 static jboolean android_view_RenderNode_stretch(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr,
-        jfloat left, jfloat top, jfloat right, jfloat bottom, jfloat vX, jfloat vY, jfloat max) {
+                                                jfloat left, jfloat top, jfloat right,
+                                                jfloat bottom, jfloat vX, jfloat vY, jfloat max) {
+    StretchEffect effect =
+            StretchEffect(SkRect::MakeLTRB(left, top, right, bottom), {.fX = vX, .fY = vY}, max);
     RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
     renderNode->mutateStagingProperties().mutateLayerProperties().mutableStretchEffect().mergeWith(
-            StretchEffect{
-        .stretchArea = SkRect::MakeLTRB(left, top, right, bottom),
-        .stretchDirection = {.fX = vX, .fY = vY},
-        .maxStretchAmount = max
-    });
+            effect);
     renderNode->setPropertyFieldsDirty(RenderNode::GENERIC);
     return true;
 }
@@ -659,10 +658,11 @@
                 return;
             }
 #ifdef __ANDROID__  // Layoutlib does not support CanvasContext
+            SkVector stretchDirection = effect->getStretchDirection();
             env->CallVoidMethod(localref, gPositionListener_ApplyStretchMethod,
                                 info.canvasContext.getFrameNumber(), area.left, area.top,
-                                area.right, area.bottom, effect->stretchDirection.fX,
-                                effect->stretchDirection.fY, effect->maxStretchAmount);
+                                area.right, area.bottom, stretchDirection.fX, stretchDirection.fY,
+                                effect->maxStretchAmount);
 #endif
             env->DeleteLocalRef(localref);
         }
@@ -702,106 +702,110 @@
 const char* const kClassPathName = "android/graphics/RenderNode";
 
 static const JNINativeMethod gMethods[] = {
-// ----------------------------------------------------------------------------
-// Regular JNI
-// ----------------------------------------------------------------------------
-    { "nCreate",               "(Ljava/lang/String;)J", (void*) android_view_RenderNode_create },
-    { "nGetNativeFinalizer",   "()J",    (void*) android_view_RenderNode_getNativeFinalizer },
-    { "nOutput",               "(J)V",    (void*) android_view_RenderNode_output },
-    { "nGetUsageSize",         "(J)I",    (void*) android_view_RenderNode_getUsageSize },
-    { "nGetAllocatedSize",         "(J)I",    (void*) android_view_RenderNode_getAllocatedSize },
-    { "nAddAnimator",              "(JJ)V", (void*) android_view_RenderNode_addAnimator },
-    { "nEndAllAnimators",          "(J)V", (void*) android_view_RenderNode_endAllAnimators },
-    { "nRequestPositionUpdates",   "(JLandroid/graphics/RenderNode$PositionUpdateListener;)V", (void*) android_view_RenderNode_requestPositionUpdates },
+        // ----------------------------------------------------------------------------
+        // Regular JNI
+        // ----------------------------------------------------------------------------
+        {"nCreate", "(Ljava/lang/String;)J", (void*)android_view_RenderNode_create},
+        {"nGetNativeFinalizer", "()J", (void*)android_view_RenderNode_getNativeFinalizer},
+        {"nOutput", "(J)V", (void*)android_view_RenderNode_output},
+        {"nGetUsageSize", "(J)I", (void*)android_view_RenderNode_getUsageSize},
+        {"nGetAllocatedSize", "(J)I", (void*)android_view_RenderNode_getAllocatedSize},
+        {"nAddAnimator", "(JJ)V", (void*)android_view_RenderNode_addAnimator},
+        {"nEndAllAnimators", "(J)V", (void*)android_view_RenderNode_endAllAnimators},
+        {"nRequestPositionUpdates", "(JLandroid/graphics/RenderNode$PositionUpdateListener;)V",
+         (void*)android_view_RenderNode_requestPositionUpdates},
 
-// ----------------------------------------------------------------------------
-// Critical JNI via @CriticalNative annotation in RenderNode.java
-// ----------------------------------------------------------------------------
-    { "nDiscardDisplayList",   "(J)V",   (void*) android_view_RenderNode_discardDisplayList },
-    { "nIsValid",              "(J)Z",   (void*) android_view_RenderNode_isValid },
-    { "nSetLayerType",         "(JI)Z",  (void*) android_view_RenderNode_setLayerType },
-    { "nGetLayerType",         "(J)I",   (void*) android_view_RenderNode_getLayerType },
-    { "nSetLayerPaint",        "(JJ)Z",  (void*) android_view_RenderNode_setLayerPaint },
-    { "nSetStaticMatrix",      "(JJ)Z",  (void*) android_view_RenderNode_setStaticMatrix },
-    { "nSetAnimationMatrix",   "(JJ)Z",  (void*) android_view_RenderNode_setAnimationMatrix },
-    { "nGetAnimationMatrix",   "(JJ)Z",  (void*) android_view_RenderNode_getAnimationMatrix },
-    { "nSetClipToBounds",      "(JZ)Z",  (void*) android_view_RenderNode_setClipToBounds },
-    { "nGetClipToBounds",      "(J)Z",   (void*) android_view_RenderNode_getClipToBounds },
-    { "nSetClipBounds",        "(JIIII)Z", (void*) android_view_RenderNode_setClipBounds },
-    { "nSetClipBoundsEmpty",   "(J)Z",   (void*) android_view_RenderNode_setClipBoundsEmpty },
-    { "nSetProjectBackwards",  "(JZ)Z",  (void*) android_view_RenderNode_setProjectBackwards },
-    { "nSetProjectionReceiver","(JZ)Z",  (void*) android_view_RenderNode_setProjectionReceiver },
+        // ----------------------------------------------------------------------------
+        // Critical JNI via @CriticalNative annotation in RenderNode.java
+        // ----------------------------------------------------------------------------
+        {"nDiscardDisplayList", "(J)V", (void*)android_view_RenderNode_discardDisplayList},
+        {"nIsValid", "(J)Z", (void*)android_view_RenderNode_isValid},
+        {"nSetLayerType", "(JI)Z", (void*)android_view_RenderNode_setLayerType},
+        {"nGetLayerType", "(J)I", (void*)android_view_RenderNode_getLayerType},
+        {"nSetLayerPaint", "(JJ)Z", (void*)android_view_RenderNode_setLayerPaint},
+        {"nSetStaticMatrix", "(JJ)Z", (void*)android_view_RenderNode_setStaticMatrix},
+        {"nSetAnimationMatrix", "(JJ)Z", (void*)android_view_RenderNode_setAnimationMatrix},
+        {"nGetAnimationMatrix", "(JJ)Z", (void*)android_view_RenderNode_getAnimationMatrix},
+        {"nSetClipToBounds", "(JZ)Z", (void*)android_view_RenderNode_setClipToBounds},
+        {"nGetClipToBounds", "(J)Z", (void*)android_view_RenderNode_getClipToBounds},
+        {"nSetClipBounds", "(JIIII)Z", (void*)android_view_RenderNode_setClipBounds},
+        {"nSetClipBoundsEmpty", "(J)Z", (void*)android_view_RenderNode_setClipBoundsEmpty},
+        {"nSetProjectBackwards", "(JZ)Z", (void*)android_view_RenderNode_setProjectBackwards},
+        {"nSetProjectionReceiver", "(JZ)Z", (void*)android_view_RenderNode_setProjectionReceiver},
 
-    { "nSetOutlineRoundRect",  "(JIIIIFF)Z", (void*) android_view_RenderNode_setOutlineRoundRect },
-    { "nSetOutlinePath",       "(JJF)Z", (void*) android_view_RenderNode_setOutlinePath },
-    { "nSetOutlineEmpty",      "(J)Z",   (void*) android_view_RenderNode_setOutlineEmpty },
-    { "nSetOutlineNone",       "(J)Z",   (void*) android_view_RenderNode_setOutlineNone },
-    { "nClearStretch",         "(J)Z",   (void*) android_view_RenderNode_clearStretch },
-    { "nStretch",              "(JFFFFFFF)Z",   (void*) android_view_RenderNode_stretch },
-    { "nHasShadow",            "(J)Z",   (void*) android_view_RenderNode_hasShadow },
-    { "nSetSpotShadowColor",   "(JI)Z",  (void*) android_view_RenderNode_setSpotShadowColor },
-    { "nGetSpotShadowColor",   "(J)I",   (void*) android_view_RenderNode_getSpotShadowColor },
-    { "nSetAmbientShadowColor","(JI)Z",  (void*) android_view_RenderNode_setAmbientShadowColor },
-    { "nGetAmbientShadowColor","(J)I",   (void*) android_view_RenderNode_getAmbientShadowColor },
-    { "nSetClipToOutline",     "(JZ)Z",  (void*) android_view_RenderNode_setClipToOutline },
-    { "nSetRevealClip",        "(JZFFF)Z", (void*) android_view_RenderNode_setRevealClip },
+        {"nSetOutlineRoundRect", "(JIIIIFF)Z", (void*)android_view_RenderNode_setOutlineRoundRect},
+        {"nSetOutlinePath", "(JJF)Z", (void*)android_view_RenderNode_setOutlinePath},
+        {"nSetOutlineEmpty", "(J)Z", (void*)android_view_RenderNode_setOutlineEmpty},
+        {"nSetOutlineNone", "(J)Z", (void*)android_view_RenderNode_setOutlineNone},
+        {"nClearStretch", "(J)Z", (void*)android_view_RenderNode_clearStretch},
+        {"nStretch", "(JFFFFFFF)Z", (void*)android_view_RenderNode_stretch},
+        {"nHasShadow", "(J)Z", (void*)android_view_RenderNode_hasShadow},
+        {"nSetSpotShadowColor", "(JI)Z", (void*)android_view_RenderNode_setSpotShadowColor},
+        {"nGetSpotShadowColor", "(J)I", (void*)android_view_RenderNode_getSpotShadowColor},
+        {"nSetAmbientShadowColor", "(JI)Z", (void*)android_view_RenderNode_setAmbientShadowColor},
+        {"nGetAmbientShadowColor", "(J)I", (void*)android_view_RenderNode_getAmbientShadowColor},
+        {"nSetClipToOutline", "(JZ)Z", (void*)android_view_RenderNode_setClipToOutline},
+        {"nSetRevealClip", "(JZFFF)Z", (void*)android_view_RenderNode_setRevealClip},
 
-    { "nSetAlpha",             "(JF)Z",  (void*) android_view_RenderNode_setAlpha },
-    { "nSetRenderEffect",      "(JJ)Z",  (void*) android_view_RenderNode_setRenderEffect },
-    { "nSetHasOverlappingRendering", "(JZ)Z",
-            (void*) android_view_RenderNode_setHasOverlappingRendering },
-    { "nSetUsageHint",    "(JI)V", (void*) android_view_RenderNode_setUsageHint },
-    { "nSetElevation",         "(JF)Z",  (void*) android_view_RenderNode_setElevation },
-    { "nSetTranslationX",      "(JF)Z",  (void*) android_view_RenderNode_setTranslationX },
-    { "nSetTranslationY",      "(JF)Z",  (void*) android_view_RenderNode_setTranslationY },
-    { "nSetTranslationZ",      "(JF)Z",  (void*) android_view_RenderNode_setTranslationZ },
-    { "nSetRotation",          "(JF)Z",  (void*) android_view_RenderNode_setRotation },
-    { "nSetRotationX",         "(JF)Z",  (void*) android_view_RenderNode_setRotationX },
-    { "nSetRotationY",         "(JF)Z",  (void*) android_view_RenderNode_setRotationY },
-    { "nSetScaleX",            "(JF)Z",  (void*) android_view_RenderNode_setScaleX },
-    { "nSetScaleY",            "(JF)Z",  (void*) android_view_RenderNode_setScaleY },
-    { "nSetPivotX",            "(JF)Z",  (void*) android_view_RenderNode_setPivotX },
-    { "nSetPivotY",            "(JF)Z",  (void*) android_view_RenderNode_setPivotY },
-    { "nResetPivot",           "(J)Z",   (void*) android_view_RenderNode_resetPivot },
-    { "nSetCameraDistance",    "(JF)Z",  (void*) android_view_RenderNode_setCameraDistance },
-    { "nSetLeft",              "(JI)Z",  (void*) android_view_RenderNode_setLeft },
-    { "nSetTop",               "(JI)Z",  (void*) android_view_RenderNode_setTop },
-    { "nSetRight",             "(JI)Z",  (void*) android_view_RenderNode_setRight },
-    { "nSetBottom",            "(JI)Z",  (void*) android_view_RenderNode_setBottom },
-    { "nGetLeft",              "(J)I",  (void*) android_view_RenderNode_getLeft },
-    { "nGetTop",               "(J)I",  (void*) android_view_RenderNode_getTop },
-    { "nGetRight",             "(J)I",  (void*) android_view_RenderNode_getRight },
-    { "nGetBottom",            "(J)I",  (void*) android_view_RenderNode_getBottom },
-    { "nSetLeftTopRightBottom","(JIIII)Z", (void*) android_view_RenderNode_setLeftTopRightBottom },
-    { "nOffsetLeftAndRight",   "(JI)Z",  (void*) android_view_RenderNode_offsetLeftAndRight },
-    { "nOffsetTopAndBottom",   "(JI)Z",  (void*) android_view_RenderNode_offsetTopAndBottom },
+        {"nSetAlpha", "(JF)Z", (void*)android_view_RenderNode_setAlpha},
+        {"nSetRenderEffect", "(JJ)Z", (void*)android_view_RenderNode_setRenderEffect},
+        {"nSetHasOverlappingRendering", "(JZ)Z",
+         (void*)android_view_RenderNode_setHasOverlappingRendering},
+        {"nSetUsageHint", "(JI)V", (void*)android_view_RenderNode_setUsageHint},
+        {"nSetElevation", "(JF)Z", (void*)android_view_RenderNode_setElevation},
+        {"nSetTranslationX", "(JF)Z", (void*)android_view_RenderNode_setTranslationX},
+        {"nSetTranslationY", "(JF)Z", (void*)android_view_RenderNode_setTranslationY},
+        {"nSetTranslationZ", "(JF)Z", (void*)android_view_RenderNode_setTranslationZ},
+        {"nSetRotation", "(JF)Z", (void*)android_view_RenderNode_setRotation},
+        {"nSetRotationX", "(JF)Z", (void*)android_view_RenderNode_setRotationX},
+        {"nSetRotationY", "(JF)Z", (void*)android_view_RenderNode_setRotationY},
+        {"nSetScaleX", "(JF)Z", (void*)android_view_RenderNode_setScaleX},
+        {"nSetScaleY", "(JF)Z", (void*)android_view_RenderNode_setScaleY},
+        {"nSetPivotX", "(JF)Z", (void*)android_view_RenderNode_setPivotX},
+        {"nSetPivotY", "(JF)Z", (void*)android_view_RenderNode_setPivotY},
+        {"nResetPivot", "(J)Z", (void*)android_view_RenderNode_resetPivot},
+        {"nSetCameraDistance", "(JF)Z", (void*)android_view_RenderNode_setCameraDistance},
+        {"nSetLeft", "(JI)Z", (void*)android_view_RenderNode_setLeft},
+        {"nSetTop", "(JI)Z", (void*)android_view_RenderNode_setTop},
+        {"nSetRight", "(JI)Z", (void*)android_view_RenderNode_setRight},
+        {"nSetBottom", "(JI)Z", (void*)android_view_RenderNode_setBottom},
+        {"nGetLeft", "(J)I", (void*)android_view_RenderNode_getLeft},
+        {"nGetTop", "(J)I", (void*)android_view_RenderNode_getTop},
+        {"nGetRight", "(J)I", (void*)android_view_RenderNode_getRight},
+        {"nGetBottom", "(J)I", (void*)android_view_RenderNode_getBottom},
+        {"nSetLeftTopRightBottom", "(JIIII)Z",
+         (void*)android_view_RenderNode_setLeftTopRightBottom},
+        {"nOffsetLeftAndRight", "(JI)Z", (void*)android_view_RenderNode_offsetLeftAndRight},
+        {"nOffsetTopAndBottom", "(JI)Z", (void*)android_view_RenderNode_offsetTopAndBottom},
 
-    { "nHasOverlappingRendering", "(J)Z",  (void*) android_view_RenderNode_hasOverlappingRendering },
-    { "nGetClipToOutline",        "(J)Z",  (void*) android_view_RenderNode_getClipToOutline },
-    { "nGetAlpha",                "(J)F",  (void*) android_view_RenderNode_getAlpha },
-    { "nGetCameraDistance",       "(J)F",  (void*) android_view_RenderNode_getCameraDistance },
-    { "nGetScaleX",               "(J)F",  (void*) android_view_RenderNode_getScaleX },
-    { "nGetScaleY",               "(J)F",  (void*) android_view_RenderNode_getScaleY },
-    { "nGetElevation",            "(J)F",  (void*) android_view_RenderNode_getElevation },
-    { "nGetTranslationX",         "(J)F",  (void*) android_view_RenderNode_getTranslationX },
-    { "nGetTranslationY",         "(J)F",  (void*) android_view_RenderNode_getTranslationY },
-    { "nGetTranslationZ",         "(J)F",  (void*) android_view_RenderNode_getTranslationZ },
-    { "nGetRotation",             "(J)F",  (void*) android_view_RenderNode_getRotation },
-    { "nGetRotationX",            "(J)F",  (void*) android_view_RenderNode_getRotationX },
-    { "nGetRotationY",            "(J)F",  (void*) android_view_RenderNode_getRotationY },
-    { "nIsPivotExplicitlySet",    "(J)Z",  (void*) android_view_RenderNode_isPivotExplicitlySet },
-    { "nHasIdentityMatrix",       "(J)Z",  (void*) android_view_RenderNode_hasIdentityMatrix },
+        {"nHasOverlappingRendering", "(J)Z",
+         (void*)android_view_RenderNode_hasOverlappingRendering},
+        {"nGetClipToOutline", "(J)Z", (void*)android_view_RenderNode_getClipToOutline},
+        {"nGetAlpha", "(J)F", (void*)android_view_RenderNode_getAlpha},
+        {"nGetCameraDistance", "(J)F", (void*)android_view_RenderNode_getCameraDistance},
+        {"nGetScaleX", "(J)F", (void*)android_view_RenderNode_getScaleX},
+        {"nGetScaleY", "(J)F", (void*)android_view_RenderNode_getScaleY},
+        {"nGetElevation", "(J)F", (void*)android_view_RenderNode_getElevation},
+        {"nGetTranslationX", "(J)F", (void*)android_view_RenderNode_getTranslationX},
+        {"nGetTranslationY", "(J)F", (void*)android_view_RenderNode_getTranslationY},
+        {"nGetTranslationZ", "(J)F", (void*)android_view_RenderNode_getTranslationZ},
+        {"nGetRotation", "(J)F", (void*)android_view_RenderNode_getRotation},
+        {"nGetRotationX", "(J)F", (void*)android_view_RenderNode_getRotationX},
+        {"nGetRotationY", "(J)F", (void*)android_view_RenderNode_getRotationY},
+        {"nIsPivotExplicitlySet", "(J)Z", (void*)android_view_RenderNode_isPivotExplicitlySet},
+        {"nHasIdentityMatrix", "(J)Z", (void*)android_view_RenderNode_hasIdentityMatrix},
 
-    { "nGetTransformMatrix",       "(JJ)V", (void*) android_view_RenderNode_getTransformMatrix },
-    { "nGetInverseTransformMatrix","(JJ)V", (void*) android_view_RenderNode_getInverseTransformMatrix },
+        {"nGetTransformMatrix", "(JJ)V", (void*)android_view_RenderNode_getTransformMatrix},
+        {"nGetInverseTransformMatrix", "(JJ)V",
+         (void*)android_view_RenderNode_getInverseTransformMatrix},
 
-    { "nGetPivotX",                "(J)F",  (void*) android_view_RenderNode_getPivotX },
-    { "nGetPivotY",                "(J)F",  (void*) android_view_RenderNode_getPivotY },
-    { "nGetWidth",                 "(J)I",  (void*) android_view_RenderNode_getWidth },
-    { "nGetHeight",                "(J)I",  (void*) android_view_RenderNode_getHeight },
-    { "nSetAllowForceDark",        "(JZ)Z", (void*) android_view_RenderNode_setAllowForceDark },
-    { "nGetAllowForceDark",        "(J)Z",  (void*) android_view_RenderNode_getAllowForceDark },
-    { "nGetUniqueId",              "(J)J",  (void*) android_view_RenderNode_getUniqueId },
+        {"nGetPivotX", "(J)F", (void*)android_view_RenderNode_getPivotX},
+        {"nGetPivotY", "(J)F", (void*)android_view_RenderNode_getPivotY},
+        {"nGetWidth", "(J)I", (void*)android_view_RenderNode_getWidth},
+        {"nGetHeight", "(J)I", (void*)android_view_RenderNode_getHeight},
+        {"nSetAllowForceDark", "(JZ)Z", (void*)android_view_RenderNode_setAllowForceDark},
+        {"nGetAllowForceDark", "(J)Z", (void*)android_view_RenderNode_getAllowForceDark},
+        {"nGetUniqueId", "(J)J", (void*)android_view_RenderNode_getUniqueId},
 };
 
 int register_android_view_RenderNode(JNIEnv* env) {
diff --git a/libs/hwui/pipeline/skia/RenderNodeDrawable.cpp b/libs/hwui/pipeline/skia/RenderNodeDrawable.cpp
index c010212..cb0ff8d 100644
--- a/libs/hwui/pipeline/skia/RenderNodeDrawable.cpp
+++ b/libs/hwui/pipeline/skia/RenderNodeDrawable.cpp
@@ -169,8 +169,8 @@
     displayList->mProjectedOutline = nullptr;
 }
 
-static bool layerNeedsPaint(const LayerProperties& properties, float alphaMultiplier,
-                            SkPaint* paint) {
+static bool layerNeedsPaint(const sk_sp<SkImage>& snapshotImage, const LayerProperties& properties,
+                            float alphaMultiplier, SkPaint* paint) {
     if (alphaMultiplier < 1.0f || properties.alpha() < 255 ||
         properties.xferMode() != SkBlendMode::kSrcOver || properties.getColorFilter() != nullptr ||
         properties.getImageFilter() != nullptr || !properties.getStretchEffect().isEmpty()) {
@@ -179,7 +179,8 @@
         paint->setColorFilter(sk_ref_sp(properties.getColorFilter()));
 
         sk_sp<SkImageFilter> imageFilter = sk_ref_sp(properties.getImageFilter());
-        sk_sp<SkImageFilter> stretchFilter = properties.getStretchEffect().getImageFilter();
+        sk_sp<SkImageFilter> stretchFilter =
+                properties.getStretchEffect().getImageFilter(snapshotImage);
         sk_sp<SkImageFilter> filter;
         if (imageFilter && stretchFilter) {
             filter = SkImageFilters::Compose(
@@ -240,7 +241,8 @@
         if (renderNode->getLayerSurface() && mComposeLayer) {
             SkASSERT(properties.effectiveLayerType() == LayerType::RenderLayer);
             SkPaint paint;
-            layerNeedsPaint(layerProperties, alphaMultiplier, &paint);
+            sk_sp<SkImage> snapshotImage = renderNode->getLayerSurface()->makeImageSnapshot();
+            layerNeedsPaint(snapshotImage, layerProperties, alphaMultiplier, &paint);
             SkSamplingOptions sampling(SkFilterMode::kLinear);
 
             // surfaces for layers are created on LAYER_SIZE boundaries (which are >= layer size) so
@@ -254,8 +256,8 @@
                 canvas->drawAnnotation(bounds, String8::format(
                     "SurfaceID|%" PRId64, renderNode->uniqueId()).c_str(), nullptr);
             }
-            canvas->drawImageRect(renderNode->getLayerSurface()->makeImageSnapshot(), bounds,
-                                  bounds, sampling, &paint, SkCanvas::kStrict_SrcRectConstraint);
+            canvas->drawImageRect(snapshotImage, bounds, bounds, sampling, &paint,
+                                  SkCanvas::kStrict_SrcRectConstraint);
 
             if (!renderNode->getSkiaLayer()->hasRenderedSinceRepaint) {
                 renderNode->getSkiaLayer()->hasRenderedSinceRepaint = true;
diff --git a/libs/hwui/renderthread/DrawFrameTask.cpp b/libs/hwui/renderthread/DrawFrameTask.cpp
index c9146b2..3408ffd 100644
--- a/libs/hwui/renderthread/DrawFrameTask.cpp
+++ b/libs/hwui/renderthread/DrawFrameTask.cpp
@@ -17,7 +17,7 @@
 #include "DrawFrameTask.h"
 
 #include <utils/Log.h>
-#include <utils/Trace.h>
+#include <utils/TraceUtils.h>
 
 #include "../DeferredLayerUpdater.h"
 #include "../DisplayList.h"
@@ -82,7 +82,8 @@
 }
 
 void DrawFrameTask::run() {
-    ATRACE_NAME("DrawFrame");
+    const int64_t vsyncId = mFrameInfo[static_cast<int>(FrameInfoIndex::FrameTimelineVsyncId)];
+    ATRACE_FORMAT("DrawFrames %" PRId64, vsyncId);
 
     bool canUnblockUiThread;
     bool canDrawThisFrame;
diff --git a/media/java/android/media/ImageReader.java b/media/java/android/media/ImageReader.java
index f5b204a..5656dff 100644
--- a/media/java/android/media/ImageReader.java
+++ b/media/java/android/media/ImageReader.java
@@ -16,6 +16,7 @@
 
 package android.media;
 
+import android.annotation.CallbackExecutor;
 import android.annotation.IntRange;
 import android.annotation.NonNull;
 import android.graphics.GraphicBuffer;
@@ -24,6 +25,7 @@
 import android.graphics.Rect;
 import android.hardware.HardwareBuffer;
 import android.hardware.HardwareBuffer.Usage;
+import android.hardware.camera2.MultiResolutionImageReader;
 import android.os.Handler;
 import android.os.Looper;
 import android.os.Message;
@@ -36,7 +38,9 @@
 import java.nio.ByteOrder;
 import java.nio.NioUtils;
 import java.util.List;
+import java.util.Objects;
 import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.concurrent.Executor;
 import java.util.concurrent.atomic.AtomicBoolean;
 
 /**
@@ -134,7 +138,8 @@
         // If the format is private don't default to USAGE_CPU_READ_OFTEN since it may not
         // work, and is inscrutable anyway
         return new ImageReader(width, height, format, maxImages,
-                format == ImageFormat.PRIVATE ? 0 : HardwareBuffer.USAGE_CPU_READ_OFTEN);
+                format == ImageFormat.PRIVATE ? 0 : HardwareBuffer.USAGE_CPU_READ_OFTEN,
+                /*parent*/ null);
     }
 
     /**
@@ -250,18 +255,37 @@
 //            throw new IllegalArgumentException("The given format=" + Integer.toHexString(format)
 //                + " & usage=" + Long.toHexString(usage) + " is not supported");
 //        }
-        return new ImageReader(width, height, format, maxImages, usage);
+        return new ImageReader(width, height, format, maxImages, usage, /*parent*/ null);
     }
 
+     /**
+      * @hide
+      */
+     public static @NonNull ImageReader newInstance(
+            @IntRange(from = 1) int width,
+            @IntRange(from = 1) int height,
+            @Format             int format,
+            @IntRange(from = 1) int maxImages,
+            @NonNull            MultiResolutionImageReader parent) {
+        // If the format is private don't default to USAGE_CPU_READ_OFTEN since it may not
+        // work, and is inscrutable anyway
+        return new ImageReader(width, height, format, maxImages,
+                format == ImageFormat.PRIVATE ? 0 : HardwareBuffer.USAGE_CPU_READ_OFTEN,
+                parent);
+    }
+
+
     /**
      * @hide
      */
-    protected ImageReader(int width, int height, int format, int maxImages, long usage) {
+    protected ImageReader(int width, int height, int format, int maxImages, long usage,
+            MultiResolutionImageReader parent) {
         mWidth = width;
         mHeight = height;
         mFormat = format;
         mUsage = usage;
         mMaxImages = maxImages;
+        mParent = parent;
 
         if (width < 1 || height < 1) {
             throw new IllegalArgumentException(
@@ -433,6 +457,9 @@
             if (image != null) {
                 image.close();
             }
+            if (mParent != null) {
+                mParent.flushOther(this);
+            }
         }
     }
 
@@ -584,12 +611,38 @@
                 }
                 if (mListenerHandler == null || mListenerHandler.getLooper() != looper) {
                     mListenerHandler = new ListenerHandler(looper);
+                    mListenerExecutor = new HandlerExecutor(mListenerHandler);
                 }
-                mListener = listener;
             } else {
-                mListener = null;
                 mListenerHandler = null;
+                mListenerExecutor = null;
             }
+            mListener = listener;
+        }
+    }
+
+    /**
+     * Register a listener to be invoked when a new image becomes available
+     * from the ImageReader.
+     *
+     * @param listener
+     *            The listener that will be run.
+     * @param executor
+     *            The executor which will be used to invoke the listener.
+     * @throws IllegalArgumentException
+     *            If no handler specified and the calling thread has no looper.
+     *
+     * @hide
+     */
+    public void setOnImageAvailableListenerWithExecutor(@NonNull OnImageAvailableListener listener,
+            @NonNull Executor executor) {
+        if (executor == null) {
+            throw new IllegalArgumentException("executor must not be null");
+        }
+
+        synchronized (mListenerLock) {
+            mListenerExecutor = executor;
+            mListener = listener;
         }
     }
 
@@ -763,12 +816,27 @@
             return;
         }
 
-        final Handler handler;
+        final Executor executor;
+        final OnImageAvailableListener listener;
         synchronized (ir.mListenerLock) {
-            handler = ir.mListenerHandler;
+            executor = ir.mListenerExecutor;
+            listener = ir.mListener;
         }
-        if (handler != null) {
-            handler.sendEmptyMessage(0);
+        final boolean isReaderValid;
+        synchronized (ir.mCloseLock) {
+            isReaderValid = ir.mIsReaderValid;
+        }
+
+        // It's dangerous to fire onImageAvailable() callback when the ImageReader
+        // is being closed, as application could acquire next image in the
+        // onImageAvailable() callback.
+        if (executor != null && listener != null && isReaderValid) {
+            executor.execute(new Runnable() {
+                @Override
+                public void run() {
+                    listener.onImageAvailable(ir);
+                }
+            });
         }
     }
 
@@ -785,11 +853,16 @@
     private final Object mCloseLock = new Object();
     private boolean mIsReaderValid = false;
     private OnImageAvailableListener mListener;
+    private Executor mListenerExecutor;
     private ListenerHandler mListenerHandler;
     // Keep track of the successfully acquired Images. This need to be thread safe as the images
     // could be closed by different threads (e.g., application thread and GC thread).
     private List<Image> mAcquiredImages = new CopyOnWriteArrayList<>();
 
+    // Applicable if this isn't a standalone ImageReader, but belongs to a
+    // MultiResolutionImageReader.
+    private final MultiResolutionImageReader mParent;
+
     /**
      * This field is used by native code, do not access or modify.
      */
@@ -802,23 +875,22 @@
         public ListenerHandler(Looper looper) {
             super(looper, null, true /*async*/);
         }
+    }
+
+    /**
+     * An adapter {@link Executor} that posts all executed tasks onto the
+     * given {@link Handler}.
+     **/
+    private final class HandlerExecutor implements Executor {
+        private final Handler mHandler;
+
+        public HandlerExecutor(@NonNull Handler handler) {
+            mHandler = Objects.requireNonNull(handler);
+        }
 
         @Override
-        public void handleMessage(Message msg) {
-            OnImageAvailableListener listener;
-            synchronized (mListenerLock) {
-                listener = mListener;
-            }
-
-            // It's dangerous to fire onImageAvailable() callback when the ImageReader is being
-            // closed, as application could acquire next image in the onImageAvailable() callback.
-            boolean isReaderValid = false;
-            synchronized (mCloseLock) {
-                isReaderValid = mIsReaderValid;
-            }
-            if (listener != null && isReaderValid) {
-                listener.onImageAvailable(ImageReader.this);
-            }
+        public void execute(Runnable command) {
+            mHandler.post(command);
         }
     }
 
diff --git a/media/jni/android_media_MediaCodecList.cpp b/media/jni/android_media_MediaCodecList.cpp
index 307d80d..07866ac 100644
--- a/media/jni/android_media_MediaCodecList.cpp
+++ b/media/jni/android_media_MediaCodecList.cpp
@@ -105,6 +105,7 @@
             // This should never happen unless something is really wrong
             jniThrowException(
                         env, "java/lang/RuntimeException", "cannot get MediaCodecList");
+            return NULL;
         }
 
         sListWrapper.reset(new JavaMediaCodecListWrapper(mcl));
diff --git a/packages/Connectivity/framework/api/module-lib-current.txt b/packages/Connectivity/framework/api/module-lib-current.txt
index a9fd6f2..d2ed73e 100644
--- a/packages/Connectivity/framework/api/module-lib-current.txt
+++ b/packages/Connectivity/framework/api/module-lib-current.txt
@@ -6,6 +6,7 @@
   }
 
   public class ConnectivityManager {
+    method @NonNull @RequiresPermission(anyOf={android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK, android.Manifest.permission.NETWORK_STACK, android.Manifest.permission.NETWORK_SETTINGS}) public java.util.List<android.net.NetworkStateSnapshot> getAllNetworkStateSnapshot();
     method @RequiresPermission(anyOf={android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK, android.Manifest.permission.NETWORK_SETTINGS}) public void registerSystemDefaultNetworkCallback(@NonNull android.net.ConnectivityManager.NetworkCallback, @NonNull android.os.Handler);
     method @RequiresPermission(anyOf={android.Manifest.permission.NETWORK_SETTINGS, android.Manifest.permission.NETWORK_STACK, android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK}) public void requestBackgroundNetwork(@NonNull android.net.NetworkRequest, @Nullable android.os.Handler, @NonNull android.net.ConnectivityManager.NetworkCallback);
     method @RequiresPermission(anyOf={android.Manifest.permission.MANAGE_TEST_NETWORKS, android.Manifest.permission.NETWORK_STACK}) public void simulateDataStall(int, long, @NonNull android.net.Network, @NonNull android.os.PersistableBundle);
diff --git a/packages/Connectivity/framework/src/android/net/ConnectivityManager.java b/packages/Connectivity/framework/src/android/net/ConnectivityManager.java
index 39ec2edc..d7c6854 100644
--- a/packages/Connectivity/framework/src/android/net/ConnectivityManager.java
+++ b/packages/Connectivity/framework/src/android/net/ConnectivityManager.java
@@ -1259,6 +1259,25 @@
     }
 
     /**
+     * Return a list of {@link NetworkStateSnapshot}s, one for each network that is currently
+     * connected.
+     * @hide
+     */
+    @SystemApi(client = MODULE_LIBRARIES)
+    @RequiresPermission(anyOf = {
+            NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK,
+            android.Manifest.permission.NETWORK_STACK,
+            android.Manifest.permission.NETWORK_SETTINGS})
+    @NonNull
+    public List<NetworkStateSnapshot> getAllNetworkStateSnapshot() {
+        try {
+            return mService.getAllNetworkStateSnapshot();
+        } catch (RemoteException e) {
+            throw e.rethrowFromSystemServer();
+        }
+    }
+
+    /**
      * Returns the {@link Network} object currently serving a given type, or
      * null if the given type is not connected.
      *
diff --git a/packages/Connectivity/framework/src/android/net/IConnectivityManager.aidl b/packages/Connectivity/framework/src/android/net/IConnectivityManager.aidl
index 160338d..cd49258 100644
--- a/packages/Connectivity/framework/src/android/net/IConnectivityManager.aidl
+++ b/packages/Connectivity/framework/src/android/net/IConnectivityManager.aidl
@@ -31,6 +31,7 @@
 import android.net.NetworkInfo;
 import android.net.NetworkRequest;
 import android.net.NetworkState;
+import android.net.NetworkStateSnapshot;
 import android.net.OemNetworkPreferences;
 import android.net.ProxyInfo;
 import android.net.UidRange;
@@ -79,6 +80,8 @@
     @UnsupportedAppUsage(maxTargetSdk = 30, trackingBug = 170729553)
     NetworkState[] getAllNetworkState();
 
+    List<NetworkStateSnapshot> getAllNetworkStateSnapshot();
+
     boolean isActiveNetworkMetered();
 
     boolean requestRouteToHostAddress(int networkType, in byte[] hostAddress,
diff --git a/core/java/android/net/NetworkState.java b/packages/Connectivity/framework/src/android/net/NetworkState.java
similarity index 97%
rename from core/java/android/net/NetworkState.java
rename to packages/Connectivity/framework/src/android/net/NetworkState.java
index 813fde1..d010265 100644
--- a/core/java/android/net/NetworkState.java
+++ b/packages/Connectivity/framework/src/android/net/NetworkState.java
@@ -115,7 +115,8 @@
     }
 
     @UnsupportedAppUsage
-    public static final @android.annotation.NonNull Creator<NetworkState> CREATOR = new Creator<NetworkState>() {
+    @NonNull
+    public static final Creator<NetworkState> CREATOR = new Creator<NetworkState>() {
         @Override
         public NetworkState createFromParcel(Parcel in) {
             return new NetworkState(in);
diff --git a/packages/Connectivity/framework/src/android/net/util/MultinetworkPolicyTracker.java b/packages/Connectivity/framework/src/android/net/util/MultinetworkPolicyTracker.java
index 43fffd7..739ddad 100644
--- a/packages/Connectivity/framework/src/android/net/util/MultinetworkPolicyTracker.java
+++ b/packages/Connectivity/framework/src/android/net/util/MultinetworkPolicyTracker.java
@@ -30,8 +30,8 @@
 import android.net.Uri;
 import android.os.Handler;
 import android.provider.Settings;
-import android.telephony.PhoneStateListener;
 import android.telephony.SubscriptionManager;
+import android.telephony.TelephonyCallback;
 import android.telephony.TelephonyManager;
 import android.util.Log;
 
@@ -92,8 +92,8 @@
     }
 
     @VisibleForTesting
-    protected class ActiveDataSubscriptionIdChangedListener extends PhoneStateListener
-            implements PhoneStateListener.ActiveDataSubscriptionIdChangedListener {
+    protected class ActiveDataSubscriptionIdListener extends TelephonyCallback
+            implements TelephonyCallback.ActiveDataSubscriptionIdListener {
         @Override
         public void onActiveDataSubscriptionIdChanged(int subId) {
             mActiveSubId = subId;
@@ -121,8 +121,8 @@
             }
         };
 
-        ctx.getSystemService(TelephonyManager.class).registerPhoneStateListener(
-                new HandlerExecutor(handler), new ActiveDataSubscriptionIdChangedListener());
+        ctx.getSystemService(TelephonyManager.class).registerTelephonyCallback(
+                new HandlerExecutor(handler), new ActiveDataSubscriptionIdListener());
 
         updateAvoidBadWifi();
         updateMeteredMultipathPreference();
diff --git a/packages/SettingsLib/res/values/strings.xml b/packages/SettingsLib/res/values/strings.xml
index 9624119..efa9f3c 100644
--- a/packages/SettingsLib/res/values/strings.xml
+++ b/packages/SettingsLib/res/values/strings.xml
@@ -64,8 +64,12 @@
     <string name="wifi_security_eap" translatable="false">WPA/WPA2/WPA3-Enterprise</string>
     <!-- Do not translate.  Concise terminology for wifi with WPA 802.1x EAP security -->
     <string name="wifi_security_eap_wpa" translatable="false">WPA-Enterprise</string>
+    <!-- Do not translate.  Concise terminology for wifi with 802.1x EAP security -->
+    <string name="wifi_security_eap_wpa_wpa2" translatable="false">WPA/WPA2-Enterprise</string>
     <!-- Do not translate.  Concise terminology for wifi with WPA2/WPA3 802.1x EAP security -->
     <string name="wifi_security_eap_wpa2_wpa3" translatable="false">WPA2/WPA3-Enterprise</string>
+    <!-- Do not translate.  Concise terminology for wifi with WPA3 802.1x EAP security -->
+    <string name="wifi_security_eap_wpa3" translatable="false">WPA3-Enterprise</string>
     <!-- Do not translate.  Concise terminology for Passpoint network -->
     <string name="wifi_security_passpoint" translatable="false">Passpoint</string>
     <!-- Do not translate.  Terminology for wifi with WPA3 security -->
diff --git a/packages/SettingsLib/src/com/android/settingslib/connectivity/ConnectivitySubsystemsRecoveryManager.java b/packages/SettingsLib/src/com/android/settingslib/connectivity/ConnectivitySubsystemsRecoveryManager.java
index 43717ab..dfde3c7 100644
--- a/packages/SettingsLib/src/com/android/settingslib/connectivity/ConnectivitySubsystemsRecoveryManager.java
+++ b/packages/SettingsLib/src/com/android/settingslib/connectivity/ConnectivitySubsystemsRecoveryManager.java
@@ -27,7 +27,7 @@
 import android.os.Handler;
 import android.os.HandlerExecutor;
 import android.provider.Settings;
-import android.telephony.PhoneStateListener;
+import android.telephony.TelephonyCallback;
 import android.telephony.TelephonyManager;
 import android.util.Log;
 
@@ -72,7 +72,10 @@
             checkIfAllSubsystemsRestartsAreDone();
         }
     };
-    private final PhoneStateListener mPhoneStateListener = new PhoneStateListener() {
+    private final MobileTelephonyCallback mTelephonyCallback = new MobileTelephonyCallback();
+
+    private class MobileTelephonyCallback extends TelephonyCallback implements
+            TelephonyCallback.RadioPowerStateListener {
         @Override
         public void onRadioPowerStateChanged(int state) {
             if (!mTelephonyRestartInProgress || mCurrentRecoveryCallback == null) {
@@ -85,7 +88,7 @@
                 checkIfAllSubsystemsRestartsAreDone();
             }
         }
-    };
+    }
 
     public ConnectivitySubsystemsRecoveryManager(@NonNull Context context,
             @NonNull Handler handler) {
@@ -201,12 +204,12 @@
     }
 
     private void startTrackingTelephonyRestart() {
-        mTelephonyManager.registerPhoneStateListener(new HandlerExecutor(mHandler),
-                mPhoneStateListener);
+        mTelephonyManager.registerTelephonyCallback(new HandlerExecutor(mHandler),
+                mTelephonyCallback);
     }
 
     private void stopTrackingTelephonyRestart() {
-        mTelephonyManager.unregisterPhoneStateListener(mPhoneStateListener);
+        mTelephonyManager.unregisterTelephonyCallback(mTelephonyCallback);
     }
 
     private void checkIfAllSubsystemsRestartsAreDone() {
diff --git a/packages/SettingsLib/src/com/android/settingslib/mobile/MobileStatusTracker.java b/packages/SettingsLib/src/com/android/settingslib/mobile/MobileStatusTracker.java
index 0cd5e4d..1a08366 100644
--- a/packages/SettingsLib/src/com/android/settingslib/mobile/MobileStatusTracker.java
+++ b/packages/SettingsLib/src/com/android/settingslib/mobile/MobileStatusTracker.java
@@ -17,11 +17,11 @@
 
 import android.os.Handler;
 import android.os.Looper;
-import android.telephony.PhoneStateListener;
 import android.telephony.ServiceState;
 import android.telephony.SignalStrength;
 import android.telephony.SubscriptionInfo;
 import android.telephony.SubscriptionManager;
+import android.telephony.TelephonyCallback;
 import android.telephony.TelephonyDisplayInfo;
 import android.telephony.TelephonyManager;
 import android.util.Log;
@@ -40,9 +40,9 @@
     private final SubscriptionInfo mSubscriptionInfo;
     private final Callback mCallback;
     private final MobileStatus mMobileStatus;
-    private final PhoneStateListener mPhoneStateListener;
     private final SubscriptionDefaults mDefaults;
     private final Handler mReceiverHandler;
+    private final MobileTelephonyCallback mTelephonyCallback;
 
     /**
      * MobileStatusTracker constructors
@@ -58,7 +58,7 @@
             SubscriptionInfo info, SubscriptionDefaults defaults, Callback callback) {
         mPhone = phone;
         mReceiverHandler = new Handler(receiverLooper);
-        mPhoneStateListener = new MobilePhoneStateListener();
+        mTelephonyCallback = new MobileTelephonyCallback();
         mSubscriptionInfo = info;
         mDefaults = defaults;
         mCallback = callback;
@@ -68,8 +68,8 @@
                 /* updateTelephony= */false, new MobileStatus(mMobileStatus)));
     }
 
-    public PhoneStateListener getPhoneStateListener() {
-        return mPhoneStateListener;
+    public MobileTelephonyCallback getTelephonyCallback() {
+        return mTelephonyCallback;
     }
 
     /**
@@ -77,9 +77,9 @@
      */
     public void setListening(boolean listening) {
         if (listening) {
-            mPhone.registerPhoneStateListener(mReceiverHandler::post, mPhoneStateListener);
+            mPhone.registerTelephonyCallback(mReceiverHandler::post, mTelephonyCallback);
         } else {
-            mPhone.unregisterPhoneStateListener(mPhoneStateListener);
+            mPhone.unregisterTelephonyCallback(mTelephonyCallback);
         }
     }
 
@@ -106,15 +106,14 @@
                 || activity == TelephonyManager.DATA_ACTIVITY_OUT;
     }
 
-    private class MobilePhoneStateListener extends PhoneStateListener implements
-            PhoneStateListener.ServiceStateChangedListener,
-            PhoneStateListener.SignalStrengthsChangedListener,
-            PhoneStateListener.CallStateChangedListener,
-            PhoneStateListener.DataConnectionStateChangedListener,
-            PhoneStateListener.DataActivityListener,
-            PhoneStateListener.CarrierNetworkChangeListener,
-            PhoneStateListener.ActiveDataSubscriptionIdChangedListener,
-            PhoneStateListener.DisplayInfoChangedListener{
+    public class MobileTelephonyCallback extends TelephonyCallback implements
+            TelephonyCallback.ServiceStateListener,
+            TelephonyCallback.SignalStrengthsListener,
+            TelephonyCallback.DataConnectionStateListener,
+            TelephonyCallback.DataActivityListener,
+            TelephonyCallback.CarrierNetworkListener,
+            TelephonyCallback.ActiveDataSubscriptionIdListener,
+            TelephonyCallback.DisplayInfoListener{
 
         @Override
         public void onSignalStrengthsChanged(SignalStrength signalStrength) {
diff --git a/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java b/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java
index a81a05f..303ee3c 100644
--- a/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java
+++ b/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java
@@ -223,7 +223,8 @@
     public static final int SECURITY_OWE = 4;
     public static final int SECURITY_SAE = 5;
     public static final int SECURITY_EAP_SUITE_B = 6;
-    public static final int SECURITY_MAX_VAL = 7; // Has to be the last
+    public static final int SECURITY_EAP_WPA3_ENTERPRISE = 7;
+    public static final int SECURITY_MAX_VAL = 8; // Has to be the last
 
     private static final int PSK_UNKNOWN = 0;
     private static final int PSK_WPA = 1;
diff --git a/packages/SystemUI/res/layout/udfps_animation_view_bp.xml b/packages/SystemUI/res/layout/udfps_animation_view_bp.xml
new file mode 100644
index 0000000..0cfbf2e
--- /dev/null
+++ b/packages/SystemUI/res/layout/udfps_animation_view_bp.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2021 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<com.android.systemui.biometrics.UdfpsAnimationViewBp
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/udfps_animation_view"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+</com.android.systemui.biometrics.UdfpsAnimationViewBp>
diff --git a/packages/SystemUI/res/values/colors.xml b/packages/SystemUI/res/values/colors.xml
index 3bc1c80..b3fca36 100644
--- a/packages/SystemUI/res/values/colors.xml
+++ b/packages/SystemUI/res/values/colors.xml
@@ -183,7 +183,9 @@
     <color name="biometric_dialog_error">#ffd93025</color>                  <!-- red 600 -->
 
     <!-- UDFPS colors -->
-    <color name="udfps_enroll_icon">#000000</color> <!-- 100% black -->
+    <color name="udfps_enroll_icon">#000000</color>                         <!-- 100% black -->
+    <color name="udfps_moving_target_fill">#cc4285f4</color>                <!-- 80% blue -->
+    <color name="udfps_moving_target_stroke">#ff669DF6</color>              <!-- 100% blue -->
 
     <!-- Logout button -->
     <color name="logout_button_bg_color">#ccffffff</color>
diff --git a/packages/SystemUI/shared/src/com/android/systemui/shared/recents/ISplitScreenListener.aidl b/packages/SystemUI/shared/src/com/android/systemui/shared/recents/ISplitScreenListener.aidl
index e5ced3e..54242be 100644
--- a/packages/SystemUI/shared/src/com/android/systemui/shared/recents/ISplitScreenListener.aidl
+++ b/packages/SystemUI/shared/src/com/android/systemui/shared/recents/ISplitScreenListener.aidl
@@ -21,5 +21,5 @@
  */
 oneway interface ISplitScreenListener {
     void onStagePositionChanged(int stage, int position);
-    void onTaskStageChanged(int taskId, int stage);
-}
\ No newline at end of file
+    void onTaskStageChanged(int taskId, int stage, boolean visible);
+}
diff --git a/packages/SystemUI/shared/src/com/android/systemui/shared/recents/ISystemUiProxy.aidl b/packages/SystemUI/shared/src/com/android/systemui/shared/recents/ISystemUiProxy.aidl
index 5c943f6..bac4c43 100644
--- a/packages/SystemUI/shared/src/com/android/systemui/shared/recents/ISystemUiProxy.aidl
+++ b/packages/SystemUI/shared/src/com/android/systemui/shared/recents/ISystemUiProxy.aidl
@@ -19,6 +19,7 @@
 import android.app.PendingIntent;
 import android.app.PictureInPictureParams;
 import android.content.ComponentName;
+import android.content.Intent;
 import android.content.pm.ActivityInfo;
 import android.graphics.Bitmap;
 import android.graphics.Insets;
@@ -34,7 +35,7 @@
 
 /**
  * Temporary callbacks into SystemUI.
- * Next id = 30
+ * Next id = 43
  */
 interface ISystemUiProxy {
 
@@ -251,5 +252,7 @@
     void startShortcut(in String packageName, in String shortcutId, in int stage, in int position,
             in Bundle options, in UserHandle user) = 40;
     void startIntent(
-            in PendingIntent intent, in int stage, in int position, in Bundle options) = 41;
+            in PendingIntent intent, in Intent fillInIntent, in int stage, in int position,
+            in Bundle options) = 41;
+    void removeFromSideStage(in int taskId) = 42;
 }
diff --git a/packages/SystemUI/shared/src/com/android/systemui/shared/system/RemoteAnimationAdapterCompat.java b/packages/SystemUI/shared/src/com/android/systemui/shared/system/RemoteAnimationAdapterCompat.java
index e6477f1..400bf15 100644
--- a/packages/SystemUI/shared/src/com/android/systemui/shared/system/RemoteAnimationAdapterCompat.java
+++ b/packages/SystemUI/shared/src/com/android/systemui/shared/system/RemoteAnimationAdapterCompat.java
@@ -113,17 +113,6 @@
                 // TODO(bc-unlock): Build wrapped object for non-apps target.
                 final RemoteAnimationTargetCompat[] nonAppsCompat =
                         new RemoteAnimationTargetCompat[0];
-                final Runnable animationFinishedCallback = new Runnable() {
-                    @Override
-                    public void run() {
-                        try {
-                            finishCallback.onTransitionFinished(null /* wct */);
-                        } catch (RemoteException e) {
-                            Log.e("ActivityOptionsCompat", "Failed to call app controlled animation"
-                                    + " finished callback", e);
-                        }
-                    }
-                };
 
                 // TODO(b/177438007): Move this set-up logic into launcher's animation impl.
                 boolean isReturnToHome = false;
@@ -143,8 +132,8 @@
                         final TransitionInfo.Change change = info.getChanges().get(i);
                         final SurfaceControl leash = change.getLeash();
                         final int mode = info.getChanges().get(i).getMode();
-                        // Only deal with roots
-                        if (change.getParent() != null) continue;
+                        // Only deal with independent layers
+                        if (!TransitionInfo.isIndependent(change, info)) continue;
                         if (mode == TRANSIT_CLOSE || mode == TRANSIT_TO_BACK) {
                             t.setLayer(leash, info.getChanges().size() * 3 - i);
                         }
@@ -156,6 +145,18 @@
                     }
                 }
                 t.apply();
+
+                final Runnable animationFinishedCallback = new Runnable() {
+                    @Override
+                    public void run() {
+                        try {
+                            finishCallback.onTransitionFinished(null /* wct */);
+                        } catch (RemoteException e) {
+                            Log.e("ActivityOptionsCompat", "Failed to call app controlled animation"
+                                    + " finished callback", e);
+                        }
+                    }
+                };
                 // TODO(bc-unlcok): Pass correct transit type.
                 remoteAnimationAdapter.onAnimationStart(
                         TRANSIT_OLD_NONE,
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimation.java b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimation.java
index a029003..a51b6fd1 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimation.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimation.java
@@ -17,6 +17,7 @@
 package com.android.systemui.biometrics;
 
 import android.content.Context;
+import android.graphics.Rect;
 import android.graphics.RectF;
 import android.graphics.drawable.Drawable;
 import android.view.View;
@@ -46,12 +47,17 @@
     }
 
     public void onSensorRectUpdated(@NonNull RectF sensorRect) {
-        int margin =  (int) (sensorRect.bottom - sensorRect.top) / 5;
-        mFingerprintDrawable.setBounds(
-                (int) sensorRect.left + margin,
+        final int margin =  (int) sensorRect.height() / 8;
+
+        final Rect bounds = new Rect((int) sensorRect.left + margin,
                 (int) sensorRect.top + margin,
                 (int) sensorRect.right - margin,
                 (int) sensorRect.bottom - margin);
+        updateFingerprintIconBounds(bounds);
+    }
+
+    protected void updateFingerprintIconBounds(@NonNull Rect bounds) {
+        mFingerprintDrawable.setBounds(bounds);
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationEnroll.java b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationEnroll.java
index 28b5719..015a598 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationEnroll.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationEnroll.java
@@ -22,13 +22,14 @@
 import android.graphics.Color;
 import android.graphics.ColorFilter;
 import android.graphics.Paint;
+import android.graphics.PointF;
+import android.graphics.Rect;
 import android.graphics.RectF;
-import android.util.Log;
+import android.graphics.drawable.Drawable;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
-import com.android.settingslib.Utils;
 import com.android.systemui.R;
 
 /**
@@ -40,9 +41,13 @@
     private static final float SHADOW_RADIUS = 5.f;
     private static final float PROGRESS_BAR_RADIUS = 140.f;
 
-    @Nullable private RectF mSensorRect;
+    @NonNull private final Drawable mMovingTargetFpIcon;
     @NonNull private final Paint mSensorPaint;
-    private final int mNotificationShadeColor;
+    @NonNull private final Paint mBlueFill;
+    @NonNull private final Paint mBlueStroke;;
+
+    @Nullable private RectF mSensorRect;
+    @Nullable private UdfpsEnrollHelper mEnrollHelper;
 
     UdfpsAnimationEnroll(@NonNull Context context) {
         super(context);
@@ -53,8 +58,24 @@
         mSensorPaint.setShadowLayer(SHADOW_RADIUS, 0, 0, Color.BLACK);
         mSensorPaint.setStyle(Paint.Style.FILL);
 
-        mNotificationShadeColor = Utils.getColorAttr(context,
-                android.R.attr.colorBackgroundFloating).getDefaultColor();
+        mBlueFill = new Paint(0 /* flags */);
+        mBlueFill.setAntiAlias(true);
+        mBlueFill.setColor(context.getColor(R.color.udfps_moving_target_fill));
+        mBlueFill.setStyle(Paint.Style.FILL);
+
+        mBlueStroke = new Paint(0 /* flags */);
+        mBlueStroke.setAntiAlias(true);
+        mBlueStroke.setColor(context.getColor(R.color.udfps_moving_target_stroke));
+        mBlueStroke.setStyle(Paint.Style.STROKE);
+        mBlueStroke.setStrokeWidth(12);
+
+        mMovingTargetFpIcon = context.getResources().getDrawable(R.drawable.ic_fingerprint, null);
+        mMovingTargetFpIcon.setTint(Color.WHITE);
+        mMovingTargetFpIcon.mutate();
+    }
+
+    void setEnrollHelper(@NonNull UdfpsEnrollHelper helper) {
+        mEnrollHelper = helper;
     }
 
     @Override
@@ -74,6 +95,12 @@
     }
 
     @Override
+    protected void updateFingerprintIconBounds(@NonNull Rect bounds) {
+        super.updateFingerprintIconBounds(bounds);
+        mMovingTargetFpIcon.setBounds(bounds);
+    }
+
+    @Override
     public void draw(@NonNull Canvas canvas) {
         if (isIlluminationShowing()) {
             return;
@@ -87,6 +114,24 @@
             }
         }
         mFingerprintDrawable.draw(canvas);
+
+        // Draw moving target
+        if (mEnrollHelper.isCenterEnrollmentComplete()) {
+            mFingerprintDrawable.setAlpha(64);
+
+            canvas.save();
+            final PointF point = mEnrollHelper.getNextGuidedEnrollmentPoint();
+            canvas.translate(point.x, point.y);
+            if (mSensorRect != null) {
+                canvas.drawOval(mSensorRect, mBlueFill);
+                canvas.drawOval(mSensorRect, mBlueStroke);
+            }
+
+            mMovingTargetFpIcon.draw(canvas);
+            canvas.restore();
+        } else {
+            mFingerprintDrawable.setAlpha(255);
+        }
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationView.java b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationView.java
index f4dd181..43ecf67 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationView.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationView.java
@@ -20,6 +20,7 @@
 import android.annotation.Nullable;
 import android.content.Context;
 import android.graphics.Canvas;
+import android.graphics.PointF;
 import android.graphics.RectF;
 import android.util.AttributeSet;
 import android.widget.FrameLayout;
@@ -62,7 +63,10 @@
     @Override
     protected void onDetachedFromWindow() {
         super.onDetachedFromWindow();
-        getUdfpsAnimation().onDestroy();
+
+        if (getUdfpsAnimation() != null) {
+            getUdfpsAnimation().onDestroy();
+        }
     }
 
     private int expansionToAlpha(float expansion) {
@@ -78,11 +82,19 @@
     }
 
     void onIlluminationStarting() {
+        if (getUdfpsAnimation() == null) {
+            return;
+        }
+
         getUdfpsAnimation().setIlluminationShowing(true);
         postInvalidate();
     }
 
     void onIlluminationStopped() {
+        if (getUdfpsAnimation() == null) {
+            return;
+        }
+
         getUdfpsAnimation().setIlluminationShowing(false);
         postInvalidate();
     }
@@ -131,4 +143,14 @@
         }
         return getUdfpsAnimation().getPaddingY();
     }
+
+    /**
+     * @return the amount of translation needed if the view currently requires the user to touch
+     *         somewhere other than the exact center of the sensor. For example, this can happen
+     *         during guided enrollment.
+     */
+    @NonNull
+    PointF getTouchTranslation() {
+        return new PointF(0, 0);
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationViewBp.java b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationViewBp.java
new file mode 100644
index 0000000..515b442
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationViewBp.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.biometrics;
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+import androidx.annotation.Nullable;
+
+/**
+ * Class that coordinates non-HBM animations during BiometricPrompt.
+ *
+ * Note that {@link AuthBiometricUdfpsView} also shows UDFPS animations. At some point we should
+ * de-dupe this if necessary. This will probably happen once the top-level TODO in UdfpsController
+ * is completed (inflate operation-specific views, instead of inflating generic udfps_view and
+ * adding operation-specific animations to it).
+ */
+public class UdfpsAnimationViewBp extends UdfpsAnimationView {
+    public UdfpsAnimationViewBp(Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Nullable
+    @Override
+    protected UdfpsAnimation getUdfpsAnimation() {
+        return null;
+    }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationViewEnroll.java b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationViewEnroll.java
index 19e77493..543df33 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationViewEnroll.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationViewEnroll.java
@@ -19,6 +19,7 @@
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.content.Context;
+import android.graphics.PointF;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.view.View;
@@ -33,7 +34,7 @@
 
     private static final String TAG = "UdfpsAnimationViewEnroll";
 
-    @NonNull private UdfpsAnimation mUdfpsAnimation;
+    @NonNull private UdfpsAnimationEnroll mUdfpsAnimation;
     @NonNull private UdfpsProgressBar mProgressBar;
     @Nullable private UdfpsEnrollHelper mEnrollHelper;
 
@@ -50,6 +51,7 @@
 
     public void setEnrollHelper(@NonNull UdfpsEnrollHelper helper) {
         mEnrollHelper = helper;
+        mUdfpsAnimation.setEnrollHelper(helper);
     }
 
     @Override
@@ -81,4 +83,14 @@
 
         mProgressBar.setProgress(interpolatedProgress, true);
     }
+
+    @NonNull
+    @Override
+    PointF getTouchTranslation() {
+        if (!mEnrollHelper.isCenterEnrollmentComplete()) {
+            return new PointF(0, 0);
+        } else {
+            return mEnrollHelper.getNextGuidedEnrollmentPoint();
+        }
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsController.java b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsController.java
index e1d7eb3..852cdcb 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsController.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsController.java
@@ -97,7 +97,7 @@
         public void showUdfpsOverlay(int sensorId, int reason) {
             if (reason == IUdfpsOverlayController.REASON_ENROLL_FIND_SENSOR
                     || reason == IUdfpsOverlayController.REASON_ENROLL_ENROLLING) {
-                mEnrollHelper = new UdfpsEnrollHelper(reason);
+                mEnrollHelper = new UdfpsEnrollHelper(mContext, reason);
             } else {
                 mEnrollHelper = null;
             }
@@ -231,6 +231,9 @@
 
     @Override
     public void dozeTimeTick() {
+        if (mView == null) {
+            return;
+        }
         mView.dozeTimeTick();
     }
 
@@ -358,23 +361,29 @@
         switch (reason) {
             case IUdfpsOverlayController.REASON_ENROLL_FIND_SENSOR:
             case IUdfpsOverlayController.REASON_ENROLL_ENROLLING: {
-                final UdfpsAnimationViewEnroll animation = (UdfpsAnimationViewEnroll)
+                final UdfpsAnimationViewEnroll view = (UdfpsAnimationViewEnroll)
                         inflater.inflate(R.layout.udfps_animation_view_enroll, null, false);
-                animation.setEnrollHelper(mEnrollHelper);
-                return animation;
+                view.setEnrollHelper(mEnrollHelper);
+                return view;
+            }
+
+            case IUdfpsOverlayController.REASON_AUTH_BP: {
+                final UdfpsAnimationViewBp view = (UdfpsAnimationViewBp)
+                        inflater.inflate(R.layout.udfps_animation_view_bp, null, false);
+                return view;
             }
 
             case IUdfpsOverlayController.REASON_AUTH_FPM_KEYGUARD: {
-                final UdfpsAnimationViewKeyguard animation = (UdfpsAnimationViewKeyguard)
+                final UdfpsAnimationViewKeyguard view = (UdfpsAnimationViewKeyguard)
                         inflater.inflate(R.layout.udfps_animation_view_keyguard, null, false);
-                animation.setStatusBarStateController(mStatusBarStateController);
-                return animation;
+                view.setStatusBarStateController(mStatusBarStateController);
+                return view;
             }
 
             case IUdfpsOverlayController.REASON_AUTH_FPM_OTHER: {
-                final UdfpsAnimationViewFpmOther animation = (UdfpsAnimationViewFpmOther)
+                final UdfpsAnimationViewFpmOther view = (UdfpsAnimationViewFpmOther)
                         inflater.inflate(R.layout.udfps_animation_view_fpm_other, null, false);
-                return animation;
+                return view;
             }
 
             default:
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollHelper.java b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollHelper.java
index 942fa7a..14eca1b 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollHelper.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollHelper.java
@@ -18,7 +18,13 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.content.Context;
+import android.graphics.PointF;
 import android.hardware.fingerprint.IUdfpsOverlayController;
+import android.util.TypedValue;
+
+import java.util.ArrayList;
+import java.util.List;
 
 /**
  * Helps keep track of enrollment state and animates the progress bar accordingly.
@@ -26,20 +32,48 @@
 public class UdfpsEnrollHelper {
     private static final String TAG = "UdfpsEnrollHelper";
 
+    // Enroll with two center touches before going to guided enrollment
+    private static final int NUM_CENTER_TOUCHES = 2;
+
     interface Listener {
         void onEnrollmentProgress(int remaining, int totalSteps);
     }
 
     // IUdfpsOverlayController reason
     private final int mEnrollReason;
+    private final List<PointF> mGuidedEnrollmentPoints;
 
     private int mTotalSteps = -1;
-    private int mCurrentProgress = 0;
+    private int mRemainingSteps = -1;
+
+    // Note that this is actually not equal to "mTotalSteps - mRemainingSteps", because the
+    // interface makes no promises about monotonically increasing by one each time.
+    private int mLocationsEnrolled = 0;
 
     @Nullable Listener mListener;
 
-    public UdfpsEnrollHelper(int reason) {
+    public UdfpsEnrollHelper(@NonNull Context context, int reason) {
         mEnrollReason = reason;
+        mGuidedEnrollmentPoints = new ArrayList<>();
+
+        // Number of pixels per mm
+        float px = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_MM, 1,
+                context.getResources().getDisplayMetrics());
+
+        mGuidedEnrollmentPoints.add(new PointF( 2.00f * px,  0.00f * px));
+        mGuidedEnrollmentPoints.add(new PointF( 0.87f * px, -2.70f * px));
+        mGuidedEnrollmentPoints.add(new PointF(-1.80f * px, -1.31f * px));
+        mGuidedEnrollmentPoints.add(new PointF(-1.80f * px,  1.31f * px));
+        mGuidedEnrollmentPoints.add(new PointF( 0.88f * px,  2.70f * px));
+        mGuidedEnrollmentPoints.add(new PointF( 3.94f * px, -1.06f * px));
+        mGuidedEnrollmentPoints.add(new PointF( 2.90f * px, -4.14f * px));
+        mGuidedEnrollmentPoints.add(new PointF(-0.52f * px, -5.95f * px));
+        mGuidedEnrollmentPoints.add(new PointF(-3.33f * px, -3.33f * px));
+        mGuidedEnrollmentPoints.add(new PointF(-3.99f * px, -0.35f * px));
+        mGuidedEnrollmentPoints.add(new PointF(-3.62f * px,  2.54f * px));
+        mGuidedEnrollmentPoints.add(new PointF(-1.49f * px,  5.57f * px));
+        mGuidedEnrollmentPoints.add(new PointF( 2.29f * px,  4.92f * px));
+        mGuidedEnrollmentPoints.add(new PointF( 3.82f * px,  1.78f * px));
     }
 
     boolean shouldShowProgressBar() {
@@ -51,6 +85,12 @@
             mTotalSteps = remaining;
         }
 
+        if (remaining != mRemainingSteps) {
+            mLocationsEnrolled++;
+        }
+
+        mRemainingSteps = remaining;
+
         if (mListener != null) {
             mListener.onEnrollmentProgress(remaining, mTotalSteps);
         }
@@ -67,8 +107,21 @@
         // bar can be updated. If enrollment has not started yet, the progress bar will be empty
         // anyway.
         if (mTotalSteps != -1) {
-            final int remainingSteps = mTotalSteps - mCurrentProgress;
-            mListener.onEnrollmentProgress(remainingSteps, mTotalSteps);
+            mListener.onEnrollmentProgress(mRemainingSteps, mTotalSteps);
         }
     }
+
+    boolean isCenterEnrollmentComplete() {
+        if (mTotalSteps == -1 || mRemainingSteps == -1) {
+            return false;
+        }
+        final int stepsEnrolled = mTotalSteps - mRemainingSteps;
+        return stepsEnrolled >= NUM_CENTER_TOUCHES;
+    }
+
+    @NonNull
+    PointF getNextGuidedEnrollmentPoint() {
+        final int index = mLocationsEnrolled - NUM_CENTER_TOUCHES;
+        return mGuidedEnrollmentPoints.get(index % mGuidedEnrollmentPoints.size());
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsView.java b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsView.java
index cd849e6..75a3621 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsView.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsView.java
@@ -27,6 +27,7 @@
 import android.graphics.Canvas;
 import android.graphics.Color;
 import android.graphics.Paint;
+import android.graphics.PointF;
 import android.graphics.RectF;
 import android.hardware.fingerprint.FingerprintSensorPropertiesInternal;
 import android.text.TextUtils;
@@ -180,8 +181,9 @@
 
     boolean isValidTouch(float x, float y, float pressure) {
         // The X and Y coordinates of the sensor's center.
-        final float cx = mSensorRect.centerX();
-        final float cy = mSensorRect.centerY();
+        final PointF translation = mAnimationView.getTouchTranslation();
+        final float cx = mSensorRect.centerX() + translation.x;
+        final float cy = mSensorRect.centerY() + translation.y;
         // Radii along the X and Y axes.
         final float rx = (mSensorRect.right - mSensorRect.left) / 2.0f;
         final float ry = (mSensorRect.bottom - mSensorRect.top) / 2.0f;
diff --git a/packages/SystemUI/src/com/android/systemui/dagger/FrameworkServicesModule.java b/packages/SystemUI/src/com/android/systemui/dagger/FrameworkServicesModule.java
index 04c4e97..1c5715c 100644
--- a/packages/SystemUI/src/com/android/systemui/dagger/FrameworkServicesModule.java
+++ b/packages/SystemUI/src/com/android/systemui/dagger/FrameworkServicesModule.java
@@ -25,6 +25,7 @@
 import android.app.IWallpaperManager;
 import android.app.KeyguardManager;
 import android.app.NotificationManager;
+import android.app.StatsManager;
 import android.app.WallpaperManager;
 import android.app.admin.DevicePolicyManager;
 import android.app.role.RoleManager;
@@ -321,6 +322,12 @@
 
     @Provides
     @Singleton
+    static StatsManager provideStatsManager(Context context) {
+        return context.getSystemService(StatsManager.class);
+    }
+
+    @Provides
+    @Singleton
     @Nullable
     static TelecomManager provideTelecomManager(Context context) {
         return context.getSystemService(TelecomManager.class);
diff --git a/packages/SystemUI/src/com/android/systemui/media/dialog/MediaOutputDialogReceiver.kt b/packages/SystemUI/src/com/android/systemui/media/dialog/MediaOutputDialogReceiver.kt
index bd3f5a6..7fb7d8b 100644
--- a/packages/SystemUI/src/com/android/systemui/media/dialog/MediaOutputDialogReceiver.kt
+++ b/packages/SystemUI/src/com/android/systemui/media/dialog/MediaOutputDialogReceiver.kt
@@ -20,9 +20,13 @@
 import android.content.Context
 import android.content.Intent
 import android.text.TextUtils
+import android.util.Log
 import com.android.settingslib.media.MediaOutputConstants
 import javax.inject.Inject
 
+private const val TAG = "MediaOutputDlgReceiver"
+private val DEBUG = Log.isLoggable(TAG, Log.DEBUG)
+
 /**
  * BroadcastReceiver for handling media output intent
  */
@@ -32,8 +36,13 @@
     override fun onReceive(context: Context, intent: Intent) {
         if (TextUtils.equals(MediaOutputConstants.ACTION_LAUNCH_MEDIA_OUTPUT_DIALOG,
                         intent.action)) {
-            mediaOutputDialogFactory.create(
-                    intent.getStringExtra(MediaOutputConstants.EXTRA_PACKAGE_NAME), false)
+            val packageName: String? =
+                    intent.getStringExtra(MediaOutputConstants.EXTRA_PACKAGE_NAME)
+            if (!TextUtils.isEmpty(packageName)) {
+                mediaOutputDialogFactory.create(packageName!!, false)
+            } else if (DEBUG) {
+                Log.e(TAG, "Unable to launch media output dialog. Package name is empty.")
+            }
         }
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/navigationbar/NavigationBarController.java b/packages/SystemUI/src/com/android/systemui/navigationbar/NavigationBarController.java
index 70b7b04..4491cc1 100644
--- a/packages/SystemUI/src/com/android/systemui/navigationbar/NavigationBarController.java
+++ b/packages/SystemUI/src/com/android/systemui/navigationbar/NavigationBarController.java
@@ -180,7 +180,7 @@
             }
         } else {
             for (int i = 0; i < mNavigationBars.size(); i++) {
-                mNavigationBars.get(i).onConfigurationChanged(newConfig);
+                mNavigationBars.valueAt(i).onConfigurationChanged(newConfig);
             }
         }
     }
@@ -193,7 +193,7 @@
                 if (navBar == null) {
                     continue;
                 }
-                NavigationBarView view = (NavigationBarView) mNavigationBars.get(i).getView();
+                NavigationBarView view = (NavigationBarView) navBar.getView();
                 if (view != null) {
                     view.updateStates();
                 }
@@ -399,7 +399,7 @@
             if (i > 0) {
                 pw.println();
             }
-            mNavigationBars.get(i).dump(pw);
+            mNavigationBars.valueAt(i).dump(pw);
         }
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/people/PeopleSpaceActivity.java b/packages/SystemUI/src/com/android/systemui/people/PeopleSpaceActivity.java
index 2ea8657..a69ec27 100644
--- a/packages/SystemUI/src/com/android/systemui/people/PeopleSpaceActivity.java
+++ b/packages/SystemUI/src/com/android/systemui/people/PeopleSpaceActivity.java
@@ -23,7 +23,6 @@
 import android.app.INotificationManager;
 import android.app.people.IPeopleManager;
 import android.app.people.PeopleSpaceTile;
-import android.appwidget.AppWidgetManager;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.LauncherApps;
@@ -34,12 +33,10 @@
 import android.util.Log;
 import android.view.ViewGroup;
 
-import com.android.internal.logging.UiEventLogger;
-import com.android.internal.logging.UiEventLoggerImpl;
 import com.android.systemui.R;
+import com.android.systemui.people.widget.PeopleSpaceWidgetManager;
 import com.android.systemui.statusbar.notification.NotificationEntryManager;
 
-import java.util.Collections;
 import java.util.List;
 
 import javax.inject.Inject;
@@ -54,15 +51,14 @@
 
     private ViewGroup mPeopleSpaceLayout;
     private IPeopleManager mPeopleManager;
+    private PeopleSpaceWidgetManager mPeopleSpaceWidgetManager;
     private INotificationManager mNotificationManager;
     private PackageManager mPackageManager;
     private LauncherApps mLauncherApps;
     private Context mContext;
-    private AppWidgetManager mAppWidgetManager;
     private NotificationEntryManager mNotificationEntryManager;
     private int mAppWidgetId;
     private boolean mShowSingleConversation;
-    private UiEventLogger mUiEventLogger = new UiEventLoggerImpl();
 
     @Inject
     public PeopleSpaceActivity(NotificationEntryManager notificationEntryManager) {
@@ -81,8 +77,8 @@
         mPackageManager = getPackageManager();
         mPeopleManager = IPeopleManager.Stub.asInterface(
                 ServiceManager.getService(Context.PEOPLE_SERVICE));
+        mPeopleSpaceWidgetManager = new PeopleSpaceWidgetManager(mContext);
         mLauncherApps = mContext.getSystemService(LauncherApps.class);
-        mAppWidgetManager = AppWidgetManager.getInstance(mContext);
         setTileViewsWithPriorityConversations();
         mAppWidgetId = getIntent().getIntExtra(EXTRA_APPWIDGET_ID,
                 INVALID_APPWIDGET_ID);
@@ -142,29 +138,13 @@
                         + mAppWidgetId);
             }
         }
-
-        PeopleSpaceUtils.setStorageForTile(mContext, tile, mAppWidgetId);
-        int[] widgetIds = new int[mAppWidgetId];
-        // TODO: Populate new widget with existing conversation notification, if there is any.
-        PeopleSpaceUtils.updateSingleConversationWidgets(mContext, widgetIds, mAppWidgetManager,
-                mPeopleManager);
-        if (mLauncherApps != null) {
-            try {
-                if (DEBUG) Log.d(TAG, "Caching shortcut for PeopleTile: " + tile.getId());
-                mLauncherApps.cacheShortcuts(tile.getPackageName(),
-                        Collections.singletonList(tile.getId()),
-                        tile.getUserHandle(), LauncherApps.FLAG_CACHE_PEOPLE_TILE_SHORTCUTS);
-            } catch (Exception e) {
-                Log.w(TAG, "Exception caching shortcut:" + e);
-            }
-        }
+        mPeopleSpaceWidgetManager.addNewWidget(tile, mAppWidgetId);
         finishActivity();
     }
 
     /** Finish activity with a successful widget configuration result. */
     private void finishActivity() {
         if (DEBUG) Log.d(TAG, "Widget added!");
-        mUiEventLogger.log(PeopleSpaceUtils.PeopleSpaceWidgetEvent.PEOPLE_SPACE_WIDGET_ADDED);
         setActivityResult(RESULT_OK);
         finish();
     }
diff --git a/packages/SystemUI/src/com/android/systemui/people/PeopleSpaceUtils.java b/packages/SystemUI/src/com/android/systemui/people/PeopleSpaceUtils.java
index 41080af..f9a16c1 100644
--- a/packages/SystemUI/src/com/android/systemui/people/PeopleSpaceUtils.java
+++ b/packages/SystemUI/src/com/android/systemui/people/PeopleSpaceUtils.java
@@ -220,7 +220,7 @@
     }
 
     @Nullable
-    private static PeopleSpaceTile getPeopleSpaceTile(IPeopleManager peopleManager,
+    public static PeopleSpaceTile getPeopleSpaceTile(IPeopleManager peopleManager,
             AppWidgetManager appWidgetManager,
             Context context, int appWidgetId) {
         try {
@@ -230,7 +230,7 @@
             String pkg = widgetSp.getString(PACKAGE_NAME, EMPTY_STRING);
             int userId = widgetSp.getInt(USER_ID, INVALID_USER_ID);
             String shortcutId = widgetSp.getString(SHORTCUT_ID, EMPTY_STRING);
-            if (pkg.isEmpty() || shortcutId.isEmpty() || userId == INVALID_WIDGET_ID) {
+            if (!validKey(shortcutId, pkg, userId)) {
                 SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
                 shortcutId = sp.getString(String.valueOf(appWidgetId), null);
                 if (shortcutId == null) {
@@ -268,6 +268,17 @@
         }
     }
 
+    /** Returns stored widgets for the conversation specified. */
+    public static Set<String> getStoredWidgetIds(SharedPreferences sp, String shortcutId,
+            String packageName, int userId) {
+        if (shortcutId == null || packageName == null) {
+            return new HashSet<>();
+        }
+        String key = PeopleSpaceUtils.getKey(shortcutId, packageName, userId);
+        return new HashSet<>(sp.getStringSet(key, new HashSet<>()));
+    }
+
+
     /** Best-effort attempts to migrate existing users to the new storage format. */
     // TODO: Remove after sufficient time. Temporary migration storage for existing users.
     private static void migrateExistingUsersToNewStorage(Context context, String shortcutId,
@@ -286,7 +297,11 @@
                 if (DEBUG) Log.d(TAG, "Migrate storage for " + entry.get().getUserName());
                 setStorageForTile(context, entry.get(), appWidgetId);
             } else {
-                Log.e(TAG, "Could not migrate user");
+                Log.e(TAG, "Could not migrate user. Delete old storage");
+                SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
+                SharedPreferences.Editor editor = sp.edit();
+                editor.remove(String.valueOf(appWidgetId));
+                editor.apply();
             }
         } catch (Exception e) {
             Log.e(TAG, "Could not query conversations");
@@ -320,17 +335,10 @@
     }
 
     /** Removes stored data when tile is deleted. */
-    public static void removeStorageForTile(Context context, int widgetId) {
-        SharedPreferences widgetSp = context.getSharedPreferences(String.valueOf(widgetId),
-                Context.MODE_PRIVATE);
-        String packageName = widgetSp.getString(PACKAGE_NAME, null);
-        String shortcutId = widgetSp.getString(SHORTCUT_ID, null);
-        int userId = widgetSp.getInt(USER_ID, -1);
-
+    public static void removeStorageForTile(Context context, String key, int widgetId) {
         // Delete widgetId mapping to key.
         SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
         SharedPreferences.Editor editor = sp.edit();
-        String key = PeopleSpaceUtils.getKey(shortcutId, packageName, userId);
         Set<String> storedWidgetIds = new HashSet<>(sp.getStringSet(key, new HashSet<>()));
         storedWidgetIds.remove(String.valueOf(widgetId));
         editor.putStringSet(key, storedWidgetIds);
@@ -338,6 +346,8 @@
         editor.apply();
 
         // Delete all data specifically mapped to widgetId.
+        SharedPreferences widgetSp = context.getSharedPreferences(String.valueOf(widgetId),
+                Context.MODE_PRIVATE);
         SharedPreferences.Editor widgetEditor = widgetSp.edit();
         widgetEditor.remove(PACKAGE_NAME);
         widgetEditor.remove(USER_ID);
@@ -345,21 +355,6 @@
         widgetEditor.apply();
     }
 
-    /**
-     * Returns whether the data mapped to app widget specified by {@code appWidgetId} matches the
-     * requested update data.
-     */
-    public static boolean isCorrectAppWidget(Context context, int appWidgetId, String shortcutId,
-            String packageName, int userId) {
-        SharedPreferences sp = context.getSharedPreferences(String.valueOf(appWidgetId),
-                Context.MODE_PRIVATE);
-        String storedPackage = sp.getString(PACKAGE_NAME, EMPTY_STRING);
-        int storedUserId = sp.getInt(USER_ID, INVALID_USER_ID);
-        String storedShortcutId = sp.getString(SHORTCUT_ID, EMPTY_STRING);
-        return storedPackage.equals(packageName) && storedShortcutId.equals(shortcutId)
-                && storedUserId == userId;
-    }
-
     static List<PeopleSpaceTile> augmentTilesFromVisibleNotifications(Context context,
             List<PeopleSpaceTile> tiles, NotificationEntryManager notificationEntryManager) {
         if (notificationEntryManager == null) {
@@ -396,39 +391,8 @@
         return augmentTileFromNotification(context, tile, visibleNotifications.get(key).getSbn());
     }
 
-    /**
-     * If incoming notification changed tile, store the changes in the tile options.
-     */
-    public static void updateWidgetWithNotificationChanged(IPeopleManager peopleManager,
-            Context context,
-            StatusBarNotification sbn,
-            NotificationAction notificationAction, AppWidgetManager appWidgetManager,
-            int appWidgetId) {
-        PeopleSpaceTile storedTile = getPeopleSpaceTile(peopleManager, appWidgetManager, context,
-                appWidgetId);
-        if (storedTile == null) {
-            if (DEBUG) Log.d(TAG, "Could not find stored tile to add notification to");
-            return;
-        }
-        if (notificationAction == PeopleSpaceUtils.NotificationAction.POSTED) {
-            if (DEBUG) Log.i(TAG, "Adding notification to storage, appWidgetId: " + appWidgetId);
-            storedTile = augmentTileFromNotification(context, storedTile, sbn);
-        } else {
-            if (DEBUG) {
-                Log.i(TAG, "Removing notification from storage, appWidgetId: " + appWidgetId);
-            }
-            storedTile = storedTile
-                    .toBuilder()
-                    .setNotificationKey(null)
-                    .setNotificationContent(null)
-                    .setNotificationDataUri(null)
-                    .setNotificationCategory(null)
-                    .build();
-        }
-        updateAppWidgetOptionsAndView(appWidgetManager, context, appWidgetId, storedTile);
-    }
-
-    static PeopleSpaceTile augmentTileFromNotification(Context context, PeopleSpaceTile tile,
+    /** Augments {@code tile} with the notification content from {@code sbn}. */
+    public static PeopleSpaceTile augmentTileFromNotification(Context context, PeopleSpaceTile tile,
             StatusBarNotification sbn) {
         Notification notification = sbn.getNotification();
         if (notification == null) {
@@ -992,7 +956,7 @@
     }
 
     /** Update app widget options and the current view. */
-    private static void updateAppWidgetOptionsAndView(AppWidgetManager appWidgetManager,
+    public static void updateAppWidgetOptionsAndView(AppWidgetManager appWidgetManager,
             Context context, int appWidgetId, PeopleSpaceTile tile) {
         updateAppWidgetOptions(appWidgetManager, appWidgetId, tile);
         RemoteViews views = createRemoteViews(context, tile, appWidgetId);
@@ -1065,10 +1029,19 @@
      *     <li>"a/b/0" + "/" + 0 + "/" + "packageName"</li>
      * </ul>
      */
+    @Nullable
     public static String getKey(String shortcutId, String packageName, int userId) {
+        if (!validKey(shortcutId, packageName, userId)) {
+            return null;
+        }
         return shortcutId + "/" + userId + "/" + packageName;
     }
 
+    /** Returns whether the key is valid. */
+    public static boolean validKey(String shortcutId, String packageName, int userId) {
+        return !TextUtils.isEmpty(shortcutId) && !TextUtils.isEmpty(packageName) && userId >= 0;
+    }
+
     /** Returns the userId associated with a {@link PeopleSpaceTile} */
     public static int getUserId(PeopleSpaceTile tile) {
         return tile.getUserHandle().getIdentifier();
diff --git a/packages/SystemUI/src/com/android/systemui/people/widget/PeopleSpaceWidgetManager.java b/packages/SystemUI/src/com/android/systemui/people/widget/PeopleSpaceWidgetManager.java
index 9e5c786..22ee9e8 100644
--- a/packages/SystemUI/src/com/android/systemui/people/widget/PeopleSpaceWidgetManager.java
+++ b/packages/SystemUI/src/com/android/systemui/people/widget/PeopleSpaceWidgetManager.java
@@ -16,12 +16,28 @@
 
 package com.android.systemui.people.widget;
 
+import static com.android.systemui.people.PeopleSpaceUtils.INVALID_USER_ID;
+import static com.android.systemui.people.PeopleSpaceUtils.PACKAGE_NAME;
+import static com.android.systemui.people.PeopleSpaceUtils.SHORTCUT_ID;
+import static com.android.systemui.people.PeopleSpaceUtils.USER_ID;
+import static com.android.systemui.people.PeopleSpaceUtils.augmentTileFromNotification;
+import static com.android.systemui.people.PeopleSpaceUtils.getPeopleSpaceTile;
+import static com.android.systemui.people.PeopleSpaceUtils.getStoredWidgetIds;
+import static com.android.systemui.people.PeopleSpaceUtils.updateAppWidgetOptionsAndView;
+
 import android.app.NotificationChannel;
+import android.app.Person;
+import android.app.people.ConversationChannel;
 import android.app.people.IPeopleManager;
+import android.app.people.PeopleManager;
+import android.app.people.PeopleSpaceTile;
 import android.appwidget.AppWidgetManager;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.SharedPreferences;
+import android.content.pm.LauncherApps;
+import android.content.pm.ShortcutInfo;
+import android.net.Uri;
 import android.os.ServiceManager;
 import android.os.UserHandle;
 import android.preference.PreferenceManager;
@@ -30,14 +46,18 @@
 import android.service.notification.StatusBarNotification;
 import android.util.Log;
 
+import com.android.internal.annotations.GuardedBy;
 import com.android.internal.annotations.VisibleForTesting;
-import com.android.internal.appwidget.IAppWidgetService;
-import com.android.systemui.R;
+import com.android.internal.logging.UiEventLogger;
+import com.android.internal.logging.UiEventLoggerImpl;
 import com.android.systemui.people.PeopleSpaceUtils;
 import com.android.systemui.statusbar.NotificationListener;
 import com.android.systemui.statusbar.NotificationListener.NotificationHandler;
 
+import java.util.Collections;
+import java.util.HashMap;
 import java.util.HashSet;
+import java.util.Map;
 import java.util.Set;
 
 import javax.inject.Inject;
@@ -49,52 +69,49 @@
     private static final String TAG = "PeopleSpaceWidgetMgr";
     private static final boolean DEBUG = PeopleSpaceUtils.DEBUG;
 
+    private final Object mLock = new Object();
     private final Context mContext;
-    private IAppWidgetService mAppWidgetService;
+    private LauncherApps mLauncherApps;
     private AppWidgetManager mAppWidgetManager;
-    private IPeopleManager mPeopleManager;
+    private IPeopleManager mIPeopleManager;
+    private SharedPreferences mSharedPrefs;
+    private PeopleManager mPeopleManager;
+    public UiEventLogger mUiEventLogger = new UiEventLoggerImpl();
+    @GuardedBy("mLock")
+    public static Map<String, PeopleSpaceWidgetProvider.TileConversationListener> mListeners =
+            new HashMap<>();
 
     @Inject
-    public PeopleSpaceWidgetManager(Context context, IAppWidgetService appWidgetService) {
+    public PeopleSpaceWidgetManager(Context context) {
         if (DEBUG) Log.d(TAG, "constructor");
         mContext = context;
-        mAppWidgetService = appWidgetService;
         mAppWidgetManager = AppWidgetManager.getInstance(context);
-        mPeopleManager = IPeopleManager.Stub.asInterface(
+        mIPeopleManager = IPeopleManager.Stub.asInterface(
                 ServiceManager.getService(Context.PEOPLE_SERVICE));
-    }
-
-    /**
-     * Constructor used for testing.
-     */
-    @VisibleForTesting
-    protected PeopleSpaceWidgetManager(Context context) {
-        if (DEBUG) Log.d(TAG, "constructor");
-        mContext = context;
-        mAppWidgetService = IAppWidgetService.Stub.asInterface(
-                ServiceManager.getService(Context.APPWIDGET_SERVICE));
+        mLauncherApps = context.getSystemService(LauncherApps.class);
+        mSharedPrefs = PreferenceManager.getDefaultSharedPreferences(mContext);
+        mPeopleManager = mContext.getSystemService(PeopleManager.class);
     }
 
     /**
      * AppWidgetManager setter used for testing.
      */
     @VisibleForTesting
-    protected void setAppWidgetManager(IAppWidgetService appWidgetService,
-            AppWidgetManager appWidgetManager, IPeopleManager peopleManager) {
-        mAppWidgetService = appWidgetService;
+    protected void setAppWidgetManager(
+            AppWidgetManager appWidgetManager, IPeopleManager iPeopleManager,
+            PeopleManager peopleManager, LauncherApps launcherApps) {
         mAppWidgetManager = appWidgetManager;
+        mIPeopleManager = iPeopleManager;
         mPeopleManager = peopleManager;
+        mLauncherApps = launcherApps;
     }
 
     /**
      * Updates People Space widgets.
      */
-    public void updateWidgets() {
+    public void updateWidgets(int[] widgetIds) {
         try {
             if (DEBUG) Log.d(TAG, "updateWidgets called");
-            int[] widgetIds = mAppWidgetService.getAppWidgetIds(
-                    new ComponentName(mContext, PeopleSpaceWidgetProvider.class)
-            );
             if (widgetIds.length == 0) {
                 if (DEBUG) Log.d(TAG, "no widgets to update");
                 return;
@@ -103,14 +120,11 @@
             if (DEBUG) Log.d(TAG, "updating " + widgetIds.length + " widgets");
             boolean showSingleConversation = Settings.Global.getInt(mContext.getContentResolver(),
                     Settings.Global.PEOPLE_SPACE_CONVERSATION_TYPE, 0) == 0;
-
             if (showSingleConversation) {
-                PeopleSpaceUtils.updateSingleConversationWidgets(mContext, widgetIds,
-                        mAppWidgetManager, mPeopleManager);
-            } else {
-                mAppWidgetService
-                        .notifyAppWidgetViewDataChanged(mContext.getOpPackageName(), widgetIds,
-                                R.id.widget_list_view);
+                synchronized (mLock) {
+                    PeopleSpaceUtils.updateSingleConversationWidgets(mContext, widgetIds,
+                            mAppWidgetManager, mIPeopleManager);
+                }
             }
         } catch (Exception e) {
             Log.e(TAG, "Exception: " + e);
@@ -121,9 +135,9 @@
      * Check if any existing People tiles match the incoming notification change, and store the
      * change in the tile if so.
      */
-    public void updateWidgetWithNotificationChanged(StatusBarNotification sbn,
+    public void updateWidgetsWithNotificationChanged(StatusBarNotification sbn,
             PeopleSpaceUtils.NotificationAction notificationAction) {
-        if (DEBUG) Log.d(TAG, "updateWidgetWithNotificationChanged called");
+        if (DEBUG) Log.d(TAG, "updateWidgetsWithNotificationChanged called");
         boolean showSingleConversation = Settings.Global.getInt(mContext.getContentResolver(),
                 Settings.Global.PEOPLE_SPACE_CONVERSATION_TYPE, 0) == 0;
         if (!showSingleConversation) {
@@ -135,26 +149,22 @@
                 if (DEBUG) Log.d(TAG, "Sbn shortcut id is null");
                 return;
             }
-            int[] widgetIds = mAppWidgetService.getAppWidgetIds(
+            int[] widgetIds = mAppWidgetManager.getAppWidgetIds(
                     new ComponentName(mContext, PeopleSpaceWidgetProvider.class)
             );
             if (widgetIds.length == 0) {
                 Log.d(TAG, "No app widget ids returned");
                 return;
             }
-            SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(mContext);
-            int userId = UserHandle.getUserHandleForUid(sbn.getUid()).getIdentifier();
-            String key = PeopleSpaceUtils.getKey(sbnShortcutId, sbn.getPackageName(), userId);
-            Set<String> storedWidgetIds = new HashSet<>(sp.getStringSet(key, new HashSet<>()));
-            if (storedWidgetIds.isEmpty()) {
-                Log.d(TAG, "No stored widget ids");
-                return;
-            }
-            for (String widgetIdString : storedWidgetIds) {
-                int widgetId = Integer.parseInt(widgetIdString);
-                if (DEBUG) Log.d(TAG, "Storing notification change, key:" + sbn.getKey());
-                PeopleSpaceUtils.updateWidgetWithNotificationChanged(mPeopleManager, mContext,
-                        sbn, notificationAction, mAppWidgetManager, widgetId);
+            synchronized (mLock) {
+                Set<String> storedWidgetIds = getStoredWidgetIds(mSharedPrefs, sbnShortcutId,
+                        sbn.getPackageName(),
+                        UserHandle.getUserHandleForUid(sbn.getUid()).getIdentifier());
+                for (String widgetIdString : storedWidgetIds) {
+                    int widgetId = Integer.parseInt(widgetIdString);
+                    if (DEBUG) Log.d(TAG, "Storing notification change, key:" + sbn.getKey());
+                    updateStorageAndViewWithNotificationData(sbn, notificationAction, widgetId);
+                }
             }
         } catch (Exception e) {
             Log.e(TAG, "Exception: " + e);
@@ -162,6 +172,91 @@
     }
 
     /**
+     * Update the tiles associated with the incoming conversation update.
+     */
+    public void updateWidgetsWithConversationChanged(ConversationChannel conversation) {
+        ShortcutInfo info = conversation.getShortcutInfo();
+        synchronized (mLock) {
+            Set<String> storedWidgetIds = getStoredWidgetIds(mSharedPrefs, info.getId(),
+                    info.getPackage(),
+                    info.getUserId());
+            for (String widgetIdString : storedWidgetIds) {
+                if (DEBUG) {
+                    Log.d(TAG,
+                            "Conversation update for widget " + widgetIdString + " , "
+                                    + info.getLabel());
+                }
+                updateStorageAndViewWithConversationData(conversation,
+                        Integer.valueOf(widgetIdString));
+            }
+        }
+    }
+
+    /**
+     * Update {@code appWidgetId} with the new data provided by {@code conversation}.
+     */
+    private void updateStorageAndViewWithConversationData(ConversationChannel conversation,
+            int appWidgetId) {
+        PeopleSpaceTile storedTile = getPeopleSpaceTile(mIPeopleManager, mAppWidgetManager,
+                mContext,
+                appWidgetId);
+        if (storedTile == null) {
+            if (DEBUG) Log.d(TAG, "Could not find stored tile to add conversation to");
+            return;
+        }
+        ShortcutInfo info = conversation.getShortcutInfo();
+        Uri uri = null;
+        if (info.getPersons() != null && info.getPersons().length > 0) {
+            Person person = info.getPersons()[0];
+            uri = person.getUri() == null ? null : Uri.parse(person.getUri());
+        }
+        storedTile = storedTile.toBuilder()
+                .setUserName(info.getLabel())
+                .setUserIcon(
+                        PeopleSpaceTile.convertDrawableToIcon(mLauncherApps.getShortcutIconDrawable(
+                                info, 0))
+                )
+                .setContactUri(uri)
+                .setStatuses(conversation.getStatuses())
+                .setLastInteractionTimestamp(conversation.getLastEventTimestamp())
+                .setIsImportantConversation(conversation.getParentNotificationChannel() != null
+                        && conversation.getParentNotificationChannel().isImportantConversation())
+                .build();
+        updateAppWidgetOptionsAndView(mAppWidgetManager, mContext, appWidgetId, storedTile);
+    }
+
+    /**
+     * Update {@code appWidgetId} with the new data provided by {@code sbn}.
+     */
+    private void updateStorageAndViewWithNotificationData(
+            StatusBarNotification sbn,
+            PeopleSpaceUtils.NotificationAction notificationAction,
+            int appWidgetId) {
+        PeopleSpaceTile storedTile = getPeopleSpaceTile(mIPeopleManager, mAppWidgetManager,
+                mContext,
+                appWidgetId);
+        if (storedTile == null) {
+            if (DEBUG) Log.d(TAG, "Could not find stored tile to add notification to");
+            return;
+        }
+        if (notificationAction == PeopleSpaceUtils.NotificationAction.POSTED) {
+            if (DEBUG) Log.i(TAG, "Adding notification to storage, appWidgetId: " + appWidgetId);
+            storedTile = augmentTileFromNotification(mContext, storedTile, sbn);
+        } else {
+            if (DEBUG) {
+                Log.i(TAG, "Removing notification from storage, appWidgetId: " + appWidgetId);
+            }
+            storedTile = storedTile
+                    .toBuilder()
+                    .setNotificationKey(null)
+                    .setNotificationContent(null)
+                    .setNotificationDataUri(null)
+                    .build();
+        }
+        updateAppWidgetOptionsAndView(mAppWidgetManager, mContext, appWidgetId, storedTile);
+    }
+
+    /**
      * Attaches the manager to the pipeline, making it ready to receive events. Should only be
      * called once.
      */
@@ -174,8 +269,7 @@
         @Override
         public void onNotificationPosted(
                 StatusBarNotification sbn, NotificationListenerService.RankingMap rankingMap) {
-            if (DEBUG) Log.d(TAG, "onNotificationPosted");
-            updateWidgetWithNotificationChanged(sbn, PeopleSpaceUtils.NotificationAction.POSTED);
+            updateWidgetsWithNotificationChanged(sbn, PeopleSpaceUtils.NotificationAction.POSTED);
         }
 
         @Override
@@ -183,8 +277,7 @@
                 StatusBarNotification sbn,
                 NotificationListenerService.RankingMap rankingMap
         ) {
-            if (DEBUG) Log.d(TAG, "onNotificationRemoved");
-            updateWidgetWithNotificationChanged(sbn, PeopleSpaceUtils.NotificationAction.REMOVED);
+            updateWidgetsWithNotificationChanged(sbn, PeopleSpaceUtils.NotificationAction.REMOVED);
         }
 
         @Override
@@ -192,8 +285,7 @@
                 StatusBarNotification sbn,
                 NotificationListenerService.RankingMap rankingMap,
                 int reason) {
-            if (DEBUG) Log.d(TAG, "onNotificationRemoved with reason " + reason);
-            updateWidgetWithNotificationChanged(sbn, PeopleSpaceUtils.NotificationAction.REMOVED);
+            updateWidgetsWithNotificationChanged(sbn, PeopleSpaceUtils.NotificationAction.REMOVED);
         }
 
         @Override
@@ -204,7 +296,6 @@
         @Override
         public void onNotificationsInitialized() {
             if (DEBUG) Log.d(TAG, "onNotificationsInitialized");
-            updateWidgets();
         }
 
         @Override
@@ -213,11 +304,131 @@
                 UserHandle user,
                 NotificationChannel channel,
                 int modificationType) {
-            if (DEBUG) Log.d(TAG, "onNotificationChannelModified");
             if (channel.isConversation()) {
-                updateWidgets();
+                updateWidgets(mAppWidgetManager.getAppWidgetIds(
+                        new ComponentName(mContext, PeopleSpaceWidgetProvider.class)
+                ));
             }
         }
     };
 
-}
\ No newline at end of file
+    /** Adds {@code tile} mapped to {@code appWidgetId}. */
+    public void addNewWidget(PeopleSpaceTile tile, int appWidgetId) {
+        mUiEventLogger.log(PeopleSpaceUtils.PeopleSpaceWidgetEvent.PEOPLE_SPACE_WIDGET_ADDED);
+        synchronized (mLock) {
+            if (DEBUG) Log.d(TAG, "Add storage for : " + tile.getUserName());
+            PeopleSpaceUtils.setStorageForTile(mContext, tile, appWidgetId);
+        }
+        try {
+            if (DEBUG) Log.d(TAG, "Caching shortcut for PeopleTile: " + tile.getId());
+            mLauncherApps.cacheShortcuts(tile.getPackageName(),
+                    Collections.singletonList(tile.getId()),
+                    tile.getUserHandle(), LauncherApps.FLAG_CACHE_PEOPLE_TILE_SHORTCUTS);
+        } catch (Exception e) {
+            Log.w(TAG, "Exception caching shortcut:" + e);
+        }
+        PeopleSpaceWidgetProvider provider = new PeopleSpaceWidgetProvider();
+        provider.onUpdate(mContext, mAppWidgetManager, new int[]{appWidgetId});
+    }
+
+    /** Registers a conversation listener for {@code appWidgetId} if not already registered. */
+    public void registerConversationListenerIfNeeded(int widgetId,
+            PeopleSpaceWidgetProvider.TileConversationListener newListener) {
+        // Retrieve storage needed for registration.
+        String packageName;
+        String shortcutId;
+        int userId;
+        String key;
+        synchronized (mLock) {
+            SharedPreferences widgetSp = mContext.getSharedPreferences(String.valueOf(widgetId),
+                    Context.MODE_PRIVATE);
+            packageName = widgetSp.getString(PACKAGE_NAME, null);
+            shortcutId = widgetSp.getString(SHORTCUT_ID, null);
+            userId = widgetSp.getInt(USER_ID, INVALID_USER_ID);
+            key = PeopleSpaceUtils.getKey(shortcutId, packageName, userId);
+            if (key == null) {
+                if (DEBUG) Log.e(TAG, "Could not register " + widgetId);
+                return;
+            }
+        }
+        synchronized (mListeners) {
+            if (mListeners.containsKey(key)) {
+                if (DEBUG) Log.d(TAG, "Already registered listener");
+                return;
+            }
+            if (DEBUG) Log.d(TAG, "Register listener for " + widgetId + " with " + key);
+            mListeners.put(key, newListener);
+        }
+        mPeopleManager.registerConversationListener(packageName,
+                userId,
+                shortcutId, newListener,
+                mContext.getMainExecutor());
+    }
+
+    /** Deletes all storage, listeners, and caching for {@code appWidgetIds}. */
+    public void deleteWidgets(int[] appWidgetIds) {
+        for (int widgetId : appWidgetIds) {
+            if (DEBUG) Log.d(TAG, "Widget removed: " + widgetId);
+            mUiEventLogger.log(PeopleSpaceUtils.PeopleSpaceWidgetEvent.PEOPLE_SPACE_WIDGET_DELETED);
+            // Retrieve storage needed for widget deletion.
+            String packageName;
+            String shortcutId;
+            int userId;
+            String key;
+            Set<String> storedWidgetIdsForKey;
+            synchronized (mLock) {
+                SharedPreferences widgetSp = mContext.getSharedPreferences(String.valueOf(widgetId),
+                        Context.MODE_PRIVATE);
+                packageName = widgetSp.getString(PACKAGE_NAME, null);
+                shortcutId = widgetSp.getString(SHORTCUT_ID, null);
+                userId = widgetSp.getInt(USER_ID, INVALID_USER_ID);
+                key = PeopleSpaceUtils.getKey(shortcutId, packageName, userId);
+                if (key == null) {
+                    if (DEBUG) Log.e(TAG, "Could not delete " + widgetId);
+                    return;
+                }
+                storedWidgetIdsForKey = new HashSet<>(
+                        mSharedPrefs.getStringSet(key, new HashSet<>()));
+            }
+            synchronized (mLock) {
+                PeopleSpaceUtils.removeStorageForTile(mContext, key, widgetId);
+            }
+            // If another tile with the conversation is still stored, we need to keep the listener.
+            if (DEBUG) Log.d(TAG, "Stored widget IDs: " + storedWidgetIdsForKey.toString());
+            if (storedWidgetIdsForKey.contains(String.valueOf(widgetId))
+                    && storedWidgetIdsForKey.size() == 1) {
+                if (DEBUG) Log.d(TAG, "Remove caching and listener");
+                unregisterConversationListener(key, widgetId);
+                uncacheConversationShortcut(shortcutId, packageName, userId);
+            }
+        }
+    }
+
+    /** Unregisters the conversation listener for {@code appWidgetId}. */
+    private void unregisterConversationListener(String key, int appWidgetId) {
+        PeopleSpaceWidgetProvider.TileConversationListener registeredListener;
+        synchronized (mListeners) {
+            registeredListener = mListeners.get(key);
+            if (registeredListener == null) {
+                if (DEBUG) Log.d(TAG, "Cannot find listener to unregister");
+                return;
+            }
+            if (DEBUG) Log.d(TAG, "Unregister listener for " + appWidgetId + " with " + key);
+            mListeners.remove(key);
+        }
+        mPeopleManager.unregisterConversationListener(registeredListener);
+    }
+
+    /** Uncaches the conversation shortcut. */
+    private void uncacheConversationShortcut(String shortcutId, String packageName, int userId) {
+        try {
+            if (DEBUG) Log.d(TAG, "Uncaching shortcut for PeopleTile: " + shortcutId);
+            mLauncherApps.uncacheShortcuts(packageName,
+                    Collections.singletonList(shortcutId),
+                    UserHandle.of(userId),
+                    LauncherApps.FLAG_CACHE_PEOPLE_TILE_SHORTCUTS);
+        } catch (Exception e) {
+            Log.d(TAG, "Exception uncaching shortcut:" + e);
+        }
+    }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/people/widget/PeopleSpaceWidgetProvider.java b/packages/SystemUI/src/com/android/systemui/people/widget/PeopleSpaceWidgetProvider.java
index 90baf56..c0c1847 100644
--- a/packages/SystemUI/src/com/android/systemui/people/widget/PeopleSpaceWidgetProvider.java
+++ b/packages/SystemUI/src/com/android/systemui/people/widget/PeopleSpaceWidgetProvider.java
@@ -16,31 +16,17 @@
 
 package com.android.systemui.people.widget;
 
-import static com.android.systemui.people.PeopleSpaceUtils.PACKAGE_NAME;
-import static com.android.systemui.people.PeopleSpaceUtils.SHORTCUT_ID;
-import static com.android.systemui.people.PeopleSpaceUtils.USER_ID;
-
-import android.app.PendingIntent;
-import android.app.people.IPeopleManager;
+import android.annotation.NonNull;
+import android.app.people.ConversationChannel;
+import android.app.people.PeopleManager;
 import android.appwidget.AppWidgetManager;
 import android.appwidget.AppWidgetProvider;
 import android.content.Context;
-import android.content.Intent;
-import android.content.SharedPreferences;
-import android.content.pm.LauncherApps;
-import android.os.ServiceManager;
-import android.os.UserHandle;
-import android.provider.Settings;
 import android.util.Log;
-import android.widget.RemoteViews;
 
-import com.android.internal.logging.UiEventLogger;
-import com.android.internal.logging.UiEventLoggerImpl;
-import com.android.systemui.R;
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.systemui.people.PeopleSpaceUtils;
 
-import java.util.Collections;
-
 /** People Space Widget Provider class. */
 public class PeopleSpaceWidgetProvider extends AppWidgetProvider {
     private static final String TAG = "PeopleSpaceWidgetPvd";
@@ -50,7 +36,26 @@
     public static final String EXTRA_PACKAGE_NAME = "extra_package_name";
     public static final String EXTRA_USER_HANDLE = "extra_user_handle";
 
-    public UiEventLogger mUiEventLogger = new UiEventLoggerImpl();
+    public PeopleSpaceWidgetManager peopleSpaceWidgetManager;
+
+    /** Listener for the shortcut data changes. */
+    public class TileConversationListener implements PeopleManager.ConversationListener {
+
+        @Override
+        public void onConversationUpdate(@NonNull ConversationChannel conversation) {
+            if (DEBUG) {
+                Log.d(TAG,
+                        "Received updated conversation: "
+                                + conversation.getShortcutInfo().getLabel());
+            }
+            if (peopleSpaceWidgetManager == null) {
+                // This shouldn't happen since onUpdate is called at reboot.
+                Log.e(TAG, "Skipping conversation update: WidgetManager uninitialized");
+                return;
+            }
+            peopleSpaceWidgetManager.updateWidgetsWithConversationChanged(conversation);
+        }
+    }
 
     /** Called when widget updates. */
     @Override
@@ -58,70 +63,32 @@
         super.onUpdate(context, appWidgetManager, appWidgetIds);
 
         if (DEBUG) Log.d(TAG, "onUpdate called");
-        boolean showSingleConversation = Settings.Global.getInt(context.getContentResolver(),
-                Settings.Global.PEOPLE_SPACE_CONVERSATION_TYPE, 0) == 0;
-        if (showSingleConversation) {
-            PeopleSpaceUtils.updateSingleConversationWidgets(context, appWidgetIds,
-                    appWidgetManager, IPeopleManager.Stub.asInterface(
-                            ServiceManager.getService(Context.PEOPLE_SERVICE)));
-            return;
-        }
-        // Perform this loop procedure for each App Widget that belongs to this provider
+        ensurePeopleSpaceWidgetManagerInitialized(context);
+        peopleSpaceWidgetManager.updateWidgets(appWidgetIds);
         for (int appWidgetId : appWidgetIds) {
-            RemoteViews views =
-                    new RemoteViews(context.getPackageName(), R.layout.people_space_widget);
+            PeopleSpaceWidgetProvider.TileConversationListener
+                    newListener = new PeopleSpaceWidgetProvider.TileConversationListener();
+            peopleSpaceWidgetManager.registerConversationListenerIfNeeded(appWidgetId,
+                    newListener);
+        }
+        return;
+    }
 
-            Intent intent = new Intent(context, PeopleSpaceWidgetService.class);
-            intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
-            views.setRemoteAdapter(R.id.widget_list_view, intent);
-
-            Intent activityIntent = new Intent(context, LaunchConversationActivity.class);
-            activityIntent.addFlags(
-                    Intent.FLAG_ACTIVITY_NEW_TASK
-                            | Intent.FLAG_ACTIVITY_CLEAR_TASK
-                            | Intent.FLAG_ACTIVITY_NO_HISTORY
-                            | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
-            PendingIntent pendingIntent = PendingIntent.getActivity(
-                    context,
-                    appWidgetId,
-                    activityIntent,
-                    PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_MUTABLE);
-            views.setPendingIntentTemplate(R.id.widget_list_view, pendingIntent);
-
-            // Tell the AppWidgetManager to perform an update on the current app widget
-            appWidgetManager.notifyAppWidgetViewDataChanged(appWidgetId, R.id.widget_list_view);
-            appWidgetManager.updateAppWidget(appWidgetId, views);
+    private void ensurePeopleSpaceWidgetManagerInitialized(Context context) {
+        if (peopleSpaceWidgetManager == null) {
+            peopleSpaceWidgetManager = new PeopleSpaceWidgetManager(context);
         }
     }
 
     @Override
     public void onDeleted(Context context, int[] appWidgetIds) {
         super.onDeleted(context, appWidgetIds);
-        LauncherApps launcherApps = context.getSystemService(LauncherApps.class);
+        ensurePeopleSpaceWidgetManagerInitialized(context);
+        peopleSpaceWidgetManager.deleteWidgets(appWidgetIds);
+    }
 
-        for (int widgetId : appWidgetIds) {
-            if (DEBUG) Log.d(TAG, "Widget removed");
-            mUiEventLogger.log(PeopleSpaceUtils.PeopleSpaceWidgetEvent.PEOPLE_SPACE_WIDGET_DELETED);
-            if (launcherApps != null) {
-                SharedPreferences widgetSp = context.getSharedPreferences(String.valueOf(widgetId),
-                        Context.MODE_PRIVATE);
-                String packageName = widgetSp.getString(PACKAGE_NAME, null);
-                String shortcutId = widgetSp.getString(SHORTCUT_ID, null);
-                int userId = widgetSp.getInt(USER_ID, -1);
-
-                if (packageName != null && shortcutId != null && userId != -1) {
-                    try {
-                        if (DEBUG) Log.d(TAG, "Uncaching shortcut for PeopleTile: " + shortcutId);
-                        launcherApps.uncacheShortcuts(packageName,
-                                Collections.singletonList(shortcutId),
-                                UserHandle.of(userId),
-                                LauncherApps.FLAG_CACHE_PEOPLE_TILE_SHORTCUTS);
-                    } catch (Exception e) {
-                        Log.d(TAG, "Exception uncaching shortcut:" + e);
-                    }
-                }
-            }
-            PeopleSpaceUtils.removeStorageForTile(context, widgetId);
-        }
+    @VisibleForTesting
+    public void setPeopleSpaceWidgetManager(PeopleSpaceWidgetManager manager) {
+        peopleSpaceWidgetManager = manager;
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/qs/tileimpl/QSTileBaseView.java b/packages/SystemUI/src/com/android/systemui/qs/tileimpl/QSTileBaseView.java
index 38e2ba4..33ca7d6 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/tileimpl/QSTileBaseView.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/tileimpl/QSTileBaseView.java
@@ -259,23 +259,30 @@
         mIcon.setIcon(state, allowAnimations);
         setContentDescription(state.contentDescription);
         final StringBuilder stateDescription = new StringBuilder();
+        String text = "";
         switch (state.state) {
             case Tile.STATE_UNAVAILABLE:
-                stateDescription.append(mContext.getString(R.string.tile_unavailable));
+                text = mContext.getString(R.string.tile_unavailable);
                 break;
             case Tile.STATE_INACTIVE:
                 if (state instanceof QSTile.BooleanState) {
-                    stateDescription.append(mContext.getString(R.string.switch_bar_off));
+                    text = mContext.getString(R.string.switch_bar_off);
                 }
                 break;
             case Tile.STATE_ACTIVE:
                 if (state instanceof QSTile.BooleanState) {
-                    stateDescription.append(mContext.getString(R.string.switch_bar_on));
+                    text = mContext.getString(R.string.switch_bar_on);
                 }
                 break;
             default:
                 break;
         }
+        if (!TextUtils.isEmpty(text)) {
+            stateDescription.append(text);
+            if (TextUtils.isEmpty(state.secondaryLabel)) {
+                state.secondaryLabel = text;
+            }
+        }
         if (!TextUtils.isEmpty(state.stateDescription)) {
             stateDescription.append(", ");
             stateDescription.append(state.stateDescription);
diff --git a/packages/SystemUI/src/com/android/systemui/recents/OverviewProxyService.java b/packages/SystemUI/src/com/android/systemui/recents/OverviewProxyService.java
index 5b2a7e7..e7d4283 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/OverviewProxyService.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/OverviewProxyService.java
@@ -662,14 +662,29 @@
         }
 
         @Override
-        public void startIntent(PendingIntent intent, int stage, int position, Bundle options) {
+        public void startIntent(PendingIntent intent, Intent fillInIntent,
+                int stage, int position, Bundle options) {
             if (!verifyCaller("startIntent")) {
                 return;
             }
             final long token = Binder.clearCallingIdentity();
             try {
                 mSplitScreenOptional.ifPresent(s ->
-                        s.startIntent(intent, stage, position, options));
+                        s.startIntent(intent, mContext, fillInIntent, stage, position, options));
+            } finally {
+                Binder.restoreCallingIdentity(token);
+            }
+        }
+
+        @Override
+        public void removeFromSideStage(int taskId) {
+            if (!verifyCaller("removeFromSideStage")) {
+                return;
+            }
+            final long token = Binder.clearCallingIdentity();
+            try {
+                mSplitScreenOptional.ifPresent(
+                        s -> s.removeFromSideStage(taskId));
             } finally {
                 Binder.restoreCallingIdentity(token);
             }
@@ -789,10 +804,10 @@
         }
 
         @Override
-        public void onTaskStageChanged(int taskId, int stage) {
+        public void onTaskStageChanged(int taskId, int stage, boolean visible) {
             try {
                 if (mISplitScreenListener != null) {
-                    mISplitScreenListener.onTaskStageChanged(taskId, stage);
+                    mISplitScreenListener.onTaskStageChanged(taskId, stage, visible);
                 }
             } catch (RemoteException e) {
                 Log.e(TAG_OPS, "onTaskStageChanged", e);
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/wrapper/NotificationBigPictureTemplateViewWrapper.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/wrapper/NotificationBigPictureTemplateViewWrapper.java
index 7248bce..151840a 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/wrapper/NotificationBigPictureTemplateViewWrapper.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/wrapper/NotificationBigPictureTemplateViewWrapper.java
@@ -44,9 +44,10 @@
 
     private void updateImageTag(StatusBarNotification notification) {
         final Bundle extras = notification.getNotification().extras;
-        Icon overRiddenIcon = extras.getParcelable(Notification.EXTRA_LARGE_ICON_BIG);
-        if (overRiddenIcon != null) {
-            mPicture.setTag(ImageTransformState.ICON_TAG, overRiddenIcon);
+        Icon overriddenIcon = extras.getParcelable(Notification.EXTRA_LARGE_ICON_BIG);
+        if (overriddenIcon != null) {
+            mRightIcon.setTag(ImageTransformState.ICON_TAG, overriddenIcon);
+            mLeftIcon.setTag(ImageTransformState.ICON_TAG, overriddenIcon);
         }
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/wrapper/NotificationTemplateViewWrapper.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/wrapper/NotificationTemplateViewWrapper.java
index e9934c0..e0b5812 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/wrapper/NotificationTemplateViewWrapper.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/wrapper/NotificationTemplateViewWrapper.java
@@ -51,7 +51,8 @@
 public class NotificationTemplateViewWrapper extends NotificationHeaderViewWrapper {
 
     private final int mFullHeaderTranslation;
-    protected ImageView mPicture;
+    protected ImageView mRightIcon;
+    protected ImageView mLeftIcon;
     private ProgressBar mProgressBar;
     private TextView mTitle;
     private TextView mText;
@@ -140,9 +141,14 @@
     }
 
     private void resolveTemplateViews(StatusBarNotification notification) {
-        mPicture = mView.findViewById(com.android.internal.R.id.right_icon);
-        if (mPicture != null) {
-            mPicture.setTag(ImageTransformState.ICON_TAG,
+        mRightIcon = mView.findViewById(com.android.internal.R.id.right_icon);
+        if (mRightIcon != null) {
+            mRightIcon.setTag(ImageTransformState.ICON_TAG,
+                    notification.getNotification().getLargeIcon());
+        }
+        mLeftIcon = mView.findViewById(com.android.internal.R.id.left_icon);
+        if (mLeftIcon != null) {
+            mLeftIcon.setTag(ImageTransformState.ICON_TAG,
                     notification.getNotification().getLargeIcon());
         }
         mTitle = mView.findViewById(com.android.internal.R.id.title);
@@ -240,9 +246,9 @@
         resolveTemplateViews(row.getEntry().getSbn());
         super.onContentUpdated(row);
         // With the modern templates, a large icon visually overlaps the header, so we can't
-        // simply hide the header -- just show the
+        // hide the header, we must show it.
         mCanHideHeader = mNotificationHeader != null
-                && (mPicture == null || mPicture.getVisibility() != VISIBLE);
+                && (mRightIcon == null || mRightIcon.getVisibility() != VISIBLE);
         if (row.getHeaderVisibleAmount() != DEFAULT_HEADER_VISIBLE_AMOUNT) {
             setHeaderVisibleAmount(row.getHeaderVisibleAmount());
         }
@@ -260,14 +266,15 @@
             mTransformationHelper.addTransformedView(TransformableView.TRANSFORMING_VIEW_TEXT,
                     mText);
         }
-        if (mPicture != null) {
+        if (mRightIcon != null) {
             mTransformationHelper.addTransformedView(TransformableView.TRANSFORMING_VIEW_IMAGE,
-                    mPicture);
+                    mRightIcon);
         }
         if (mProgressBar != null) {
             mTransformationHelper.addTransformedView(TransformableView.TRANSFORMING_VIEW_PROGRESS,
                     mProgressBar);
         }
+        addViewsTransformingToSimilar(mLeftIcon);
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
index bf36435..0807f8a 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
@@ -4398,7 +4398,10 @@
      */
     public static Bundle getActivityOptions(int displayId,
             @Nullable RemoteAnimationAdapter animationAdapter) {
-        return getDefaultActivityOptions(animationAdapter).toBundle();
+        ActivityOptions options = getDefaultActivityOptions(animationAdapter);
+        options.setLaunchDisplayId(displayId);
+        options.setCallerDisplayId(displayId);
+        return options.toBundle();
     }
 
     /**
diff --git a/packages/SystemUI/tests/src/com/android/systemui/people/widget/PeopleSpaceWidgetManagerTest.java b/packages/SystemUI/tests/src/com/android/systemui/people/widget/PeopleSpaceWidgetManagerTest.java
index 800d859..f60fa09 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/people/widget/PeopleSpaceWidgetManagerTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/people/widget/PeopleSpaceWidgetManagerTest.java
@@ -19,14 +19,21 @@
 import static android.app.Notification.CATEGORY_MISSED_CALL;
 import static android.app.NotificationManager.IMPORTANCE_DEFAULT;
 import static android.app.NotificationManager.IMPORTANCE_HIGH;
+import static android.app.people.ConversationStatus.ACTIVITY_ANNIVERSARY;
+import static android.app.people.ConversationStatus.ACTIVITY_BIRTHDAY;
+import static android.app.people.ConversationStatus.ACTIVITY_GAME;
 
+import static com.android.systemui.people.PeopleSpaceUtils.INVALID_USER_ID;
 import static com.android.systemui.people.PeopleSpaceUtils.OPTIONS_PEOPLE_SPACE_TILE;
+import static com.android.systemui.people.PeopleSpaceUtils.PACKAGE_NAME;
+import static com.android.systemui.people.PeopleSpaceUtils.USER_ID;
 
 import static com.google.common.truth.Truth.assertThat;
 
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
@@ -38,12 +45,15 @@
 import android.app.NotificationChannel;
 import android.app.Person;
 import android.app.people.ConversationChannel;
+import android.app.people.ConversationStatus;
 import android.app.people.IPeopleManager;
+import android.app.people.PeopleManager;
 import android.app.people.PeopleSpaceTile;
 import android.appwidget.AppWidgetManager;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
+import android.content.pm.LauncherApps;
 import android.content.pm.ShortcutInfo;
 import android.graphics.drawable.Icon;
 import android.net.Uri;
@@ -56,7 +66,6 @@
 import androidx.preference.PreferenceManager;
 import androidx.test.filters.SmallTest;
 
-import com.android.internal.appwidget.IAppWidgetService;
 import com.android.systemui.R;
 import com.android.systemui.SysuiTestCase;
 import com.android.systemui.people.PeopleSpaceUtils;
@@ -76,7 +85,9 @@
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 
+import java.util.Arrays;
 import java.util.HashSet;
+import java.util.List;
 import java.util.Set;
 
 @SmallTest
@@ -99,6 +110,7 @@
     private static final String NOTIFICATION_CONTENT = "message text";
     private static final Uri URI = Uri.parse("fake_uri");
     private static final Icon ICON = Icon.createWithResource("package", R.drawable.ic_android);
+    private static final String KEY = PeopleSpaceUtils.getKey(SHORTCUT_ID, TEST_PACKAGE_A, 0);
     private static final Person PERSON = new Person.Builder()
             .setName("name")
             .setKey("abc")
@@ -121,12 +133,15 @@
 
     @Mock
     private NotificationListener mListenerService;
-    @Mock
-    private IAppWidgetService mIAppWidgetService;
+
     @Mock
     private AppWidgetManager mAppWidgetManager;
     @Mock
     private IPeopleManager mIPeopleManager;
+    @Mock
+    private PeopleManager mPeopleManager;
+    @Mock
+    private LauncherApps mLauncherApps;
 
     @Captor
     private ArgumentCaptor<NotificationHandler> mListenerCaptor;
@@ -136,13 +151,19 @@
     private final NoManSimulator mNoMan = new NoManSimulator();
     private final FakeSystemClock mClock = new FakeSystemClock();
 
+    private PeopleSpaceWidgetProvider mProvider;
+
     @Before
     public void setUp() throws Exception {
         MockitoAnnotations.initMocks(this);
+        mLauncherApps = mock(LauncherApps.class);
         mManager =
                 new PeopleSpaceWidgetManager(mContext);
-        mManager.setAppWidgetManager(mIAppWidgetService, mAppWidgetManager, mIPeopleManager);
+        mManager.setAppWidgetManager(mAppWidgetManager, mIPeopleManager, mPeopleManager,
+                mLauncherApps);
         mManager.attach(mListenerService);
+        mProvider = new PeopleSpaceWidgetProvider();
+        mProvider.setPeopleSpaceWidgetManager(mManager);
 
         verify(mListenerService).addNotificationHandler(mListenerCaptor.capture());
         NotificationHandler serviceListener = requireNonNull(mListenerCaptor.getValue());
@@ -166,7 +187,7 @@
     @Test
     public void testDoNotUpdateAppWidgetIfNoWidgets() throws Exception {
         int[] widgetIdsArray = {};
-        when(mIAppWidgetService.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
+        when(mAppWidgetManager.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
 
         StatusBarNotification sbn = createNotification(
                 OTHER_SHORTCUT_ID, /* isMessagingStyle = */ false, /* isMissedCall = */ false);
@@ -182,7 +203,7 @@
     @Test
     public void testDoNotUpdateAppWidgetIfNoShortcutInfo() throws Exception {
         int[] widgetIdsArray = {};
-        when(mIAppWidgetService.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
+        when(mAppWidgetManager.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
 
         Notification notificationWithoutShortcut = new Notification.Builder(mContext)
                 .setContentTitle("TEST_TITLE")
@@ -206,7 +227,7 @@
     @Test
     public void testDoNotUpdateAppWidgetIfNoPackage() throws Exception {
         int[] widgetIdsArray = {};
-        when(mIAppWidgetService.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
+        when(mAppWidgetManager.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
 
         StatusBarNotification sbnWithoutPackageName = new SbnBuilder()
                 .setNotification(createMessagingStyleNotification(
@@ -224,7 +245,7 @@
     @Test
     public void testDoNotUpdateAppWidgetIfNonConversationChannelModified() throws Exception {
         int[] widgetIdsArray = {1};
-        when(mIAppWidgetService.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
+        when(mAppWidgetManager.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
 
         NotificationChannel channel =
                 new NotificationChannel(TEST_CHANNEL_ID, TEST_CHANNEL_NAME, IMPORTANCE_DEFAULT);
@@ -240,7 +261,7 @@
     @Test
     public void testUpdateAppWidgetIfConversationChannelModified() throws Exception {
         int[] widgetIdsArray = {1};
-        when(mIAppWidgetService.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
+        when(mAppWidgetManager.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
 
         NotificationChannel channel =
                 new NotificationChannel(TEST_CHANNEL_ID, TEST_CHANNEL_NAME, IMPORTANCE_DEFAULT);
@@ -257,7 +278,7 @@
     @Test
     public void testDoNotUpdateNotificationPostedIfDifferentShortcutId() throws Exception {
         int[] widgetIdsArray = {WIDGET_ID_WITH_SHORTCUT, WIDGET_ID_WITHOUT_SHORTCUT};
-        when(mIAppWidgetService.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
+        when(mAppWidgetManager.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
 
         StatusBarNotification sbn = createNotification(
                 OTHER_SHORTCUT_ID, /* isMessagingStyle = */ true, /* isMissedCall = */ false);
@@ -277,7 +298,7 @@
         Settings.Global.putInt(mContext.getContentResolver(),
                 Settings.Global.PEOPLE_SPACE_CONVERSATION_TYPE, 0);
         int[] widgetIdsArray = {WIDGET_ID_WITH_SHORTCUT, WIDGET_ID_WITHOUT_SHORTCUT};
-        when(mIAppWidgetService.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
+        when(mAppWidgetManager.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
 
         StatusBarNotification sbnWithDifferentPackageName = new SbnBuilder()
                 .setNotification(createMessagingStyleNotification(
@@ -298,7 +319,7 @@
     @Test
     public void testDoNotUpdateNotificationRemovedIfDifferentShortcutId() throws Exception {
         int[] widgetIdsArray = {WIDGET_ID_WITH_SHORTCUT, WIDGET_ID_WITHOUT_SHORTCUT};
-        when(mIAppWidgetService.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
+        when(mAppWidgetManager.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
 
         StatusBarNotification sbn = createNotification(
                 OTHER_SHORTCUT_ID, /* isMessagingStyle = */ true, /* isMissedCall = */ false);
@@ -318,7 +339,7 @@
     @Test
     public void testDoNotUpdateNotificationRemovedIfDifferentPackageName() throws Exception {
         int[] widgetIdsArray = {WIDGET_ID_WITH_SHORTCUT, WIDGET_ID_WITHOUT_SHORTCUT};
-        when(mIAppWidgetService.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
+        when(mAppWidgetManager.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
 
         StatusBarNotification sbnWithDifferentPackageName = new SbnBuilder()
                 .setNotification(createMessagingStyleNotification(
@@ -339,9 +360,74 @@
     }
 
     @Test
+    public void testDoNotUpdateStatusPostedIfDifferentShortcutId() throws Exception {
+        int[] widgetIdsArray = {WIDGET_ID_WITH_SHORTCUT, WIDGET_ID_WITHOUT_SHORTCUT};
+        when(mAppWidgetManager.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
+
+        ConversationStatus status1 = new ConversationStatus.Builder(OTHER_SHORTCUT_ID,
+                ACTIVITY_GAME).setDescription("Playing a game!").build();
+        ConversationStatus status2 = new ConversationStatus.Builder(OTHER_SHORTCUT_ID,
+                ACTIVITY_BIRTHDAY).build();
+        ConversationChannel conversationChannel = getConversationWithShortcutId(OTHER_SHORTCUT_ID,
+                Arrays.asList(status1, status2));
+        mManager.updateWidgetsWithConversationChanged(conversationChannel);
+        mClock.advanceTime(MIN_LINGER_DURATION);
+
+        verify(mAppWidgetManager, never())
+                .updateAppWidgetOptions(anyInt(), any());
+        verify(mAppWidgetManager, never()).updateAppWidget(anyInt(),
+                any());
+    }
+
+    @Test
+    public void testUpdateStatusPostedIfExistingTile() throws Exception {
+        int[] widgetIdsArray = {WIDGET_ID_WITH_SHORTCUT, WIDGET_ID_WITHOUT_SHORTCUT};
+        when(mAppWidgetManager.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
+
+        ConversationStatus status = new ConversationStatus.Builder(SHORTCUT_ID,
+                ACTIVITY_GAME).setDescription("Playing a game!").build();
+        ConversationChannel conversationChannel = getConversationWithShortcutId(SHORTCUT_ID,
+                Arrays.asList(status));
+        mManager.updateWidgetsWithConversationChanged(conversationChannel);
+        mClock.advanceTime(MIN_LINGER_DURATION);
+
+        verify(mAppWidgetManager, times(1))
+                .updateAppWidgetOptions(eq(WIDGET_ID_WITH_SHORTCUT),
+                        mBundleArgumentCaptor.capture());
+        Bundle bundle = mBundleArgumentCaptor.getValue();
+        PeopleSpaceTile tile = bundle.getParcelable(OPTIONS_PEOPLE_SPACE_TILE);
+        assertThat(tile.getStatuses()).containsExactly(status);
+        verify(mAppWidgetManager, times(1)).updateAppWidget(eq(WIDGET_ID_WITH_SHORTCUT),
+                any());
+    }
+
+    @Test
+    public void testUpdateStatusPostedOnTwoExistingTiles() throws Exception {
+        addSecondWidgetForPersonTile();
+
+        ConversationStatus status = new ConversationStatus.Builder(SHORTCUT_ID,
+                ACTIVITY_ANNIVERSARY).build();
+        ConversationChannel conversationChannel = getConversationWithShortcutId(SHORTCUT_ID,
+                Arrays.asList(status));
+        mManager.updateWidgetsWithConversationChanged(conversationChannel);
+        mClock.advanceTime(MIN_LINGER_DURATION);
+
+        verify(mAppWidgetManager, times(1))
+                .updateAppWidgetOptions(eq(WIDGET_ID_WITH_SHORTCUT),
+                        any());
+        verify(mAppWidgetManager, times(1)).updateAppWidget(eq(WIDGET_ID_WITH_SHORTCUT),
+                any());
+        verify(mAppWidgetManager, times(1))
+                .updateAppWidgetOptions(eq(SECOND_WIDGET_ID_WITH_SHORTCUT),
+                        any());
+        verify(mAppWidgetManager, times(1)).updateAppWidget(eq(SECOND_WIDGET_ID_WITH_SHORTCUT),
+                any());
+    }
+
+    @Test
     public void testUpdateNotificationPostedIfExistingTile() throws Exception {
         int[] widgetIdsArray = {WIDGET_ID_WITH_SHORTCUT, WIDGET_ID_WITHOUT_SHORTCUT};
-        when(mIAppWidgetService.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
+        when(mAppWidgetManager.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
 
         NotifEvent notif1 = mNoMan.postNotif(new NotificationEntryBuilder()
                 .setSbn(createNotification(
@@ -362,17 +448,7 @@
 
     @Test
     public void testUpdateNotificationPostedOnTwoExistingTiles() throws Exception {
-        Bundle options = new Bundle();
-        options.putParcelable(PeopleSpaceUtils.OPTIONS_PEOPLE_SPACE_TILE, PERSON_TILE);
-        when(mAppWidgetManager.getAppWidgetOptions(eq(SECOND_WIDGET_ID_WITH_SHORTCUT)))
-                .thenReturn(options);
-        // Set the same Person associated on another People Tile widget ID.
-        setStorageForTile(SHORTCUT_ID, TEST_PACKAGE_A, WIDGET_ID_WITH_SHORTCUT);
-        setStorageForTile(SHORTCUT_ID, TEST_PACKAGE_A, SECOND_WIDGET_ID_WITH_SHORTCUT);
-
-        int[] widgetIdsArray = {WIDGET_ID_WITH_SHORTCUT, WIDGET_ID_WITHOUT_SHORTCUT,
-                SECOND_WIDGET_ID_WITH_SHORTCUT};
-        when(mIAppWidgetService.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
+        addSecondWidgetForPersonTile();
 
         NotifEvent notif1 = mNoMan.postNotif(new NotificationEntryBuilder()
                 .setSbn(createNotification(
@@ -395,19 +471,9 @@
     @Test
     public void testUpdateNotificationOnExistingTileAfterRemovingTileForSamePerson()
             throws Exception {
-        Bundle options = new Bundle();
-        options.putParcelable(PeopleSpaceUtils.OPTIONS_PEOPLE_SPACE_TILE, PERSON_TILE);
-        when(mAppWidgetManager.getAppWidgetOptions(eq(SECOND_WIDGET_ID_WITH_SHORTCUT)))
-                .thenReturn(options);
-        // Set the same Person associated on another People Tile widget ID.
-        setStorageForTile(SHORTCUT_ID, TEST_PACKAGE_A, WIDGET_ID_WITH_SHORTCUT);
-        setStorageForTile(SHORTCUT_ID, TEST_PACKAGE_A, SECOND_WIDGET_ID_WITH_SHORTCUT);
+        addSecondWidgetForPersonTile();
 
-        int[] widgetIdsArray = {WIDGET_ID_WITH_SHORTCUT, WIDGET_ID_WITHOUT_SHORTCUT,
-                SECOND_WIDGET_ID_WITH_SHORTCUT};
-        when(mIAppWidgetService.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
-
-        PeopleSpaceUtils.removeStorageForTile(mContext, SECOND_WIDGET_ID_WITH_SHORTCUT);
+        PeopleSpaceUtils.removeStorageForTile(mContext, KEY, SECOND_WIDGET_ID_WITH_SHORTCUT);
         NotifEvent notif1 = mNoMan.postNotif(new NotificationEntryBuilder()
                 .setSbn(createNotification(
                         SHORTCUT_ID, /* isMessagingStyle = */ true, /* isMissedCall = */ false))
@@ -430,7 +496,7 @@
     public void testUpdateMissedCallNotificationWithoutContentPostedIfExistingTile()
             throws Exception {
         int[] widgetIdsArray = {WIDGET_ID_WITH_SHORTCUT, WIDGET_ID_WITHOUT_SHORTCUT};
-        when(mIAppWidgetService.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
+        when(mAppWidgetManager.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
         setStorageForTile(SHORTCUT_ID, TEST_PACKAGE_A, WIDGET_ID_WITH_SHORTCUT);
 
         NotifEvent notif1 = mNoMan.postNotif(new NotificationEntryBuilder()
@@ -456,7 +522,7 @@
     public void testUpdateMissedCallNotificationWithContentPostedIfExistingTile()
             throws Exception {
         int[] widgetIdsArray = {WIDGET_ID_WITH_SHORTCUT, WIDGET_ID_WITHOUT_SHORTCUT};
-        when(mIAppWidgetService.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
+        when(mAppWidgetManager.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
         setStorageForTile(SHORTCUT_ID, TEST_PACKAGE_A, WIDGET_ID_WITH_SHORTCUT);
 
         NotifEvent notif1 = mNoMan.postNotif(new NotificationEntryBuilder()
@@ -480,7 +546,7 @@
     @Test
     public void testUpdateNotificationRemovedIfExistingTile() throws Exception {
         int[] widgetIdsArray = {WIDGET_ID_WITH_SHORTCUT, WIDGET_ID_WITHOUT_SHORTCUT};
-        when(mIAppWidgetService.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
+        when(mAppWidgetManager.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
 
         StatusBarNotification sbn = createNotification(
                 SHORTCUT_ID, /* isMessagingStyle = */ true, /* isMissedCall = */ false);
@@ -502,14 +568,82 @@
                 any());
     }
 
+    @Test
+    public void testDeleteAllWidgetsForConversationsUncachesShortcutAndRemovesListeners() {
+        addSecondWidgetForPersonTile();
+        mProvider.onUpdate(mContext, mAppWidgetManager,
+                new int[]{WIDGET_ID_WITH_SHORTCUT, SECOND_WIDGET_ID_WITH_SHORTCUT});
+
+        // Delete only one widget for the conversation.
+        mManager.deleteWidgets(new int[]{WIDGET_ID_WITH_SHORTCUT});
+
+        // Check deleted storage.
+        SharedPreferences widgetSp = mContext.getSharedPreferences(
+                String.valueOf(WIDGET_ID_WITH_SHORTCUT),
+                Context.MODE_PRIVATE);
+        assertThat(widgetSp.getString(PACKAGE_NAME, null)).isNull();
+        assertThat(widgetSp.getString(SHORTCUT_ID, null)).isNull();
+        assertThat(widgetSp.getInt(USER_ID, INVALID_USER_ID)).isEqualTo(INVALID_USER_ID);
+        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(mContext);
+        assertThat(sp.getStringSet(KEY, new HashSet<>())).containsExactly(
+                String.valueOf(SECOND_WIDGET_ID_WITH_SHORTCUT));
+        // Check listener & shortcut caching remain for other widget.
+        verify(mPeopleManager, never()).unregisterConversationListener(any());
+        verify(mLauncherApps, never()).uncacheShortcuts(eq(TEST_PACKAGE_A),
+                eq(Arrays.asList(SHORTCUT_ID)), eq(UserHandle.of(0)),
+                eq(LauncherApps.FLAG_CACHE_PEOPLE_TILE_SHORTCUTS));
+
+        // Delete all widgets for the conversation.
+        mProvider.onDeleted(mContext, new int[]{SECOND_WIDGET_ID_WITH_SHORTCUT});
+
+        // Check deleted storage.
+        SharedPreferences secondWidgetSp = mContext.getSharedPreferences(
+                String.valueOf(SECOND_WIDGET_ID_WITH_SHORTCUT),
+                Context.MODE_PRIVATE);
+        assertThat(secondWidgetSp.getString(PACKAGE_NAME, null)).isNull();
+        assertThat(secondWidgetSp.getString(SHORTCUT_ID, null)).isNull();
+        assertThat(secondWidgetSp.getInt(USER_ID, INVALID_USER_ID)).isEqualTo(INVALID_USER_ID);
+        assertThat(sp.getStringSet(KEY, new HashSet<>())).isEmpty();
+        // Check listener is removed and shortcut is uncached.
+        verify(mPeopleManager, times(1)).unregisterConversationListener(any());
+        verify(mLauncherApps, times(1)).uncacheShortcuts(eq(TEST_PACKAGE_A),
+                eq(Arrays.asList(SHORTCUT_ID)), eq(UserHandle.of(0)),
+                eq(LauncherApps.FLAG_CACHE_PEOPLE_TILE_SHORTCUTS));
+    }
+
+    /**
+     * Adds another widget for {@code PERSON_TILE} with widget ID: {@code
+     * SECOND_WIDGET_ID_WITH_SHORTCUT}.
+     */
+    private void addSecondWidgetForPersonTile() {
+        Bundle options = new Bundle();
+        options.putParcelable(PeopleSpaceUtils.OPTIONS_PEOPLE_SPACE_TILE, PERSON_TILE);
+        when(mAppWidgetManager.getAppWidgetOptions(eq(SECOND_WIDGET_ID_WITH_SHORTCUT)))
+                .thenReturn(options);
+        // Set the same Person associated on another People Tile widget ID.
+        setStorageForTile(SHORTCUT_ID, TEST_PACKAGE_A, WIDGET_ID_WITH_SHORTCUT);
+        setStorageForTile(SHORTCUT_ID, TEST_PACKAGE_A, SECOND_WIDGET_ID_WITH_SHORTCUT);
+        int[] widgetIdsArray = {WIDGET_ID_WITH_SHORTCUT, WIDGET_ID_WITHOUT_SHORTCUT,
+                SECOND_WIDGET_ID_WITH_SHORTCUT};
+        when(mAppWidgetManager.getAppWidgetIds(any())).thenReturn(widgetIdsArray);
+    }
+
     /**
      * Returns a single conversation associated with {@code shortcutId}.
      */
     private ConversationChannel getConversationWithShortcutId(String shortcutId) throws Exception {
+        return getConversationWithShortcutId(shortcutId, Arrays.asList());
+    }
+
+    /**
+     * Returns a single conversation associated with {@code shortcutId} and {@code statuses}.
+     */
+    private ConversationChannel getConversationWithShortcutId(String shortcutId,
+            List<ConversationStatus> statuses) throws Exception {
         ShortcutInfo shortcutInfo = new ShortcutInfo.Builder(mContext, shortcutId).setLongLabel(
                 "name").build();
         ConversationChannel convo = new ConversationChannel(shortcutInfo, 0, null, null,
-                0L, false);
+                0L, false, false, statuses);
         return convo;
     }
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/qs/tileimpl/QSTileBaseViewTest.kt b/packages/SystemUI/tests/src/com/android/systemui/qs/tileimpl/QSTileBaseViewTest.kt
new file mode 100644
index 0000000..998e070
--- /dev/null
+++ b/packages/SystemUI/tests/src/com/android/systemui/qs/tileimpl/QSTileBaseViewTest.kt
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.qs.tileimpl
+
+import android.service.quicksettings.Tile
+import android.testing.AndroidTestingRunner
+import android.text.TextUtils
+import androidx.test.filters.SmallTest
+import com.android.systemui.R
+import com.android.systemui.SysuiTestCase
+import com.android.systemui.plugins.qs.QSIconView
+import com.android.systemui.plugins.qs.QSTile
+import com.google.common.truth.Truth.assertThat
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.Mock
+import org.mockito.MockitoAnnotations
+
+@RunWith(AndroidTestingRunner::class)
+@SmallTest
+class QSTileBaseViewTest : SysuiTestCase() {
+
+    @Mock
+    private lateinit var iconView: QSIconView
+
+    private lateinit var tileView: QSTileBaseView
+
+    @Before
+    fun setUp() {
+        MockitoAnnotations.initMocks(this)
+
+        tileView = QSTileBaseView(context, iconView, false)
+    }
+
+    @Test
+    fun testSecondaryLabelNotModified_unavailable() {
+        val state = QSTile.State()
+        val testString = "TEST STRING"
+        state.state = Tile.STATE_UNAVAILABLE
+        state.secondaryLabel = testString
+
+        tileView.handleStateChanged(state)
+
+        assertThat(state.secondaryLabel as CharSequence).isEqualTo(testString)
+    }
+
+    @Test
+    fun testSecondaryLabelNotModified_booleanInactive() {
+        val state = QSTile.BooleanState()
+        val testString = "TEST STRING"
+        state.state = Tile.STATE_INACTIVE
+        state.secondaryLabel = testString
+
+        tileView.handleStateChanged(state)
+
+        assertThat(state.secondaryLabel as CharSequence).isEqualTo(testString)
+    }
+
+    @Test
+    fun testSecondaryLabelNotModified_booleanActive() {
+        val state = QSTile.BooleanState()
+        val testString = "TEST STRING"
+        state.state = Tile.STATE_ACTIVE
+        state.secondaryLabel = testString
+
+        tileView.handleStateChanged(state)
+
+        assertThat(state.secondaryLabel as CharSequence).isEqualTo(testString)
+    }
+
+    @Test
+    fun testSecondaryLabelNotModified_availableNotBoolean_inactive() {
+        val state = QSTile.State()
+        state.state = Tile.STATE_INACTIVE
+        state.secondaryLabel = ""
+
+        tileView.handleStateChanged(state)
+
+        assertThat(TextUtils.isEmpty(state.secondaryLabel)).isTrue()
+    }
+
+    @Test
+    fun testSecondaryLabelNotModified_availableNotBoolean_active() {
+        val state = QSTile.State()
+        state.state = Tile.STATE_ACTIVE
+        state.secondaryLabel = ""
+
+        tileView.handleStateChanged(state)
+
+        assertThat(TextUtils.isEmpty(state.secondaryLabel)).isTrue()
+    }
+
+    @Test
+    fun testSecondaryLabelDescription_unavailable() {
+        val state = QSTile.State()
+        state.state = Tile.STATE_UNAVAILABLE
+        state.secondaryLabel = ""
+
+        tileView.handleStateChanged(state)
+
+        assertThat(state.secondaryLabel as CharSequence).isEqualTo(
+            context.getString(R.string.tile_unavailable)
+        )
+    }
+
+    @Test
+    fun testSecondaryLabelDescription_booleanInactive() {
+        val state = QSTile.BooleanState()
+        state.state = Tile.STATE_INACTIVE
+        state.secondaryLabel = ""
+
+        tileView.handleStateChanged(state)
+
+        assertThat(state.secondaryLabel as CharSequence).isEqualTo(
+            context.getString(R.string.switch_bar_off)
+        )
+    }
+
+    @Test
+    fun testSecondaryLabelDescription_booleanActive() {
+        val state = QSTile.BooleanState()
+        state.state = Tile.STATE_ACTIVE
+        state.secondaryLabel = ""
+
+        tileView.handleStateChanged(state)
+
+        assertThat(state.secondaryLabel as CharSequence).isEqualTo(
+            context.getString(R.string.switch_bar_on)
+        )
+    }
+}
\ No newline at end of file
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerBaseTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerBaseTest.java
index b1b71cc..999d282 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerBaseTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerBaseTest.java
@@ -50,11 +50,11 @@
 import android.provider.Settings.Global;
 import android.telephony.CellSignalStrength;
 import android.telephony.NetworkRegistrationInfo;
-import android.telephony.PhoneStateListener;
 import android.telephony.ServiceState;
 import android.telephony.SignalStrength;
 import android.telephony.SubscriptionInfo;
 import android.telephony.SubscriptionManager;
+import android.telephony.TelephonyCallback;
 import android.telephony.TelephonyDisplayInfo;
 import android.telephony.TelephonyManager;
 import android.testing.TestableLooper;
@@ -106,7 +106,6 @@
 
     protected NetworkControllerImpl mNetworkController;
     protected MobileSignalController mMobileSignalController;
-    protected PhoneStateListener mPhoneStateListener;
     protected SignalStrength mSignalStrength;
     protected ServiceState mServiceState;
     protected TelephonyDisplayInfo mTelephonyDisplayInfo;
@@ -250,8 +249,6 @@
         setDefaultSubId(mSubId);
         setSubscriptions(mSubId);
         mMobileSignalController = mNetworkController.mMobileSignalControllers.get(mSubId);
-        mPhoneStateListener = mMobileSignalController.mMobileStatusTracker.getPhoneStateListener();
-
         ArgumentCaptor<ConnectivityManager.NetworkCallback> callbackArg =
             ArgumentCaptor.forClass(ConnectivityManager.NetworkCallback.class);
         verify(mMockCm, atLeastOnce())
@@ -455,18 +452,16 @@
 
     private void updateSignalStrength() {
         Log.d(TAG, "Sending Signal Strength: " + mSignalStrength);
-        mPhoneStateListener.onSignalStrengthsChanged(mSignalStrength);
+        mMobileSignalController.mMobileStatusTracker.getTelephonyCallback()
+                .onSignalStrengthsChanged(mSignalStrength);
     }
 
     protected void updateServiceState() {
         Log.d(TAG, "Sending Service State: " + mServiceState);
-        mPhoneStateListener.onServiceStateChanged(mServiceState);
-        mPhoneStateListener.onDisplayInfoChanged(mTelephonyDisplayInfo);
-    }
-
-    public void updateCallState(int state) {
-        // Inputs not currently used in NetworkControllerImpl.
-        mPhoneStateListener.onCallStateChanged(state, "0123456789");
+        mMobileSignalController.mMobileStatusTracker.getTelephonyCallback()
+                .onServiceStateChanged(mServiceState);
+        mMobileSignalController.mMobileStatusTracker.getTelephonyCallback()
+                .onDisplayInfoChanged(mTelephonyDisplayInfo);
     }
 
     public void updateDataConnectionState(int dataState, int dataNetType) {
@@ -478,16 +473,19 @@
         when(mServiceState.getNetworkRegistrationInfo(DOMAIN_PS, TRANSPORT_TYPE_WWAN))
                 .thenReturn(fakeRegInfo);
         when(mTelephonyDisplayInfo.getNetworkType()).thenReturn(dataNetType);
-        mPhoneStateListener.onDataConnectionStateChanged(dataState, dataNetType);
+        mMobileSignalController.mMobileStatusTracker.getTelephonyCallback()
+                .onDataConnectionStateChanged(dataState, dataNetType);
     }
 
     public void updateDataActivity(int dataActivity) {
-        mPhoneStateListener.onDataActivity(dataActivity);
+        mMobileSignalController.mMobileStatusTracker.getTelephonyCallback()
+                .onDataActivity(dataActivity);
     }
 
     public void setCarrierNetworkChange(boolean enable) {
         Log.d(TAG, "setCarrierNetworkChange(" + enable + ")");
-        mPhoneStateListener.onCarrierNetworkChange(enable);
+        mMobileSignalController.mMobileStatusTracker.getTelephonyCallback()
+                .onCarrierNetworkChange(enable);
     }
 
     protected void verifyHasNoSims(boolean hasNoSimsVisible) {
diff --git a/services/accessibility/java/com/android/server/accessibility/ActionReplacingCallback.java b/services/accessibility/java/com/android/server/accessibility/ActionReplacingCallback.java
index bafb641..6828dd9 100644
--- a/services/accessibility/java/com/android/server/accessibility/ActionReplacingCallback.java
+++ b/services/accessibility/java/com/android/server/accessibility/ActionReplacingCallback.java
@@ -40,29 +40,34 @@
     private final IAccessibilityInteractionConnectionCallback mServiceCallback;
     private final IAccessibilityInteractionConnection mConnectionWithReplacementActions;
     private final int mInteractionId;
+    private final int mNodeWithReplacementActionsInteractionId;
     private final Object mLock = new Object();
 
     @GuardedBy("mLock")
-    List<AccessibilityNodeInfo> mNodesWithReplacementActions;
+    private boolean mReplacementNodeIsReadyOrFailed;
+
+    @GuardedBy("mLock")
+    AccessibilityNodeInfo mNodeWithReplacementActions;
 
     @GuardedBy("mLock")
     List<AccessibilityNodeInfo> mNodesFromOriginalWindow;
 
     @GuardedBy("mLock")
+    boolean mSetFindNodeFromOriginalWindowCalled = false;
+
+    @GuardedBy("mLock")
     AccessibilityNodeInfo mNodeFromOriginalWindow;
 
-    // Keep track of whether or not we've been called back for a single node
     @GuardedBy("mLock")
-    boolean mSingleNodeCallbackHappened;
+    boolean mSetFindNodesFromOriginalWindowCalled = false;
 
-    // Keep track of whether or not we've been called back for multiple node
-    @GuardedBy("mLock")
-    boolean mMultiNodeCallbackHappened;
 
-    // We shouldn't get any more callbacks after we've called back the original service, but
-    // keep track to make sure we catch such strange things
     @GuardedBy("mLock")
-    boolean mDone;
+    List<AccessibilityNodeInfo> mPrefetchedNodesFromOriginalWindow;
+
+    @GuardedBy("mLock")
+    boolean mSetPrefetchFromOriginalWindowCalled = false;
+
 
     public ActionReplacingCallback(IAccessibilityInteractionConnectionCallback serviceCallback,
             IAccessibilityInteractionConnection connectionWithReplacementActions,
@@ -70,19 +75,20 @@
         mServiceCallback = serviceCallback;
         mConnectionWithReplacementActions = connectionWithReplacementActions;
         mInteractionId = interactionId;
+        mNodeWithReplacementActionsInteractionId = interactionId + 1;
 
         // Request the root node of the replacing window
         final long identityToken = Binder.clearCallingIdentity();
         try {
             mConnectionWithReplacementActions.findAccessibilityNodeInfoByAccessibilityId(
-                    AccessibilityNodeInfo.ROOT_NODE_ID, null, interactionId + 1, this, 0,
+                    AccessibilityNodeInfo.ROOT_NODE_ID, null,
+                    mNodeWithReplacementActionsInteractionId, this, 0,
                     interrogatingPid, interrogatingTid, null, null);
         } catch (RemoteException re) {
             if (DEBUG) {
                 Slog.e(LOG_TAG, "Error calling findAccessibilityNodeInfoByAccessibilityId()");
             }
-            // Pretend we already got a (null) list of replacement nodes
-            mMultiNodeCallbackHappened = true;
+            mReplacementNodeIsReadyOrFailed = true;
         } finally {
             Binder.restoreCallingIdentity(identityToken);
         }
@@ -90,46 +96,67 @@
 
     @Override
     public void setFindAccessibilityNodeInfoResult(AccessibilityNodeInfo info, int interactionId) {
-        boolean readyForCallback;
-        synchronized(mLock) {
+        synchronized (mLock) {
             if (interactionId == mInteractionId) {
                 mNodeFromOriginalWindow = info;
+                mSetFindNodeFromOriginalWindowCalled = true;
+            } else if (interactionId == mNodeWithReplacementActionsInteractionId) {
+                mNodeWithReplacementActions = info;
+                mReplacementNodeIsReadyOrFailed = true;
             } else {
                 Slog.e(LOG_TAG, "Callback with unexpected interactionId");
                 return;
             }
-
-            mSingleNodeCallbackHappened = true;
-            readyForCallback = mMultiNodeCallbackHappened;
         }
-        if (readyForCallback) {
-            replaceInfoActionsAndCallService();
-        }
+        replaceInfoActionsAndCallServiceIfReady();
     }
 
     @Override
     public void setFindAccessibilityNodeInfosResult(List<AccessibilityNodeInfo> infos,
             int interactionId) {
-        boolean callbackForSingleNode;
-        boolean callbackForMultipleNodes;
-        synchronized(mLock) {
+        synchronized (mLock) {
             if (interactionId == mInteractionId) {
                 mNodesFromOriginalWindow = infos;
-            } else if (interactionId == mInteractionId + 1) {
-                mNodesWithReplacementActions = infos;
+                mSetFindNodesFromOriginalWindowCalled = true;
+            } else if (interactionId == mNodeWithReplacementActionsInteractionId) {
+                setNodeWithReplacementActionsFromList(infos);
+                mReplacementNodeIsReadyOrFailed = true;
             } else {
                 Slog.e(LOG_TAG, "Callback with unexpected interactionId");
                 return;
             }
-            callbackForSingleNode = mSingleNodeCallbackHappened;
-            callbackForMultipleNodes = mMultiNodeCallbackHappened;
-            mMultiNodeCallbackHappened = true;
         }
-        if (callbackForSingleNode) {
-            replaceInfoActionsAndCallService();
+        replaceInfoActionsAndCallServiceIfReady();
+    }
+
+    @Override
+    public void setPrefetchAccessibilityNodeInfoResult(List<AccessibilityNodeInfo> infos,
+                                                       int interactionId)
+            throws RemoteException {
+        synchronized (mLock) {
+            if (interactionId == mInteractionId) {
+                mPrefetchedNodesFromOriginalWindow = infos;
+                mSetPrefetchFromOriginalWindowCalled = true;
+            }  else {
+                Slog.e(LOG_TAG, "Callback with unexpected interactionId");
+                return;
+            }
         }
-        if (callbackForMultipleNodes) {
-            replaceInfosActionsAndCallService();
+        replaceInfoActionsAndCallServiceIfReady();
+    }
+
+    private void replaceInfoActionsAndCallServiceIfReady() {
+        replaceInfoActionsAndCallService();
+        replaceInfosActionsAndCallService();
+        replacePrefetchInfosActionsAndCallService();
+    }
+
+    private void setNodeWithReplacementActionsFromList(List<AccessibilityNodeInfo> infos) {
+        for (int i = 0; i < infos.size(); i++) {
+            AccessibilityNodeInfo info = infos.get(i);
+            if (info.getSourceNodeId() == AccessibilityNodeInfo.ROOT_NODE_ID) {
+                mNodeWithReplacementActions = info;
+            }
         }
     }
 
@@ -142,55 +169,81 @@
 
     private void replaceInfoActionsAndCallService() {
         final AccessibilityNodeInfo nodeToReturn;
+        boolean doCallback = false;
         synchronized (mLock) {
-            if (mDone) {
-                if (DEBUG) {
-                    Slog.e(LOG_TAG, "Extra callback");
-                }
-                return;
-            }
-            if (mNodeFromOriginalWindow != null) {
+            doCallback = mReplacementNodeIsReadyOrFailed
+                    && mSetFindNodeFromOriginalWindowCalled;
+            if (doCallback && mNodeFromOriginalWindow != null) {
                 replaceActionsOnInfoLocked(mNodeFromOriginalWindow);
+                mSetFindNodeFromOriginalWindowCalled = false;
             }
-            recycleReplaceActionNodesLocked();
             nodeToReturn = mNodeFromOriginalWindow;
-            mDone = true;
         }
-        try {
-            mServiceCallback.setFindAccessibilityNodeInfoResult(nodeToReturn, mInteractionId);
-        } catch (RemoteException re) {
-            if (DEBUG) {
-                Slog.e(LOG_TAG, "Failed to setFindAccessibilityNodeInfoResult");
+        if (doCallback) {
+            try {
+                mServiceCallback.setFindAccessibilityNodeInfoResult(nodeToReturn, mInteractionId);
+            } catch (RemoteException re) {
+                if (DEBUG) {
+                    Slog.e(LOG_TAG, "Failed to setFindAccessibilityNodeInfoResult");
+                }
             }
         }
     }
 
     private void replaceInfosActionsAndCallService() {
-        final List<AccessibilityNodeInfo> nodesToReturn;
+        List<AccessibilityNodeInfo> nodesToReturn = null;
+        boolean doCallback = false;
         synchronized (mLock) {
-            if (mDone) {
+            doCallback = mReplacementNodeIsReadyOrFailed
+                    && mSetFindNodesFromOriginalWindowCalled;
+            if (doCallback) {
+                nodesToReturn = replaceActionsLocked(mNodesFromOriginalWindow);
+                mSetFindNodesFromOriginalWindowCalled = false;
+            }
+        }
+        if (doCallback) {
+            try {
+                mServiceCallback.setFindAccessibilityNodeInfosResult(nodesToReturn, mInteractionId);
+            } catch (RemoteException re) {
                 if (DEBUG) {
-                    Slog.e(LOG_TAG, "Extra callback");
-                }
-                return;
-            }
-            if (mNodesFromOriginalWindow != null) {
-                for (int i = 0; i < mNodesFromOriginalWindow.size(); i++) {
-                    replaceActionsOnInfoLocked(mNodesFromOriginalWindow.get(i));
+                    Slog.e(LOG_TAG, "Failed to setFindAccessibilityNodeInfosResult");
                 }
             }
-            recycleReplaceActionNodesLocked();
-            nodesToReturn = (mNodesFromOriginalWindow == null)
-                    ? null : new ArrayList<>(mNodesFromOriginalWindow);
-            mDone = true;
         }
-        try {
-            mServiceCallback.setFindAccessibilityNodeInfosResult(nodesToReturn, mInteractionId);
-        } catch (RemoteException re) {
-            if (DEBUG) {
-                Slog.e(LOG_TAG, "Failed to setFindAccessibilityNodeInfosResult");
+    }
+
+    private void replacePrefetchInfosActionsAndCallService() {
+        List<AccessibilityNodeInfo> nodesToReturn = null;
+        boolean doCallback = false;
+        synchronized (mLock) {
+            doCallback = mReplacementNodeIsReadyOrFailed
+                    && mSetPrefetchFromOriginalWindowCalled;
+            if (doCallback) {
+                nodesToReturn = replaceActionsLocked(mPrefetchedNodesFromOriginalWindow);
+                mSetPrefetchFromOriginalWindowCalled = false;
             }
         }
+        if (doCallback) {
+            try {
+                mServiceCallback.setPrefetchAccessibilityNodeInfoResult(
+                        nodesToReturn, mInteractionId);
+            } catch (RemoteException re) {
+                if (DEBUG) {
+                    Slog.e(LOG_TAG, "Failed to setFindAccessibilityNodeInfosResult");
+                }
+            }
+        }
+    }
+
+    @GuardedBy("mLock")
+    private List<AccessibilityNodeInfo> replaceActionsLocked(List<AccessibilityNodeInfo> infos) {
+        if (infos != null) {
+            for (int i = 0; i < infos.size(); i++) {
+                replaceActionsOnInfoLocked(infos.get(i));
+            }
+        }
+        return (infos == null)
+                ? null : new ArrayList<>(infos);
     }
 
     @GuardedBy("mLock")
@@ -204,40 +257,22 @@
         info.setDismissable(false);
         // We currently only replace actions for the root node
         if ((info.getSourceNodeId() == AccessibilityNodeInfo.ROOT_NODE_ID)
-                && mNodesWithReplacementActions != null) {
-            // This list should always contain a single node with the root ID
-            for (int i = 0; i < mNodesWithReplacementActions.size(); i++) {
-                AccessibilityNodeInfo nodeWithReplacementActions =
-                        mNodesWithReplacementActions.get(i);
-                if (nodeWithReplacementActions.getSourceNodeId()
-                        == AccessibilityNodeInfo.ROOT_NODE_ID) {
-                    List<AccessibilityAction> actions = nodeWithReplacementActions.getActionList();
-                    if (actions != null) {
-                        for (int j = 0; j < actions.size(); j++) {
-                            info.addAction(actions.get(j));
-                        }
-                        // The PIP needs to be able to take accessibility focus
-                        info.addAction(AccessibilityAction.ACTION_ACCESSIBILITY_FOCUS);
-                        info.addAction(AccessibilityAction.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
-                    }
-                    info.setClickable(nodeWithReplacementActions.isClickable());
-                    info.setFocusable(nodeWithReplacementActions.isFocusable());
-                    info.setContextClickable(nodeWithReplacementActions.isContextClickable());
-                    info.setScrollable(nodeWithReplacementActions.isScrollable());
-                    info.setLongClickable(nodeWithReplacementActions.isLongClickable());
-                    info.setDismissable(nodeWithReplacementActions.isDismissable());
+                && mNodeWithReplacementActions != null) {
+            List<AccessibilityAction> actions = mNodeWithReplacementActions.getActionList();
+            if (actions != null) {
+                for (int j = 0; j < actions.size(); j++) {
+                    info.addAction(actions.get(j));
                 }
+                // The PIP needs to be able to take accessibility focus
+                info.addAction(AccessibilityAction.ACTION_ACCESSIBILITY_FOCUS);
+                info.addAction(AccessibilityAction.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
             }
+            info.setClickable(mNodeWithReplacementActions.isClickable());
+            info.setFocusable(mNodeWithReplacementActions.isFocusable());
+            info.setContextClickable(mNodeWithReplacementActions.isContextClickable());
+            info.setScrollable(mNodeWithReplacementActions.isScrollable());
+            info.setLongClickable(mNodeWithReplacementActions.isLongClickable());
+            info.setDismissable(mNodeWithReplacementActions.isDismissable());
         }
     }
-
-    @GuardedBy("mLock")
-    private void recycleReplaceActionNodesLocked() {
-        if (mNodesWithReplacementActions == null) return;
-        for (int i = mNodesWithReplacementActions.size() - 1; i >= 0; i--) {
-            AccessibilityNodeInfo nodeWithReplacementAction = mNodesWithReplacementActions.get(i);
-            nodeWithReplacementAction.recycle();
-        }
-        mNodesWithReplacementActions = null;
-    }
 }
diff --git a/core/java/com/android/server/BootReceiver.java b/services/core/java/com/android/server/BootReceiver.java
similarity index 76%
rename from core/java/com/android/server/BootReceiver.java
rename to services/core/java/com/android/server/BootReceiver.java
index fe3042d..d83e2fd 100644
--- a/core/java/com/android/server/BootReceiver.java
+++ b/services/core/java/com/android/server/BootReceiver.java
@@ -16,6 +16,8 @@
 
 package com.android.server;
 
+import static android.system.OsConstants.O_RDONLY;
+
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
@@ -24,12 +26,15 @@
 import android.os.DropBoxManager;
 import android.os.Environment;
 import android.os.FileUtils;
+import android.os.MessageQueue.OnFileDescriptorEventListener;
 import android.os.RecoverySystem;
 import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.os.SystemProperties;
 import android.os.storage.StorageManager;
 import android.provider.Downloads;
+import android.system.ErrnoException;
+import android.system.Os;
 import android.text.TextUtils;
 import android.util.AtomicFile;
 import android.util.EventLog;
@@ -46,11 +51,15 @@
 import org.xmlpull.v1.XmlPullParser;
 import org.xmlpull.v1.XmlPullParserException;
 
+import java.io.BufferedReader;
 import java.io.File;
+import java.io.FileDescriptor;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.regex.Matcher;
@@ -116,6 +125,12 @@
     private static final String METRIC_SYSTEM_SERVER = "shutdown_system_server";
     private static final String METRIC_SHUTDOWN_TIME_START = "begin_shutdown";
 
+    // Location of ftrace pipe for notifications from kernel memory tools like KFENCE and KASAN.
+    private static final String ERROR_REPORT_TRACE_PIPE =
+            "/sys/kernel/tracing/instances/bootreceiver/trace_pipe";
+    // Avoid reporing the same bug from processDmesg() twice.
+    private static String sLastReportedBug = null;
+
     @Override
     public void onReceive(final Context context, Intent intent) {
         // Log boot events in the background to avoid blocking the main thread with I/O
@@ -143,6 +158,209 @@
 
             }
         }.start();
+
+        FileDescriptor tracefd = null;
+        try {
+            tracefd = Os.open(ERROR_REPORT_TRACE_PIPE, O_RDONLY, 0600);
+        } catch (ErrnoException e) {
+            Slog.wtf(TAG, "Could not open " + ERROR_REPORT_TRACE_PIPE, e);
+            return;
+        }
+
+        /*
+         * Event listener to watch for memory tool error reports.
+         * We read from /sys/kernel/tracing/instances/bootreceiver/trace_pipe (set up by the
+         * system), which will print an ftrace event when a memory corruption is detected in the
+         * kernel.
+         * When an error is detected, we run the dmesg shell command and process its output.
+         */
+        OnFileDescriptorEventListener traceCallback = new OnFileDescriptorEventListener() {
+            final int mBufferSize = 1024;
+            byte[] mTraceBuffer = new byte[mBufferSize];
+            @Override
+            public int onFileDescriptorEvents(FileDescriptor fd, int events) {
+                /*
+                 * Read from the tracing pipe set up to monitor the error_report_end events.
+                 * When a tracing event occurs, the kernel writes a short (~100 bytes) line to the
+                 * pipe, e.g.:
+                 *   ...-11210  [004] d..1   285.322307: error_report_end: [kfence] ffffff8938a05000
+                 * The buffer size we use for reading should be enough to read the whole
+                 * line, but to be on the safe side we keep reading until the buffer
+                 * contains a '\n' character. In the unlikely case of a very buggy kernel
+                 * the buffer may contain multiple tracing events that cannot be attributed
+                 * to particular error reports. In that case the latest error report
+                 * residing in dmesg is picked.
+                 */
+                try {
+                    int nbytes = Os.read(fd, mTraceBuffer, 0, mBufferSize);
+                    if (nbytes > 0) {
+                        String readStr = new String(mTraceBuffer);
+                        if (readStr.indexOf("\n") == -1) {
+                            return OnFileDescriptorEventListener.EVENT_INPUT;
+                        }
+                        processDmesg(context);
+                    }
+                } catch (Exception e) {
+                    Slog.wtf(TAG, "Error processing dmesg output", e);
+                    return 0;  // Unregister the handler.
+                }
+                return OnFileDescriptorEventListener.EVENT_INPUT;
+            }
+        };
+
+        IoThread.get().getLooper().getQueue().addOnFileDescriptorEventListener(
+                tracefd, OnFileDescriptorEventListener.EVENT_INPUT, traceCallback);
+
+    }
+
+    /**
+     * Check whether it is safe to collect this dmesg line or not.
+     *
+     * We only consider lines belonging to KASAN or KFENCE reports, but those may still contain
+     * user information, namely the process name:
+     *
+     *   [   69.547684] [ T6006]c7   6006  CPU: 7 PID: 6006 Comm: sh Tainted: G S       C O      ...
+     *
+     * hardware information:
+     *
+     *   [   69.558923] [ T6006]c7   6006  Hardware name: <REDACTED>
+     *
+     * or register dump (in KASAN reports only):
+     *
+     *   ... RIP: 0033:0x7f96443109da
+     *   ... RSP: 002b:00007ffcf0b51b08 EFLAGS: 00000202 ORIG_RAX: 00000000000000af
+     *   ... RAX: ffffffffffffffda RBX: 000055dc3ee521a0 RCX: 00007f96443109da
+     *
+     * (on x86_64)
+     *
+     *   ... pc : lpm_cpuidle_enter+0x258/0x384
+     *   ... lr : lpm_cpuidle_enter+0x1d4/0x384
+     *   ... sp : ffffff800820bea0
+     *   ... x29: ffffff800820bea0 x28: ffffffc2305f3ce0
+     *   ... ...
+     *   ... x9 : 0000000000000001 x8 : 0000000000000000
+     * (on ARM64)
+     *
+     * We therefore omit the lines that contain "Comm:", "Hardware name:", or match the general
+     * purpose register regexp.
+     *
+     * @param  line single line of `dmesg` output.
+     * @return      updated line with sensitive data removed, or null if the line must be skipped.
+     */
+    public static String stripSensitiveData(String line) {
+        /*
+         * General purpose register names begin with "R" on x86_64 and "x" on ARM64. The letter is
+         * followed by two symbols (numbers, letters or spaces) and a colon, which is followed by a
+         * 16-digit hex number. The optional "_" prefix accounts for ORIG_RAX on x86.
+         */
+        final String registerRegex = "[ _][Rx]..: [0-9a-f]{16}";
+        final Pattern registerPattern = Pattern.compile(registerRegex);
+
+        final String corruptionRegex = "Detected corrupted memory at 0x[0-9a-f]+";
+        final Pattern corruptionPattern = Pattern.compile(corruptionRegex);
+
+        if (line.contains("Comm: ") || line.contains("Hardware name: ")) return null;
+        if (registerPattern.matcher(line).find()) return null;
+
+        Matcher cm = corruptionPattern.matcher(line);
+        if (cm.find()) return cm.group(0);
+        return line;
+    }
+
+    /*
+     * Search dmesg output for the last error report from KFENCE or KASAN and copy it to Dropbox.
+     *
+     * Example report printed by the kernel (redacted to fit into 100 column limit):
+     *   [   69.236673] [ T6006]c7   6006  =========================================================
+     *   [   69.245688] [ T6006]c7   6006  BUG: KFENCE: out-of-bounds in kfence_handle_page_fault
+     *   [   69.245688] [ T6006]c7   6006
+     *   [   69.257816] [ T6006]c7   6006  Out-of-bounds access at 0xffffffca75c45000 (...)
+     *   [   69.267102] [ T6006]c7   6006   kfence_handle_page_fault+0x1bc/0x208
+     *   [   69.273536] [ T6006]c7   6006   __do_kernel_fault+0xa8/0x11c
+     *   ...
+     *   [   69.355427] [ T6006]c7   6006  kfence-#2 [0xffffffca75c46f30-0xffffffca75c46fff, ...
+     *   [   69.366938] [ T6006]c7   6006   __d_alloc+0x3c/0x1b4
+     *   [   69.371946] [ T6006]c7   6006   d_alloc_parallel+0x48/0x538
+     *   [   69.377578] [ T6006]c7   6006   __lookup_slow+0x60/0x15c
+     *   ...
+     *   [   69.547684] [ T6006]c7   6006  CPU: 7 PID: 6006 Comm: sh Tainted: G S       C O      ...
+     *   [   69.558923] [ T6006]c7   6006  Hardware name: <REDACTED>
+     *   [   69.567059] [ T6006]c7   6006  =========================================================
+     *
+     *   We rely on the kernel printing task/CPU ID for every log line (CONFIG_PRINTK_CALLER=y).
+     *   E.g. for the above report the task ID is T6006. Report lines may interleave with lines
+     *   printed by other kernel tasks, which will have different task IDs, so in order to collect
+     *   the report we:
+     *    - find the next occurrence of the "BUG: " line in the kernel log, parse it to obtain the
+     *      task ID and the tool name;
+     *    - scan the rest of dmesg output and pick every line that has the same task ID, until we
+     *      encounter a horizontal ruler, i.e.:
+     *      [   69.567059] [ T6006]c7   6006  ======================================================
+     *    - add that line to the error report, unless it contains sensitive information (see
+     *      logLinePotentiallySensitive())
+     *    - repeat the above steps till the last report is found.
+     */
+    private void processDmesg(Context ctx) throws IOException {
+
+        /*
+         * Only SYSTEM_KASAN_ERROR_REPORT and SYSTEM_KFENCE_ERROR_REPORT are supported at the
+         * moment.
+         */
+        final String[] bugTypes = new String[] { "KASAN", "KFENCE" };
+        final String tsRegex = "^\\[[^]]+\\] ";
+        final String bugRegex =
+                tsRegex + "\\[([^]]+)\\].*BUG: (" + String.join("|", bugTypes) + "):";
+        final Pattern bugPattern = Pattern.compile(bugRegex);
+
+        Process p = new ProcessBuilder("/system/bin/timeout", "-k", "90s", "60s",
+                                       "dmesg").redirectErrorStream(true).start();
+        BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
+        String line = null;
+        String task = null;
+        String tool = null;
+        String bugTitle = null;
+        Pattern reportPattern = null;
+        ArrayList<String> currentReport = null;
+        String lastReport = null;
+
+        while ((line = reader.readLine()) != null) {
+            if (currentReport == null) {
+                Matcher bm = bugPattern.matcher(line);
+                if (!bm.find()) continue;
+                task = bm.group(1);
+                tool = bm.group(2);
+                bugTitle = line;
+                currentReport = new ArrayList<String>();
+                currentReport.add(line);
+                String reportRegex = tsRegex + "\\[" + task + "\\].*";
+                reportPattern = Pattern.compile(reportRegex);
+                continue;
+            }
+            Matcher rm = reportPattern.matcher(line);
+            if (!rm.matches()) continue;
+            if ((line = stripSensitiveData(line)) == null) continue;
+            if (line.contains("================================")) {
+                lastReport = String.join("\n", currentReport);
+                currentReport = null;
+                continue;
+            }
+            currentReport.add(line);
+        }
+        if (lastReport == null) {
+            Slog.w(TAG, "Could not find report in dmesg.");
+            return;
+        }
+
+        // Avoid sending the same bug report twice.
+        if (bugTitle == sLastReportedBug) return;
+
+        final String reportTag = "SYSTEM_" + tool + "_ERROR_REPORT";
+        final DropBoxManager db = ctx.getSystemService(DropBoxManager.class);
+        final String headers = getCurrentBootHeaders();
+        final String reportText = headers + lastReport;
+
+        addTextToDropBox(db, reportTag, reportText, "/dev/kmsg", LOG_SIZE);
+        sLastReportedBug = bugTitle;
     }
 
     private void removeOldUpdatePackages(Context context) {
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 256e963..0b7dbde 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -1886,27 +1886,49 @@
         }
     }
 
+    // TODO: Consider delete this function or turn it into a no-op method.
     @Override
     public NetworkState[] getAllNetworkState() {
         // This contains IMSI details, so make sure the caller is privileged.
         PermissionUtils.enforceNetworkStackPermission(mContext);
 
         final ArrayList<NetworkState> result = new ArrayList<>();
-        for (Network network : getAllNetworks()) {
-            final NetworkAgentInfo nai = getNetworkAgentInfoForNetwork(network);
-            // TODO: Consider include SUSPENDED networks.
+        for (NetworkStateSnapshot snapshot : getAllNetworkStateSnapshot()) {
+            // NetworkStateSnapshot doesn't contain NetworkInfo, so need to fetch it from the
+            // NetworkAgentInfo.
+            final NetworkAgentInfo nai = getNetworkAgentInfoForNetwork(snapshot.network);
             if (nai != null && nai.networkInfo.isConnected()) {
-                // TODO (b/73321673) : NetworkState contains a copy of the
-                // NetworkCapabilities, which may contain UIDs of apps to which the
-                // network applies. Should the UIDs be cleared so as not to leak or
-                // interfere ?
-                result.add(nai.getNetworkState());
+                result.add(new NetworkState(new NetworkInfo(nai.networkInfo),
+                        snapshot.linkProperties, snapshot.networkCapabilities, snapshot.network,
+                        snapshot.subscriberId));
             }
         }
         return result.toArray(new NetworkState[result.size()]);
     }
 
     @Override
+    @NonNull
+    public List<NetworkStateSnapshot> getAllNetworkStateSnapshot() {
+        // This contains IMSI details, so make sure the caller is privileged.
+        PermissionUtils.enforceNetworkStackPermission(mContext);
+
+        final ArrayList<NetworkStateSnapshot> result = new ArrayList<>();
+        for (Network network : getAllNetworks()) {
+            final NetworkAgentInfo nai = getNetworkAgentInfoForNetwork(network);
+            // TODO: Consider include SUSPENDED networks, which should be considered as
+            //  temporary shortage of connectivity of a connected network.
+            if (nai != null && nai.networkInfo.isConnected()) {
+                // TODO (b/73321673) : NetworkStateSnapshot contains a copy of the
+                // NetworkCapabilities, which may contain UIDs of apps to which the
+                // network applies. Should the UIDs be cleared so as not to leak or
+                // interfere ?
+                result.add(nai.getNetworkStateSnapshot());
+            }
+        }
+        return result;
+    }
+
+    @Override
     public boolean isActiveNetworkMetered() {
         enforceAccessPermission();
 
@@ -7161,7 +7183,7 @@
                         toUidRangeStableParcels(nri.getUids()));
             }
         } catch (RemoteException | ServiceSpecificException e) {
-            loge("Exception setting OEM network preference default network", e);
+            loge("Exception setting app default network", e);
         }
     }
 
@@ -7248,7 +7270,7 @@
         }
 
         void addRequestReassignment(@NonNull final RequestReassignment reassignment) {
-            if (!Build.IS_USER) {
+            if (Build.IS_DEBUGGABLE) {
                 // The code is never supposed to add two reassignments of the same request. Make
                 // sure this stays true, but without imposing this expensive check on all
                 // reassignments on all user devices.
@@ -9046,7 +9068,7 @@
         }
         final ArraySet<NetworkRequestInfo> nris =
                 new OemNetworkRequestFactory().createNrisFromOemNetworkPreferences(preference);
-        updateDefaultNetworksForOemNetworkPreference(nris);
+        replaceDefaultNetworkRequestsForPreference(nris);
         mOemNetworkPreferences = preference;
         // TODO http://b/176496396 persist data to shared preferences.
 
@@ -9059,7 +9081,7 @@
         }
     }
 
-    private void updateDefaultNetworksForOemNetworkPreference(
+    private void replaceDefaultNetworkRequestsForPreference(
             @NonNull final Set<NetworkRequestInfo> nris) {
         // Pass in a defensive copy as this collection will be updated on remove.
         handleRemoveNetworkRequests(new ArraySet<>(mDefaultNetworkRequests));
@@ -9145,6 +9167,14 @@
         return callbackRequestsToRegister;
     }
 
+    private static void setNetworkRequestUids(@NonNull final List<NetworkRequest> requests,
+            @NonNull final Set<UidRange> uids) {
+        final Set<UidRange> ranges = new ArraySet<>(uids);
+        for (final NetworkRequest req : requests) {
+            req.networkCapabilities.setUids(ranges);
+        }
+    }
+
     /**
      * Class used to generate {@link NetworkRequestInfo} based off of {@link OemNetworkPreferences}.
      */
@@ -9221,7 +9251,11 @@
                             + " called with invalid preference of " + preference);
             }
 
-            setOemNetworkRequestUids(requests, uids);
+            final ArraySet ranges = new ArraySet<Integer>();
+            for (final int uid : uids) {
+                ranges.add(new UidRange(uid, uid));
+            }
+            setNetworkRequestUids(requests, ranges);
             return new NetworkRequestInfo(requests);
         }
 
@@ -9254,16 +9288,5 @@
             netCap.setRequestorUidAndPackageName(Process.myUid(), mContext.getPackageName());
             return netCap;
         }
-
-        private void setOemNetworkRequestUids(@NonNull final List<NetworkRequest> requests,
-                @NonNull final Set<Integer> uids) {
-            final Set<UidRange> ranges = new ArraySet<>();
-            for (final int uid : uids) {
-                ranges.add(new UidRange(uid, uid));
-            }
-            for (final NetworkRequest req : requests) {
-                req.networkCapabilities.setUids(ranges);
-            }
-        }
     }
 }
diff --git a/services/core/java/com/android/server/IntentResolver.java b/services/core/java/com/android/server/IntentResolver.java
index 2906cee..9067028 100644
--- a/services/core/java/com/android/server/IntentResolver.java
+++ b/services/core/java/com/android/server/IntentResolver.java
@@ -839,23 +839,34 @@
         }
     };
 
+    // Helper method to copy some of the maps.
+    private static <E> void copyInto(ArrayMap<String, E[]> l, ArrayMap<String, E[]> r) {
+        final int end = r.size();
+        l.ensureCapacity(end);
+        for (int i = 0; i < end; i++) {
+            final E[] val = r.valueAt(i);
+            final String key = r.keyAt(i);
+            l.put(key, Arrays.copyOf(val, val.length));
+        }
+    }
+
     // Make <this> a copy of <orig>.  The presumption is that <this> is empty but all
     // arrays are cleared out explicitly, just to be sure.
     protected void copyFrom(IntentResolver orig) {
         mFilters.clear();
         mFilters.addAll(orig.mFilters);
         mTypeToFilter.clear();
-        mTypeToFilter.putAll(orig.mTypeToFilter);
+        copyInto(mTypeToFilter, orig.mTypeToFilter);
         mBaseTypeToFilter.clear();
-        mBaseTypeToFilter.putAll(orig.mBaseTypeToFilter);
+        copyInto(mBaseTypeToFilter, orig.mBaseTypeToFilter);
         mWildTypeToFilter.clear();
-        mWildTypeToFilter.putAll(orig.mWildTypeToFilter);
+        copyInto(mWildTypeToFilter, orig.mWildTypeToFilter);
         mSchemeToFilter.clear();
-        mSchemeToFilter.putAll(orig.mSchemeToFilter);
+        copyInto(mSchemeToFilter, orig.mSchemeToFilter);
         mActionToFilter.clear();
-        mActionToFilter.putAll(orig.mActionToFilter);
+        copyInto(mActionToFilter, orig.mActionToFilter);
         mTypedActionToFilter.clear();
-        mTypedActionToFilter.putAll(orig.mTypedActionToFilter);
+        copyInto(mTypedActionToFilter, orig.mTypedActionToFilter);
     }
 
     /**
diff --git a/services/core/java/com/android/server/TelephonyRegistry.java b/services/core/java/com/android/server/TelephonyRegistry.java
index 5a5f1a3..978bd64 100644
--- a/services/core/java/com/android/server/TelephonyRegistry.java
+++ b/services/core/java/com/android/server/TelephonyRegistry.java
@@ -72,6 +72,7 @@
 import android.telephony.SignalStrength;
 import android.telephony.SubscriptionInfo;
 import android.telephony.SubscriptionManager;
+import android.telephony.TelephonyCallback;
 import android.telephony.TelephonyDisplayInfo;
 import android.telephony.TelephonyManager;
 import android.telephony.data.ApnSetting;
@@ -153,7 +154,7 @@
 
         int phoneId = SubscriptionManager.INVALID_SIM_SLOT_INDEX;
 
-        boolean matchPhoneStateListenerEvent(int event) {
+        boolean matchTelephonyCallbackEvent(int event) {
             return (callback != null) && (this.eventList.contains(event));
         }
 
@@ -198,8 +199,8 @@
         public int getRegistrationLimit() {
             return Binder.withCleanCallingIdentity(() ->
                     DeviceConfig.getInt(DeviceConfig.NAMESPACE_TELEPHONY,
-                            PhoneStateListener.FLAG_PER_PID_REGISTRATION_LIMIT,
-                            PhoneStateListener.DEFAULT_PER_PID_REGISTRATION_LIMIT));
+                            TelephonyCallback.FLAG_PER_PID_REGISTRATION_LIMIT,
+                            TelephonyCallback.DEFAULT_PER_PID_REGISTRATION_LIMIT));
         }
 
         /**
@@ -210,7 +211,7 @@
          */
         public boolean isRegistrationLimitEnabledInPlatformCompat(int uid) {
             return Binder.withCleanCallingIdentity(() -> CompatChanges.isChangeEnabled(
-                    PhoneStateListener.PHONE_STATE_LISTENER_LIMIT_CHANGE_ID, uid));
+                    TelephonyCallback.PHONE_STATE_LISTENER_LIMIT_CHANGE_ID, uid));
         }
     }
 
@@ -332,37 +333,37 @@
     static {
         REQUIRE_PRECISE_PHONE_STATE_PERMISSION = new HashSet<Integer>();
         REQUIRE_PRECISE_PHONE_STATE_PERMISSION.add(
-                PhoneStateListener.EVENT_PRECISE_DATA_CONNECTION_STATE_CHANGED);
+                TelephonyCallback.EVENT_PRECISE_DATA_CONNECTION_STATE_CHANGED);
         REQUIRE_PRECISE_PHONE_STATE_PERMISSION.add(
-                PhoneStateListener.EVENT_DATA_CONNECTION_REAL_TIME_INFO_CHANGED);
+                TelephonyCallback.EVENT_DATA_CONNECTION_REAL_TIME_INFO_CHANGED);
         REQUIRE_PRECISE_PHONE_STATE_PERMISSION.add(
-                PhoneStateListener.EVENT_PRECISE_CALL_STATE_CHANGED);
+                TelephonyCallback.EVENT_PRECISE_CALL_STATE_CHANGED);
         REQUIRE_PRECISE_PHONE_STATE_PERMISSION.add(
-                PhoneStateListener.EVENT_CALL_DISCONNECT_CAUSE_CHANGED);
+                TelephonyCallback.EVENT_CALL_DISCONNECT_CAUSE_CHANGED);
         REQUIRE_PRECISE_PHONE_STATE_PERMISSION.add(
-                PhoneStateListener.EVENT_CALL_ATTRIBUTES_CHANGED);
+                TelephonyCallback.EVENT_CALL_ATTRIBUTES_CHANGED);
         REQUIRE_PRECISE_PHONE_STATE_PERMISSION.add(
-                PhoneStateListener.EVENT_IMS_CALL_DISCONNECT_CAUSE_CHANGED);
-        REQUIRE_PRECISE_PHONE_STATE_PERMISSION.add(PhoneStateListener.EVENT_REGISTRATION_FAILURE);
-        REQUIRE_PRECISE_PHONE_STATE_PERMISSION.add(PhoneStateListener.EVENT_BARRING_INFO_CHANGED);
+                TelephonyCallback.EVENT_IMS_CALL_DISCONNECT_CAUSE_CHANGED);
+        REQUIRE_PRECISE_PHONE_STATE_PERMISSION.add(TelephonyCallback.EVENT_REGISTRATION_FAILURE);
+        REQUIRE_PRECISE_PHONE_STATE_PERMISSION.add(TelephonyCallback.EVENT_BARRING_INFO_CHANGED);
         REQUIRE_PRECISE_PHONE_STATE_PERMISSION.add(
-                PhoneStateListener.EVENT_PHYSICAL_CHANNEL_CONFIG_CHANGED);
+                TelephonyCallback.EVENT_PHYSICAL_CHANNEL_CONFIG_CHANGED);
         REQUIRE_PRECISE_PHONE_STATE_PERMISSION.add(
-                PhoneStateListener.EVENT_DATA_ENABLED_CHANGED);
+                TelephonyCallback.EVENT_DATA_ENABLED_CHANGED);
     }
 
     private boolean isLocationPermissionRequired(Set<Integer> events) {
-        return events.contains(PhoneStateListener.EVENT_CELL_LOCATION_CHANGED)
-                || events.contains(PhoneStateListener.EVENT_CELL_INFO_CHANGED)
-                || events.contains(PhoneStateListener.EVENT_REGISTRATION_FAILURE)
-                || events.contains(PhoneStateListener.EVENT_BARRING_INFO_CHANGED);
+        return events.contains(TelephonyCallback.EVENT_CELL_LOCATION_CHANGED)
+                || events.contains(TelephonyCallback.EVENT_CELL_INFO_CHANGED)
+                || events.contains(TelephonyCallback.EVENT_REGISTRATION_FAILURE)
+                || events.contains(TelephonyCallback.EVENT_BARRING_INFO_CHANGED);
     }
 
     private boolean isPhoneStatePermissionRequired(Set<Integer> events) {
-        return events.contains(PhoneStateListener.EVENT_CALL_FORWARDING_INDICATOR_CHANGED)
-                || events.contains(PhoneStateListener.EVENT_MESSAGE_WAITING_INDICATOR_CHANGED)
-                || events.contains(PhoneStateListener.EVENT_EMERGENCY_NUMBER_LIST_CHANGED)
-                || events.contains(PhoneStateListener.EVENT_ACTIVE_DATA_SUBSCRIPTION_ID_CHANGED);
+        return events.contains(TelephonyCallback.EVENT_CALL_FORWARDING_INDICATOR_CHANGED)
+                || events.contains(TelephonyCallback.EVENT_MESSAGE_WAITING_INDICATOR_CHANGED)
+                || events.contains(TelephonyCallback.EVENT_EMERGENCY_NUMBER_LIST_CHANGED)
+                || events.contains(TelephonyCallback.EVENT_ACTIVE_DATA_SUBSCRIPTION_ID_CHANGED);
     }
 
     private boolean isPrecisePhoneStatePermissionRequired(Set<Integer> events) {
@@ -375,14 +376,14 @@
     }
 
     private boolean isActiveEmergencySessionPermissionRequired(Set<Integer> events) {
-        return events.contains(PhoneStateListener.EVENT_OUTGOING_EMERGENCY_CALL)
-                || events.contains(PhoneStateListener.EVENT_OUTGOING_EMERGENCY_SMS);
+        return events.contains(TelephonyCallback.EVENT_OUTGOING_EMERGENCY_CALL)
+                || events.contains(TelephonyCallback.EVENT_OUTGOING_EMERGENCY_SMS);
     }
 
     private boolean isPrivilegedPhoneStatePermissionRequired(Set<Integer> events) {
-        return events.contains(PhoneStateListener.EVENT_SRVCC_STATE_CHANGED)
-                || events.contains(PhoneStateListener.EVENT_VOICE_ACTIVATION_STATE_CHANGED)
-                || events.contains(PhoneStateListener.EVENT_RADIO_POWER_STATE_CHANGED);
+        return events.contains(TelephonyCallback.EVENT_SRVCC_STATE_CHANGED)
+                || events.contains(TelephonyCallback.EVENT_VOICE_ACTIVATION_STATE_CHANGED)
+                || events.contains(TelephonyCallback.EVENT_RADIO_POWER_STATE_CHANGED);
     }
 
     private static final int MSG_USER_SWITCHED = 1;
@@ -903,7 +904,7 @@
                 log("listen:  Register r=" + r + " r.subId=" + r.subId + " phoneId=" + phoneId);
             }
             if (notifyNow && validatePhoneId(phoneId)) {
-                if (events.contains(PhoneStateListener.EVENT_SERVICE_STATE_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_SERVICE_STATE_CHANGED)){
                     try {
                         if (VDBG) log("listen: call onSSC state=" + mServiceState[phoneId]);
                         ServiceState rawSs = new ServiceState(mServiceState[phoneId]);
@@ -920,7 +921,7 @@
                         remove(r.binder);
                     }
                 }
-                if (events.contains(PhoneStateListener.EVENT_SIGNAL_STRENGTH_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_SIGNAL_STRENGTH_CHANGED)) {
                     try {
                         if (mSignalStrength[phoneId] != null) {
                             int gsmSignalStrength = mSignalStrength[phoneId]
@@ -933,7 +934,7 @@
                     }
                 }
                 if (events.contains(
-                        PhoneStateListener.EVENT_MESSAGE_WAITING_INDICATOR_CHANGED)) {
+                        TelephonyCallback.EVENT_MESSAGE_WAITING_INDICATOR_CHANGED)) {
                     try {
                         r.callback.onMessageWaitingIndicatorChanged(
                                 mMessageWaiting[phoneId]);
@@ -942,7 +943,7 @@
                     }
                 }
                 if (events.contains(
-                        PhoneStateListener.EVENT_CALL_FORWARDING_INDICATOR_CHANGED)) {
+                        TelephonyCallback.EVENT_CALL_FORWARDING_INDICATOR_CHANGED)) {
                     try {
                         r.callback.onCallForwardingIndicatorChanged(
                                 mCallForwarding[phoneId]);
@@ -951,7 +952,7 @@
                     }
                 }
                 if (validateEventAndUserLocked(
-                        r, PhoneStateListener.EVENT_CELL_LOCATION_CHANGED)) {
+                        r, TelephonyCallback.EVENT_CELL_LOCATION_CHANGED)) {
                     try {
                         if (DBG_LOC) log("listen: mCellIdentity = " + mCellIdentity[phoneId]);
                         if (checkCoarseLocationAccess(r, Build.VERSION_CODES.BASE)
@@ -963,7 +964,7 @@
                         remove(r.binder);
                     }
                 }
-                if (events.contains(PhoneStateListener.EVENT_CALL_STATE_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_CALL_STATE_CHANGED)) {
                     try {
                         r.callback.onCallStateChanged(mCallState[phoneId],
                                 getCallIncomingNumber(r, phoneId));
@@ -971,7 +972,7 @@
                         remove(r.binder);
                     }
                 }
-                if (events.contains(PhoneStateListener.EVENT_DATA_CONNECTION_STATE_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_DATA_CONNECTION_STATE_CHANGED)) {
                     try {
                         r.callback.onDataConnectionStateChanged(mDataConnectionState[phoneId],
                                 mDataConnectionNetworkType[phoneId]);
@@ -979,14 +980,14 @@
                         remove(r.binder);
                     }
                 }
-                if (events.contains(PhoneStateListener.EVENT_DATA_ACTIVITY_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_DATA_ACTIVITY_CHANGED)) {
                     try {
                         r.callback.onDataActivity(mDataActivity[phoneId]);
                     } catch (RemoteException ex) {
                         remove(r.binder);
                     }
                 }
-                if (events.contains(PhoneStateListener.EVENT_SIGNAL_STRENGTHS_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_SIGNAL_STRENGTHS_CHANGED)) {
                     try {
                         if (mSignalStrength[phoneId] != null) {
                             r.callback.onSignalStrengthsChanged(mSignalStrength[phoneId]);
@@ -996,7 +997,7 @@
                     }
                 }
                 if (events.contains(
-                        PhoneStateListener.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED)) {
+                        TelephonyCallback.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED)) {
                     updateReportSignalStrengthDecision(r.subId);
                     try {
                         if (mSignalStrength[phoneId] != null) {
@@ -1007,7 +1008,7 @@
                     }
                 }
                 if (validateEventAndUserLocked(
-                        r, PhoneStateListener.EVENT_CELL_INFO_CHANGED)) {
+                        r, TelephonyCallback.EVENT_CELL_INFO_CHANGED)) {
                     try {
                         if (DBG_LOC) log("listen: mCellInfo[" + phoneId + "] = "
                                 + mCellInfo.get(phoneId));
@@ -1019,14 +1020,14 @@
                         remove(r.binder);
                     }
                 }
-                if (events.contains(PhoneStateListener.EVENT_PRECISE_CALL_STATE_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_PRECISE_CALL_STATE_CHANGED)) {
                     try {
                         r.callback.onPreciseCallStateChanged(mPreciseCallState[phoneId]);
                     } catch (RemoteException ex) {
                         remove(r.binder);
                     }
                 }
-                if (events.contains(PhoneStateListener.EVENT_CALL_DISCONNECT_CAUSE_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_CALL_DISCONNECT_CAUSE_CHANGED)) {
                     try {
                         r.callback.onCallDisconnectCauseChanged(mCallDisconnectCause[phoneId],
                                 mCallPreciseDisconnectCause[phoneId]);
@@ -1034,7 +1035,7 @@
                         remove(r.binder);
                     }
                 }
-                if (events.contains(PhoneStateListener.EVENT_IMS_CALL_DISCONNECT_CAUSE_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_IMS_CALL_DISCONNECT_CAUSE_CHANGED)) {
                     try {
                         r.callback.onImsCallDisconnectCauseChanged(mImsReasonInfo.get(phoneId));
                     } catch (RemoteException ex) {
@@ -1042,7 +1043,7 @@
                     }
                 }
                 if (events.contains(
-                        PhoneStateListener.EVENT_PRECISE_DATA_CONNECTION_STATE_CHANGED)) {
+                        TelephonyCallback.EVENT_PRECISE_DATA_CONNECTION_STATE_CHANGED)) {
                     try {
                         for (PreciseDataConnectionState pdcs
                                 : mPreciseDataConnectionStates.get(phoneId).values()) {
@@ -1052,14 +1053,14 @@
                         remove(r.binder);
                     }
                 }
-                if (events.contains(PhoneStateListener.EVENT_CARRIER_NETWORK_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_CARRIER_NETWORK_CHANGED)) {
                     try {
                         r.callback.onCarrierNetworkChange(mCarrierNetworkChangeState);
                     } catch (RemoteException ex) {
                         remove(r.binder);
                     }
                 }
-                if (events.contains(PhoneStateListener.EVENT_VOICE_ACTIVATION_STATE_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_VOICE_ACTIVATION_STATE_CHANGED)) {
                     try {
                         r.callback.onVoiceActivationStateChanged(
                                 mVoiceActivationState[phoneId]);
@@ -1067,21 +1068,21 @@
                         remove(r.binder);
                     }
                 }
-                if (events.contains(PhoneStateListener.EVENT_DATA_ACTIVATION_STATE_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_DATA_ACTIVATION_STATE_CHANGED)) {
                     try {
                         r.callback.onDataActivationStateChanged(mDataActivationState[phoneId]);
                     } catch (RemoteException ex) {
                         remove(r.binder);
                     }
                 }
-                if (events.contains(PhoneStateListener.EVENT_USER_MOBILE_DATA_STATE_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_USER_MOBILE_DATA_STATE_CHANGED)) {
                     try {
                         r.callback.onUserMobileDataStateChanged(mUserMobileDataState[phoneId]);
                     } catch (RemoteException ex) {
                         remove(r.binder);
                     }
                 }
-                if (events.contains(PhoneStateListener.EVENT_DISPLAY_INFO_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_DISPLAY_INFO_CHANGED)) {
                     try {
                         if (mTelephonyDisplayInfos[phoneId] != null) {
                             r.callback.onDisplayInfoChanged(mTelephonyDisplayInfos[phoneId]);
@@ -1090,14 +1091,14 @@
                         remove(r.binder);
                     }
                 }
-                if (events.contains(PhoneStateListener.EVENT_EMERGENCY_NUMBER_LIST_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_EMERGENCY_NUMBER_LIST_CHANGED)) {
                     try {
                         r.callback.onEmergencyNumberListChanged(mEmergencyNumberList);
                     } catch (RemoteException ex) {
                         remove(r.binder);
                     }
                 }
-                if (events.contains(PhoneStateListener.EVENT_PHONE_CAPABILITY_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_PHONE_CAPABILITY_CHANGED)) {
                     try {
                         r.callback.onPhoneCapabilityChanged(mPhoneCapability);
                     } catch (RemoteException ex) {
@@ -1105,35 +1106,35 @@
                     }
                 }
                 if (events.contains(
-                        PhoneStateListener.EVENT_ACTIVE_DATA_SUBSCRIPTION_ID_CHANGED)) {
+                        TelephonyCallback.EVENT_ACTIVE_DATA_SUBSCRIPTION_ID_CHANGED)) {
                     try {
                         r.callback.onActiveDataSubIdChanged(mActiveDataSubId);
                     } catch (RemoteException ex) {
                         remove(r.binder);
                     }
                 }
-                if (events.contains(PhoneStateListener.EVENT_RADIO_POWER_STATE_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_RADIO_POWER_STATE_CHANGED)) {
                     try {
                         r.callback.onRadioPowerStateChanged(mRadioPowerState);
                     } catch (RemoteException ex) {
                         remove(r.binder);
                     }
                 }
-                if (events.contains(PhoneStateListener.EVENT_SRVCC_STATE_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_SRVCC_STATE_CHANGED)) {
                     try {
                         r.callback.onSrvccStateChanged(mSrvccState[phoneId]);
                     } catch (RemoteException ex) {
                         remove(r.binder);
                     }
                 }
-                if (events.contains(PhoneStateListener.EVENT_CALL_ATTRIBUTES_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_CALL_ATTRIBUTES_CHANGED)) {
                     try {
                         r.callback.onCallAttributesChanged(mCallAttributes[phoneId]);
                     } catch (RemoteException ex) {
                         remove(r.binder);
                     }
                 }
-                if (events.contains(PhoneStateListener.EVENT_BARRING_INFO_CHANGED)) {
+                if (events.contains(TelephonyCallback.EVENT_BARRING_INFO_CHANGED)) {
                     BarringInfo barringInfo = mBarringInfo.get(phoneId);
                     BarringInfo biNoLocation = barringInfo != null
                             ? barringInfo.createLocationInfoSanitizedCopy() : null;
@@ -1147,7 +1148,7 @@
                     }
                 }
                 if (events.contains(
-                        PhoneStateListener.EVENT_PHYSICAL_CHANNEL_CONFIG_CHANGED)) {
+                        TelephonyCallback.EVENT_PHYSICAL_CHANNEL_CONFIG_CHANGED)) {
                     try {
                         r.callback.onPhysicalChannelConfigChanged(
                                 mPhysicalChannelConfigs);
@@ -1156,7 +1157,7 @@
                     }
                 }
                 if (events.contains(
-                        PhoneStateListener.EVENT_DATA_ENABLED_CHANGED)) {
+                        TelephonyCallback.EVENT_DATA_ENABLED_CHANGED)) {
                     try {
                         r.callback.onDataEnabledChanged(
                                 mIsDataEnabled[phoneId], mDataEnabledReason[phoneId]);
@@ -1165,7 +1166,7 @@
                     }
                 }
                 if (events.contains(
-                        PhoneStateListener.EVENT_ALLOWED_NETWORK_TYPE_LIST_CHANGED)) {
+                        TelephonyCallback.EVENT_ALLOWED_NETWORK_TYPE_LIST_CHANGED)) {
                     try {
                         r.callback.onAllowedNetworkTypesChanged(mAllowedNetworkTypesList);
                     } catch (RemoteException ex) {
@@ -1183,8 +1184,8 @@
             for (Record r : mRecords) {
                 // If any of the system clients wants to always listen to signal strength,
                 // we need to set it on.
-                if (r.matchPhoneStateListenerEvent(
-                        PhoneStateListener.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED)) {
+                if (r.matchTelephonyCallbackEvent(
+                        TelephonyCallback.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED)) {
                     telephonyManager.createForSubscriptionId(subscriptionId)
                             .setAlwaysReportSignalStrength(true);
                     return;
@@ -1233,7 +1234,7 @@
                     throw new IllegalStateException(errorMsg);
                 }
             } else if (doesLimitApply && numRecordsForPid
-                    >= PhoneStateListener.DEFAULT_PER_PID_REGISTRATION_LIMIT / 2) {
+                    >= TelephonyCallback.DEFAULT_PER_PID_REGISTRATION_LIMIT / 2) {
                 // Log the warning independently of the dynamically set limit -- apps shouldn't be
                 // doing this regardless of whether we're throwing them an exception for it.
                 Rlog.w(TAG, "Pid " + callingPid + " has exceeded half the number of permissible"
@@ -1284,8 +1285,8 @@
                     // Every time a client that is registrating to always receive the signal
                     // strength is removed from registry records, we need to check if
                     // the signal strength decision needs to update on its slot.
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED)) {
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED)) {
                         updateReportSignalStrengthDecision(r.subId);
                     }
                     return;
@@ -1305,7 +1306,7 @@
 
         synchronized (mRecords) {
             for (Record r : mRecords) {
-                if (r.matchPhoneStateListenerEvent(PhoneStateListener.EVENT_CALL_STATE_CHANGED)
+                if (r.matchTelephonyCallbackEvent(TelephonyCallback.EVENT_CALL_STATE_CHANGED)
                         && (r.subId == SubscriptionManager.DEFAULT_SUBSCRIPTION_ID)) {
                     try {
                         // Ensure the listener has read call log permission; if they do not return
@@ -1340,7 +1341,7 @@
                 mCallState[phoneId] = state;
                 mCallIncomingNumber[phoneId] = incomingNumber;
                 for (Record r : mRecords) {
-                    if (r.matchPhoneStateListenerEvent(PhoneStateListener.EVENT_CALL_STATE_CHANGED)
+                    if (r.matchTelephonyCallbackEvent(TelephonyCallback.EVENT_CALL_STATE_CHANGED)
                             && (r.subId == subId)
                             && (r.subId != SubscriptionManager.DEFAULT_SUBSCRIPTION_ID)) {
                         try {
@@ -1382,8 +1383,8 @@
                         log("notifyServiceStateForSubscriber: r=" + r + " subId=" + subId
                                 + " phoneId=" + phoneId + " state=" + state);
                     }
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_SERVICE_STATE_CHANGED)
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_SERVICE_STATE_CHANGED)
                             && idMatch(r.subId, subId, phoneId)) {
 
                         try {
@@ -1444,8 +1445,8 @@
                     }
                     try {
                         if ((activationType == SIM_ACTIVATION_TYPE_VOICE)
-                                && r.matchPhoneStateListenerEvent(
-                                        PhoneStateListener.EVENT_VOICE_ACTIVATION_STATE_CHANGED)
+                                && r.matchTelephonyCallbackEvent(
+                                        TelephonyCallback.EVENT_VOICE_ACTIVATION_STATE_CHANGED)
                                 && idMatch(r.subId, subId, phoneId)) {
                             if (DBG) {
                                 log("notifyVoiceActivationStateForPhoneId: callback.onVASC r=" + r
@@ -1455,8 +1456,8 @@
                             r.callback.onVoiceActivationStateChanged(activationState);
                         }
                         if ((activationType == SIM_ACTIVATION_TYPE_DATA)
-                                && r.matchPhoneStateListenerEvent(
-                                        PhoneStateListener.EVENT_DATA_ACTIVATION_STATE_CHANGED)
+                                && r.matchTelephonyCallbackEvent(
+                                        TelephonyCallback.EVENT_DATA_ACTIVATION_STATE_CHANGED)
                                 && idMatch(r.subId, subId, phoneId)) {
                             if (DBG) {
                                 log("notifyDataActivationStateForPhoneId: callback.onDASC r=" + r
@@ -1495,11 +1496,10 @@
                         log("notifySignalStrengthForPhoneId: r=" + r + " subId=" + subId
                                 + " phoneId=" + phoneId + " ss=" + signalStrength);
                     }
-                    if ((r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_SIGNAL_STRENGTHS_CHANGED)
-                            || r.matchPhoneStateListenerEvent(
-                                    PhoneStateListener.
-                                            EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED))
+                    if ((r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_SIGNAL_STRENGTHS_CHANGED)
+                            || r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED))
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             if (DBG) {
@@ -1512,8 +1512,8 @@
                             mRemoveList.add(r.binder);
                         }
                     }
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_SIGNAL_STRENGTH_CHANGED)
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_SIGNAL_STRENGTH_CHANGED)
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             int gsmSignalStrength = signalStrength.getGsmSignalStrength();
@@ -1559,8 +1559,8 @@
                     log("notifyCarrierNetworkChange: active=" + active + "subId: " + subId);
                 }
                 for (Record r : mRecords) {
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_CARRIER_NETWORK_CHANGED)
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_CARRIER_NETWORK_CHANGED)
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             r.callback.onCarrierNetworkChange(active);
@@ -1592,7 +1592,7 @@
                 mCellInfo.set(phoneId, cellInfo);
                 for (Record r : mRecords) {
                     if (validateEventAndUserLocked(
-                            r, PhoneStateListener.EVENT_CELL_INFO_CHANGED)
+                            r, TelephonyCallback.EVENT_CELL_INFO_CHANGED)
                             && idMatch(r.subId, subId, phoneId)
                             && (checkCoarseLocationAccess(r, Build.VERSION_CODES.BASE)
                                     && checkFineLocationAccess(r, Build.VERSION_CODES.Q))) {
@@ -1625,8 +1625,8 @@
             if (validatePhoneId(phoneId)) {
                 mMessageWaiting[phoneId] = mwi;
                 for (Record r : mRecords) {
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_MESSAGE_WAITING_INDICATOR_CHANGED)
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_MESSAGE_WAITING_INDICATOR_CHANGED)
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             r.callback.onMessageWaitingIndicatorChanged(mwi);
@@ -1652,8 +1652,8 @@
             if (validatePhoneId(phoneId)) {
                 mUserMobileDataState[phoneId] = state;
                 for (Record r : mRecords) {
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_USER_MOBILE_DATA_STATE_CHANGED)
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_USER_MOBILE_DATA_STATE_CHANGED)
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             r.callback.onUserMobileDataStateChanged(state);
@@ -1691,8 +1691,8 @@
             if (validatePhoneId(phoneId)) {
                 mTelephonyDisplayInfos[phoneId] = telephonyDisplayInfo;
                 for (Record r : mRecords) {
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_DISPLAY_INFO_CHANGED)
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_DISPLAY_INFO_CHANGED)
                             && idMatchWithoutDefaultPhoneCheck(r.subId, subId)) {
                         try {
                             r.callback.onDisplayInfoChanged(telephonyDisplayInfo);
@@ -1723,8 +1723,8 @@
             if (validatePhoneId(phoneId)) {
                 mCallForwarding[phoneId] = cfi;
                 for (Record r : mRecords) {
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_CALL_FORWARDING_INDICATOR_CHANGED)
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_CALL_FORWARDING_INDICATOR_CHANGED)
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             r.callback.onCallForwardingIndicatorChanged(cfi);
@@ -1752,8 +1752,8 @@
                 mDataActivity[phoneId] = state;
                 for (Record r : mRecords) {
                     // Notify by correct subId.
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_DATA_ACTIVITY_CHANGED)
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_DATA_ACTIVITY_CHANGED)
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             r.callback.onDataActivity(state);
@@ -1800,8 +1800,8 @@
                     log(str);
                     mLocalLog.log(str);
                     for (Record r : mRecords) {
-                        if (r.matchPhoneStateListenerEvent(
-                                PhoneStateListener.EVENT_DATA_CONNECTION_STATE_CHANGED)
+                        if (r.matchTelephonyCallbackEvent(
+                                TelephonyCallback.EVENT_DATA_CONNECTION_STATE_CHANGED)
                                 && idMatch(r.subId, subId, phoneId)) {
                             try {
                                 if (DBG) {
@@ -1825,8 +1825,8 @@
                         .remove(key);
                 if (!Objects.equals(oldState, preciseState)) {
                     for (Record r : mRecords) {
-                        if (r.matchPhoneStateListenerEvent(
-                                PhoneStateListener.EVENT_PRECISE_DATA_CONNECTION_STATE_CHANGED)
+                        if (r.matchTelephonyCallbackEvent(
+                                TelephonyCallback.EVENT_PRECISE_DATA_CONNECTION_STATE_CHANGED)
                                 && idMatch(r.subId, subId, phoneId)) {
                             try {
                                 r.callback.onPreciseDataConnectionStateChanged(preciseState);
@@ -1872,7 +1872,7 @@
                 mCellIdentity[phoneId] = cellIdentity;
                 for (Record r : mRecords) {
                     if (validateEventAndUserLocked(
-                            r, PhoneStateListener.EVENT_CELL_LOCATION_CHANGED)
+                            r, TelephonyCallback.EVENT_CELL_LOCATION_CHANGED)
                             && idMatch(r.subId, subId, phoneId)
                             && (checkCoarseLocationAccess(r, Build.VERSION_CODES.BASE)
                                     && checkFineLocationAccess(r, Build.VERSION_CODES.Q))) {
@@ -1925,8 +1925,8 @@
                 }
 
                 for (Record r : mRecords) {
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_PRECISE_CALL_STATE_CHANGED)
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_PRECISE_CALL_STATE_CHANGED)
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             r.callback.onPreciseCallStateChanged(mPreciseCallState[phoneId]);
@@ -1934,8 +1934,8 @@
                             mRemoveList.add(r.binder);
                         }
                     }
-                    if (notifyCallAttributes && r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_CALL_ATTRIBUTES_CHANGED)
+                    if (notifyCallAttributes && r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_CALL_ATTRIBUTES_CHANGED)
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             r.callback.onCallAttributesChanged(mCallAttributes[phoneId]);
@@ -1959,8 +1959,9 @@
                 mCallDisconnectCause[phoneId] = disconnectCause;
                 mCallPreciseDisconnectCause[phoneId] = preciseDisconnectCause;
                 for (Record r : mRecords) {
-                    if (r.matchPhoneStateListenerEvent(PhoneStateListener
-                            .LISTEN_CALL_DISCONNECT_CAUSES) && idMatch(r.subId, subId, phoneId)) {
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_CALL_DISCONNECT_CAUSE_CHANGED)
+                            && idMatch(r.subId, subId, phoneId)) {
                         try {
                             r.callback.onCallDisconnectCauseChanged(mCallDisconnectCause[phoneId],
                                     mCallPreciseDisconnectCause[phoneId]);
@@ -1983,8 +1984,8 @@
             if (validatePhoneId(phoneId)) {
                 mImsReasonInfo.set(phoneId, imsReasonInfo);
                 for (Record r : mRecords) {
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_IMS_CALL_DISCONNECT_CAUSE_CHANGED)
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_IMS_CALL_DISCONNECT_CAUSE_CHANGED)
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             if (DBG_LOC) {
@@ -2015,8 +2016,8 @@
             if (validatePhoneId(phoneId)) {
                 mSrvccState[phoneId] = state;
                 for (Record r : mRecords) {
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_SRVCC_STATE_CHANGED)
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_SRVCC_STATE_CHANGED)
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             if (DBG_LOC) {
@@ -2044,8 +2045,8 @@
                     if (VDBG) {
                         log("notifyOemHookRawEventForSubscriber:  r=" + r + " subId=" + subId);
                     }
-                    if ((r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_OEM_HOOK_RAW))
+                    if ((r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_OEM_HOOK_RAW))
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             r.callback.onOemHookRawEvent(rawData);
@@ -2072,8 +2073,8 @@
             mPhoneCapability = capability;
 
             for (Record r : mRecords) {
-                if (r.matchPhoneStateListenerEvent(
-                        PhoneStateListener.EVENT_PHONE_CAPABILITY_CHANGED)) {
+                if (r.matchTelephonyCallbackEvent(
+                        TelephonyCallback.EVENT_PHONE_CAPABILITY_CHANGED)) {
                     try {
                         r.callback.onPhoneCapabilityChanged(capability);
                     } catch (RemoteException ex) {
@@ -2097,8 +2098,8 @@
         mActiveDataSubId = activeDataSubId;
         synchronized (mRecords) {
             for (Record r : mRecords) {
-                if (r.matchPhoneStateListenerEvent(
-                        PhoneStateListener.EVENT_ACTIVE_DATA_SUBSCRIPTION_ID_CHANGED)) {
+                if (r.matchTelephonyCallbackEvent(
+                        TelephonyCallback.EVENT_ACTIVE_DATA_SUBSCRIPTION_ID_CHANGED)) {
                     try {
                         r.callback.onActiveDataSubIdChanged(activeDataSubId);
                     } catch (RemoteException ex) {
@@ -2124,8 +2125,8 @@
                 mRadioPowerState = state;
 
                 for (Record r : mRecords) {
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_RADIO_POWER_STATE_CHANGED)
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_RADIO_POWER_STATE_CHANGED)
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             r.callback.onRadioPowerStateChanged(state);
@@ -2153,8 +2154,8 @@
                 mEmergencyNumberList = tm.getEmergencyNumberList();
 
                 for (Record r : mRecords) {
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_EMERGENCY_NUMBER_LIST_CHANGED)
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_EMERGENCY_NUMBER_LIST_CHANGED)
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             r.callback.onEmergencyNumberListChanged(mEmergencyNumberList);
@@ -2185,8 +2186,8 @@
             }
             for (Record r : mRecords) {
                 // Send to all listeners regardless of subscription
-                if (r.matchPhoneStateListenerEvent(
-                        PhoneStateListener.EVENT_OUTGOING_EMERGENCY_CALL)) {
+                if (r.matchTelephonyCallbackEvent(
+                        TelephonyCallback.EVENT_OUTGOING_EMERGENCY_CALL)) {
                     try {
                         r.callback.onOutgoingEmergencyCall(emergencyNumber, subId);
                     } catch (RemoteException ex) {
@@ -2204,13 +2205,14 @@
         if (!checkNotifyPermission("notifyOutgoingEmergencySms()")) {
             return;
         }
+
         synchronized (mRecords) {
             if (validatePhoneId(phoneId)) {
                 mOutgoingSmsEmergencyNumber[phoneId] = emergencyNumber;
                 for (Record r : mRecords) {
                     // Send to all listeners regardless of subscription
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_OUTGOING_EMERGENCY_SMS)) {
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_OUTGOING_EMERGENCY_SMS)) {
                         try {
                             r.callback.onOutgoingEmergencySms(emergencyNumber, subId);
                         } catch (RemoteException ex) {
@@ -2239,8 +2241,8 @@
                         callNetworkType, callQuality);
 
                 for (Record r : mRecords) {
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_CALL_ATTRIBUTES_CHANGED)
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_CALL_ATTRIBUTES_CHANGED)
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             r.callback.onCallAttributesChanged(mCallAttributes[phoneId]);
@@ -2270,8 +2272,8 @@
         synchronized (mRecords) {
             if (validatePhoneId(phoneId)) {
                 for (Record r : mRecords) {
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_REGISTRATION_FAILURE)
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_REGISTRATION_FAILURE)
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             r.callback.onRegistrationFailed(
@@ -2313,8 +2315,8 @@
                 BarringInfo biNoLocation = barringInfo.createLocationInfoSanitizedCopy();
                 if (VDBG) log("listen: call onBarringInfoChanged=" + barringInfo);
                 for (Record r : mRecords) {
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_BARRING_INFO_CHANGED)
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_BARRING_INFO_CHANGED)
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             if (DBG_LOC) {
@@ -2356,8 +2358,8 @@
             if (validatePhoneId(phoneId)) {
                 mPhysicalChannelConfigs.set(phoneId, configs.get(phoneId));
                 for (Record r : mRecords) {
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_PHYSICAL_CHANNEL_CONFIG_CHANGED)
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_PHYSICAL_CHANNEL_CONFIG_CHANGED)
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             if (DBG_LOC) {
@@ -2386,7 +2388,7 @@
      *                {@link TelephonyManager}.
      */
     public void notifyDataEnabled(int phoneId, int subId, boolean enabled,
-                                  @TelephonyManager.DataEnabledReason int reason) {
+            @TelephonyManager.DataEnabledReason int reason) {
         if (!checkNotifyPermission("notifyDataEnabled()")) {
             return;
         }
@@ -2401,8 +2403,8 @@
                 mIsDataEnabled[phoneId] = enabled;
                 mDataEnabledReason[phoneId] = reason;
                 for (Record r : mRecords) {
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_DATA_ENABLED_CHANGED)
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_DATA_ENABLED_CHANGED)
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             r.callback.onDataEnabledChanged(enabled, reason);
@@ -2435,8 +2437,8 @@
                 mAllowedNetworkTypesList = allowedNetworkTypesList;
 
                 for (Record r : mRecords) {
-                    if (r.matchPhoneStateListenerEvent(
-                            PhoneStateListener.EVENT_ALLOWED_NETWORK_TYPE_LIST_CHANGED)
+                    if (r.matchTelephonyCallbackEvent(
+                            TelephonyCallback.EVENT_ALLOWED_NETWORK_TYPE_LIST_CHANGED)
                             && idMatch(r.subId, subId, phoneId)) {
                         try {
                             if (VDBG) {
@@ -2817,7 +2819,7 @@
                     android.Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION, null);
         }
 
-        if ((events.contains(PhoneStateListener.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED))) {
+        if ((events.contains(TelephonyCallback.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED))) {
             mContext.enforceCallingOrSelfPermission(
                     android.Manifest.permission.LISTEN_ALWAYS_REPORTED_SIGNAL_STRENGTH, null);
         }
@@ -2847,7 +2849,7 @@
         try {
             foregroundUser = ActivityManager.getCurrentUser();
             valid = UserHandle.getUserId(r.callerUid) == foregroundUser
-                    && r.matchPhoneStateListenerEvent(event);
+                    && r.matchTelephonyCallbackEvent(event);
             if (DBG | DBG_LOC) {
                 log("validateEventAndUserLocked: valid=" + valid
                         + " r.callerUid=" + r.callerUid + " foregroundUser=" + foregroundUser
@@ -2972,7 +2974,7 @@
             return;
         }
 
-        if ((events.contains(PhoneStateListener.EVENT_SERVICE_STATE_CHANGED))) {
+        if ((events.contains(TelephonyCallback.EVENT_SERVICE_STATE_CHANGED))) {
             try {
                 if (VDBG) log("checkPossibleMissNotify: onServiceStateChanged state=" +
                         mServiceState[phoneId]);
@@ -2991,9 +2993,9 @@
             }
         }
 
-        if (events.contains(PhoneStateListener.EVENT_SIGNAL_STRENGTHS_CHANGED)
+        if (events.contains(TelephonyCallback.EVENT_SIGNAL_STRENGTHS_CHANGED)
                 || events.contains(
-                PhoneStateListener.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED)) {
+                TelephonyCallback.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED)) {
             try {
                 if (mSignalStrength[phoneId] != null) {
                     SignalStrength signalStrength = mSignalStrength[phoneId];
@@ -3008,7 +3010,7 @@
             }
         }
 
-        if (events.contains(PhoneStateListener.EVENT_SIGNAL_STRENGTH_CHANGED)) {
+        if (events.contains(TelephonyCallback.EVENT_SIGNAL_STRENGTH_CHANGED)) {
             try {
                 if (mSignalStrength[phoneId] != null) {
                     int gsmSignalStrength = mSignalStrength[phoneId]
@@ -3025,7 +3027,7 @@
             }
         }
 
-        if (validateEventAndUserLocked(r, PhoneStateListener.EVENT_CELL_INFO_CHANGED)) {
+        if (validateEventAndUserLocked(r, TelephonyCallback.EVENT_CELL_INFO_CHANGED)) {
             try {
                 if (DBG_LOC) {
                     log("checkPossibleMissNotify: onCellInfoChanged[" + phoneId + "] = "
@@ -3040,7 +3042,7 @@
             }
         }
 
-        if (events.contains(PhoneStateListener.EVENT_USER_MOBILE_DATA_STATE_CHANGED)) {
+        if (events.contains(TelephonyCallback.EVENT_USER_MOBILE_DATA_STATE_CHANGED)) {
             try {
                 if (VDBG) {
                     log("checkPossibleMissNotify: onUserMobileDataStateChanged phoneId="
@@ -3052,7 +3054,7 @@
             }
         }
 
-        if (events.contains(PhoneStateListener.EVENT_DISPLAY_INFO_CHANGED)) {
+        if (events.contains(TelephonyCallback.EVENT_DISPLAY_INFO_CHANGED)) {
             try {
                 if (VDBG) {
                     log("checkPossibleMissNotify: onDisplayInfoChanged phoneId="
@@ -3066,7 +3068,7 @@
             }
         }
 
-        if (events.contains(PhoneStateListener.EVENT_MESSAGE_WAITING_INDICATOR_CHANGED)) {
+        if (events.contains(TelephonyCallback.EVENT_MESSAGE_WAITING_INDICATOR_CHANGED)) {
             try {
                 if (VDBG) {
                     log("checkPossibleMissNotify: onMessageWaitingIndicatorChanged phoneId="
@@ -3079,7 +3081,7 @@
             }
         }
 
-        if (events.contains(PhoneStateListener.EVENT_CALL_FORWARDING_INDICATOR_CHANGED)) {
+        if (events.contains(TelephonyCallback.EVENT_CALL_FORWARDING_INDICATOR_CHANGED)) {
             try {
                 if (VDBG) {
                     log("checkPossibleMissNotify: onCallForwardingIndicatorChanged phoneId="
@@ -3092,7 +3094,7 @@
             }
         }
 
-        if (validateEventAndUserLocked(r, PhoneStateListener.EVENT_CELL_LOCATION_CHANGED)) {
+        if (validateEventAndUserLocked(r, TelephonyCallback.EVENT_CELL_LOCATION_CHANGED)) {
             try {
                 if (DBG_LOC) {
                     log("checkPossibleMissNotify: onCellLocationChanged mCellIdentity = "
@@ -3108,7 +3110,7 @@
             }
         }
 
-        if (events.contains(PhoneStateListener.EVENT_DATA_CONNECTION_STATE_CHANGED)) {
+        if (events.contains(TelephonyCallback.EVENT_DATA_CONNECTION_STATE_CHANGED)) {
             try {
                 if (DBG) {
                     log("checkPossibleMissNotify: onDataConnectionStateChanged(mDataConnectionState"
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 1480f7a..3a3f4ac 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -91,6 +91,7 @@
 
 import static com.android.internal.protolog.ProtoLogGroup.WM_DEBUG_CONFIGURATION;
 import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_ALL;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_ALLOWLISTS;
 import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_ANR;
 import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_BACKGROUND_CHECK;
 import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_BACKUP;
@@ -103,7 +104,6 @@
 import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_POWER;
 import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_PROCESSES;
 import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_SERVICE;
-import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_ALLOWLISTS;
 import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_BACKUP;
 import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_BROADCAST;
 import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_CLEANUP;
@@ -4971,7 +4971,7 @@
     }
 
     @Override
-    public List<ResolveInfo> queryIntentComponentsForIntentSender(
+    public ParceledListSlice<ResolveInfo> queryIntentComponentsForIntentSender(
             IIntentSender pendingResult, int matchFlags) {
         enforceCallingPermission(Manifest.permission.GET_INTENT_SENDER_INTENT,
                 "queryIntentComponentsForIntentSender()");
@@ -4989,15 +4989,15 @@
         final int userId = res.key.userId;
         switch (res.key.type) {
             case ActivityManager.INTENT_SENDER_ACTIVITY:
-                return mContext.getPackageManager().queryIntentActivitiesAsUser(
-                        intent, matchFlags, userId);
+                return new ParceledListSlice<>(mContext.getPackageManager()
+                        .queryIntentActivitiesAsUser(intent, matchFlags, userId));
             case ActivityManager.INTENT_SENDER_SERVICE:
             case ActivityManager.INTENT_SENDER_FOREGROUND_SERVICE:
-                return mContext.getPackageManager().queryIntentServicesAsUser(
-                        intent, matchFlags, userId);
+                return new ParceledListSlice<>(mContext.getPackageManager()
+                        .queryIntentServicesAsUser(intent, matchFlags, userId));
             case ActivityManager.INTENT_SENDER_BROADCAST:
-                return mContext.getPackageManager().queryBroadcastReceiversAsUser(
-                        intent, matchFlags, userId);
+                return new ParceledListSlice<>(mContext.getPackageManager()
+                        .queryBroadcastReceiversAsUser(intent, matchFlags, userId));
             default: // ActivityManager.INTENT_SENDER_ACTIVITY_RESULT
                 throw new IllegalStateException("Unsupported intent sender type: " + res.key.type);
         }
diff --git a/services/core/java/com/android/server/am/BatteryStatsService.java b/services/core/java/com/android/server/am/BatteryStatsService.java
index ce2852c..360e1b4 100644
--- a/services/core/java/com/android/server/am/BatteryStatsService.java
+++ b/services/core/java/com/android/server/am/BatteryStatsService.java
@@ -85,7 +85,6 @@
 import com.android.net.module.util.NetworkCapabilitiesUtils;
 import com.android.server.LocalServices;
 import com.android.server.Watchdog;
-import com.android.server.connectivity.DataConnectionStats;
 import com.android.server.net.BaseNetworkObserver;
 import com.android.server.pm.UserManagerInternal;
 
diff --git a/services/core/java/com/android/server/connectivity/DataConnectionStats.java b/services/core/java/com/android/server/am/DataConnectionStats.java
similarity index 90%
rename from services/core/java/com/android/server/connectivity/DataConnectionStats.java
rename to services/core/java/com/android/server/am/DataConnectionStats.java
index 15f43a0..6e39a4c 100644
--- a/services/core/java/com/android/server/connectivity/DataConnectionStats.java
+++ b/services/core/java/com/android/server/am/DataConnectionStats.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.android.server.connectivity;
+package com.android.server.am;
 
 import static android.telephony.AccessNetworkConstants.TRANSPORT_TYPE_WWAN;
 import static android.telephony.NetworkRegistrationInfo.DOMAIN_PS;
@@ -34,11 +34,11 @@
 import android.util.Log;
 
 import com.android.internal.app.IBatteryStats;
-import com.android.server.am.BatteryStatsService;
 
 import java.util.concurrent.Executor;
 import java.util.concurrent.RejectedExecutionException;
 
+/** Class for receiving data connection state to report to {@link BatteryStatsService}. */
 public class DataConnectionStats extends BroadcastReceiver {
     private static final String TAG = "DataConnectionStats";
     private static final boolean DEBUG = false;
@@ -62,14 +62,14 @@
                 new PhoneStateListenerImpl(new PhoneStateListenerExecutor(listenerHandler));
     }
 
+    /** Start data connection state monitoring. */
     public void startMonitoring() {
-        TelephonyManager phone =
-                (TelephonyManager)mContext.getSystemService(Context.TELEPHONY_SERVICE);
+        TelephonyManager phone = mContext.getSystemService(TelephonyManager.class);
         phone.listen(mPhoneStateListener,
                 PhoneStateListener.LISTEN_SERVICE_STATE
-              | PhoneStateListener.LISTEN_SIGNAL_STRENGTHS
-              | PhoneStateListener.LISTEN_DATA_CONNECTION_STATE
-              | PhoneStateListener.LISTEN_DATA_ACTIVITY);
+                | PhoneStateListener.LISTEN_SIGNAL_STRENGTHS
+                | PhoneStateListener.LISTEN_DATA_CONNECTION_STATE
+                | PhoneStateListener.LISTEN_DATA_ACTIVITY);
 
         IntentFilter filter = new IntentFilter();
         filter.addAction(Intent.ACTION_SIM_STATE_CHANGED);
@@ -103,8 +103,10 @@
         if (mNrState == NetworkRegistrationInfo.NR_STATE_CONNECTED) {
             networkType = TelephonyManager.NETWORK_TYPE_NR;
         }
-        if (DEBUG) Log.d(TAG, String.format("Noting data connection for network type %s: %svisible",
-                networkType, visible ? "" : "not "));
+        if (DEBUG) {
+            Log.d(TAG, String.format("Noting data connection for network type %s: %svisible",
+                    networkType, visible ? "" : "not "));
+        }
         try {
             mBatteryStats.notePhoneDataConnectionState(networkType, visible,
                     mServiceState.getState());
@@ -113,7 +115,7 @@
         }
     }
 
-    private final void updateSimState(Intent intent) {
+    private void updateSimState(Intent intent) {
         String stateExtra = intent.getStringExtra(Intent.EXTRA_SIM_STATE);
         if (Intent.SIM_STATE_ABSENT.equals(stateExtra)) {
             mSimState = TelephonyManager.SIM_STATE_ABSENT;
diff --git a/services/core/java/com/android/server/appop/AppOpsService.java b/services/core/java/com/android/server/appop/AppOpsService.java
index 11125dd..4a12ff6 100644
--- a/services/core/java/com/android/server/appop/AppOpsService.java
+++ b/services/core/java/com/android/server/appop/AppOpsService.java
@@ -848,10 +848,7 @@
                     proxyAttributionTag, uidState, flags);
 
             mHistoricalRegistry.incrementOpAccessedCount(parent.op, parent.uid, parent.packageName,
-                    tag, uidState, flags);
-
-            mHistoricalRegistry.mDiscreteRegistry.recordDiscreteAccess(parent.uid,
-                    parent.packageName, parent.op, tag, flags, uidState, accessTime, -1);
+                    tag, uidState, flags, accessTime);
         }
 
         /**
@@ -955,9 +952,10 @@
                 mInProgressEvents = new ArrayMap<>(1);
             }
 
+            long startTime = System.currentTimeMillis();
             InProgressStartOpEvent event = mInProgressEvents.get(clientId);
             if (event == null) {
-                event = mInProgressStartOpEventPool.acquire(System.currentTimeMillis(),
+                event = mInProgressStartOpEventPool.acquire(startTime,
                         SystemClock.elapsedRealtime(), clientId,
                         PooledLambda.obtainRunnable(AppOpsService::onClientDeath, this, clientId),
                         proxyUid, proxyPackageName, proxyAttributionTag, uidState, flags);
@@ -971,7 +969,7 @@
             event.numUnfinishedStarts++;
 
             mHistoricalRegistry.incrementOpAccessedCount(parent.op, parent.uid, parent.packageName,
-                    tag, uidState, flags);
+                    tag, uidState, flags, startTime);
         }
 
         /**
@@ -1017,11 +1015,7 @@
 
                 mHistoricalRegistry.increaseOpAccessDuration(parent.op, parent.uid,
                         parent.packageName, tag, event.getUidState(),
-                        event.getFlags(), finishedEvent.getDuration());
-
-                mHistoricalRegistry.mDiscreteRegistry.recordDiscreteAccess(parent.uid,
-                        parent.packageName, parent.op, tag, event.getFlags(), event.getUidState(),
-                        event.getStartTime(), accessDurationMillis);
+                        event.getFlags(), finishedEvent.getNoteTime(), finishedEvent.getDuration());
 
                 mInProgressStartOpEventPool.release(event);
 
@@ -4769,7 +4763,7 @@
                 mFile.failWrite(stream);
             }
         }
-        mHistoricalRegistry.mDiscreteRegistry.writeAndClearAccessHistory();
+        mHistoricalRegistry.writeAndClearDiscreteHistory();
     }
 
     static class Shell extends ShellCommand {
@@ -6125,8 +6119,7 @@
         mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_APPOPS,
                 "clearHistory");
         // Must not hold the appops lock
-        mHistoricalRegistry.clearHistory();
-        mHistoricalRegistry.mDiscreteRegistry.clearHistory();
+        mHistoricalRegistry.clearAllHistory();
     }
 
     @Override
diff --git a/services/core/java/com/android/server/appop/DiscreteRegistry.java b/services/core/java/com/android/server/appop/DiscreteRegistry.java
index 7699045..a99d908 100644
--- a/services/core/java/com/android/server/appop/DiscreteRegistry.java
+++ b/services/core/java/com/android/server/appop/DiscreteRegistry.java
@@ -495,6 +495,12 @@
             int nAttributedOps = attributedOps.size();
             for (int i = nAttributedOps - 1; i >= 0; i--) {
                 DiscreteOpEvent previousOp = attributedOps.get(i);
+                if (i == nAttributedOps - 1 && previousOp.mNoteTime == accessTime
+                        && accessDuration > -1) {
+                    // existing event with updated duration
+                    attributedOps.remove(i);
+                    break;
+                }
                 if (previousOp.mNoteTime < accessTime) {
                     break;
                 }
diff --git a/services/core/java/com/android/server/appop/HistoricalRegistry.java b/services/core/java/com/android/server/appop/HistoricalRegistry.java
index 1c43fed..0fcf5ee 100644
--- a/services/core/java/com/android/server/appop/HistoricalRegistry.java
+++ b/services/core/java/com/android/server/appop/HistoricalRegistry.java
@@ -138,7 +138,7 @@
     private static final String PARAMETER_ASSIGNMENT = "=";
     private static final String PROPERTY_PERMISSIONS_HUB_ENABLED = "permissions_hub_enabled";
 
-    volatile @NonNull DiscreteRegistry mDiscreteRegistry;
+    private volatile @NonNull DiscreteRegistry mDiscreteRegistry;
 
     @GuardedBy("mLock")
     private @NonNull LinkedList<HistoricalOps> mPendingWrites = new LinkedList<>();
@@ -477,7 +477,8 @@
     }
 
     void incrementOpAccessedCount(int op, int uid, @NonNull String packageName,
-            @Nullable String attributionTag, @UidState int uidState, @OpFlags int flags) {
+            @Nullable String attributionTag, @UidState int uidState, @OpFlags int flags,
+            long accessTime) {
         synchronized (mInMemoryLock) {
             if (mMode == AppOpsManager.HISTORICAL_MODE_ENABLED_ACTIVE) {
                 if (!isPersistenceInitializedMLocked()) {
@@ -487,6 +488,9 @@
                 getUpdatedPendingHistoricalOpsMLocked(
                         System.currentTimeMillis()).increaseAccessCount(op, uid, packageName,
                         attributionTag, uidState, flags, 1);
+
+                mDiscreteRegistry.recordDiscreteAccess(uid, packageName, op, attributionTag,
+                        flags, uidState, accessTime, -1);
             }
         }
     }
@@ -508,7 +512,7 @@
 
     void increaseOpAccessDuration(int op, int uid, @NonNull String packageName,
             @Nullable String attributionTag, @UidState int uidState, @OpFlags int flags,
-            long increment) {
+            long eventStartTime, long increment) {
         synchronized (mInMemoryLock) {
             if (mMode == AppOpsManager.HISTORICAL_MODE_ENABLED_ACTIVE) {
                 if (!isPersistenceInitializedMLocked()) {
@@ -518,6 +522,8 @@
                 getUpdatedPendingHistoricalOpsMLocked(
                         System.currentTimeMillis()).increaseAccessDuration(op, uid, packageName,
                         attributionTag, uidState, flags, increment);
+                mDiscreteRegistry.recordDiscreteAccess(uid, packageName, op, attributionTag,
+                        flags, uidState, increment, eventStartTime);
             }
         }
     }
@@ -562,7 +568,7 @@
                     return;
                 }
                 final List<HistoricalOps> history = mPersistence.readHistoryDLocked();
-                clearHistory();
+                clearHistoricalRegistry();
                 if (history != null) {
                     final int historySize = history.size();
                     for (int i = 0; i < historySize; i++) {
@@ -631,7 +637,16 @@
         }
     }
 
-    void clearHistory() {
+    void writeAndClearDiscreteHistory() {
+        mDiscreteRegistry.writeAndClearAccessHistory();
+    }
+
+    void clearAllHistory() {
+        clearHistoricalRegistry();
+        mDiscreteRegistry.clearHistory();
+    }
+
+    void clearHistoricalRegistry() {
         synchronized (mOnDiskLock) {
             synchronized (mInMemoryLock) {
                 if (!isPersistenceInitializedMLocked()) {
diff --git a/services/core/java/com/android/server/audio/AudioService.java b/services/core/java/com/android/server/audio/AudioService.java
index f5b9417..8363c9d2 100644
--- a/services/core/java/com/android/server/audio/AudioService.java
+++ b/services/core/java/com/android/server/audio/AudioService.java
@@ -6958,7 +6958,10 @@
     private void onSetVolumeIndexOnDevice(@NonNull DeviceVolumeUpdate update) {
         final VolumeStreamState streamState = mStreamStates[update.mStreamType];
         if (update.hasVolumeIndex()) {
-            final int index = update.getVolumeIndex();
+            int index = update.getVolumeIndex();
+            if (!checkSafeMediaVolume(update.mStreamType, index, update.mDevice)) {
+                index = safeMediaVolumeIndex(update.mDevice);
+            }
             streamState.setIndex(index, update.mDevice, update.mCaller,
                     // trusted as index is always validated before message is posted
                     true /*hasModifyAudioSettings*/);
diff --git a/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java b/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java
index cac6cab..1d0e115 100644
--- a/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java
+++ b/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java
@@ -35,7 +35,7 @@
 import android.net.NetworkInfo;
 import android.net.NetworkMonitorManager;
 import android.net.NetworkRequest;
-import android.net.NetworkState;
+import android.net.NetworkStateSnapshot;
 import android.net.QosCallbackException;
 import android.net.QosFilter;
 import android.net.QosFilterParcelable;
@@ -890,15 +890,18 @@
         mScore = score;
     }
 
-    public NetworkState getNetworkState() {
+    /**
+     * Return a {@link NetworkStateSnapshot} for this network.
+     */
+    @NonNull
+    public NetworkStateSnapshot getNetworkStateSnapshot() {
         synchronized (this) {
             // Network objects are outwardly immutable so there is no point in duplicating.
             // Duplicating also precludes sharing socket factories and connection pools.
             final String subscriberId = (networkAgentConfig != null)
                     ? networkAgentConfig.subscriberId : null;
-            return new NetworkState(new NetworkInfo(networkInfo),
-                    new LinkProperties(linkProperties),
-                    new NetworkCapabilities(networkCapabilities), network, subscriberId);
+            return new NetworkStateSnapshot(network, new NetworkCapabilities(networkCapabilities),
+                    new LinkProperties(linkProperties), subscriberId, networkInfo.getType());
         }
     }
 
diff --git a/services/core/java/com/android/server/display/LocalDisplayAdapter.java b/services/core/java/com/android/server/display/LocalDisplayAdapter.java
index 3709963..a0d9365 100644
--- a/services/core/java/com/android/server/display/LocalDisplayAdapter.java
+++ b/services/core/java/com/android/server/display/LocalDisplayAdapter.java
@@ -767,6 +767,12 @@
                     }
 
                     private void setDisplayBrightness(float brightness) {
+                        // Ensure brightnessState is valid, before processing and sending to
+                        // surface control
+                        if (Float.isNaN(brightness)) {
+                            return;
+                        }
+
                         if (DEBUG) {
                             Slog.d(TAG, "setDisplayBrightness("
                                     + "id=" + physicalDisplayId
diff --git a/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceTv.java b/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceTv.java
index 18f7a06865..7235a92 100644
--- a/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceTv.java
+++ b/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceTv.java
@@ -1073,7 +1073,21 @@
             // Ignore this message.
             return true;
         }
-        setSystemAudioMode(HdmiUtils.parseCommandParamSystemAudioStatus(message));
+        boolean tvSystemAudioMode = isSystemAudioControlFeatureEnabled();
+        boolean avrSystemAudioMode = HdmiUtils.parseCommandParamSystemAudioStatus(message);
+        // Set System Audio Mode according to TV's settings.
+        // Handle <System Audio Mode Status> here only when
+        // SystemAudioAutoInitiationAction timeout
+        HdmiDeviceInfo avr = getAvrDeviceInfo();
+        if (avr == null) {
+            setSystemAudioMode(false);
+        } else if (avrSystemAudioMode != tvSystemAudioMode) {
+            addAndStartAction(new SystemAudioActionFromTv(this, avr.getLogicalAddress(),
+                    tvSystemAudioMode, null));
+        } else {
+            setSystemAudioMode(tvSystemAudioMode);
+        }
+
         return true;
     }
 
diff --git a/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java b/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
index c0d577c..4e8fcf7 100644
--- a/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
+++ b/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
@@ -159,6 +159,7 @@
 import com.android.internal.content.PackageMonitor;
 import com.android.internal.inputmethod.CallbackUtils;
 import com.android.internal.inputmethod.IBooleanResultCallback;
+import com.android.internal.inputmethod.IIInputContentUriTokenResultCallback;
 import com.android.internal.inputmethod.IInputBindResultResultCallback;
 import com.android.internal.inputmethod.IInputContentUriToken;
 import com.android.internal.inputmethod.IInputMethodInfoListResultCallback;
@@ -5883,87 +5884,102 @@
 
         @BinderThread
         @Override
-        public void setImeWindowStatus(int vis, int backDisposition) {
-            mImms.setImeWindowStatus(mToken, vis, backDisposition);
+        public void setImeWindowStatus(int vis, int backDisposition,
+                IVoidResultCallback resultCallback) {
+            CallbackUtils.onResult(resultCallback,
+                    () -> mImms.setImeWindowStatus(mToken, vis, backDisposition));
         }
 
         @BinderThread
         @Override
-        public void reportStartInput(IBinder startInputToken) {
-            mImms.reportStartInput(mToken, startInputToken);
+        public void reportStartInput(IBinder startInputToken, IVoidResultCallback resultCallback) {
+            CallbackUtils.onResult(resultCallback,
+                    () -> mImms.reportStartInput(mToken, startInputToken));
         }
 
         @BinderThread
         @Override
-        public IInputContentUriToken createInputContentUriToken(Uri contentUri,
-                String packageName) {
-            return mImms.createInputContentUriToken(mToken, contentUri, packageName);
+        public void createInputContentUriToken(Uri contentUri, String packageName,
+                IIInputContentUriTokenResultCallback resultCallback) {
+            CallbackUtils.onResult(resultCallback,
+                    () -> mImms.createInputContentUriToken(mToken, contentUri, packageName));
         }
 
         @BinderThread
         @Override
-        public void reportFullscreenMode(boolean fullscreen) {
-            mImms.reportFullscreenMode(mToken, fullscreen);
+        public void reportFullscreenMode(boolean fullscreen, IVoidResultCallback resultCallback) {
+            CallbackUtils.onResult(resultCallback,
+                    () -> mImms.reportFullscreenMode(mToken, fullscreen));
         }
 
         @BinderThread
         @Override
-        public void setInputMethod(String id) {
-            mImms.setInputMethod(mToken, id);
+        public void setInputMethod(String id, IVoidResultCallback resultCallback) {
+            CallbackUtils.onResult(resultCallback, () -> mImms.setInputMethod(mToken, id));
         }
 
         @BinderThread
         @Override
-        public void setInputMethodAndSubtype(String id, InputMethodSubtype subtype) {
-            mImms.setInputMethodAndSubtype(mToken, id, subtype);
+        public void setInputMethodAndSubtype(String id, InputMethodSubtype subtype,
+                IVoidResultCallback resultCallback) {
+            CallbackUtils.onResult(resultCallback,
+                    () -> mImms.setInputMethodAndSubtype(mToken, id, subtype));
         }
 
         @BinderThread
         @Override
-        public void hideMySoftInput(int flags) {
-            mImms.hideMySoftInput(mToken, flags);
+        public void hideMySoftInput(int flags, IVoidResultCallback resultCallback) {
+            CallbackUtils.onResult(resultCallback, () -> mImms.hideMySoftInput(mToken, flags));
         }
 
         @BinderThread
         @Override
-        public void showMySoftInput(int flags) {
-            mImms.showMySoftInput(mToken, flags);
+        public void showMySoftInput(int flags, IVoidResultCallback resultCallback) {
+            CallbackUtils.onResult(resultCallback, () -> mImms.showMySoftInput(mToken, flags));
         }
 
         @BinderThread
         @Override
-        public void updateStatusIcon(String packageName, @DrawableRes int iconId) {
-            mImms.updateStatusIcon(mToken, packageName, iconId);
+        public void updateStatusIcon(String packageName, @DrawableRes int iconId,
+                IVoidResultCallback resultCallback) {
+            CallbackUtils.onResult(resultCallback,
+                    () -> mImms.updateStatusIcon(mToken, packageName, iconId));
         }
 
         @BinderThread
         @Override
-        public boolean switchToPreviousInputMethod() {
-            return mImms.switchToPreviousInputMethod(mToken);
+        public void switchToPreviousInputMethod(IBooleanResultCallback resultCallback) {
+            CallbackUtils.onResult(resultCallback, () -> mImms.switchToPreviousInputMethod(mToken));
         }
 
         @BinderThread
         @Override
-        public boolean switchToNextInputMethod(boolean onlyCurrentIme) {
-            return mImms.switchToNextInputMethod(mToken, onlyCurrentIme);
+        public void switchToNextInputMethod(boolean onlyCurrentIme,
+                IBooleanResultCallback resultCallback) {
+            CallbackUtils.onResult(resultCallback,
+                    () -> mImms.switchToNextInputMethod(mToken, onlyCurrentIme));
         }
 
         @BinderThread
         @Override
-        public boolean shouldOfferSwitchingToNextInputMethod() {
-            return mImms.shouldOfferSwitchingToNextInputMethod(mToken);
+        public void shouldOfferSwitchingToNextInputMethod(
+                IBooleanResultCallback resultCallback) {
+            CallbackUtils.onResult(resultCallback,
+                    () -> mImms.shouldOfferSwitchingToNextInputMethod(mToken));
         }
 
         @BinderThread
         @Override
-        public void notifyUserAction() {
-            mImms.notifyUserAction(mToken);
+        public void notifyUserAction(IVoidResultCallback resultCallback) {
+            CallbackUtils.onResult(resultCallback, () -> mImms.notifyUserAction(mToken));
         }
 
         @BinderThread
         @Override
-        public void applyImeVisibility(IBinder windowToken, boolean setVisible) {
-            mImms.applyImeVisibility(mToken, windowToken, setVisible);
+        public void applyImeVisibility(IBinder windowToken, boolean setVisible,
+                IVoidResultCallback resultCallback) {
+            CallbackUtils.onResult(resultCallback,
+                    () -> mImms.applyImeVisibility(mToken, windowToken, setVisible));
         }
     }
 }
diff --git a/services/core/java/com/android/server/location/injector/SystemEmergencyHelper.java b/services/core/java/com/android/server/location/injector/SystemEmergencyHelper.java
index 05d0aef..dbd8dd9 100644
--- a/services/core/java/com/android/server/location/injector/SystemEmergencyHelper.java
+++ b/services/core/java/com/android/server/location/injector/SystemEmergencyHelper.java
@@ -21,7 +21,7 @@
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.os.SystemClock;
-import android.telephony.PhoneStateListener;
+import android.telephony.TelephonyCallback;
 import android.telephony.TelephonyManager;
 
 import com.android.server.FgThread;
@@ -55,8 +55,8 @@
 
         // TODO: this doesn't account for multisim phones
 
-        mTelephonyManager.registerPhoneStateListener(FgThread.getExecutor(),
-                new EmergencyCallPhoneStateListener());
+        mTelephonyManager.registerTelephonyCallback(FgThread.getExecutor(),
+                new EmergencyCallTelephonyCallback());
         mContext.registerReceiver(new BroadcastReceiver() {
             @Override
             public void onReceive(Context context, Intent intent) {
@@ -78,8 +78,8 @@
                 || mTelephonyManager.isInEmergencySmsMode();
     }
 
-    private class EmergencyCallPhoneStateListener extends PhoneStateListener implements
-            PhoneStateListener.CallStateChangedListener {
+    private class EmergencyCallTelephonyCallback extends TelephonyCallback implements
+            TelephonyCallback.CallStateListener{
 
         @Override
         public void onCallStateChanged(int state, String incomingNumber) {
diff --git a/services/core/java/com/android/server/locksettings/RebootEscrowManager.java b/services/core/java/com/android/server/locksettings/RebootEscrowManager.java
index 7e00fd6..364aa2c 100644
--- a/services/core/java/com/android/server/locksettings/RebootEscrowManager.java
+++ b/services/core/java/com/android/server/locksettings/RebootEscrowManager.java
@@ -193,6 +193,17 @@
                     0);
         }
 
+        public int getLoadEscrowDataRetryLimit() {
+            return DeviceConfig.getInt(DeviceConfig.NAMESPACE_OTA,
+                    "load_escrow_data_retry_count", DEFAULT_LOAD_ESCROW_DATA_RETRY_COUNT);
+        }
+
+        public int getLoadEscrowDataRetryIntervalSeconds() {
+            return DeviceConfig.getInt(DeviceConfig.NAMESPACE_OTA,
+                    "load_escrow_data_retry_interval_seconds",
+                    DEFAULT_LOAD_ESCROW_DATA_RETRY_INTERVAL_SECONDS);
+        }
+
         public void reportMetric(boolean success) {
             // TODO(b/179105110) design error code; and report the true value for other fields.
             FrameworkStatsLog.write(FrameworkStatsLog.REBOOT_ESCROW_RECOVERY_REPORTED, 0, 1, 1,
@@ -251,11 +262,8 @@
             List<UserInfo> users, List<UserInfo> rebootEscrowUsers) {
         Objects.requireNonNull(retryHandler);
 
-        final int retryLimit = DeviceConfig.getInt(DeviceConfig.NAMESPACE_OTA,
-                "load_escrow_data_retry_count", DEFAULT_LOAD_ESCROW_DATA_RETRY_COUNT);
-        final int retryIntervalInSeconds = DeviceConfig.getInt(DeviceConfig.NAMESPACE_OTA,
-                "load_escrow_data_retry_interval_seconds",
-                DEFAULT_LOAD_ESCROW_DATA_RETRY_INTERVAL_SECONDS);
+        final int retryLimit = mInjector.getLoadEscrowDataRetryLimit();
+        final int retryIntervalInSeconds = mInjector.getLoadEscrowDataRetryIntervalSeconds();
 
         if (attemptNumber < retryLimit) {
             Slog.i(TAG, "Scheduling loadRebootEscrowData retry number: " + attemptNumber);
diff --git a/services/core/java/com/android/server/locksettings/ResumeOnRebootServiceProvider.java b/services/core/java/com/android/server/locksettings/ResumeOnRebootServiceProvider.java
index 9c471b8..ec80521 100644
--- a/services/core/java/com/android/server/locksettings/ResumeOnRebootServiceProvider.java
+++ b/services/core/java/com/android/server/locksettings/ResumeOnRebootServiceProvider.java
@@ -136,7 +136,7 @@
         }
 
         /** Bind to the service */
-        public void bindToService(long timeOut) throws TimeoutException {
+        public void bindToService(long timeOut) throws RemoteException, TimeoutException {
             if (mBinder == null || !mBinder.asBinder().isBinderAlive()) {
                 CountDownLatch connectionLatch = new CountDownLatch(1);
                 Intent intent = new Intent();
@@ -210,27 +210,25 @@
 
         private void throwTypedException(
                 ParcelableException exception)
-                throws IOException {
-            if (exception.getCause() instanceof IOException) {
+                throws IOException, RemoteException {
+            if (exception != null && exception.getCause() instanceof IOException) {
                 exception.maybeRethrow(IOException.class);
-            } else if (exception.getCause() instanceof IllegalStateException) {
-                exception.maybeRethrow(IllegalStateException.class);
             } else {
-                // This should not happen. Wrap the cause in IllegalStateException so that it
-                // doesn't disrupt the exception handling
-                throw new IllegalStateException(exception.getCause());
+                // Wrap the exception and throw it as a RemoteException.
+                throw new RemoteException(TAG + " wrap/unwrap failed", exception,
+                        true /* enableSuppression */, true /* writableStackTrace */);
             }
         }
 
         private void waitForLatch(CountDownLatch latch, String reason, long timeOut)
-                throws TimeoutException {
+                throws RemoteException, TimeoutException {
             try {
                 if (!latch.await(timeOut, TimeUnit.SECONDS)) {
                     throw new TimeoutException("Latch wait for " + reason + " elapsed");
                 }
             } catch (InterruptedException e) {
                 Thread.currentThread().interrupt();
-                throw new IllegalStateException("Latch wait for " + reason + " interrupted");
+                throw new RemoteException("Latch wait for " + reason + " interrupted");
             }
         }
     }
diff --git a/services/core/java/com/android/server/locksettings/SyntheticPasswordManager.java b/services/core/java/com/android/server/locksettings/SyntheticPasswordManager.java
index 7ab8b27..a5763ae 100644
--- a/services/core/java/com/android/server/locksettings/SyntheticPasswordManager.java
+++ b/services/core/java/com/android/server/locksettings/SyntheticPasswordManager.java
@@ -35,6 +35,7 @@
 import android.service.gatekeeper.GateKeeperResponse;
 import android.service.gatekeeper.IGateKeeperService;
 import android.util.ArrayMap;
+import android.util.ArraySet;
 import android.util.Slog;
 
 import com.android.internal.annotations.VisibleForTesting;
@@ -906,7 +907,7 @@
         if (!tokenMap.containsKey(userId)) {
             return Collections.emptySet();
         }
-        return tokenMap.get(userId).keySet();
+        return new ArraySet<>(tokenMap.get(userId).keySet());
     }
 
     public boolean removePendingToken(long handle, int userId) {
diff --git a/services/core/java/com/android/server/net/NetworkPolicyManagerService.java b/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
index 067c5c0e..a2f2f98 100644
--- a/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
+++ b/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
@@ -169,7 +169,6 @@
 import android.net.NetworkPolicy;
 import android.net.NetworkPolicyManager;
 import android.net.NetworkPolicyManager.UidState;
-import android.net.NetworkQuotaInfo;
 import android.net.NetworkRequest;
 import android.net.NetworkSpecifier;
 import android.net.NetworkStack;
@@ -3164,14 +3163,6 @@
         }
     }
 
-    @Override
-    @Deprecated
-    public NetworkQuotaInfo getNetworkQuotaInfo(NetworkState state) {
-        Log.w(TAG, "Shame on UID " + Binder.getCallingUid()
-                + " for calling the hidden API getNetworkQuotaInfo(). Shame!");
-        return new NetworkQuotaInfo();
-    }
-
     private void enforceSubscriptionPlanAccess(int subId, int callingUid, String callingPackage) {
         // Verify they're not lying about package name
         mAppOps.checkPackage(callingUid, callingPackage);
diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index 7da53b5..b751503 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -20368,6 +20368,11 @@
             return;
         }
 
+        if (isIncrementalPath(pkg.getPath()) && IncrementalManager.getVersion()
+                < IncrementalManager.MIN_VERSION_TO_SUPPORT_FSVERITY) {
+            return;
+        }
+
         // Collect files we care for fs-verity setup.
         ArrayMap<String, String> fsverityCandidates = new ArrayMap<>();
         if (legacyMode) {
diff --git a/services/core/java/com/android/server/pm/SettingsXml.java b/services/core/java/com/android/server/pm/SettingsXml.java
index ec643f5..c53fef7 100644
--- a/services/core/java/com/android/server/pm/SettingsXml.java
+++ b/services/core/java/com/android/server/pm/SettingsXml.java
@@ -83,7 +83,7 @@
         @Override
         public void close() throws IOException {
             mWriteSection.closeCompletely();
-            mXmlSerializer.endDocument();
+            mXmlSerializer.flush();
         }
     }
 
diff --git a/services/core/java/com/android/server/pm/UserManagerService.java b/services/core/java/com/android/server/pm/UserManagerService.java
index 871576e..8283ac6 100644
--- a/services/core/java/com/android/server/pm/UserManagerService.java
+++ b/services/core/java/com/android/server/pm/UserManagerService.java
@@ -1544,7 +1544,7 @@
     public String getUserName() {
         final int callingUid = Binder.getCallingUid();
         if (!hasManageOrCreateUsersPermission()
-                || hasPermissionGranted(
+                && !hasPermissionGranted(
                         android.Manifest.permission.GET_ACCOUNTS_PRIVILEGED, callingUid)) {
             throw new SecurityException("You need MANAGE_USERS or CREATE_USERS or "
                     + "GET_ACCOUNTS_PRIVILEGED permissions to: get user name");
diff --git a/services/core/java/com/android/server/pm/verify/domain/DomainVerificationLegacySettings.java b/services/core/java/com/android/server/pm/verify/domain/DomainVerificationLegacySettings.java
index c787356..4bad102 100644
--- a/services/core/java/com/android/server/pm/verify/domain/DomainVerificationLegacySettings.java
+++ b/services/core/java/com/android/server/pm/verify/domain/DomainVerificationLegacySettings.java
@@ -32,7 +32,6 @@
 import org.xmlpull.v1.XmlPullParserException;
 
 import java.io.IOException;
-import java.util.Map;
 
 /**
  * Reads and writes the old {@link android.content.pm.IntentFilterVerificationInfo} so that it can
diff --git a/services/core/java/com/android/server/policy/KeyCombinationManager.java b/services/core/java/com/android/server/policy/KeyCombinationManager.java
index 84ac124..7f55723 100644
--- a/services/core/java/com/android/server/policy/KeyCombinationManager.java
+++ b/services/core/java/com/android/server/policy/KeyCombinationManager.java
@@ -102,9 +102,11 @@
     }
 
     /**
-     * Check if the key event could be triggered by combine key rule before dispatching to a window.
+     * Check if the key event could be intercepted by combination key rule before it is dispatched
+     * to a window.
+     * Return true if any active rule could be triggered by the key event, otherwise false.
      */
-    void interceptKey(KeyEvent event, boolean interactive) {
+    boolean interceptKey(KeyEvent event, boolean interactive) {
         final boolean down = event.getAction() == KeyEvent.ACTION_DOWN;
         final int keyCode = event.getKeyCode();
         final int count = mActiveRules.size();
@@ -117,9 +119,9 @@
                     // exceed time from first key down.
                     forAllRules(mActiveRules, (rule)-> rule.cancel());
                     mActiveRules.clear();
-                    return;
+                    return false;
                 } else if (count == 0) { // has some key down but no active rule exist.
-                    return;
+                    return false;
                 }
             }
 
@@ -127,7 +129,7 @@
                 mDownTimes.put(keyCode, eventTime);
             } else {
                 // ignore old key, maybe a repeat key.
-                return;
+                return false;
             }
 
             if (mDownTimes.size() == 1) {
@@ -141,7 +143,7 @@
             } else {
                 // Ignore if rule already triggered.
                 if (mTriggeredRule != null) {
-                    return;
+                    return true;
                 }
 
                 // check if second key can trigger rule, or remove the non-match rule.
@@ -156,6 +158,7 @@
                 mActiveRules.clear();
                 if (mTriggeredRule != null) {
                     mActiveRules.add(mTriggeredRule);
+                    return true;
                 }
             }
         } else {
@@ -168,6 +171,7 @@
                 }
             }
         }
+        return false;
     }
 
     /**
diff --git a/services/core/java/com/android/server/policy/PhoneWindowManager.java b/services/core/java/com/android/server/policy/PhoneWindowManager.java
index bce218f..047e3b3 100644
--- a/services/core/java/com/android/server/policy/PhoneWindowManager.java
+++ b/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -73,6 +73,8 @@
 import static android.view.WindowManagerGlobal.ADD_PERMISSION_DENIED;
 
 import static com.android.internal.config.sysui.SystemUiDeviceConfigFlags.SCREENSHOT_KEYCHORD_DELAY;
+import static com.android.server.policy.SingleKeyGestureDetector.KEY_LONGPRESS;
+import static com.android.server.policy.SingleKeyGestureDetector.KEY_VERYLONGPRESS;
 import static com.android.server.policy.WindowManagerPolicy.WindowManagerFuncs.CAMERA_LENS_COVERED;
 import static com.android.server.policy.WindowManagerPolicy.WindowManagerFuncs.CAMERA_LENS_COVER_ABSENT;
 import static com.android.server.policy.WindowManagerPolicy.WindowManagerFuncs.CAMERA_LENS_UNCOVERED;
@@ -430,7 +432,6 @@
     volatile boolean mPowerKeyHandled;
     volatile boolean mBackKeyHandled;
     volatile boolean mBeganFromNonInteractive;
-    volatile int mPowerKeyPressCounter;
     volatile boolean mEndCallKeyHandled;
     volatile boolean mCameraGestureTriggeredDuringGoingToSleep;
     volatile boolean mGoingToSleep;
@@ -471,7 +472,6 @@
     boolean mHasSoftInput = false;
     boolean mHapticTextHandleEnabled;
     boolean mUseTvRouting;
-    int mVeryLongPressTimeout;
     boolean mAllowStartActivityForLongPressOnPowerDuringSetup;
     MetricsLogger mLogger;
     boolean mWakeOnDpadKeyPress;
@@ -567,14 +567,13 @@
     private final com.android.internal.policy.LogDecelerateInterpolator mLogDecelerateInterpolator
             = new LogDecelerateInterpolator(100, 0);
 
-    private final MutableBoolean mTmpBoolean = new MutableBoolean(false);
-
     private boolean mPerDisplayFocusEnabled = false;
     private volatile int mTopFocusedDisplayId = INVALID_DISPLAY;
 
     private int mPowerButtonSuppressionDelayMillis = POWER_BUTTON_SUPPRESSION_DELAY_DEFAULT_MILLIS;
 
     private KeyCombinationManager mKeyCombinationManager;
+    private SingleKeyGestureDetector mSingleKeyGestureDetector;
 
     private static final int MSG_DISPATCH_MEDIA_KEY_WITH_WAKE_LOCK = 3;
     private static final int MSG_DISPATCH_MEDIA_KEY_REPEAT_WITH_WAKE_LOCK = 4;
@@ -585,10 +584,7 @@
     private static final int MSG_DISPATCH_SHOW_GLOBAL_ACTIONS = 10;
     private static final int MSG_HIDE_BOOT_MESSAGE = 11;
     private static final int MSG_LAUNCH_VOICE_ASSIST_WITH_WAKE_LOCK = 12;
-    private static final int MSG_POWER_DELAYED_PRESS = 13;
-    private static final int MSG_POWER_LONG_PRESS = 14;
     private static final int MSG_SHOW_PICTURE_IN_PICTURE_MENU = 15;
-    private static final int MSG_BACK_LONG_PRESS = 16;
     private static final int MSG_ACCESSIBILITY_SHORTCUT = 17;
     private static final int MSG_BUGREPORT_TV = 18;
     private static final int MSG_ACCESSIBILITY_TV = 19;
@@ -596,8 +592,7 @@
     private static final int MSG_SYSTEM_KEY_PRESS = 21;
     private static final int MSG_HANDLE_ALL_APPS = 22;
     private static final int MSG_LAUNCH_ASSIST = 23;
-    private static final int MSG_POWER_VERY_LONG_PRESS = 25;
-    private static final int MSG_RINGER_TOGGLE_CHORD = 26;
+    private static final int MSG_RINGER_TOGGLE_CHORD = 24;
 
     private class PolicyHandler extends Handler {
         @Override
@@ -638,22 +633,9 @@
                 case MSG_LAUNCH_VOICE_ASSIST_WITH_WAKE_LOCK:
                     launchVoiceAssistWithWakeLock();
                     break;
-                case MSG_POWER_DELAYED_PRESS:
-                    powerPress((Long) msg.obj, msg.arg1 != 0, msg.arg2);
-                    finishPowerKeyPress();
-                    break;
-                case MSG_POWER_LONG_PRESS:
-                    powerLongPress((Long) msg.obj /* eventTime */);
-                    break;
-                case MSG_POWER_VERY_LONG_PRESS:
-                    powerVeryLongPress();
-                    break;
                 case MSG_SHOW_PICTURE_IN_PICTURE_MENU:
                     showPictureInPictureMenuInternal();
                     break;
-                case MSG_BACK_LONG_PRESS:
-                    backLongPress();
-                    break;
                 case MSG_ACCESSIBILITY_SHORTCUT:
                     accessibilityShortcutActivated();
                     break;
@@ -764,13 +746,6 @@
         }
     };
 
-    private Runnable mPossibleVeryLongPressReboot = new Runnable() {
-        @Override
-        public void run() {
-            mActivityManagerInternal.prepareForPossibleShutdown();
-        }
-    };
-
     private void handleRingerChordGesture() {
         if (mRingerToggleChord == VOLUME_HUSH_OFF) {
             return;
@@ -810,28 +785,13 @@
         }
     }
 
-    private void interceptBackKeyDown() {
-        mLogger.count("key_back_down", 1);
-        // Reset back key state for long press
-        mBackKeyHandled = false;
-
-        if (hasLongPressOnBackBehavior()) {
-            Message msg = mHandler.obtainMessage(MSG_BACK_LONG_PRESS);
-            msg.setAsynchronous(true);
-            mHandler.sendMessageDelayed(msg,
-                    ViewConfiguration.get(mContext).getDeviceGlobalActionKeyTimeout());
-        }
-    }
 
     // returns true if the key was handled and should not be passed to the user
-    private boolean interceptBackKeyUp(KeyEvent event) {
-        mLogger.count("key_back_up", 1);
+    private boolean backKeyPress() {
+        mLogger.count("key_back_press", 1);
         // Cache handled state
         boolean handled = mBackKeyHandled;
 
-        // Reset back long press state
-        cancelPendingBackKeyAction();
-
         if (mHasFeatureWatch) {
             TelecomManager telecomManager = getTelecommService();
 
@@ -853,10 +813,9 @@
             }
         }
 
-        if (mAutofillManagerInternal != null && event.getKeyCode() == KeyEvent.KEYCODE_BACK) {
+        if (mAutofillManagerInternal != null) {
             mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_BACK_KEY_TO_AUTOFILL));
         }
-
         return handled;
     }
 
@@ -866,11 +825,6 @@
             mPowerKeyWakeLock.acquire();
         }
 
-        // Cancel multi-press detection timeout.
-        if (mPowerKeyPressCounter != 0) {
-            mHandler.removeMessages(MSG_POWER_DELAYED_PRESS);
-        }
-
         mWindowManagerFuncs.onPowerKeyDown(interactive);
 
         // Stop ringing or end call if configured to do so when power is pressed.
@@ -892,71 +846,20 @@
 
         final boolean handledByPowerManager = mPowerManagerInternal.interceptPowerKeyDown(event);
 
-        GestureLauncherService gestureService = LocalServices.getService(
-                GestureLauncherService.class);
-        boolean gesturedServiceIntercepted = false;
-        if (gestureService != null) {
-            gesturedServiceIntercepted = gestureService.interceptPowerKeyDown(event, interactive,
-                    mTmpBoolean);
-            if (mTmpBoolean.value && mRequestedOrGoingToSleep) {
-                mCameraGestureTriggeredDuringGoingToSleep = true;
-            }
-        }
-
         // Inform the StatusBar; but do not allow it to consume the event.
         sendSystemKeyToStatusBarAsync(event.getKeyCode());
 
-        schedulePossibleVeryLongPressReboot();
-
         // If the power key has still not yet been handled, then detect short
         // press, long press, or multi press and decide what to do.
-        mPowerKeyHandled = hungUp || gesturedServiceIntercepted
+        mPowerKeyHandled = mPowerKeyHandled || hungUp
                 || handledByPowerManager || mKeyCombinationManager.isPowerKeyIntercepted();
         if (!mPowerKeyHandled) {
-            if (interactive) {
-                // When interactive, we're already awake.
-                // Wait for a long press or for the button to be released to decide what to do.
-                if (hasLongPressOnPowerBehavior()) {
-                    if ((event.getFlags() & KeyEvent.FLAG_LONG_PRESS) != 0) {
-                        powerLongPress(event.getEventTime());
-                    } else {
-                        Message msg = mHandler.obtainMessage(MSG_POWER_LONG_PRESS,
-                                event.getEventTime());
-                        msg.setAsynchronous(true);
-                        mHandler.sendMessageDelayed(msg,
-                                ViewConfiguration.get(mContext).getDeviceGlobalActionKeyTimeout());
-
-                        if (hasVeryLongPressOnPowerBehavior()) {
-                            Message longMsg = mHandler.obtainMessage(MSG_POWER_VERY_LONG_PRESS);
-                            longMsg.setAsynchronous(true);
-                            mHandler.sendMessageDelayed(longMsg, mVeryLongPressTimeout);
-                        }
-                    }
-                }
-            } else {
+            if (!interactive) {
                 wakeUpFromPowerKey(event.getDownTime());
-
                 if (mSupportLongPressPowerWhenNonInteractive && hasLongPressOnPowerBehavior()) {
-                    if ((event.getFlags() & KeyEvent.FLAG_LONG_PRESS) != 0) {
-                        powerLongPress(event.getEventTime());
-                    } else {
-                        Message msg = mHandler.obtainMessage(MSG_POWER_LONG_PRESS,
-                                event.getEventTime());
-                        msg.setAsynchronous(true);
-                        mHandler.sendMessageDelayed(msg,
-                                ViewConfiguration.get(mContext).getDeviceGlobalActionKeyTimeout());
-
-                        if (hasVeryLongPressOnPowerBehavior()) {
-                            Message longMsg = mHandler.obtainMessage(MSG_POWER_VERY_LONG_PRESS);
-                            longMsg.setAsynchronous(true);
-                            mHandler.sendMessageDelayed(longMsg, mVeryLongPressTimeout);
-                        }
-                    }
-
                     mBeganFromNonInteractive = true;
                 } else {
                     final int maxCount = getMaxMultiPressPowerCount();
-
                     if (maxCount <= 1) {
                         mPowerKeyHandled = true;
                     } else {
@@ -964,68 +867,37 @@
                     }
                 }
             }
+        } else {
+            // handled by another power key policy.
+            if (!mSingleKeyGestureDetector.isKeyIntercepted(KEYCODE_POWER)) {
+                mSingleKeyGestureDetector.reset();
+            }
         }
     }
 
     private void interceptPowerKeyUp(KeyEvent event, boolean interactive, boolean canceled) {
         final boolean handled = canceled || mPowerKeyHandled;
-        cancelPendingPowerKeyAction();
 
         if (!handled) {
             if ((event.getFlags() & KeyEvent.FLAG_LONG_PRESS) == 0) {
                 // Abort possibly stuck animations only when power key up without long press case.
                 mHandler.post(mWindowManagerFuncs::triggerAnimationFailsafe);
             }
-
-            // Figure out how to handle the key now that it has been released.
-            mPowerKeyPressCounter += 1;
-
-            final int maxCount = getMaxMultiPressPowerCount();
-            final long eventTime = event.getDownTime();
-            if (mPowerKeyPressCounter < maxCount) {
-                // This could be a multi-press.  Wait a little bit longer to confirm.
-                // Continue holding the wake lock.
-                Message msg = mHandler.obtainMessage(MSG_POWER_DELAYED_PRESS,
-                        interactive ? 1 : 0, mPowerKeyPressCounter, eventTime);
-                msg.setAsynchronous(true);
-                mHandler.sendMessageDelayed(msg, ViewConfiguration.getMultiPressTimeout());
-                return;
-            }
-
-            // No other actions.  Handle it immediately.
-            powerPress(eventTime, interactive, mPowerKeyPressCounter);
+        } else {
+            // handled by single key or another power key policy.
+            mSingleKeyGestureDetector.reset();
+            finishPowerKeyPress();
         }
-
-        // Done.  Reset our state.
-        finishPowerKeyPress();
     }
 
     private void finishPowerKeyPress() {
         mBeganFromNonInteractive = false;
-        mPowerKeyPressCounter = 0;
+        mPowerKeyHandled = false;
         if (mPowerKeyWakeLock.isHeld()) {
             mPowerKeyWakeLock.release();
         }
     }
 
-    private void cancelPendingPowerKeyAction() {
-        if (!mPowerKeyHandled) {
-            mPowerKeyHandled = true;
-            mHandler.removeMessages(MSG_POWER_LONG_PRESS);
-        }
-        if (hasVeryLongPressOnPowerBehavior()) {
-            mHandler.removeMessages(MSG_POWER_VERY_LONG_PRESS);
-        }
-        cancelPossibleVeryLongPressReboot();
-    }
-
-    private void cancelPendingBackKeyAction() {
-        if (!mBackKeyHandled) {
-            mBackKeyHandled = true;
-            mHandler.removeMessages(MSG_BACK_LONG_PRESS);
-        }
-    }
-
     private void powerPress(long eventTime, boolean interactive, int count) {
         if (mDefaultDisplayPolicy.isScreenOnEarly() && !mDefaultDisplayPolicy.isScreenOnFully()) {
             Slog.i(TAG, "Suppressed redundant power key press while "
@@ -1176,6 +1048,7 @@
 
     private void powerLongPress(long eventTime) {
         final int behavior = getResolvedLongPressOnPowerBehavior();
+
         switch (behavior) {
             case LONG_PRESS_POWER_NOTHING:
                 break;
@@ -1183,7 +1056,7 @@
                 mPowerKeyHandled = true;
                 performHapticFeedback(HapticFeedbackConstants.LONG_PRESS, false,
                         "Power - Long Press - Global Actions");
-                showGlobalActionsInternal();
+                showGlobalActions();
                 break;
             case LONG_PRESS_POWER_SHUT_OFF:
             case LONG_PRESS_POWER_SHUT_OFF_NO_CONFIRM:
@@ -1214,14 +1087,14 @@
 
     private void powerVeryLongPress() {
         switch (mVeryLongPressOnPowerBehavior) {
-        case VERY_LONG_PRESS_POWER_NOTHING:
-            break;
-        case VERY_LONG_PRESS_POWER_GLOBAL_ACTIONS:
-            mPowerKeyHandled = true;
-            performHapticFeedback(HapticFeedbackConstants.LONG_PRESS, false,
-                    "Power - Very Long Press - Show Global Actions");
-            showGlobalActionsInternal();
-            break;
+            case VERY_LONG_PRESS_POWER_NOTHING:
+                break;
+            case VERY_LONG_PRESS_POWER_GLOBAL_ACTIONS:
+                mPowerKeyHandled = true;
+                performHapticFeedback(HapticFeedbackConstants.LONG_PRESS, false,
+                        "Power - Very Long Press - Show Global Actions");
+                showGlobalActions();
+                break;
         }
     }
 
@@ -1814,8 +1687,6 @@
                 com.android.internal.R.integer.config_triplePressOnPowerBehavior);
         mShortPressOnSleepBehavior = mContext.getResources().getInteger(
                 com.android.internal.R.integer.config_shortPressOnSleepBehavior);
-        mVeryLongPressTimeout = mContext.getResources().getInteger(
-                com.android.internal.R.integer.config_veryLongPressTimeout);
         mAllowStartActivityForLongPressOnPowerDuringSetup = mContext.getResources().getBoolean(
                 com.android.internal.R.bool.config_allowStartActivityForLongPressOnPowerInSetup);
 
@@ -1909,6 +1780,7 @@
                     }
                 });
         initKeyCombinationRules();
+        initSingleKeyGestureRules();
     }
 
     private void initKeyCombinationRules() {
@@ -1921,7 +1793,7 @@
                     new TwoKeysCombinationRule(KEYCODE_VOLUME_DOWN, KEYCODE_POWER) {
                         @Override
                         void execute() {
-                            cancelPendingPowerKeyAction();
+                            mPowerKeyHandled = true;
                             interceptScreenshotChord();
                         }
                         @Override
@@ -1956,7 +1828,7 @@
                     }
                     @Override
                     void execute() {
-                        cancelPendingPowerKeyAction();
+                        mPowerKeyHandled = true;
                         interceptRingerToggleChord();
                     }
                     @Override
@@ -1970,7 +1842,7 @@
                     new TwoKeysCombinationRule(KEYCODE_BACK, KEYCODE_DPAD_DOWN) {
                         @Override
                         void execute() {
-                            cancelPendingBackKeyAction();
+                            mBackKeyHandled = true;
                             interceptAccessibilityGestureTv();
                         }
 
@@ -1984,7 +1856,7 @@
                     new TwoKeysCombinationRule(KEYCODE_DPAD_CENTER, KEYCODE_BACK) {
                         @Override
                         void execute() {
-                            cancelPendingBackKeyAction();
+                            mBackKeyHandled = true;
                             interceptBugreportGestureTv();
                         }
 
@@ -1997,6 +1869,84 @@
     }
 
     /**
+     * Rule for single power key gesture.
+     */
+    private final class PowerKeyRule extends SingleKeyGestureDetector.SingleKeyRule {
+        PowerKeyRule(int gestures) {
+            super(KEYCODE_POWER, gestures);
+        }
+
+        @Override
+        int getMaxMultiPressCount() {
+            return getMaxMultiPressPowerCount();
+        }
+
+        @Override
+        void onPress(long downTime) {
+            powerPress(downTime, true, 1 /*count*/);
+            finishPowerKeyPress();
+        }
+
+        @Override
+        void onLongPress(long eventTime) {
+            powerLongPress(eventTime);
+        }
+
+        @Override
+        void onVeryLongPress(long eventTime) {
+            mActivityManagerInternal.prepareForPossibleShutdown();
+            powerVeryLongPress();
+        }
+
+        @Override
+        void onMultiPress(long downTime, int count) {
+            powerPress(downTime, true, count);
+            finishPowerKeyPress();
+        }
+    }
+
+    /**
+     * Rule for single back key gesture.
+     */
+    private final class BackKeyRule extends SingleKeyGestureDetector.SingleKeyRule {
+        BackKeyRule(int gestures) {
+            super(KEYCODE_BACK, gestures);
+        }
+
+        @Override
+        int getMaxMultiPressCount() {
+            return 1;
+        }
+
+        @Override
+        void onPress(long downTime) {
+            mBackKeyHandled |= backKeyPress();
+        }
+
+        @Override
+        void onLongPress(long downTime) {
+            backLongPress();
+        }
+    }
+
+    private void initSingleKeyGestureRules() {
+        mSingleKeyGestureDetector = new SingleKeyGestureDetector(mContext);
+
+        int powerKeyGestures = 0;
+        if (hasVeryLongPressOnPowerBehavior()) {
+            powerKeyGestures |= KEY_VERYLONGPRESS;
+        }
+        if (hasLongPressOnPowerBehavior()) {
+            powerKeyGestures |= KEY_LONGPRESS;
+        }
+        mSingleKeyGestureDetector.addRule(new PowerKeyRule(powerKeyGestures));
+
+        if (hasLongPressOnBackBehavior()) {
+            mSingleKeyGestureDetector.addRule(new BackKeyRule(KEY_LONGPRESS));
+        }
+    }
+
+    /**
      * Read values from config.xml that may be overridden depending on
      * the configuration of the device.
      * eg. Disable long press on home goes to recents on sw600dp.
@@ -3427,8 +3377,21 @@
             return result;
         }
 
+        // Alternate TV power to power key for Android TV device.
+        final HdmiControlManager hdmiControlManager = getHdmiControlManager();
+        if (keyCode == KeyEvent.KEYCODE_TV_POWER && mHasFeatureLeanback
+                && (hdmiControlManager == null || !hdmiControlManager.shouldHandleTvPowerKey())) {
+            event = KeyEvent.obtain(
+                    event.getDownTime(), event.getEventTime(),
+                    event.getAction(), KeyEvent.KEYCODE_POWER,
+                    event.getRepeatCount(), event.getMetaState(),
+                    event.getDeviceId(), event.getScanCode(),
+                    event.getFlags(), event.getSource(), event.getDisplayId(), null);
+            return interceptKeyBeforeQueueing(event, policyFlags);
+        }
+
         if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) {
-            mKeyCombinationManager.interceptKey(event, interactive);
+            handleKeyGesture(event, interactive);
         }
 
         // Enable haptics if down and virtual key without multiple repetitions. If this is a hard
@@ -3443,12 +3406,13 @@
         switch (keyCode) {
             case KeyEvent.KEYCODE_BACK: {
                 if (down) {
-                    interceptBackKeyDown();
+                    mBackKeyHandled = false;
                 } else {
-                    boolean handled = interceptBackKeyUp(event);
-
+                    if (!hasLongPressOnBackBehavior()) {
+                        mBackKeyHandled |= backKeyPress();
+                    }
                     // Don't pass back press to app if we've already handled it via long press
-                    if (handled) {
+                    if (mBackKeyHandled) {
                         result &= ~ACTION_PASS_TO_USER;
                     }
                 }
@@ -3560,33 +3524,17 @@
             case KeyEvent.KEYCODE_TV_POWER: {
                 result &= ~ACTION_PASS_TO_USER;
                 isWakeKey = false; // wake-up will be handled separately
-                HdmiControlManager hdmiControlManager = getHdmiControlManager();
-                if (hdmiControlManager != null && hdmiControlManager.shouldHandleTvPowerKey()) {
-                    if (down) {
-                        hdmiControlManager.toggleAndFollowTvPower();
-                    }
-                } else if (mHasFeatureLeanback) {
-                    KeyEvent fallbackEvent = KeyEvent.obtain(
-                            event.getDownTime(), event.getEventTime(),
-                            event.getAction(), KeyEvent.KEYCODE_POWER,
-                            event.getRepeatCount(), event.getMetaState(),
-                            event.getDeviceId(), event.getScanCode(),
-                            event.getFlags(), event.getSource(), event.getDisplayId(), null);
-                    if (down) {
-                        interceptPowerKeyDown(fallbackEvent, interactive);
-                    } else {
-                        interceptPowerKeyUp(fallbackEvent, interactive, canceled);
-                    }
+                if (down && hdmiControlManager != null) {
+                    hdmiControlManager.toggleAndFollowTvPower();
                 }
-                // Ignore this key for any device that is not connected to a TV via HDMI and
-                // not an Android TV device.
                 break;
             }
 
             case KeyEvent.KEYCODE_POWER: {
                 EventLogTags.writeInterceptPower(
                         KeyEvent.actionToString(event.getAction()),
-                        mPowerKeyHandled ? 1 : 0, mPowerKeyPressCounter);
+                        mPowerKeyHandled ? 1 : 0,
+                        mSingleKeyGestureDetector.getKeyPressCounter(KeyEvent.KEYCODE_POWER));
                 // Any activity on the power button stops the accessibility shortcut
                 result &= ~ACTION_PASS_TO_USER;
                 isWakeKey = false; // wake-up will be handled separately
@@ -3767,6 +3715,43 @@
         return result;
     }
 
+    private void handleKeyGesture(KeyEvent event, boolean interactive) {
+        if (mKeyCombinationManager.interceptKey(event, interactive)) {
+            // handled by combo keys manager.
+            mSingleKeyGestureDetector.reset();
+            return;
+        }
+
+        if (event.getKeyCode() == KEYCODE_POWER && event.getAction() == KeyEvent.ACTION_DOWN) {
+            mPowerKeyHandled = handleCameraGesture(event, interactive);
+            if (mPowerKeyHandled) {
+                // handled by camera gesture.
+                mSingleKeyGestureDetector.reset();
+                return;
+            }
+        }
+
+        mSingleKeyGestureDetector.interceptKey(event);
+    }
+
+    // The camera gesture will be detected by GestureLauncherService.
+    private boolean handleCameraGesture(KeyEvent event, boolean interactive) {
+        // camera gesture.
+        GestureLauncherService gestureService = LocalServices.getService(
+                GestureLauncherService.class);
+        if (gestureService == null) {
+            return false;
+        }
+
+        final MutableBoolean outLaunched = new MutableBoolean(false);
+        final boolean gesturedServiceIntercepted = gestureService.interceptPowerKeyDown(event,
+                interactive, outLaunched);
+        if (outLaunched.value && mRequestedOrGoingToSleep) {
+            mCameraGestureTriggeredDuringGoingToSleep = true;
+        }
+        return gesturedServiceIntercepted;
+    }
+
     /**
      * Handle statusbar expansion events.
      * @param event
@@ -4766,15 +4751,6 @@
         }
     }
 
-    private void schedulePossibleVeryLongPressReboot() {
-        mHandler.removeCallbacks(mPossibleVeryLongPressReboot);
-        mHandler.postDelayed(mPossibleVeryLongPressReboot, mVeryLongPressTimeout);
-    }
-
-    private void cancelPossibleVeryLongPressReboot() {
-        mHandler.removeCallbacks(mPossibleVeryLongPressReboot);
-    }
-
     // TODO (multidisplay): Support multiple displays in WindowManagerPolicy.
     private void updateScreenOffSleepToken(boolean acquire) {
         if (acquire) {
diff --git a/services/core/java/com/android/server/policy/SingleKeyGestureDetector.java b/services/core/java/com/android/server/policy/SingleKeyGestureDetector.java
new file mode 100644
index 0000000..cae2093
--- /dev/null
+++ b/services/core/java/com/android/server/policy/SingleKeyGestureDetector.java
@@ -0,0 +1,362 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.policy;
+
+import android.annotation.IntDef;
+import android.content.Context;
+import android.os.Handler;
+import android.os.Looper;
+import android.os.Message;
+import android.util.Log;
+import android.view.KeyEvent;
+import android.view.ViewConfiguration;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.util.ArrayList;
+
+/**
+ * Detect single key gesture: press, long press, very long press and multi press.
+ *
+ * Call {@link #reset} if current {@link KeyEvent} has been handled by another policy
+ */
+
+public final class SingleKeyGestureDetector {
+    private static final String TAG = "SingleKeyGesture";
+    private static final boolean DEBUG = false;
+
+    private static final int MSG_KEY_LONG_PRESS = 0;
+    private static final int MSG_KEY_VERY_LONG_PRESS = 1;
+    private static final int MSG_KEY_DELAYED_PRESS = 2;
+
+    private final long mLongPressTimeout;
+    private final long mVeryLongPressTimeout;
+
+    private volatile int mKeyPressCounter;
+
+    private final ArrayList<SingleKeyRule> mRules = new ArrayList();
+    private SingleKeyRule mActiveRule = null;
+
+    // Key code of current key down event, reset when key up.
+    private int mDownKeyCode = KeyEvent.KEYCODE_UNKNOWN;
+    private volatile boolean mHandledByLongPress = false;
+    private final Handler mHandler;
+    private static final long MULTI_PRESS_TIMEOUT = ViewConfiguration.getMultiPressTimeout();
+
+
+    /** Supported gesture flags */
+    public static final int KEY_LONGPRESS = 1 << 1;
+    public static final int KEY_VERYLONGPRESS = 1 << 2;
+
+    /** @hide */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef(prefix = { "KEY_" }, value = {
+            KEY_LONGPRESS,
+            KEY_VERYLONGPRESS,
+    })
+    public @interface KeyGestureFlag {}
+
+    /**
+     *  Rule definition for single keys gesture.
+     *  E.g : define power key.
+     *  <pre class="prettyprint">
+     *  SingleKeyRule rule =
+     *      new SingleKeyRule(KEYCODE_POWER, KEY_LONGPRESS|KEY_VERYLONGPRESS) {
+     *           int getMaxMultiPressCount() { // maximum multi press count. }
+     *           void onPress(long downTime) { // short press behavior. }
+     *           void onLongPress(long eventTime) { // long press behavior. }
+     *           void onVeryLongPress(long eventTime) { // very long press behavior. }
+     *           void onMultiPress(long downTime, int count) { // multi press behavior.  }
+     *       };
+     *  </pre>
+     */
+    abstract static class SingleKeyRule {
+        private final int mKeyCode;
+        private final int mSupportedGestures;
+
+        SingleKeyRule(int keyCode, @KeyGestureFlag int supportedGestures) {
+            mKeyCode = keyCode;
+            mSupportedGestures = supportedGestures;
+        }
+
+        /**
+         *  True if the rule could intercept the key.
+         */
+        private boolean shouldInterceptKey(int keyCode) {
+            return keyCode == mKeyCode;
+        }
+
+        /**
+         *  True if the rule support long press.
+         */
+        private boolean supportLongPress() {
+            return (mSupportedGestures & KEY_LONGPRESS) != 0;
+        }
+
+        /**
+         *  True if the rule support very long press.
+         */
+        private boolean supportVeryLongPress() {
+            return (mSupportedGestures & KEY_VERYLONGPRESS) != 0;
+        }
+
+        /**
+         *  Maximum count of multi presses.
+         *  Return 1 will trigger onPress immediately when {@link KeyEvent.ACTION_UP}.
+         *  Otherwise trigger onMultiPress immediately when reach max count when
+         *  {@link KeyEvent.ACTION_DOWN}.
+         */
+        int getMaxMultiPressCount() {
+            return 1;
+        }
+
+        /**
+         *  Called when short press has been detected.
+         */
+        abstract void onPress(long downTime);
+        /**
+         *  Callback when multi press (>= 2) has been detected.
+         */
+        void onMultiPress(long downTime, int count) {}
+        /**
+         *  Callback when long press has been detected.
+         */
+        void onLongPress(long eventTime) {}
+        /**
+         *  Callback when very long press has been detected.
+         */
+        void onVeryLongPress(long eventTime) {}
+
+        @Override
+        public String toString() {
+            return "KeyCode = " + KeyEvent.keyCodeToString(mKeyCode)
+                    + ", long press : " + supportLongPress()
+                    + ", very Long press : " + supportVeryLongPress()
+                    + ", max multi press count : " + getMaxMultiPressCount();
+        }
+    }
+
+    public SingleKeyGestureDetector(Context context) {
+        mLongPressTimeout = ViewConfiguration.get(context).getDeviceGlobalActionKeyTimeout();
+        mVeryLongPressTimeout = context.getResources().getInteger(
+                com.android.internal.R.integer.config_veryLongPressTimeout);
+        mHandler = new KeyHandler();
+    }
+
+    void addRule(SingleKeyRule rule) {
+        mRules.add(rule);
+    }
+
+    void interceptKey(KeyEvent event) {
+        if (event.getAction() == KeyEvent.ACTION_DOWN) {
+            interceptKeyDown(event);
+        } else {
+            interceptKeyUp(event);
+        }
+    }
+
+    private void interceptKeyDown(KeyEvent event) {
+        final int keyCode = event.getKeyCode();
+        // same key down.
+        if (mDownKeyCode == keyCode) {
+            if (mActiveRule != null && (event.getFlags() & KeyEvent.FLAG_LONG_PRESS) != 0
+                    && mActiveRule.supportLongPress() && !mHandledByLongPress) {
+                if (DEBUG) {
+                    Log.i(TAG, "Long press key " + KeyEvent.keyCodeToString(keyCode));
+                }
+                mHandledByLongPress = true;
+                mHandler.removeMessages(MSG_KEY_LONG_PRESS);
+                mHandler.removeMessages(MSG_KEY_VERY_LONG_PRESS);
+                mActiveRule.onLongPress(event.getEventTime());
+            }
+            return;
+        }
+
+        // When a different key is pressed, stop processing gestures for the currently active key.
+        if (mDownKeyCode != KeyEvent.KEYCODE_UNKNOWN
+                || (mActiveRule != null && !mActiveRule.shouldInterceptKey(keyCode))) {
+            if (DEBUG) {
+                Log.i(TAG, "Press another key " + KeyEvent.keyCodeToString(keyCode));
+            }
+            reset();
+        }
+        mDownKeyCode = keyCode;
+
+        // Picks a new rule, return if no rule picked.
+        if (mActiveRule == null) {
+            final int count = mRules.size();
+            for (int index = 0; index < count; index++) {
+                final SingleKeyRule rule = mRules.get(index);
+                if (rule.shouldInterceptKey(keyCode)) {
+                    if (DEBUG) {
+                        Log.i(TAG, "Intercept key by rule " + rule);
+                    }
+                    mActiveRule = rule;
+                    break;
+                }
+            }
+        }
+        if (mActiveRule == null) {
+            return;
+        }
+
+        final long eventTime = event.getEventTime();
+        if (mKeyPressCounter == 0) {
+            if (mActiveRule.supportLongPress()) {
+                final Message msg = mHandler.obtainMessage(MSG_KEY_LONG_PRESS, keyCode, 0,
+                        eventTime);
+                msg.setAsynchronous(true);
+                mHandler.sendMessageDelayed(msg, mLongPressTimeout);
+            }
+
+            if (mActiveRule.supportVeryLongPress()) {
+                final Message msg = mHandler.obtainMessage(MSG_KEY_VERY_LONG_PRESS, keyCode, 0,
+                        eventTime);
+                msg.setAsynchronous(true);
+                mHandler.sendMessageDelayed(msg, mVeryLongPressTimeout);
+            }
+        } else {
+            mHandler.removeMessages(MSG_KEY_LONG_PRESS);
+            mHandler.removeMessages(MSG_KEY_VERY_LONG_PRESS);
+            mHandler.removeMessages(MSG_KEY_DELAYED_PRESS);
+
+            // Trigger multi press immediately when reach max count.( > 1)
+            if (mKeyPressCounter == mActiveRule.getMaxMultiPressCount() - 1) {
+                if (DEBUG) {
+                    Log.i(TAG, "Trigger multi press " + mActiveRule.toString() + " for it"
+                            + " reach the max count " + mKeyPressCounter);
+                }
+                mActiveRule.onMultiPress(eventTime, mKeyPressCounter + 1);
+                mKeyPressCounter = 0;
+            }
+        }
+    }
+
+    private boolean interceptKeyUp(KeyEvent event) {
+        mHandler.removeMessages(MSG_KEY_LONG_PRESS);
+        mHandler.removeMessages(MSG_KEY_VERY_LONG_PRESS);
+        mDownKeyCode = KeyEvent.KEYCODE_UNKNOWN;
+        if (mActiveRule == null) {
+            return false;
+        }
+
+        if (mHandledByLongPress) {
+            mHandledByLongPress = false;
+            mKeyPressCounter = 0;
+            return true;
+        }
+
+        final long downTime = event.getDownTime();
+        if (event.getKeyCode() == mActiveRule.mKeyCode) {
+            // Directly trigger short press when max count is 1.
+            if (mActiveRule.getMaxMultiPressCount() == 1) {
+                if (DEBUG) {
+                    Log.i(TAG, "press key " + KeyEvent.keyCodeToString(event.getKeyCode()));
+                }
+                mActiveRule.onPress(downTime);
+                return true;
+            }
+
+            // This could be a multi-press.  Wait a little bit longer to confirm.
+            mKeyPressCounter++;
+            Message msg = mHandler.obtainMessage(MSG_KEY_DELAYED_PRESS, mActiveRule.mKeyCode,
+                    mKeyPressCounter, downTime);
+            msg.setAsynchronous(true);
+            mHandler.sendMessageDelayed(msg, MULTI_PRESS_TIMEOUT);
+            return true;
+        }
+        reset();
+        return false;
+    }
+
+    int getKeyPressCounter(int keyCode) {
+        if (mActiveRule != null && mActiveRule.mKeyCode == keyCode) {
+            return mKeyPressCounter;
+        } else {
+            return 0;
+        }
+    }
+
+    void reset() {
+        if (mActiveRule != null) {
+            if (mDownKeyCode != KeyEvent.KEYCODE_UNKNOWN) {
+                mHandler.removeMessages(MSG_KEY_LONG_PRESS);
+                mHandler.removeMessages(MSG_KEY_VERY_LONG_PRESS);
+            }
+
+            if (mKeyPressCounter > 0) {
+                mHandler.removeMessages(MSG_KEY_DELAYED_PRESS);
+                mKeyPressCounter = 0;
+            }
+            mActiveRule = null;
+        }
+
+        mHandledByLongPress = false;
+        mDownKeyCode = KeyEvent.KEYCODE_UNKNOWN;
+    }
+
+    boolean isKeyIntercepted(int keyCode) {
+        if (mActiveRule != null && mActiveRule.shouldInterceptKey(keyCode)) {
+            return mHandledByLongPress;
+        }
+        return false;
+    }
+
+    private class KeyHandler extends Handler {
+        KeyHandler() {
+            super(Looper.getMainLooper());
+        }
+
+        @Override
+        public void handleMessage(Message msg) {
+            if (mActiveRule == null) {
+                return;
+            }
+            final int keyCode = msg.arg1;
+            final long eventTime = (long) msg.obj;
+            switch(msg.what) {
+                case MSG_KEY_LONG_PRESS:
+                    if (DEBUG) {
+                        Log.i(TAG, "Detect long press " + KeyEvent.keyCodeToString(keyCode));
+                    }
+                    mHandledByLongPress = true;
+                    mActiveRule.onLongPress(eventTime);
+                    break;
+                case MSG_KEY_VERY_LONG_PRESS:
+                    if (DEBUG) {
+                        Log.i(TAG, "Detect very long press "
+                                + KeyEvent.keyCodeToString(keyCode));
+                    }
+                    mHandledByLongPress = true;
+                    mActiveRule.onVeryLongPress(eventTime);
+                    break;
+                case MSG_KEY_DELAYED_PRESS:
+                    if (DEBUG) {
+                        Log.i(TAG, "Detect press " + KeyEvent.keyCodeToString(keyCode)
+                                + ", count " + mKeyPressCounter);
+                    }
+                    if (mKeyPressCounter == 1) {
+                        mActiveRule.onPress(eventTime);
+                    } else {
+                        mActiveRule.onMultiPress(eventTime, mKeyPressCounter);
+                    }
+                    mKeyPressCounter = 0;
+                    break;
+            }
+        }
+    }
+}
diff --git a/services/core/java/com/android/server/power/PowerManagerService.java b/services/core/java/com/android/server/power/PowerManagerService.java
index bc11709..29adde3 100644
--- a/services/core/java/com/android/server/power/PowerManagerService.java
+++ b/services/core/java/com/android/server/power/PowerManagerService.java
@@ -5073,7 +5073,7 @@
         }
 
         @Override // Binder call
-        public void userActivity(long eventTime, int event, int flags) {
+        public void userActivity(int displayId, long eventTime, int event, int flags) {
             final long now = mClock.uptimeMillis();
             if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER)
                     != PackageManager.PERMISSION_GRANTED
diff --git a/services/core/java/com/android/server/vibrator/VibratorController.java b/services/core/java/com/android/server/vibrator/VibratorController.java
index 95f6059..eaba083 100644
--- a/services/core/java/com/android/server/vibrator/VibratorController.java
+++ b/services/core/java/com/android/server/vibrator/VibratorController.java
@@ -87,8 +87,8 @@
     static native long vibratorPerformEffect(
             long nativePtr, long effect, long strength, long vibrationId);
 
-    static native void vibratorPerformComposedEffect(long nativePtr,
-            VibrationEffect.Composition.PrimitiveEffect[] effect, long vibrationId);
+    static native long vibratorPerformComposedEffect(
+            long nativePtr, VibrationEffect.Composition.PrimitiveEffect[] effect, long vibrationId);
 
     static native void vibratorSetExternalControl(long nativePtr, boolean enabled);
 
@@ -269,13 +269,9 @@
             VibrationEffect.Composition.PrimitiveEffect[] primitives =
                     effect.getPrimitiveEffects().toArray(
                             new VibrationEffect.Composition.PrimitiveEffect[0]);
-            mNativeWrapper.compose(primitives, vibrationId);
-            notifyVibratorOnLocked();
-            // Compose don't actually give us an estimated duration, so we just guess here.
-            long duration = 0;
-            for (VibrationEffect.Composition.PrimitiveEffect primitive : primitives) {
-                // TODO(b/177807015): use exposed durations from IVibrator here instead
-                duration += 20 + primitive.delay;
+            long duration = mNativeWrapper.compose(primitives, vibrationId);
+            if (duration > 0) {
+                notifyVibratorOnLocked();
             }
             return duration;
         }
@@ -393,9 +389,9 @@
         }
 
         /** Turns vibrator on to perform one of the supported composed effects. */
-        public void compose(
+        public long compose(
                 VibrationEffect.Composition.PrimitiveEffect[] effect, long vibrationId) {
-            VibratorController.vibratorPerformComposedEffect(mNativePtr, effect,
+            return VibratorController.vibratorPerformComposedEffect(mNativePtr, effect,
                     vibrationId);
         }
 
diff --git a/services/core/java/com/android/server/wm/ActivityRecord.java b/services/core/java/com/android/server/wm/ActivityRecord.java
index 5562580..77c369f 100644
--- a/services/core/java/com/android/server/wm/ActivityRecord.java
+++ b/services/core/java/com/android/server/wm/ActivityRecord.java
@@ -908,7 +908,7 @@
                         pw.print(Integer.toHexString(taskDescription.getStatusBarColor()));
                         pw.print(" navigationBarColor=");
                         pw.println(Integer.toHexString(taskDescription.getNavigationBarColor()));
-                        pw.print(" backgroundColorFloating=");
+                        pw.print(prefix); pw.print(" backgroundColorFloating=");
                         pw.println(Integer.toHexString(
                                 taskDescription.getBackgroundColorFloating()));
             }
diff --git a/services/core/java/com/android/server/wm/ActivityTaskSupervisor.java b/services/core/java/com/android/server/wm/ActivityTaskSupervisor.java
index bb0f1f0..db751e9 100644
--- a/services/core/java/com/android/server/wm/ActivityTaskSupervisor.java
+++ b/services/core/java/com/android/server/wm/ActivityTaskSupervisor.java
@@ -1504,7 +1504,13 @@
             // Prevent recursion.
             return;
         }
-        mService.getTransitionController().requestTransitionIfNeeded(TRANSIT_CLOSE, task);
+        if (task.isVisible()) {
+            mService.getTransitionController().requestTransitionIfNeeded(TRANSIT_CLOSE, task);
+        } else {
+            // Removing a non-visible task doesn't require a transition, but if there is one
+            // collecting, this should be a member just in case.
+            mService.getTransitionController().collect(task);
+        }
         task.mInRemoveTask = true;
         try {
             task.performClearTask(reason);
diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index 168ab43f..119ffb7 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -5262,13 +5262,6 @@
                 || windowingMode == WINDOWING_MODE_MULTI_WINDOW);
     }
 
-    static boolean canReuseExistingTask(int windowingMode, int activityType) {
-        // Existing Tasks can be reused if a new root task will be created anyway, or for the
-        // Dream - because there can only ever be one DreamActivity.
-        return alwaysCreateRootTask(windowingMode, activityType)
-                || activityType == ACTIVITY_TYPE_DREAM;
-    }
-
     @Nullable
     Task getFocusedRootTask() {
         return getItemFromTaskDisplayAreas(TaskDisplayArea::getFocusedRootTask);
diff --git a/services/core/java/com/android/server/wm/Task.java b/services/core/java/com/android/server/wm/Task.java
index 5efbb09..ea9f2c0 100644
--- a/services/core/java/com/android/server/wm/Task.java
+++ b/services/core/java/com/android/server/wm/Task.java
@@ -21,6 +21,7 @@
 import static android.app.ActivityTaskManager.RESIZE_MODE_SYSTEM_SCREEN_ROTATION;
 import static android.app.ITaskStackListener.FORCED_RESIZEABLE_REASON_SPLIT_SCREEN;
 import static android.app.WindowConfiguration.ACTIVITY_TYPE_ASSISTANT;
+import static android.app.WindowConfiguration.ACTIVITY_TYPE_DREAM;
 import static android.app.WindowConfiguration.ACTIVITY_TYPE_HOME;
 import static android.app.WindowConfiguration.ACTIVITY_TYPE_RECENTS;
 import static android.app.WindowConfiguration.ACTIVITY_TYPE_STANDARD;
@@ -3625,7 +3626,6 @@
 
     @Override
     void resetSurfacePositionForAnimationLeash(SurfaceControl.Transaction t) {
-        if (isOrganized()) return;
         super.resetSurfacePositionForAnimationLeash(t);
     }
 
@@ -7349,6 +7349,7 @@
         return reuseOrCreateTask(info, intent, null /*voiceSession*/, null /*voiceInteractor*/,
                 toTop, null /*activity*/, null /*source*/, null /*options*/);
     }
+
     // TODO: Can be removed once we change callpoints creating root tasks to be creating tasks.
     /** Either returns this current task to be re-used or creates a new child task. */
     Task reuseOrCreateTask(ActivityInfo info, Intent intent, IVoiceInteractionSession voiceSession,
@@ -7356,7 +7357,7 @@
             ActivityRecord source, ActivityOptions options) {
 
         Task task;
-        if (DisplayContent.canReuseExistingTask(getWindowingMode(), getActivityType())) {
+        if (canReuseAsLeafTask()) {
             // This root task will only contain one task, so just return itself since all root
             // tasks ara now tasks and all tasks are now root tasks.
             task = reuseAsLeafTask(voiceSession, voiceInteractor, intent, info, activity);
@@ -7391,10 +7392,24 @@
         return task;
     }
 
+    /** Return {@code true} if this task can be reused as leaf task. */
+    private boolean canReuseAsLeafTask() {
+        // Cannot be reused as leaf task if this task is created by organizer or having child tasks.
+        if (mCreatedByOrganizer || !isLeafTask()) {
+            return false;
+        }
+
+        // Existing Tasks can be reused if a new root task will be created anyway, or for the
+        // Dream - because there can only ever be one DreamActivity.
+        final int windowingMode = getWindowingMode();
+        final int activityType = getActivityType();
+        return DisplayContent.alwaysCreateRootTask(windowingMode, activityType)
+                || activityType == ACTIVITY_TYPE_DREAM;
+    }
+
     void addChild(WindowContainer child, final boolean toTop, boolean showForAllUsers) {
         Task task = child.asTask();
         try {
-
             if (task != null) {
                 task.setForceShowForAllUsers(showForAllUsers);
             }
diff --git a/services/core/java/com/android/server/wm/Transition.java b/services/core/java/com/android/server/wm/Transition.java
index ee4c66d..aadb272 100644
--- a/services/core/java/com/android/server/wm/Transition.java
+++ b/services/core/java/com/android/server/wm/Transition.java
@@ -240,16 +240,18 @@
         for (int i = mTargets.size() - 1; i >= 0; --i) {
             final WindowContainer target = mTargets.valueAt(i);
             if (target.getParent() != null) {
+                final SurfaceControl targetLeash = getLeashSurface(target);
+                final SurfaceControl origParent = getOrigParentSurface(target);
                 // Ensure surfaceControls are re-parented back into the hierarchy.
-                t.reparent(target.getSurfaceControl(), target.getParent().getSurfaceControl());
-                t.setLayer(target.getSurfaceControl(), target.getLastLayer());
+                t.reparent(targetLeash, origParent);
+                t.setLayer(targetLeash, target.getLastLayer());
                 // TODO(shell-transitions): Once all remotables have been moved, see if there is
                 //                          a more appropriate place to do the following. This may
                 //                          involve passing an SF transaction from shell on finish.
                 target.getRelativePosition(tmpPos);
-                t.setPosition(target.getSurfaceControl(), tmpPos.x, tmpPos.y);
-                t.setCornerRadius(target.getSurfaceControl(), 0);
-                t.setShadowRadius(target.getSurfaceControl(), 0);
+                t.setPosition(targetLeash, tmpPos.x, tmpPos.y);
+                t.setCornerRadius(targetLeash, 0);
+                t.setShadowRadius(targetLeash, 0);
                 displays.add(target.getDisplayContent());
             }
         }
@@ -465,8 +467,7 @@
                 final int depth = getChildDepth(topTargets.valueAt(j), sibling);
                 if (depth < 0) continue;
                 if (depth == 0) {
-                    final int siblingMode = sibling.isVisibleRequested()
-                            ? TRANSIT_OPEN : TRANSIT_CLOSE;
+                    final int siblingMode = changes.get(sibling).getTransitMode(sibling);
                     ProtoLog.v(ProtoLogGroup.WM_DEBUG_WINDOW_TRANSITIONS,
                             "        sibling is a top target with mode %s",
                             TransitionInfo.modeToString(siblingMode));
@@ -648,6 +649,15 @@
         }
     }
 
+    /** Gets the leash surface for a window container */
+    private static SurfaceControl getLeashSurface(WindowContainer wc) {
+        return wc.getSurfaceControl();
+    }
+
+    private static SurfaceControl getOrigParentSurface(WindowContainer wc) {
+        return wc.getParent().getSurfaceControl();
+    }
+
     /**
      * Construct a TransitionInfo object from a set of targets and changes. Also populates the
      * root surface.
@@ -723,7 +733,7 @@
             final ChangeInfo info = changes.get(target);
             final TransitionInfo.Change change = new TransitionInfo.Change(
                     target.mRemoteToken != null ? target.mRemoteToken.toWindowContainerToken()
-                            : null, target.getSurfaceControl());
+                            : null, getLeashSurface(target));
             // TODO(shell-transitions): Use leash for non-organized windows.
             if (info.mParent != null) {
                 change.setParent(info.mParent.mRemoteToken.toWindowContainerToken());
diff --git a/services/core/java/com/android/server/wm/TransitionController.java b/services/core/java/com/android/server/wm/TransitionController.java
index 5f46ffe..6338f39 100644
--- a/services/core/java/com/android/server/wm/TransitionController.java
+++ b/services/core/java/com/android/server/wm/TransitionController.java
@@ -69,7 +69,7 @@
      * Creates a transition. It can immediately collect participants.
      */
     @NonNull
-    Transition createTransition(@WindowManager.TransitionOldType int type,
+    Transition createTransition(@WindowManager.TransitionType int type,
             @WindowManager.TransitionFlags int flags) {
         if (mTransitionPlayer == null) {
             throw new IllegalStateException("Shell Transitions not enabled");
@@ -113,6 +113,14 @@
     }
 
     /**
+     * @return {@code true} if transition is actively collecting changes and `wc` is one of them.
+     *                      This is {@code false} once a transition is playing.
+     */
+    boolean isCollecting(@NonNull WindowContainer wc) {
+        return mCollectingTransition != null && mCollectingTransition.mParticipants.contains(wc);
+    }
+
+    /**
      * @return {@code true} if transition is actively playing. This is not necessarily {@code true}
      * during collection.
      */
@@ -128,9 +136,7 @@
 
     /** @return {@code true} if wc is in a participant subtree */
     boolean inTransition(@NonNull WindowContainer wc) {
-        if (mCollectingTransition != null && mCollectingTransition.mParticipants.contains(wc)) {
-            return true;
-        }
+        if (isCollecting(wc))  return true;
         for (int i = mPlayingTransitions.size() - 1; i >= 0; --i) {
             for (WindowContainer p = wc; p != null; p = p.getParent()) {
                 if (mPlayingTransitions.get(i).mParticipants.contains(p)) {
diff --git a/services/core/java/com/android/server/wm/WindowState.java b/services/core/java/com/android/server/wm/WindowState.java
index deb3913..1830c07 100644
--- a/services/core/java/com/android/server/wm/WindowState.java
+++ b/services/core/java/com/android/server/wm/WindowState.java
@@ -5205,7 +5205,7 @@
             mIsDimming = true;
             final float dimAmount = (mAttrs.flags & FLAG_DIM_BEHIND) != 0 ? mAttrs.dimAmount : 0;
             final int blurRadius = shouldDrawBlurBehind() ? mAttrs.getBlurBehindRadius() : 0;
-            getDimmer().dimBelow(getSyncTransaction(), this, mAttrs.dimAmount, blurRadius);
+            getDimmer().dimBelow(getSyncTransaction(), this, dimAmount, blurRadius);
         }
     }
 
diff --git a/services/core/jni/com_android_server_pm_PackageManagerShellCommandDataLoader.cpp b/services/core/jni/com_android_server_pm_PackageManagerShellCommandDataLoader.cpp
index 7b78b8d..8efbaf5 100644
--- a/services/core/jni/com_android_server_pm_PackageManagerShellCommandDataLoader.cpp
+++ b/services/core/jni/com_android_server_pm_PackageManagerShellCommandDataLoader.cpp
@@ -39,6 +39,8 @@
 
 #include "dataloader.h"
 
+// #define VERBOSE_READ_LOGS
+
 namespace android {
 
 namespace {
@@ -631,28 +633,65 @@
     };
 
     void onPageReadsWithUid(dataloader::PageReadsWithUid pageReads) final {
+        if (!pageReads.size()) {
+            return;
+        }
+
         auto trace = atrace_is_tag_enabled(ATRACE_TAG);
         if (CC_LIKELY(!trace)) {
             return;
         }
 
         TracedRead last = {};
+        auto lastSerialNo = mLastSerialNo;
         for (auto&& read : pageReads) {
-            if (read.id != last.fileId || read.uid != last.uid ||
-                read.block != last.firstBlockIdx + last.count) {
-                traceRead(last);
-                last = TracedRead{
-                        .timestampUs = read.bootClockTsUs,
-                        .fileId = read.id,
-                        .uid = read.uid,
-                        .firstBlockIdx = (uint32_t)read.block,
-                        .count = 1,
-                };
-            } else {
-                ++last.count;
+            const auto expectedSerialNo = lastSerialNo + last.count;
+#ifdef VERBOSE_READ_LOGS
+            {
+                FileIdx fileIdx = convertFileIdToFileIndex(read.id);
+
+                auto appId = multiuser_get_app_id(read.uid);
+                auto userId = multiuser_get_user_id(read.uid);
+                auto trace = android::base::
+                        StringPrintf("verbose_page_read: serialNo=%lld (expected=%lld) index=%lld "
+                                     "file=%d appid=%d userid=%d",
+                                     static_cast<long long>(read.serialNo),
+                                     static_cast<long long>(expectedSerialNo),
+                                     static_cast<long long>(read.block), static_cast<int>(fileIdx),
+                                     static_cast<int>(appId), static_cast<int>(userId));
+
+                ATRACE_BEGIN(trace.c_str());
+                ATRACE_END();
             }
+#endif // VERBOSE_READ_LOGS
+
+            if (read.serialNo == expectedSerialNo && read.id == last.fileId &&
+                read.uid == last.uid && read.block == last.firstBlockIdx + last.count) {
+                ++last.count;
+                continue;
+            }
+
+            // First, trace the reads.
+            traceRead(last);
+
+            // Second, report missing reads, if any.
+            if (read.serialNo != expectedSerialNo) {
+                const auto readsMissing = read.serialNo - expectedSerialNo;
+                traceMissingReads(readsMissing);
+            }
+
+            last = TracedRead{
+                    .timestampUs = read.bootClockTsUs,
+                    .fileId = read.id,
+                    .uid = read.uid,
+                    .firstBlockIdx = (uint32_t)read.block,
+                    .count = 1,
+            };
+            lastSerialNo = read.serialNo;
         }
+
         traceRead(last);
+        mLastSerialNo = lastSerialNo + last.count;
     }
 
     void traceRead(const TracedRead& read) {
@@ -682,6 +721,13 @@
         ATRACE_END();
     }
 
+    void traceMissingReads(int64_t count) {
+        const auto trace = android::base::StringPrintf("missing_page_reads: count=%lld",
+                                                       static_cast<long long>(count));
+        ATRACE_BEGIN(trace.c_str());
+        ATRACE_END();
+    }
+
     void receiver(unique_fd inout, MetadataMode mode) {
         std::vector<uint8_t> data;
         std::vector<IncFsDataBlock> instructions;
@@ -828,6 +874,7 @@
     std::atomic<bool> mStopReceiving = false;
     std::atomic<bool> mReadLogsEnabled = false;
     std::chrono::milliseconds mWaitOnEofInterval{WaitOnEofMinInterval};
+    int64_t mLastSerialNo{1};
     /** Tracks which files have been requested */
     std::unordered_set<FileIdx> mRequestedFiles;
 };
diff --git a/services/core/jni/com_android_server_vibrator_VibratorController.cpp b/services/core/jni/com_android_server_vibrator_VibratorController.cpp
index 89b931d..ef2d0ba 100644
--- a/services/core/jni/com_android_server_vibrator_VibratorController.cpp
+++ b/services/core/jni/com_android_server_vibrator_VibratorController.cpp
@@ -238,12 +238,12 @@
     return result.isOk() ? result.value().count() : -1;
 }
 
-static void vibratorPerformComposedEffect(JNIEnv* env, jclass /* clazz */, jlong ptr,
-                                          jobjectArray composition, jlong vibrationId) {
+static jlong vibratorPerformComposedEffect(JNIEnv* env, jclass /* clazz */, jlong ptr,
+                                           jobjectArray composition, jlong vibrationId) {
     VibratorControllerWrapper* wrapper = reinterpret_cast<VibratorControllerWrapper*>(ptr);
     if (wrapper == nullptr) {
         ALOGE("vibratorPerformComposedEffect failed because native wrapper was not initialized");
-        return;
+        return -1;
     }
     size_t size = env->GetArrayLength(composition);
     std::vector<aidl::CompositeEffect> effects;
@@ -252,7 +252,8 @@
         effects.push_back(effectFromJavaPrimitive(env, element));
     }
     auto callback = wrapper->createCallback(vibrationId);
-    wrapper->hal()->performComposedEffect(effects, callback);
+    auto result = wrapper->hal()->performComposedEffect(effects, callback);
+    return result.isOk() ? result.value().count() : -1;
 }
 
 static jlong vibratorGetCapabilities(JNIEnv* env, jclass /* clazz */, jlong ptr) {
@@ -296,7 +297,7 @@
         {"vibratorSetAmplitude", "(JI)V", (void*)vibratorSetAmplitude},
         {"vibratorPerformEffect", "(JJJJ)J", (void*)vibratorPerformEffect},
         {"vibratorPerformComposedEffect",
-         "(J[Landroid/os/VibrationEffect$Composition$PrimitiveEffect;J)V",
+         "(J[Landroid/os/VibrationEffect$Composition$PrimitiveEffect;J)J",
          (void*)vibratorPerformComposedEffect},
         {"vibratorGetSupportedEffects", "(J)[I", (void*)vibratorGetSupportedEffects},
         {"vibratorGetSupportedPrimitives", "(J)[I", (void*)vibratorGetSupportedPrimitives},
diff --git a/services/tests/PackageManagerServiceTests/unit/src/com/android/server/pm/test/verify/domain/DomainVerificationPersistenceTest.kt b/services/tests/PackageManagerServiceTests/unit/src/com/android/server/pm/test/verify/domain/DomainVerificationPersistenceTest.kt
index ad9aa7b..6597577 100644
--- a/services/tests/PackageManagerServiceTests/unit/src/com/android/server/pm/test/verify/domain/DomainVerificationPersistenceTest.kt
+++ b/services/tests/PackageManagerServiceTests/unit/src/com/android/server/pm/test/verify/domain/DomainVerificationPersistenceTest.kt
@@ -30,6 +30,7 @@
 import org.junit.Rule
 import org.junit.Test
 import org.junit.rules.TemporaryFolder
+import org.xmlpull.v1.XmlPullParser
 import java.io.File
 import java.nio.charset.StandardCharsets
 import java.util.UUID
@@ -41,21 +42,41 @@
 
         internal fun File.writeXml(block: (serializer: TypedXmlSerializer) -> Unit) = apply {
             outputStream().use {
-                // Explicitly use string based XML so it can printed in the test failure output
-                Xml.newFastSerializer()
+                // This must use the binary serializer the mirror the production behavior, as
+                // there are slight differences with the string based one.
+                Xml.newBinarySerializer()
                     .apply {
                         setOutput(it, StandardCharsets.UTF_8.name())
                         startDocument(null, true)
                         setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true)
+                        // Write a wrapping tag to ensure the domain verification settings didn't
+                        // close out the document, allowing other settings to be written
+                        startTag(null, "wrapper-tag")
                     }
                     .apply(block)
+                    .apply {
+                        startTag(null, "trailing-tag")
+                        endTag(null, "trailing-tag")
+                        endTag(null, "wrapper-tag")
+                    }
                     .endDocument()
             }
         }
 
         internal fun <T> File.readXml(block: (parser: TypedXmlPullParser) -> T) =
             inputStream().use {
-                block(Xml.resolvePullParser(it))
+                val parser = Xml.resolvePullParser(it)
+                assertThat(parser.nextTag()).isEqualTo(XmlPullParser.START_TAG)
+                assertThat(parser.name).isEqualTo("wrapper-tag")
+                assertThat(parser.nextTag()).isEqualTo(XmlPullParser.START_TAG)
+                block(parser).also {
+                    assertThat(parser.nextTag()).isEqualTo(XmlPullParser.START_TAG)
+                    assertThat(parser.name).isEqualTo("trailing-tag")
+                    assertThat(parser.nextTag()).isEqualTo(XmlPullParser.END_TAG)
+                    assertThat(parser.name).isEqualTo("trailing-tag")
+                    assertThat(parser.nextTag()).isEqualTo(XmlPullParser.END_TAG)
+                    assertThat(parser.name).isEqualTo("wrapper-tag")
+                }
             }
     }
 
diff --git a/services/tests/servicestests/src/com/android/server/BootReceiverTest.java b/services/tests/servicestests/src/com/android/server/BootReceiverTest.java
new file mode 100644
index 0000000..489e2f7
--- /dev/null
+++ b/services/tests/servicestests/src/com/android/server/BootReceiverTest.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server;
+
+import android.test.AndroidTestCase;
+
+/**
+ * Tests for {@link com.android.server.BootReceiver}
+ */
+public class BootReceiverTest extends AndroidTestCase {
+    public void testLogLinePotentiallySensitive() throws Exception {
+        /*
+         * Strings to be dropped from the log as potentially sensitive: register dumps, process
+         * names, hardware info.
+         */
+        final String[] becomeNull = {
+            "CPU: 4 PID: 120 Comm: kunit_try_catch Tainted: G        W         5.8.0-rc6+ #7",
+            "Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1 04/01/2014",
+            "[    0.083207] RSP: 0000:ffffffff8fe07ca8 EFLAGS: 00010046 ORIG_RAX: 0000000000000000",
+            "[    0.084709] RAX: 0000000000000000 RBX: ffffffffff240000 RCX: ffffffff815fcf01",
+            "[    0.086109] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffffff240004",
+            "[    0.087509] RBP: ffffffff8fe07d60 R08: fffffbfff1fc0f21 R09: fffffbfff1fc0f21",
+            "[    0.088911] R10: ffffffff8fe07907 R11: fffffbfff1fc0f20 R12: ffffffff8fe07d38",
+            "R13: 0000000000000001 R14: 0000000000000001 R15: ffffffff8fe07e80",
+            "x29: ffff00003ce07150 x28: ffff80001aa29cc0",
+            "x1 : 0000000000000000 x0 : ffff00000f628000",
+        };
+
+        /* Strings to be left unchanged, including non-sensitive registers and parts of reports. */
+        final String[] leftAsIs = {
+            "FS:  0000000000000000(0000) GS:ffffffff92409000(0000) knlGS:0000000000000000",
+            "[ 69.2366] [ T6006]c7   6006  =======================================================",
+            "[ 69.245688] [ T6006] BUG: KFENCE: out-of-bounds in kfence_handle_page_fault",
+            "[ 69.257816] [ T6006]c7   6006  Out-of-bounds access at 0xffffffca75c45000 ",
+            "[ 69.273536] [ T6006]c7   6006   __do_kernel_fault+0xa8/0x11c",
+            "pc : __mutex_lock+0x428/0x99c ",
+            "sp : ffff00003ce07150",
+            "Call trace:",
+            "",
+        };
+
+        final String[][] stripped = {
+            { "Detected corrupted memory at 0xffffffffb6797ff9 [ 0xac . . . . . . ]:",
+              "Detected corrupted memory at 0xffffffffb6797ff9" },
+        };
+        for (int i = 0; i < becomeNull.length; i++) {
+            assertEquals(BootReceiver.stripSensitiveData(becomeNull[i]), null);
+        }
+
+        for (int i = 0; i < leftAsIs.length; i++) {
+            assertEquals(BootReceiver.stripSensitiveData(leftAsIs[i]), leftAsIs[i]);
+        }
+
+        for (int i = 0; i < stripped.length; i++) {
+            assertEquals(BootReceiver.stripSensitiveData(stripped[i][0]), stripped[i][1]);
+        }
+    }
+}
diff --git a/services/tests/servicestests/src/com/android/server/accessibility/AbstractAccessibilityServiceConnectionTest.java b/services/tests/servicestests/src/com/android/server/accessibility/AbstractAccessibilityServiceConnectionTest.java
index f897d5c..d6c11a5 100644
--- a/services/tests/servicestests/src/com/android/server/accessibility/AbstractAccessibilityServiceConnectionTest.java
+++ b/services/tests/servicestests/src/com/android/server/accessibility/AbstractAccessibilityServiceConnectionTest.java
@@ -495,7 +495,8 @@
         mServiceConnection.performAccessibilityAction(PIP_WINDOWID, ROOT_NODE_ID,
                 ACTION_ACCESSIBILITY_FOCUS, null, INTERACTION_ID, mMockCallback, TID);
 
-        verify(mMockIPowerManager).userActivity(anyLong(), anyInt(), anyInt());
+        verify(mMockIPowerManager).userActivity(eq(Display.DEFAULT_DISPLAY), anyLong(), anyInt(),
+                anyInt());
         verify(mMockIA11yInteractionConnection).performAccessibilityAction(eq(ROOT_NODE_ID),
                 eq(ACTION_ACCESSIBILITY_FOCUS), any(), eq(INTERACTION_ID), eq(mMockCallback),
                 anyInt(), eq(PID), eq(TID));
diff --git a/services/tests/servicestests/src/com/android/server/accessibility/AccessibilityInteractionControllerNodeRequestsTest.java b/services/tests/servicestests/src/com/android/server/accessibility/AccessibilityInteractionControllerNodeRequestsTest.java
new file mode 100644
index 0000000..170f561
--- /dev/null
+++ b/services/tests/servicestests/src/com/android/server/accessibility/AccessibilityInteractionControllerNodeRequestsTest.java
@@ -0,0 +1,581 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.accessibility;
+
+
+import static android.view.accessibility.AccessibilityNodeInfo.FLAG_INCLUDE_NOT_IMPORTANT_VIEWS;
+import static android.view.accessibility.AccessibilityNodeInfo.FLAG_PREFETCH_DESCENDANTS;
+import static android.view.accessibility.AccessibilityNodeInfo.FLAG_PREFETCH_SIBLINGS;
+import static android.view.accessibility.AccessibilityNodeInfo.ROOT_NODE_ID;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyList;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.doAnswer;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+import android.app.Instrumentation;
+import android.content.Context;
+import android.os.RemoteException;
+import android.view.AccessibilityInteractionController;
+import android.view.View;
+import android.view.ViewRootImpl;
+import android.view.WindowManager;
+import android.view.accessibility.AccessibilityNodeIdManager;
+import android.view.accessibility.AccessibilityNodeInfo;
+import android.view.accessibility.AccessibilityNodeProvider;
+import android.view.accessibility.IAccessibilityInteractionConnectionCallback;
+import android.widget.FrameLayout;
+import android.widget.TextView;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.runner.AndroidJUnit4;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Captor;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Tests that verify expected node and prefetched node results when finding a view by node id. We
+ * send some requests to the controller via View methods to control message timing.
+ */
+@RunWith(AndroidJUnit4.class)
+public class AccessibilityInteractionControllerNodeRequestsTest {
+    private AccessibilityInteractionController mAccessibilityInteractionController;
+    @Mock
+    private IAccessibilityInteractionConnectionCallback mMockClientCallback1;
+    @Mock
+    private IAccessibilityInteractionConnectionCallback mMockClientCallback2;
+
+    @Captor
+    private ArgumentCaptor<AccessibilityNodeInfo> mFindInfoCaptor;
+    @Captor private ArgumentCaptor<List<AccessibilityNodeInfo>> mPrefetchInfoListCaptor;
+
+    private final Instrumentation mInstrumentation = InstrumentationRegistry.getInstrumentation();
+    private static final int MOCK_CLIENT_1_THREAD_AND_PROCESS_ID = 1;
+    private static final int MOCK_CLIENT_2_THREAD_AND_PROCESS_ID = 2;
+
+    private static final String FRAME_LAYOUT_DESCRIPTION = "frameLayout";
+    private static final String TEXT_VIEW_1_DESCRIPTION = "textView1";
+    private static final String TEXT_VIEW_2_DESCRIPTION = "textView2";
+
+    private TestFrameLayout mFrameLayout;
+    private TestTextView mTextView1;
+    private TestTextView2 mTextView2;
+
+    private boolean mSendClient1RequestForTextAfterTextPrefetched;
+    private boolean mSendClient2RequestForTextAfterTextPrefetched;
+    private boolean mSendRequestForTextAndIncludeUnImportantViews;
+    private int mMockClient1InteractionId;
+    private int mMockClient2InteractionId;
+
+    @Before
+    public void setUp() throws Throwable {
+        MockitoAnnotations.initMocks(this);
+
+        mInstrumentation.runOnMainSync(() -> {
+            final Context context = mInstrumentation.getTargetContext();
+            final ViewRootImpl viewRootImpl = new ViewRootImpl(context, context.getDisplay());
+
+            mFrameLayout = new TestFrameLayout(context);
+            mTextView1 = new TestTextView(context);
+            mTextView2 = new TestTextView2(context);
+
+            mFrameLayout.addView(mTextView1);
+            mFrameLayout.addView(mTextView2);
+
+            // The controller retrieves views through this manager, and registration happens on
+            // when attached to a window, which we don't have. We can simply reference FrameLayout
+            // with ROOT_NODE_ID
+            AccessibilityNodeIdManager.getInstance().registerViewWithId(
+                    mTextView1, mTextView1.getAccessibilityViewId());
+            AccessibilityNodeIdManager.getInstance().registerViewWithId(
+                    mTextView2, mTextView2.getAccessibilityViewId());
+
+            try {
+                viewRootImpl.setView(mFrameLayout, new WindowManager.LayoutParams(), null);
+
+            } catch (WindowManager.BadTokenException e) {
+                // activity isn't running, we will ignore BadTokenException.
+            }
+
+            mAccessibilityInteractionController =
+                    new AccessibilityInteractionController(viewRootImpl);
+        });
+
+    }
+
+    @After
+    public void tearDown() throws Throwable {
+        AccessibilityNodeIdManager.getInstance().unregisterViewWithId(
+                mTextView1.getAccessibilityViewId());
+        AccessibilityNodeIdManager.getInstance().unregisterViewWithId(
+                mTextView2.getAccessibilityViewId());
+    }
+
+    /**
+     * Tests a basic request for the root node with prefetch flag
+     * {@link AccessibilityNodeInfo#FLAG_PREFETCH_DESCENDANTS}
+     *
+     * @throws RemoteException
+     */
+    @Test
+    public void testFindRootView_withOneClient_shouldReturnRootNodeAndPrefetchDescendants()
+            throws RemoteException {
+        // Request for our FrameLayout
+        sendNodeRequestToController(ROOT_NODE_ID, mMockClientCallback1,
+                mMockClient1InteractionId, FLAG_PREFETCH_DESCENDANTS);
+        mInstrumentation.waitForIdleSync();
+
+        // Verify we get FrameLayout
+        verify(mMockClientCallback1).setFindAccessibilityNodeInfoResult(
+                mFindInfoCaptor.capture(), eq(mMockClient1InteractionId));
+        AccessibilityNodeInfo infoSentToService = mFindInfoCaptor.getValue();
+        assertEquals(FRAME_LAYOUT_DESCRIPTION, infoSentToService.getContentDescription());
+
+        verify(mMockClientCallback1).setPrefetchAccessibilityNodeInfoResult(
+                mPrefetchInfoListCaptor.capture(), eq(mMockClient1InteractionId));
+        // The descendants are our two TextViews
+        List<AccessibilityNodeInfo> prefetchedNodes = mPrefetchInfoListCaptor.getValue();
+        assertEquals(2, prefetchedNodes.size());
+        assertEquals(TEXT_VIEW_1_DESCRIPTION, prefetchedNodes.get(0).getContentDescription());
+        assertEquals(TEXT_VIEW_2_DESCRIPTION, prefetchedNodes.get(1).getContentDescription());
+
+    }
+
+    /**
+     * Tests a basic request for TestTextView1's node with prefetch flag
+     * {@link AccessibilityNodeInfo#FLAG_PREFETCH_SIBLINGS}
+     *
+     * @throws RemoteException
+     */
+    @Test
+    public void testFindTextView_withOneClient_shouldReturnNodeAndPrefetchedSiblings()
+            throws RemoteException {
+        // Request for TextView1
+        sendNodeRequestToController(AccessibilityNodeInfo.makeNodeId(
+                mTextView1.getAccessibilityViewId(), AccessibilityNodeProvider.HOST_VIEW_ID),
+                mMockClientCallback1, mMockClient1InteractionId, FLAG_PREFETCH_SIBLINGS);
+        mInstrumentation.waitForIdleSync();
+
+        // Verify we get TextView1
+        verify(mMockClientCallback1).setFindAccessibilityNodeInfoResult(
+                mFindInfoCaptor.capture(), eq(mMockClient1InteractionId));
+        AccessibilityNodeInfo infoSentToService = mFindInfoCaptor.getValue();
+        assertEquals(TEXT_VIEW_1_DESCRIPTION, infoSentToService.getContentDescription());
+
+        // Verify the prefetched sibling of TextView1 is TextView2
+        verify(mMockClientCallback1).setPrefetchAccessibilityNodeInfoResult(
+                mPrefetchInfoListCaptor.capture(), eq(mMockClient1InteractionId));
+        // TextView2 is the prefetched sibling
+        List<AccessibilityNodeInfo> prefetchedNodes = mPrefetchInfoListCaptor.getValue();
+        assertEquals(1, prefetchedNodes.size());
+        assertEquals(TEXT_VIEW_2_DESCRIPTION, prefetchedNodes.get(0).getContentDescription());
+    }
+
+    /**
+     * Tests a series of controller requests to prevent prefetching.
+     *     Request 1: Client 1 requests the root node
+     *     Request 2: When the root node is initialized in
+     *     {@link TestFrameLayout#onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo)},
+     *     Client 2 requests TestTextView1's node
+     *
+     * Request 2 on the queue prevents prefetching for Request 1.
+     *
+     * @throws RemoteException
+     */
+    @Test
+    public void testFindRootAndTextNodes_withTwoClients_shouldPreventClient1Prefetch()
+            throws RemoteException {
+        mFrameLayout.setAccessibilityDelegate(new View.AccessibilityDelegate() {
+            @Override
+            public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
+                super.onInitializeAccessibilityNodeInfo(host, info);
+                final long nodeId = AccessibilityNodeInfo.makeNodeId(
+                        mTextView1.getAccessibilityViewId(),
+                        AccessibilityNodeProvider.HOST_VIEW_ID);
+
+                    // Enqueue a request when this node is found from a different service for
+                    // TextView1
+                    sendNodeRequestToController(nodeId, mMockClientCallback2,
+                            mMockClient2InteractionId, FLAG_PREFETCH_SIBLINGS);
+            }
+        });
+        // Client 1 request for FrameLayout
+        sendNodeRequestToController(ROOT_NODE_ID, mMockClientCallback1,
+                mMockClient1InteractionId, FLAG_PREFETCH_DESCENDANTS);
+
+        mInstrumentation.waitForIdleSync();
+
+        // Verify client 1 gets FrameLayout
+        verify(mMockClientCallback1).setFindAccessibilityNodeInfoResult(
+                mFindInfoCaptor.capture(), eq(mMockClient1InteractionId));
+        AccessibilityNodeInfo infoSentToService = mFindInfoCaptor.getValue();
+        assertEquals(FRAME_LAYOUT_DESCRIPTION, infoSentToService.getContentDescription());
+
+        // The second request is put in the queue in the FrameLayout's onInitializeA11yNodeInfo,
+        // meaning prefetching is interrupted and does not even begin for the first request
+        verify(mMockClientCallback1, never())
+                .setPrefetchAccessibilityNodeInfoResult(anyList(), anyInt());
+
+        // Verify client 2 gets TextView1
+        verify(mMockClientCallback2).setFindAccessibilityNodeInfoResult(
+                mFindInfoCaptor.capture(), eq(mMockClient2InteractionId));
+        infoSentToService = mFindInfoCaptor.getValue();
+        assertEquals(TEXT_VIEW_1_DESCRIPTION, infoSentToService.getContentDescription());
+
+        // Verify the prefetched sibling of TextView1 is TextView2 (FLAG_PREFETCH_SIBLINGS)
+        verify(mMockClientCallback2).setPrefetchAccessibilityNodeInfoResult(
+                mPrefetchInfoListCaptor.capture(), eq(mMockClient2InteractionId));
+        List<AccessibilityNodeInfo> prefetchedNodes = mPrefetchInfoListCaptor.getValue();
+        assertEquals(1, prefetchedNodes.size());
+        assertEquals(TEXT_VIEW_2_DESCRIPTION, prefetchedNodes.get(0).getContentDescription());
+    }
+
+    /**
+     * Tests a series of controller same-service requests to interrupt prefetching and satisfy a
+     * pending node request.
+     *     Request 1: Request the root node
+     *     Request 2: When TextTextView1's node is initialized as part of Request 1's prefetching,
+     *     request TestTextView1's node
+     *
+     * Request 1 prefetches TestTextView1's node, is interrupted by a pending request, and checks
+     * if its prefetched nodes satisfy any pending requests. It satisfies Request 2's request for
+     * TestTextView1's node. Request 2 is fulfilled, so it is removed from queue and does not
+     * prefetch.
+     *
+     * @throws RemoteException
+     */
+    @Test
+    public void testFindRootAndTextNode_withOneClient_shouldInterruptPrefetchAndSatisfyPendingMsg()
+            throws RemoteException {
+        mSendClient1RequestForTextAfterTextPrefetched = true;
+
+        mTextView1.setAccessibilityDelegate(new View.AccessibilityDelegate(){
+            @Override
+            public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
+                super.onInitializeAccessibilityNodeInfo(host, info);
+                info.setContentDescription(TEXT_VIEW_1_DESCRIPTION);
+                final long nodeId = AccessibilityNodeInfo.makeNodeId(
+                        mTextView1.getAccessibilityViewId(),
+                        AccessibilityNodeProvider.HOST_VIEW_ID);
+
+                if (mSendClient1RequestForTextAfterTextPrefetched) {
+                    // Prevent a loop when processing second request
+                    mSendClient1RequestForTextAfterTextPrefetched = false;
+                    // TextView1 is prefetched here after the FrameLayout is found. Now enqueue a
+                    // same-client request for TextView1
+                    sendNodeRequestToController(nodeId, mMockClientCallback1,
+                            ++mMockClient1InteractionId, FLAG_PREFETCH_SIBLINGS);
+
+                }
+            }
+        });
+        // Client 1 requests FrameLayout
+        sendNodeRequestToController(ROOT_NODE_ID, mMockClientCallback1,
+                mMockClient1InteractionId, FLAG_PREFETCH_DESCENDANTS);
+
+        // Flush out all messages
+        mInstrumentation.waitForIdleSync();
+
+        // When TextView1 is prefetched for FrameLayout, we put a message on the queue in
+        // TextView1's onInitializeA11yNodeInfo that requests for TextView1. The service thus get
+        // two node results for FrameLayout and TextView1.
+        verify(mMockClientCallback1, times(2))
+                .setFindAccessibilityNodeInfoResult(mFindInfoCaptor.capture(), anyInt());
+
+        List<AccessibilityNodeInfo> foundNodes = mFindInfoCaptor.getAllValues();
+        assertEquals(FRAME_LAYOUT_DESCRIPTION, foundNodes.get(0).getContentDescription());
+        assertEquals(TEXT_VIEW_1_DESCRIPTION, foundNodes.get(1).getContentDescription());
+
+        // The controller will look at FrameLayout's prefetched nodes and find matching nodes in
+        // pending requests. The prefetched TextView1 matches the second request. The second
+        // request was removed from queue and prefetching for this request never occurred.
+        verify(mMockClientCallback1, times(1))
+                .setPrefetchAccessibilityNodeInfoResult(mPrefetchInfoListCaptor.capture(),
+                        eq(mMockClient1InteractionId - 1));
+        List<AccessibilityNodeInfo> prefetchedNodes = mPrefetchInfoListCaptor.getValue();
+        assertEquals(1, prefetchedNodes.size());
+        assertEquals(TEXT_VIEW_1_DESCRIPTION, prefetchedNodes.get(0).getContentDescription());
+    }
+
+    /**
+     * Like above, but tests a series of controller requests from different services to interrupt
+     * prefetching and satisfy a pending node request.
+     *
+     * @throws RemoteException
+     */
+    @Test
+    public void testFindRootAndTextNode_withTwoClients_shouldInterruptPrefetchAndSatisfyPendingMsg()
+            throws RemoteException {
+        mSendClient2RequestForTextAfterTextPrefetched = true;
+        mTextView1.setAccessibilityDelegate(new View.AccessibilityDelegate(){
+            @Override
+            public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
+                super.onInitializeAccessibilityNodeInfo(host, info);
+                info.setContentDescription(TEXT_VIEW_1_DESCRIPTION);
+                final long nodeId = AccessibilityNodeInfo.makeNodeId(
+                        mTextView1.getAccessibilityViewId(),
+                        AccessibilityNodeProvider.HOST_VIEW_ID);
+
+                if (mSendClient2RequestForTextAfterTextPrefetched) {
+                    mSendClient2RequestForTextAfterTextPrefetched = false;
+                    // TextView1 is prefetched here. Now enqueue client 2's request for
+                    // TextView1
+                    sendNodeRequestToController(nodeId, mMockClientCallback2,
+                            mMockClient2InteractionId, FLAG_PREFETCH_SIBLINGS);
+                }
+            }
+        });
+        // Client 1 requests FrameLayout
+        sendNodeRequestToController(ROOT_NODE_ID, mMockClientCallback1,
+                mMockClient1InteractionId, FLAG_PREFETCH_DESCENDANTS);
+
+        mInstrumentation.waitForIdleSync();
+
+        // Verify client 1 gets FrameLayout
+        verify(mMockClientCallback1, times(1))
+                .setFindAccessibilityNodeInfoResult(mFindInfoCaptor.capture(), anyInt());
+        assertEquals(FRAME_LAYOUT_DESCRIPTION,
+                mFindInfoCaptor.getValue().getContentDescription());
+
+        // Verify client 1 has prefetched nodes
+        verify(mMockClientCallback1, times(1))
+                .setPrefetchAccessibilityNodeInfoResult(mPrefetchInfoListCaptor.capture(),
+                        eq(mMockClient1InteractionId));
+
+        // Verify client 1's only prefetched node is TextView1
+        List<AccessibilityNodeInfo> prefetchedNodes = mPrefetchInfoListCaptor.getValue();
+        assertEquals(1, prefetchedNodes.size());
+        assertEquals(TEXT_VIEW_1_DESCRIPTION, prefetchedNodes.get(0).getContentDescription());
+
+        // Verify client 2 gets TextView1
+        verify(mMockClientCallback2, times(1))
+                .setFindAccessibilityNodeInfoResult(mFindInfoCaptor.capture(), anyInt());
+
+        assertEquals(TEXT_VIEW_1_DESCRIPTION, mFindInfoCaptor.getValue().getContentDescription());
+
+        // The second request was removed from queue and prefetching for this client request never
+        // occurred as it was satisfied.
+        verify(mMockClientCallback2, never())
+                .setPrefetchAccessibilityNodeInfoResult(anyList(), anyInt());
+
+    }
+
+    @Test
+    public void testFindNodeById_withTwoDifferentPrefetchFlags_shouldNotSatisfyPendingRequest()
+            throws RemoteException {
+        mSendRequestForTextAndIncludeUnImportantViews = true;
+        mTextView1.setAccessibilityDelegate(new View.AccessibilityDelegate(){
+            @Override
+            public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
+                super.onInitializeAccessibilityNodeInfo(host, info);
+                info.setContentDescription(TEXT_VIEW_1_DESCRIPTION);
+                final long nodeId = AccessibilityNodeInfo.makeNodeId(
+                        mTextView1.getAccessibilityViewId(),
+                        AccessibilityNodeProvider.HOST_VIEW_ID);
+
+                if (mSendRequestForTextAndIncludeUnImportantViews) {
+                    mSendRequestForTextAndIncludeUnImportantViews = false;
+                    // TextView1 is prefetched here for client 1. Now enqueue a request from a
+                    // different client that holds different fetch flags for TextView1
+                    sendNodeRequestToController(nodeId, mMockClientCallback2,
+                            mMockClient2InteractionId,
+                            FLAG_PREFETCH_SIBLINGS | FLAG_INCLUDE_NOT_IMPORTANT_VIEWS);
+                }
+            }
+        });
+
+        // Mockito does not make copies of objects when called. It holds references, so
+        // the captor would point to client 2's results after all requests are processed. Verify
+        // prefetched node immediately
+        doAnswer(invocation -> {
+            List<AccessibilityNodeInfo> prefetched = invocation.getArgument(0);
+            assertEquals(TEXT_VIEW_1_DESCRIPTION, prefetched.get(0).getContentDescription());
+            return null;
+        }).when(mMockClientCallback1).setPrefetchAccessibilityNodeInfoResult(anyList(),
+                eq(mMockClient1InteractionId));
+
+        // Client 1 requests FrameLayout
+        sendNodeRequestToController(ROOT_NODE_ID, mMockClientCallback1,
+                mMockClient1InteractionId, FLAG_PREFETCH_DESCENDANTS);
+
+        mInstrumentation.waitForIdleSync();
+
+        // Verify client 1 gets FrameLayout
+        verify(mMockClientCallback1, times(1))
+                .setFindAccessibilityNodeInfoResult(mFindInfoCaptor.capture(),
+                        eq(mMockClient1InteractionId));
+
+        assertEquals(FRAME_LAYOUT_DESCRIPTION,
+                mFindInfoCaptor.getValue().getContentDescription());
+
+        // Verify client 1 has prefetched results. The only prefetched node is TextView1
+        // (from above doAnswer)
+        verify(mMockClientCallback1, times(1))
+                .setPrefetchAccessibilityNodeInfoResult(mPrefetchInfoListCaptor.capture(),
+                        eq(mMockClient1InteractionId));
+
+        // Verify client 2 gets TextView1
+        verify(mMockClientCallback2, times(1))
+                .setFindAccessibilityNodeInfoResult(mFindInfoCaptor.capture(),
+                        eq(mMockClient2InteractionId));
+        assertEquals(TEXT_VIEW_1_DESCRIPTION,
+                mFindInfoCaptor.getValue().getContentDescription());
+        // Verify client 2 has TextView2 as a prefetched node
+        verify(mMockClientCallback2, times(1))
+                .setPrefetchAccessibilityNodeInfoResult(mPrefetchInfoListCaptor.capture(),
+                        eq(mMockClient2InteractionId));
+        List<AccessibilityNodeInfo> prefetchedNode = mPrefetchInfoListCaptor.getValue();
+        assertEquals(1, prefetchedNode.size());
+        assertEquals(TEXT_VIEW_2_DESCRIPTION, prefetchedNode.get(0).getContentDescription());
+    }
+
+    private void sendNodeRequestToController(long requestedNodeId,
+            IAccessibilityInteractionConnectionCallback callback, int interactionId,
+            int prefetchFlags) {
+        final int processAndThreadId = callback == mMockClientCallback1
+                ? MOCK_CLIENT_1_THREAD_AND_PROCESS_ID
+                : MOCK_CLIENT_2_THREAD_AND_PROCESS_ID;
+
+        mAccessibilityInteractionController.findAccessibilityNodeInfoByAccessibilityIdClientThread(
+                requestedNodeId,
+                null, interactionId,
+                callback, prefetchFlags,
+                processAndThreadId,
+                processAndThreadId, null, null);
+
+    }
+
+    private class TestFrameLayout extends FrameLayout {
+
+        TestFrameLayout(Context context) {
+            super(context);
+        }
+
+        @Override
+        public int getWindowVisibility() {
+            // We aren't attached to a window so let's pretend
+            return VISIBLE;
+        }
+
+        @Override
+        public boolean isShown() {
+            // Controller check
+            return true;
+        }
+
+        @Override
+        public int getAccessibilityViewId() {
+            // static id doesn't reset after tests so return the same one
+            return 0;
+        }
+
+        @Override
+        public void addChildrenForAccessibility(ArrayList<View> outChildren) {
+            // ViewGroup#addChildrenForAccessbility sorting logic will switch these two
+            outChildren.add(mTextView1);
+            outChildren.add(mTextView2);
+        }
+
+        @Override
+        public boolean includeForAccessibility() {
+            return true;
+        }
+
+        @Override
+        public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
+            super.onInitializeAccessibilityNodeInfo(info);
+            info.setContentDescription(FRAME_LAYOUT_DESCRIPTION);
+        }
+    }
+
+    private class TestTextView extends TextView {
+        TestTextView(Context context) {
+            super(context);
+        }
+
+        @Override
+        public int getWindowVisibility() {
+            return VISIBLE;
+        }
+
+        @Override
+        public boolean isShown() {
+            return true;
+        }
+
+        @Override
+        public int getAccessibilityViewId() {
+            return 1;
+        }
+
+        @Override
+        public boolean includeForAccessibility() {
+            return true;
+        }
+
+        @Override
+        public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
+            super.onInitializeAccessibilityNodeInfo(info);
+            info.setContentDescription(TEXT_VIEW_1_DESCRIPTION);
+        }
+    }
+
+    private class TestTextView2 extends TextView {
+        TestTextView2(Context context) {
+            super(context);
+        }
+
+        @Override
+        public int getWindowVisibility() {
+            return VISIBLE;
+        }
+
+        @Override
+        public boolean isShown() {
+            return true;
+        }
+
+        @Override
+        public int getAccessibilityViewId() {
+            return 2;
+        }
+
+        @Override
+        public boolean includeForAccessibility() {
+            return true;
+        }
+
+        @Override
+        public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
+            super.onInitializeAccessibilityNodeInfo(info);
+            info.setContentDescription(TEXT_VIEW_2_DESCRIPTION);
+        }
+    }
+}
diff --git a/services/tests/servicestests/src/com/android/server/accessibility/KeyEventDispatcherTest.java b/services/tests/servicestests/src/com/android/server/accessibility/KeyEventDispatcherTest.java
index 85b8fcb..ebb73e8 100644
--- a/services/tests/servicestests/src/com/android/server/accessibility/KeyEventDispatcherTest.java
+++ b/services/tests/servicestests/src/com/android/server/accessibility/KeyEventDispatcherTest.java
@@ -39,6 +39,7 @@
 import android.os.Message;
 import android.os.PowerManager;
 import android.os.RemoteException;
+import android.view.Display;
 import android.view.KeyEvent;
 
 import androidx.test.InstrumentationRegistry;
@@ -172,8 +173,8 @@
                 mFilter1SequenceCaptor.getValue());
 
         assertFalse(mInputEventsHandler.hasMessages(SEND_FRAMEWORK_KEY_EVENT));
-        verify(mMockPowerManagerService, times(1)).userActivity(anyLong(),
-                eq(PowerManager.USER_ACTIVITY_EVENT_ACCESSIBILITY), eq(0));
+        verify(mMockPowerManagerService, times(1)).userActivity(eq(Display.DEFAULT_DISPLAY),
+                anyLong(), eq(PowerManager.USER_ACTIVITY_EVENT_ACCESSIBILITY), eq(0));
         assertFalse(isTimeoutPending(mMessageCapturingHandler));
     }
 
@@ -204,8 +205,8 @@
                 mFilter2SequenceCaptor.getValue());
 
         assertFalse(mInputEventsHandler.hasMessages(SEND_FRAMEWORK_KEY_EVENT));
-        verify(mMockPowerManagerService, times(1)).userActivity(anyLong(),
-                eq(PowerManager.USER_ACTIVITY_EVENT_ACCESSIBILITY), eq(0));
+        verify(mMockPowerManagerService, times(1)).userActivity(eq(Display.DEFAULT_DISPLAY),
+                anyLong(), eq(PowerManager.USER_ACTIVITY_EVENT_ACCESSIBILITY), eq(0));
         assertFalse(isTimeoutPending(mMessageCapturingHandler));
     }
 
@@ -221,8 +222,8 @@
                 mFilter2SequenceCaptor.getValue());
 
         assertFalse(mInputEventsHandler.hasMessages(SEND_FRAMEWORK_KEY_EVENT));
-        verify(mMockPowerManagerService, times(1)).userActivity(anyLong(),
-                eq(PowerManager.USER_ACTIVITY_EVENT_ACCESSIBILITY), eq(0));
+        verify(mMockPowerManagerService, times(1)).userActivity(eq(Display.DEFAULT_DISPLAY),
+                anyLong(), eq(PowerManager.USER_ACTIVITY_EVENT_ACCESSIBILITY), eq(0));
         assertFalse(isTimeoutPending(mMessageCapturingHandler));
     }
 
@@ -238,8 +239,8 @@
                 mFilter2SequenceCaptor.getValue());
 
         assertFalse(mInputEventsHandler.hasMessages(SEND_FRAMEWORK_KEY_EVENT));
-        verify(mMockPowerManagerService, times(1)).userActivity(anyLong(),
-                eq(PowerManager.USER_ACTIVITY_EVENT_ACCESSIBILITY), eq(0));
+        verify(mMockPowerManagerService, times(1)).userActivity(eq(Display.DEFAULT_DISPLAY),
+                anyLong(), eq(PowerManager.USER_ACTIVITY_EVENT_ACCESSIBILITY), eq(0));
         assertFalse(isTimeoutPending(mMessageCapturingHandler));
     }
 
@@ -308,8 +309,8 @@
         mKeyEventDispatcher.handleMessage(getTimedMessage(mMessageCapturingHandler, 0));
 
         assertFalse(mInputEventsHandler.hasMessages(SEND_FRAMEWORK_KEY_EVENT));
-        verify(mMockPowerManagerService, times(1)).userActivity(anyLong(),
-                eq(PowerManager.USER_ACTIVITY_EVENT_ACCESSIBILITY), eq(0));
+        verify(mMockPowerManagerService, times(1)).userActivity(eq(Display.DEFAULT_DISPLAY),
+                anyLong(), eq(PowerManager.USER_ACTIVITY_EVENT_ACCESSIBILITY), eq(0));
     }
 
     @Test
@@ -357,8 +358,8 @@
         mKeyEventDispatcher.handleMessage(getTimedMessage(mMessageCapturingHandler, 0));
 
         assertFalse(mInputEventsHandler.hasMessages(SEND_FRAMEWORK_KEY_EVENT));
-        verify(mMockPowerManagerService, times(1)).userActivity(anyLong(),
-                eq(PowerManager.USER_ACTIVITY_EVENT_ACCESSIBILITY), eq(0));
+        verify(mMockPowerManagerService, times(1)).userActivity(eq(Display.DEFAULT_DISPLAY),
+                anyLong(), eq(PowerManager.USER_ACTIVITY_EVENT_ACCESSIBILITY), eq(0));
     }
 
     /*
diff --git a/services/tests/servicestests/src/com/android/server/locksettings/RebootEscrowManagerTests.java b/services/tests/servicestests/src/com/android/server/locksettings/RebootEscrowManagerTests.java
index a896f1b..b51f4df 100644
--- a/services/tests/servicestests/src/com/android/server/locksettings/RebootEscrowManagerTests.java
+++ b/services/tests/servicestests/src/com/android/server/locksettings/RebootEscrowManagerTests.java
@@ -44,6 +44,7 @@
 import android.content.pm.UserInfo;
 import android.hardware.rebootescrow.IRebootEscrow;
 import android.os.Handler;
+import android.os.HandlerThread;
 import android.os.RemoteException;
 import android.os.ServiceSpecificException;
 import android.os.UserManager;
@@ -62,6 +63,7 @@
 import org.mockito.ArgumentCaptor;
 
 import java.io.File;
+import java.io.IOException;
 import java.util.ArrayList;
 
 import javax.crypto.SecretKey;
@@ -181,6 +183,18 @@
         }
 
         @Override
+        public int getLoadEscrowDataRetryLimit() {
+            // Try two times
+            return 2;
+        }
+
+        @Override
+        public int getLoadEscrowDataRetryIntervalSeconds() {
+            // Retry in 1 seconds
+            return 1;
+        }
+
+        @Override
         public void reportMetric(boolean success) {
             mInjected.reportMetric(success);
         }
@@ -448,6 +462,46 @@
     }
 
     @Test
+    public void loadRebootEscrowDataIfAvailable_ServerBased_RetrySuccess() throws Exception {
+        setServerBasedRebootEscrowProvider();
+
+        when(mInjected.getBootCount()).thenReturn(0);
+        RebootEscrowListener mockListener = mock(RebootEscrowListener.class);
+        mService.setRebootEscrowListener(mockListener);
+        mService.prepareRebootEscrow();
+
+        clearInvocations(mServiceConnection);
+        mService.callToRebootEscrowIfNeeded(PRIMARY_USER_ID, FAKE_SP_VERSION, FAKE_AUTH_TOKEN);
+        verify(mockListener).onPreparedForReboot(eq(true));
+        verify(mServiceConnection, never()).wrapBlob(any(), anyLong(), anyLong());
+
+        // Use x -> x for both wrap & unwrap functions.
+        when(mServiceConnection.wrapBlob(any(), anyLong(), anyLong()))
+                .thenAnswer(invocation -> invocation.getArgument(0));
+        assertTrue(mService.armRebootEscrowIfNeeded());
+        verify(mServiceConnection).wrapBlob(any(), anyLong(), anyLong());
+        assertTrue(mStorage.hasRebootEscrowServerBlob());
+
+        // pretend reboot happens here
+        when(mInjected.getBootCount()).thenReturn(1);
+        ArgumentCaptor<Boolean> metricsSuccessCaptor = ArgumentCaptor.forClass(Boolean.class);
+        doNothing().when(mInjected).reportMetric(metricsSuccessCaptor.capture());
+
+        when(mServiceConnection.unwrap(any(), anyLong()))
+                .thenThrow(new IOException())
+                .thenAnswer(invocation -> invocation.getArgument(0));
+
+        HandlerThread thread = new HandlerThread("RebootEscrowManagerTest");
+        thread.start();
+        mService.loadRebootEscrowDataIfAvailable(new Handler(thread.getLooper()));
+        // Sleep 5s for the retry to complete
+        Thread.sleep(5 * 1000);
+        verify(mServiceConnection, times(2)).unwrap(any(), anyLong());
+        assertTrue(metricsSuccessCaptor.getValue());
+        verify(mKeyStoreManager).clearKeyStoreEncryptionKey();
+    }
+
+    @Test
     public void loadRebootEscrowDataIfAvailable_TooManyBootsInBetween_NoMetrics() throws Exception {
         when(mInjected.getBootCount()).thenReturn(0);
 
diff --git a/services/tests/servicestests/src/com/android/server/locksettings/SyntheticPasswordTests.java b/services/tests/servicestests/src/com/android/server/locksettings/SyntheticPasswordTests.java
index 2d6605a..c0a38b8 100644
--- a/services/tests/servicestests/src/com/android/server/locksettings/SyntheticPasswordTests.java
+++ b/services/tests/servicestests/src/com/android/server/locksettings/SyntheticPasswordTests.java
@@ -239,8 +239,8 @@
         assertFalse(mLocalService.isEscrowTokenActive(handle, PRIMARY_USER_ID));
         assertTrue(mService.hasPendingEscrowToken(PRIMARY_USER_ID));
 
-        mService.verifyCredential(password, PRIMARY_USER_ID, 0 /* flags */)
-                .getResponseCode();
+        assertEquals(VerifyCredentialResponse.RESPONSE_OK, mService.verifyCredential(
+                password, PRIMARY_USER_ID, 0 /* flags */).getResponseCode());
         assertTrue(mLocalService.isEscrowTokenActive(handle, PRIMARY_USER_ID));
         assertFalse(mService.hasPendingEscrowToken(PRIMARY_USER_ID));
 
@@ -268,8 +268,8 @@
         long handle = mLocalService.addEscrowToken(token, PRIMARY_USER_ID, null);
         assertFalse(mLocalService.isEscrowTokenActive(handle, PRIMARY_USER_ID));
 
-        mService.verifyCredential(password, PRIMARY_USER_ID, 0 /* flags */)
-                .getResponseCode();
+        assertEquals(VerifyCredentialResponse.RESPONSE_OK, mService.verifyCredential(
+                password, PRIMARY_USER_ID, 0 /* flags */).getResponseCode());
         assertTrue(mLocalService.isEscrowTokenActive(handle, PRIMARY_USER_ID));
 
         mLocalService.setLockCredentialWithToken(nonePassword(), handle, token, PRIMARY_USER_ID);
@@ -294,8 +294,8 @@
         long handle = mLocalService.addEscrowToken(token, PRIMARY_USER_ID, null);
         assertFalse(mLocalService.isEscrowTokenActive(handle, PRIMARY_USER_ID));
 
-        mService.verifyCredential(password, PRIMARY_USER_ID, 0 /* flags */)
-                .getResponseCode();
+        assertEquals(VerifyCredentialResponse.RESPONSE_OK, mService.verifyCredential(
+                password, PRIMARY_USER_ID, 0 /* flags */).getResponseCode());
         assertTrue(mLocalService.isEscrowTokenActive(handle, PRIMARY_USER_ID));
 
         mService.setLockCredential(pattern, password, PRIMARY_USER_ID);
@@ -369,6 +369,36 @@
     }
 
     @Test
+    public void testActivateMultipleEscrowTokens() throws Exception {
+        byte[] token0 = "some-high-entropy-secure-token-0".getBytes();
+        byte[] token1 = "some-high-entropy-secure-token-1".getBytes();
+        byte[] token2 = "some-high-entropy-secure-token-2".getBytes();
+
+        LockscreenCredential password = newPassword("password");
+        LockscreenCredential pattern = newPattern("123654");
+        initializeCredentialUnderSP(password, PRIMARY_USER_ID);
+
+        long handle0 = mLocalService.addEscrowToken(token0, PRIMARY_USER_ID, null);
+        long handle1 = mLocalService.addEscrowToken(token1, PRIMARY_USER_ID, null);
+        long handle2 = mLocalService.addEscrowToken(token2, PRIMARY_USER_ID, null);
+
+        // Activate token
+        assertEquals(VerifyCredentialResponse.RESPONSE_OK, mService.verifyCredential(
+                password, PRIMARY_USER_ID, 0 /* flags */).getResponseCode());
+
+        // Verify tokens work
+        assertTrue(mLocalService.isEscrowTokenActive(handle0, PRIMARY_USER_ID));
+        assertTrue(mLocalService.setLockCredentialWithToken(
+                pattern, handle0, token0, PRIMARY_USER_ID));
+        assertTrue(mLocalService.isEscrowTokenActive(handle1, PRIMARY_USER_ID));
+        assertTrue(mLocalService.setLockCredentialWithToken(
+                pattern, handle1, token1, PRIMARY_USER_ID));
+        assertTrue(mLocalService.isEscrowTokenActive(handle2, PRIMARY_USER_ID));
+        assertTrue(mLocalService.setLockCredentialWithToken(
+                pattern, handle2, token2, PRIMARY_USER_ID));
+    }
+
+    @Test
     public void testSetLockCredentialWithTokenFailsWithoutLockScreen() throws Exception {
         LockscreenCredential password = newPassword("password");
         LockscreenCredential pattern = newPattern("123654");
@@ -494,8 +524,8 @@
         reset(mDevicePolicyManager);
 
         long handle = mLocalService.addEscrowToken(token, PRIMARY_USER_ID, null);
-        mService.verifyCredential(password, PRIMARY_USER_ID, 0 /* flags */)
-                .getResponseCode();
+        assertEquals(VerifyCredentialResponse.RESPONSE_OK, mService.verifyCredential(
+                password, PRIMARY_USER_ID, 0 /* flags */).getResponseCode());
         assertTrue(mLocalService.isEscrowTokenActive(handle, PRIMARY_USER_ID));
 
         mService.onCleanupUser(PRIMARY_USER_ID);
diff --git a/services/tests/servicestests/src/com/android/server/power/PowerManagerServiceTest.java b/services/tests/servicestests/src/com/android/server/power/PowerManagerServiceTest.java
index ea27331..6e5fbd0 100644
--- a/services/tests/servicestests/src/com/android/server/power/PowerManagerServiceTest.java
+++ b/services/tests/servicestests/src/com/android/server/power/PowerManagerServiceTest.java
@@ -764,7 +764,7 @@
         createService();
         startSystem();
 
-        mService.getBinderServiceInstance().userActivity(mClock.now(),
+        mService.getBinderServiceInstance().userActivity(Display.DEFAULT_DISPLAY, mClock.now(),
                 PowerManager.USER_ACTIVITY_EVENT_TOUCH, 0);
         verify(mInattentiveSleepWarningControllerMock, never()).show();
 
@@ -773,7 +773,7 @@
         verify(mInattentiveSleepWarningControllerMock, never()).dismiss(anyBoolean());
         when(mInattentiveSleepWarningControllerMock.isShown()).thenReturn(true);
 
-        mService.getBinderServiceInstance().userActivity(mClock.now(),
+        mService.getBinderServiceInstance().userActivity(Display.DEFAULT_DISPLAY, mClock.now(),
                 PowerManager.USER_ACTIVITY_EVENT_TOUCH, 0);
         verify(mInattentiveSleepWarningControllerMock, times(1)).dismiss(true);
     }
diff --git a/services/tests/servicestests/src/com/android/server/vibrator/FakeVibratorControllerProvider.java b/services/tests/servicestests/src/com/android/server/vibrator/FakeVibratorControllerProvider.java
index 4634e12..2a3c2c4 100644
--- a/services/tests/servicestests/src/com/android/server/vibrator/FakeVibratorControllerProvider.java
+++ b/services/tests/servicestests/src/com/android/server/vibrator/FakeVibratorControllerProvider.java
@@ -100,16 +100,17 @@
             return EFFECT_DURATION;
         }
 
-        public void compose(VibrationEffect.Composition.PrimitiveEffect[] effect,
+        public long compose(VibrationEffect.Composition.PrimitiveEffect[] effect,
                 long vibrationId) {
             VibrationEffect.Composed composed = new VibrationEffect.Composed(Arrays.asList(effect));
             mEffects.add(composed);
             applyLatency();
-            long duration = EFFECT_DURATION * effect.length;
+            long duration = 0;
             for (VibrationEffect.Composition.PrimitiveEffect e : effect) {
-                duration += e.delay;
+                duration += EFFECT_DURATION + e.delay;
             }
             scheduleListener(duration, vibrationId);
+            return duration;
         }
 
         public void setExternalControl(boolean enabled) {
diff --git a/services/tests/servicestests/src/com/android/server/vibrator/VibratorControllerTest.java b/services/tests/servicestests/src/com/android/server/vibrator/VibratorControllerTest.java
index 815aa8e..bad3e4c 100644
--- a/services/tests/servicestests/src/com/android/server/vibrator/VibratorControllerTest.java
+++ b/services/tests/servicestests/src/com/android/server/vibrator/VibratorControllerTest.java
@@ -19,6 +19,7 @@
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
+import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyBoolean;
 import static org.mockito.ArgumentMatchers.anyLong;
 import static org.mockito.ArgumentMatchers.eq;
@@ -202,7 +203,7 @@
 
         VibrationEffect.Prebaked effect = (VibrationEffect.Prebaked)
                 VibrationEffect.createPredefined(VibrationEffect.EFFECT_CLICK);
-        controller.on(effect, 11);
+        assertEquals(10L, controller.on(effect, 11));
 
         assertTrue(controller.isVibrating());
         verify(mNativeWrapperMock).perform(eq((long) VibrationEffect.EFFECT_CLICK),
@@ -212,13 +213,14 @@
     @Test
     public void on_withComposed_performsEffect() {
         mockVibratorCapabilities(IVibrator.CAP_COMPOSE_EFFECTS);
+        when(mNativeWrapperMock.compose(any(), anyLong())).thenReturn(15L);
         VibratorController controller = createController();
 
         VibrationEffect.Composed effect = (VibrationEffect.Composed)
                 VibrationEffect.startComposition()
                         .addPrimitive(VibrationEffect.Composition.PRIMITIVE_CLICK, 0.5f, 10)
                         .compose();
-        controller.on(effect, 12);
+        assertEquals(15L, controller.on(effect, 12));
 
         ArgumentCaptor<VibrationEffect.Composition.PrimitiveEffect[]> primitivesCaptor =
                 ArgumentCaptor.forClass(VibrationEffect.Composition.PrimitiveEffect[].class);
diff --git a/services/tests/wmtests/src/com/android/server/policy/SingleKeyGestureTests.java b/services/tests/wmtests/src/com/android/server/policy/SingleKeyGestureTests.java
new file mode 100644
index 0000000..3025a95
--- /dev/null
+++ b/services/tests/wmtests/src/com/android/server/policy/SingleKeyGestureTests.java
@@ -0,0 +1,152 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.policy;
+
+import static android.view.KeyEvent.ACTION_DOWN;
+import static android.view.KeyEvent.ACTION_UP;
+import static android.view.KeyEvent.KEYCODE_POWER;
+
+import static androidx.test.platform.app.InstrumentationRegistry.getInstrumentation;
+
+import static com.android.server.policy.SingleKeyGestureDetector.KEY_LONGPRESS;
+import static com.android.server.policy.SingleKeyGestureDetector.KEY_VERYLONGPRESS;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import android.app.Instrumentation;
+import android.content.Context;
+import android.os.SystemClock;
+import android.view.KeyEvent;
+import android.view.ViewConfiguration;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Test class for {@link SingleKeyGestureDetector}.
+ *
+ * Build/Install/Run:
+ *  atest WmTests:SingleKeyGestureTests
+ */
+public class SingleKeyGestureTests {
+    private SingleKeyGestureDetector mDetector;
+
+    private int mMaxMultiPressPowerCount = 2;
+
+    private CountDownLatch mShortPressed = new CountDownLatch(1);
+    private CountDownLatch mLongPressed = new CountDownLatch(1);
+    private CountDownLatch mVeryLongPressed = new CountDownLatch(1);
+    private CountDownLatch mMultiPressed = new CountDownLatch(1);
+
+    private final Instrumentation mInstrumentation = getInstrumentation();
+    private final Context mContext = mInstrumentation.getTargetContext();
+    private long mWaitTimeout;
+    private long mLongPressTime;
+    private long mVeryLongPressTime;
+
+    @Before
+    public void setUp() {
+        mDetector = new SingleKeyGestureDetector(mContext);
+        initSingleKeyGestureRules();
+        mWaitTimeout = ViewConfiguration.getMultiPressTimeout() + 50;
+        mLongPressTime = ViewConfiguration.get(mContext).getDeviceGlobalActionKeyTimeout() + 50;
+        mVeryLongPressTime = mContext.getResources().getInteger(
+                com.android.internal.R.integer.config_veryLongPressTimeout) + 50;
+    }
+
+    private void initSingleKeyGestureRules() {
+        mDetector.addRule(new SingleKeyGestureDetector.SingleKeyRule(KEYCODE_POWER,
+                KEY_LONGPRESS | KEY_VERYLONGPRESS) {
+            @Override
+            int getMaxMultiPressCount() {
+                return mMaxMultiPressPowerCount;
+            }
+            @Override
+            public void onPress(long downTime) {
+                mShortPressed.countDown();
+            }
+
+            @Override
+            void onLongPress(long downTime) {
+                mLongPressed.countDown();
+            }
+
+            @Override
+            void onVeryLongPress(long downTime) {
+                mVeryLongPressed.countDown();
+            }
+
+            @Override
+            void onMultiPress(long downTime, int count) {
+                mMultiPressed.countDown();
+                assertEquals(mMaxMultiPressPowerCount, count);
+            }
+        });
+    }
+
+    private void pressKey(long eventTime, int keyCode, long pressTime) {
+        final KeyEvent keyDown = new KeyEvent(eventTime, eventTime, ACTION_DOWN,
+                keyCode, 0 /* repeat */, 0 /* metaState */);
+        mDetector.interceptKey(keyDown);
+
+        // keep press down.
+        try {
+            Thread.sleep(pressTime);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+
+        eventTime += pressTime;
+        final KeyEvent keyUp = new KeyEvent(eventTime, eventTime, ACTION_UP,
+                keyCode, 0 /* repeat */, 0 /* metaState */);
+
+        mDetector.interceptKey(keyUp);
+    }
+
+    @Test
+    public void testShortPress() throws InterruptedException {
+        final long eventTime = SystemClock.uptimeMillis();
+        pressKey(eventTime, KEYCODE_POWER, 0 /* pressTime */);
+        assertTrue(mShortPressed.await(mWaitTimeout, TimeUnit.MILLISECONDS));
+    }
+
+    @Test
+    public void testLongPress() throws InterruptedException {
+        final long eventTime = SystemClock.uptimeMillis();
+        pressKey(eventTime, KEYCODE_POWER, mLongPressTime);
+        assertTrue(mLongPressed.await(mWaitTimeout, TimeUnit.MILLISECONDS));
+    }
+
+    @Test
+    public void testVeryLongPress() throws InterruptedException {
+        final long eventTime = SystemClock.uptimeMillis();
+        pressKey(eventTime, KEYCODE_POWER, mVeryLongPressTime);
+        assertTrue(mVeryLongPressed.await(mWaitTimeout, TimeUnit.MILLISECONDS));
+    }
+
+    @Test
+    public void testMultiPress() throws InterruptedException {
+        final long eventTime = SystemClock.uptimeMillis();
+        pressKey(eventTime, KEYCODE_POWER, 0 /* pressTime */);
+        pressKey(eventTime, KEYCODE_POWER, 0 /* pressTime */);
+        assertTrue(mMultiPressed.await(mWaitTimeout, TimeUnit.MILLISECONDS));
+    }
+}
diff --git a/services/tests/wmtests/src/com/android/server/wm/TransitionTests.java b/services/tests/wmtests/src/com/android/server/wm/TransitionTests.java
index 154a899..79ef868 100644
--- a/services/tests/wmtests/src/com/android/server/wm/TransitionTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/TransitionTests.java
@@ -25,11 +25,14 @@
 import static android.view.WindowManager.TRANSIT_TO_BACK;
 import static android.window.TransitionInfo.FLAG_IS_WALLPAPER;
 import static android.window.TransitionInfo.FLAG_SHOW_WALLPAPER;
+import static android.window.TransitionInfo.isIndependent;
 
 import static com.android.dx.mockito.inline.extended.ExtendedMockito.doReturn;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.spy;
 
@@ -343,6 +346,76 @@
                 tasks[showWallpaperTask].mRemoteToken.toWindowContainerToken()).getFlags());
     }
 
+    @Test
+    public void testIndependent() {
+        final Transition transition = createTestTransition(TRANSIT_OPEN);
+        ArrayMap<WindowContainer, Transition.ChangeInfo> changes = transition.mChanges;
+        ArraySet<WindowContainer> participants = transition.mParticipants;
+        ITaskOrganizer mockOrg = mock(ITaskOrganizer.class);
+
+        final Task openTask = createTaskStackOnDisplay(WINDOWING_MODE_FULLSCREEN,
+                ACTIVITY_TYPE_STANDARD, mDisplayContent);
+        final Task openInOpenTask = createTaskInStack(openTask, 0);
+        final ActivityRecord openInOpen = createActivityRecord(openInOpenTask);
+
+        final Task changeTask = createTaskStackOnDisplay(WINDOWING_MODE_FULLSCREEN,
+                ACTIVITY_TYPE_STANDARD, mDisplayContent);
+        final Task changeInChangeTask = createTaskInStack(changeTask, 0);
+        final Task openInChangeTask = createTaskInStack(changeTask, 0);
+        final ActivityRecord changeInChange = createActivityRecord(changeInChangeTask);
+        final ActivityRecord openInChange = createActivityRecord(openInChangeTask);
+        // set organizer for everything so that they all get added to transition info
+        for (Task t : new Task[]{
+                openTask, openInOpenTask, changeTask, changeInChangeTask, openInChangeTask}) {
+            t.mTaskOrganizer = mockOrg;
+        }
+
+        // Start states.
+        changes.put(openTask, new Transition.ChangeInfo(false /* vis */, true /* exChg */));
+        changes.put(changeTask, new Transition.ChangeInfo(true /* vis */, false /* exChg */));
+        changes.put(openInOpenTask, new Transition.ChangeInfo(false /* vis */, true /* exChg */));
+        changes.put(openInChangeTask, new Transition.ChangeInfo(false /* vis */, true /* exChg */));
+        changes.put(changeInChangeTask,
+                new Transition.ChangeInfo(true /* vis */, false /* exChg */));
+        changes.put(openInOpen, new Transition.ChangeInfo(false /* vis */, true /* exChg */));
+        changes.put(openInChange, new Transition.ChangeInfo(false /* vis */, true /* exChg */));
+        changes.put(changeInChange, new Transition.ChangeInfo(true /* vis */, false /* exChg */));
+        fillChangeMap(changes, openTask);
+        // End states.
+        changeInChange.mVisibleRequested = true;
+        openInOpen.mVisibleRequested = true;
+        openInChange.mVisibleRequested = true;
+
+        int transit = TRANSIT_OLD_TASK_OPEN;
+        int flags = 0;
+
+        // Check full promotion from leaf
+        participants.add(changeInChange);
+        participants.add(openInOpen);
+        participants.add(openInChange);
+        // Explicitly add changeTask (to test independence with parents)
+        participants.add(changeTask);
+        ArraySet<WindowContainer> targets = Transition.calculateTargets(participants, changes);
+        TransitionInfo info = Transition.calculateTransitionInfo(transit, flags, targets, changes);
+        // Root changes should always be considered independent
+        assertTrue(isIndependent(
+                info.getChange(openTask.mRemoteToken.toWindowContainerToken()), info));
+        assertTrue(isIndependent(
+                info.getChange(changeTask.mRemoteToken.toWindowContainerToken()), info));
+
+        // Children of a open/close change are not independent
+        assertFalse(isIndependent(
+                info.getChange(openInOpenTask.mRemoteToken.toWindowContainerToken()), info));
+
+        // Non-root changes are not independent
+        assertFalse(isIndependent(
+                info.getChange(changeInChangeTask.mRemoteToken.toWindowContainerToken()), info));
+
+        // open/close within a change are independent
+        assertTrue(isIndependent(
+                info.getChange(openInChangeTask.mRemoteToken.toWindowContainerToken()), info));
+    }
+
     /** Fill the change map with all the parents of top. Change maps are usually fully populated */
     private static void fillChangeMap(ArrayMap<WindowContainer, Transition.ChangeInfo> changes,
             WindowContainer top) {
diff --git a/telephony/common/com/android/internal/telephony/SipMessageParsingUtils.java b/telephony/common/com/android/internal/telephony/SipMessageParsingUtils.java
index c7e7cd5..179248d 100644
--- a/telephony/common/com/android/internal/telephony/SipMessageParsingUtils.java
+++ b/telephony/common/com/android/internal/telephony/SipMessageParsingUtils.java
@@ -65,6 +65,11 @@
     // compact form of the via header key
     private static final String VIA_SIP_HEADER_KEY_COMPACT = "v";
 
+    // call-id header key
+    private static final String CALL_ID_SIP_HEADER_KEY = "call-id";
+    // compact form of the call-id header key
+    private static final String CALL_ID_SIP_HEADER_KEY_COMPACT = "i";
+
     /**
      * @return true if the SIP message start line is considered a request (based on known request
      * methods).
@@ -124,6 +129,17 @@
         return null;
     }
 
+    /**
+     * Return the call-id header key's associated value.
+     * @param headerString The string containing the headers of the SIP message.
+     */
+    public static String getCallId(String headerString) {
+        // search for the call-Id header, there should only be one in the header.
+        List<Pair<String, String>> headers = parseHeaders(headerString, true,
+                CALL_ID_SIP_HEADER_KEY, CALL_ID_SIP_HEADER_KEY_COMPACT);
+        return !headers.isEmpty() ? headers.get(0).second : null;
+    }
+
     private static String[] splitStartLineAndVerify(String startLine) {
         String[] splitLine = startLine.split(" ");
         if (isStartLineMalformed(splitLine)) return null;
diff --git a/telephony/java/android/telephony/TelephonyDisplayInfo.java b/telephony/java/android/telephony/TelephonyDisplayInfo.java
index 5b5570b..2f89bfb 100644
--- a/telephony/java/android/telephony/TelephonyDisplayInfo.java
+++ b/telephony/java/android/telephony/TelephonyDisplayInfo.java
@@ -30,8 +30,8 @@
  * necessarily a precise or accurate representation of the current state and should be treated
  * accordingly.
  * To be notified of changes in TelephonyDisplayInfo, use
- * {@link TelephonyManager#registerPhoneStateListener} with a {@link PhoneStateListener}
- * that implements {@link PhoneStateListener.DisplayInfoChangedListener}.
+ * {@link TelephonyManager#registerTelephonyCallback} with a {@link TelephonyCallback}
+ * that implements {@link TelephonyCallback.DisplayInfoListener}.
  * Override the onDisplayInfoChanged() method to handle the broadcast.
  */
 public final class TelephonyDisplayInfo implements Parcelable {
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index b46440d..c48bd21 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -5949,25 +5949,20 @@
      * @param events The telephony state(s) of interest to the listener,
      *               as a bitwise-OR combination of {@link PhoneStateListener}
      *               LISTEN_ flags.
-     * @deprecated Use {@link #registerPhoneStateListener(Executor, PhoneStateListener)}.
+     * @deprecated Use {@link #registerTelephonyCallback(Executor, TelephonyCallback)}.
      */
     @Deprecated
     public void listen(PhoneStateListener listener, int events) {
-        if (!listener.isExecutorSet()) {
-            throw new IllegalStateException("PhoneStateListener should be created on a thread "
-                    + "with Looper.myLooper() != null");
-        }
-        boolean notifyNow = getITelephony() != null;
-        mTelephonyRegistryMgr = mContext.getSystemService(TelephonyRegistryManager.class);
-        if (mTelephonyRegistryMgr != null) {
-            if (events != PhoneStateListener.LISTEN_NONE) {
-                mTelephonyRegistryMgr.registerPhoneStateListenerWithEvents(mSubId,
-                        getOpPackageName(), getAttributionTag(), listener, events, notifyNow);
-            } else {
-                unregisterPhoneStateListener(listener);
-            }
+        if (mContext == null) return;
+        boolean notifyNow = (getITelephony() != null);
+        TelephonyRegistryManager telephonyRegistry =
+                (TelephonyRegistryManager)
+                        mContext.getSystemService(Context.TELEPHONY_REGISTRY_SERVICE);
+        if (telephonyRegistry != null) {
+            telephonyRegistry.listenFromListener(mSubId, getOpPackageName(),
+                    getAttributionTag(), listener, events, notifyNow);
         } else {
-            throw new IllegalStateException("telephony service is null.");
+            Rlog.w(TAG, "telephony registry not ready.");
         }
     }
 
@@ -15049,66 +15044,69 @@
     }
 
     /**
-     * Registers a listener object to receive notification of changes
-     * in specified telephony states.
+     * Registers a callback object to receive notification of changes in specified telephony states.
      * <p>
-     * To register a listener, pass a {@link PhoneStateListener} which implements
+     * To register a callback, pass a {@link TelephonyCallback} which implements
      * interfaces of events. For example,
-     * FakeServiceStateChangedListener extends {@link PhoneStateListener} implements
-     * {@link PhoneStateListener.ServiceStateChangedListener}.
+     * FakeServiceStateCallback extends {@link TelephonyCallback} implements
+     * {@link TelephonyCallback.ServiceStateListener}.
      *
      * At registration, and when a specified telephony state changes, the telephony manager invokes
-     * the appropriate callback method on the listener object and passes the current (updated)
+     * the appropriate callback method on the callback object and passes the current (updated)
      * values.
      * <p>
      *
      * If this TelephonyManager object has been created with {@link #createForSubscriptionId},
      * applies to the given subId. Otherwise, applies to
-     * {@link SubscriptionManager#getDefaultSubscriptionId()}. To listen events for multiple subIds,
-     * pass a separate listener object to each TelephonyManager object created with
+     * {@link SubscriptionManager#getDefaultSubscriptionId()}. To register events for multiple
+     * subIds, pass a separate callback object to each TelephonyManager object created with
      * {@link #createForSubscriptionId}.
      *
      * Note: if you call this method while in the middle of a binder transaction, you <b>must</b>
      * call {@link android.os.Binder#clearCallingIdentity()} before calling this method. A
      * {@link SecurityException} will be thrown otherwise.
      *
-     * This API should be used sparingly -- large numbers of listeners will cause system
-     * instability. If a process has registered too many listeners without unregistering them, it
-     * may encounter an {@link IllegalStateException} when trying to register more listeners.
+     * This API should be used sparingly -- large numbers of callbacks will cause system
+     * instability. If a process has registered too many callbacks without unregistering them, it
+     * may encounter an {@link IllegalStateException} when trying to register more callbacks.
      *
      * @param executor The executor of where the callback will execute.
-     * @param listener The {@link PhoneStateListener} object to register.
+     * @param callback The {@link TelephonyCallback} object to register.
      */
-    public void registerPhoneStateListener(@NonNull @CallbackExecutor Executor executor,
-            @NonNull PhoneStateListener listener) {
-        if (executor == null || listener == null) {
-            throw new IllegalArgumentException("PhoneStateListener and executor must be non-null");
+    public void registerTelephonyCallback(@NonNull @CallbackExecutor Executor executor,
+            @NonNull TelephonyCallback callback) {
+        if (executor == null || callback == null) {
+            throw new IllegalArgumentException("TelephonyCallback and executor must be non-null");
         }
         mTelephonyRegistryMgr = (TelephonyRegistryManager)
                 mContext.getSystemService(Context.TELEPHONY_REGISTRY_SERVICE);
         if (mTelephonyRegistryMgr != null) {
-            mTelephonyRegistryMgr.registerPhoneStateListener(executor, mSubId,
-                    getOpPackageName(), getAttributionTag(), listener, getITelephony() != null);
+            mTelephonyRegistryMgr.registerTelephonyCallback(executor, mSubId, getOpPackageName(),
+                    getAttributionTag(), callback, getITelephony() != null);
         } else {
             throw new IllegalStateException("telephony service is null.");
         }
     }
 
     /**
-     * Unregister an existing {@link PhoneStateListener}.
+     * Unregister an existing {@link TelephonyCallback}.
      *
-     * @param listener The {@link PhoneStateListener} object to unregister.
+     * @param callback The {@link TelephonyCallback} object to unregister.
      */
-    public void unregisterPhoneStateListener(@NonNull PhoneStateListener listener) {
+    public void unregisterTelephonyCallback(@NonNull TelephonyCallback callback) {
 
         if (mContext == null) {
             throw new IllegalStateException("telephony service is null.");
         }
 
+        if (callback.callback == null) {
+            return;
+        }
+
         mTelephonyRegistryMgr = mContext.getSystemService(TelephonyRegistryManager.class);
         if (mTelephonyRegistryMgr != null) {
-            mTelephonyRegistryMgr.unregisterPhoneStateListener(mSubId, getOpPackageName(),
-                    getAttributionTag(), listener, getITelephony() != null);
+            mTelephonyRegistryMgr.unregisterTelephonyCallback(mSubId, getOpPackageName(),
+                    getAttributionTag(), callback, getITelephony() != null);
         } else {
             throw new IllegalStateException("telephony service is null.");
         }
diff --git a/telephony/java/android/telephony/ims/SipMessage.java b/telephony/java/android/telephony/ims/SipMessage.java
index 9cfa640..ad6d73c 100644
--- a/telephony/java/android/telephony/ims/SipMessage.java
+++ b/telephony/java/android/telephony/ims/SipMessage.java
@@ -19,6 +19,7 @@
 import static java.nio.charset.StandardCharsets.UTF_8;
 
 import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.annotation.SystemApi;
 import android.os.Build;
 import android.os.Parcel;
@@ -46,6 +47,8 @@
     private final String mStartLine;
     private final String mHeaderSection;
     private final byte[] mContent;
+    private final String mViaBranchParam;
+    private final String mCallIdParam;
 
     /**
      * Represents a partially encoded SIP message.
@@ -63,6 +66,9 @@
         mStartLine = startLine;
         mHeaderSection = headerSection;
         mContent = content;
+
+        mViaBranchParam = SipMessageParsingUtils.getTransactionId(mHeaderSection);
+        mCallIdParam = SipMessageParsingUtils.getCallId(mHeaderSection);
     }
 
     /**
@@ -73,6 +79,8 @@
         mHeaderSection = source.readString();
         mContent = new byte[source.readInt()];
         source.readByteArray(mContent);
+        mViaBranchParam = source.readString();
+        mCallIdParam = source.readString();
     }
 
     /**
@@ -97,6 +105,25 @@
         return mContent;
     }
 
+    /**
+     * @return the branch parameter enclosed in the Via header key's value. See RFC 3261 section
+     * 20.42 for more information on the Via header. If {@code null}, then there was either no
+     * Via parameter found in this SIP message's headers or no branch parameter found in the
+     * Via header.
+     */
+    public @Nullable String getViaBranchParameter() {
+        return mViaBranchParam;
+    }
+
+    /**
+     * @return the value associated with the call-id header of this SIP message. See RFC 3261
+     * section 20.8 for more information on the call-id header. If {@code null}, then there was no
+     * call-id header found in this SIP message's headers.
+     */
+    public @Nullable String getCallIdParameter() {
+        return mCallIdParam;
+    }
+
     @Override
     public int describeContents() {
         return 0;
@@ -108,6 +135,8 @@
         dest.writeString(mHeaderSection);
         dest.writeInt(mContent.length);
         dest.writeByteArray(mContent);
+        dest.writeString(mViaBranchParam);
+        dest.writeString(mCallIdParam);
     }
 
     public static final @NonNull Creator<SipMessage> CREATOR = new Creator<SipMessage>() {
diff --git a/telephony/java/android/telephony/ims/aidl/SipDelegateAidlWrapper.java b/telephony/java/android/telephony/ims/aidl/SipDelegateAidlWrapper.java
index 9d91901..739946b 100644
--- a/telephony/java/android/telephony/ims/aidl/SipDelegateAidlWrapper.java
+++ b/telephony/java/android/telephony/ims/aidl/SipDelegateAidlWrapper.java
@@ -31,8 +31,6 @@
 import android.text.TextUtils;
 import android.util.Log;
 
-import com.android.internal.telephony.SipMessageParsingUtils;
-
 import java.util.ArrayList;
 import java.util.Set;
 import java.util.concurrent.Executor;
@@ -188,7 +186,7 @@
     }
 
     private void notifyLocalMessageFailedToBeReceived(SipMessage m, int reason) {
-        String transactionId = SipMessageParsingUtils.getTransactionId(m.getHeaderSection());
+        String transactionId = m.getViaBranchParameter();
         if (TextUtils.isEmpty(transactionId)) {
             Log.w(LOG_TAG, "failure to parse SipMessage.");
             throw new IllegalArgumentException("Malformed SipMessage, can not determine "
diff --git a/telephony/java/android/telephony/ims/aidl/SipDelegateConnectionAidlWrapper.java b/telephony/java/android/telephony/ims/aidl/SipDelegateConnectionAidlWrapper.java
index c877aca..3cd2726 100644
--- a/telephony/java/android/telephony/ims/aidl/SipDelegateConnectionAidlWrapper.java
+++ b/telephony/java/android/telephony/ims/aidl/SipDelegateConnectionAidlWrapper.java
@@ -32,8 +32,6 @@
 import android.util.ArraySet;
 import android.util.Log;
 
-import com.android.internal.telephony.SipMessageParsingUtils;
-
 import java.util.List;
 import java.util.NoSuchElementException;
 import java.util.concurrent.Executor;
@@ -268,7 +266,7 @@
     }
 
     private void notifyLocalMessageFailedToSend(SipMessage m, int reason) {
-        String transactionId = SipMessageParsingUtils.getTransactionId(m.getHeaderSection());
+        String transactionId = m.getViaBranchParameter();
         if (TextUtils.isEmpty(transactionId)) {
             Log.w(LOG_TAG, "sendMessage detected a malformed SipMessage and can not get a "
                     + "transaction ID.");
diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index e87f3d9..7e04baa 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -1200,15 +1200,6 @@
     void shutdownMobileRadios();
 
     /**
-     * Set phone radio type and access technology.
-     *
-     * @param rafs an RadioAccessFamily array to indicate all phone's
-     *        new radio access family. The length of RadioAccessFamily
-     *        must equ]]al to phone count.
-     */
-    void setRadioCapability(in RadioAccessFamily[] rafs);
-
-    /**
      * Get phone radio type and access technology.
      *
      * @param phoneId which phone you want to get
diff --git a/tests/HwAccelerationTest/AndroidManifest.xml b/tests/HwAccelerationTest/AndroidManifest.xml
index 62ccb1a0..6bf4492 100644
--- a/tests/HwAccelerationTest/AndroidManifest.xml
+++ b/tests/HwAccelerationTest/AndroidManifest.xml
@@ -771,6 +771,24 @@
             </intent-filter>
         </activity>
 
+        <activity android:name="StretchShaderActivity"
+                  android:label="RenderEffect/Stretch"
+                  android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="com.android.test.hwui.TEST"/>
+            </intent-filter>
+        </activity>
+
+        <activity android:name="EdgeEffectStretchActivity"
+                  android:label="RenderEffect/EdgeEffect stretch"
+                  android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="com.android.test.hwui.TEST"/>
+            </intent-filter>
+        </activity>
+
         <activity android:name="TextActivity"
              android:label="Text/Simple Text"
              android:theme="@android:style/Theme.NoTitleBar"
diff --git a/tests/HwAccelerationTest/res/layout/stretch_layout.xml b/tests/HwAccelerationTest/res/layout/stretch_layout.xml
new file mode 100644
index 0000000..df5f297
--- /dev/null
+++ b/tests/HwAccelerationTest/res/layout/stretch_layout.xml
@@ -0,0 +1,88 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2010 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<ScrollView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/scroll_view"
+    android:edgeEffectType="stretch"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent" >
+    <LinearLayout
+        android:orientation="vertical"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+
+        <HorizontalScrollView
+            android:id="@+id/horizontal_scroll_view"
+            android:edgeEffectType="stretch"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+            <LinearLayout
+                android:orientation="horizontal"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent">
+                <ImageView
+                    android:layout_width="match_parent"
+                    android:layout_height="200dp"
+                    android:src="@drawable/sunset1"/>
+                <ImageView
+                    android:layout_width="match_parent"
+                    android:layout_height="200dp"
+                    android:src="@drawable/sunset1"/>
+                <ImageView
+                    android:layout_width="match_parent"
+                    android:layout_height="200dp"
+                    android:src="@drawable/sunset1"/>
+                <ImageView
+                    android:layout_width="match_parent"
+                    android:layout_height="200dp"
+                    android:src="@drawable/sunset1"/>
+                <ImageView
+                    android:layout_width="match_parent"
+                    android:layout_height="200dp"
+                    android:src="@drawable/sunset1"/>
+                <ImageView
+                    android:layout_width="match_parent"
+                    android:layout_height="200dp"
+                    android:src="@drawable/sunset1"/>
+            </LinearLayout>
+        </HorizontalScrollView>
+        <ImageView
+            android:layout_width="match_parent"
+            android:layout_height="200dp"
+            android:src="@drawable/sunset1"/>
+        <ImageView
+            android:layout_width="match_parent"
+            android:layout_height="200dp"
+            android:src="@drawable/sunset1"/>
+        <ImageView
+            android:layout_width="match_parent"
+            android:layout_height="200dp"
+            android:src="@drawable/sunset1"/>
+        <ImageView
+            android:layout_width="match_parent"
+            android:layout_height="200dp"
+            android:src="@drawable/sunset1"/>
+        <ImageView
+            android:layout_width="match_parent"
+            android:layout_height="200dp"
+            android:src="@drawable/sunset1"/>
+        <ImageView
+            android:layout_width="match_parent"
+            android:layout_height="200dp"
+            android:src="@drawable/sunset1"/>
+
+    </LinearLayout>
+</ScrollView>
diff --git a/tests/HwAccelerationTest/src/com/android/test/hwui/EdgeEffectStretchActivity.java b/tests/HwAccelerationTest/src/com/android/test/hwui/EdgeEffectStretchActivity.java
new file mode 100644
index 0000000..f0e6299
--- /dev/null
+++ b/tests/HwAccelerationTest/src/com/android/test/hwui/EdgeEffectStretchActivity.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.test.hwui;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.widget.HorizontalScrollView;
+import android.widget.ScrollView;
+
+public class EdgeEffectStretchActivity extends Activity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.stretch_layout);
+        HorizontalScrollView hsv = findViewById(R.id.horizontal_scroll_view);
+        hsv.setStretchDistance(50f);
+
+        ScrollView sv = findViewById(R.id.scroll_view);
+        sv.setStretchDistance(50f);
+    }
+}
diff --git a/tests/HwAccelerationTest/src/com/android/test/hwui/StretchShaderActivity.java b/tests/HwAccelerationTest/src/com/android/test/hwui/StretchShaderActivity.java
new file mode 100644
index 0000000..9bd933a
--- /dev/null
+++ b/tests/HwAccelerationTest/src/com/android/test/hwui/StretchShaderActivity.java
@@ -0,0 +1,540 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.test.hwui;
+
+import android.annotation.Nullable;
+import android.app.Activity;
+import android.graphics.Bitmap;
+import android.graphics.BitmapShader;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.ColorFilter;
+import android.graphics.RecordingCanvas;
+import android.graphics.Rect;
+import android.graphics.RenderEffect;
+import android.graphics.RuntimeShader;
+import android.graphics.Shader;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.ColorDrawable;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.view.ViewGroup;
+import android.view.ViewTreeObserver;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.SeekBar;
+import android.widget.TextView;
+
+public class StretchShaderActivity extends Activity {
+
+    private static final float MAX_STRETCH_INTENSITY = 1.5f;
+    private static final float STRETCH_AFFECTED_DISTANCE = 1.0f;
+
+    private float mScrollX = 0f;
+    private float mScrollY = 0f;
+
+    private float mMaxStretchIntensity = MAX_STRETCH_INTENSITY;
+    private float mStretchAffectedDistance = STRETCH_AFFECTED_DISTANCE;
+
+    private float mOverscrollX = 25f;
+    private float mOverscrollY = 25f;
+
+    private RuntimeShader mRuntimeShader;
+    private ImageView mImageView;
+    private ImageView mTestImageView;
+
+    private Bitmap mBitmap;
+
+    private StretchDrawable mStretchDrawable = new StretchDrawable();
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        LinearLayout linearLayout = new LinearLayout(this);
+        linearLayout.setOrientation(LinearLayout.VERTICAL);
+
+        mBitmap = ((BitmapDrawable) getDrawable(R.drawable.sunset1)).getBitmap();
+        mRuntimeShader = new RuntimeShader(SKSL, false);
+
+        BitmapShader bitmapShader = new BitmapShader(mBitmap, Shader.TileMode.CLAMP,
+                Shader.TileMode.CLAMP);
+        mRuntimeShader.setInputShader("uContentTexture", bitmapShader);
+
+        mImageView = new ImageView(this);
+
+        mImageView.setRenderEffect(RenderEffect.createShaderEffect(mRuntimeShader));
+        mImageView.setImageDrawable(new ColorDrawable(Color.CYAN));
+
+        TextView overscrollXText = new TextView(this);
+        overscrollXText.setText("Overscroll X");
+
+        SeekBar overscrollXBar = new SeekBar(this);
+        overscrollXBar.setProgress(0);
+        overscrollXBar.setMin(-50);
+        overscrollXBar.setMax(50);
+        overscrollXBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
+            @Override
+            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+                mOverscrollX = progress;
+                overscrollXText.setText("Overscroll X: " + mOverscrollX);
+                updateShader();
+            }
+
+            @Override
+            public void onStartTrackingTouch(SeekBar seekBar) {
+
+            }
+
+            @Override
+            public void onStopTrackingTouch(SeekBar seekBar) {
+
+            }
+        });
+
+        TextView overscrollYText = new TextView(this);
+        overscrollYText.setText("Overscroll Y");
+
+        SeekBar overscrollYBar = new SeekBar(this);
+        overscrollYBar.setProgress(0);
+        overscrollYBar.setMin(-50);
+        overscrollYBar.setMax(50);
+        overscrollYBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
+            @Override
+            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+                mOverscrollY = progress;
+                overscrollYText.setText("Overscroll Y: " + mOverscrollY);
+                updateShader();
+            }
+
+            @Override
+            public void onStartTrackingTouch(SeekBar seekBar) {
+
+            }
+
+            @Override
+            public void onStopTrackingTouch(SeekBar seekBar) {
+
+            }
+        });
+
+        TextView scrollXText = new TextView(this);
+        scrollXText.setText("Scroll X");
+        SeekBar scrollXSeekBar = new SeekBar(this);
+        scrollXSeekBar.setMin(0);
+        scrollXSeekBar.setMax(100);
+        scrollXSeekBar.setProgress(0);
+        scrollXSeekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
+            @Override
+            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+                mScrollX = (progress / 100f);
+                scrollXText.setText("Scroll X: " + mScrollY);
+                updateShader();
+            }
+
+            @Override
+            public void onStartTrackingTouch(SeekBar seekBar) {
+
+            }
+
+            @Override
+            public void onStopTrackingTouch(SeekBar seekBar) {
+
+            }
+        });
+
+        TextView scrollYText = new TextView(this);
+        scrollYText.setText("Scroll Y");
+        SeekBar scrollYSeekBar = new SeekBar(this);
+        scrollYSeekBar.setMin(0);
+        scrollYSeekBar.setMax(100);
+        scrollYSeekBar.setProgress(0);
+        scrollYSeekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
+            @Override
+            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+                mScrollY = (progress / 100f);
+                scrollYText.setText("Scroll Y: " + mScrollY);
+                updateShader();
+            }
+
+            @Override
+            public void onStartTrackingTouch(SeekBar seekBar) {
+
+            }
+
+            @Override
+            public void onStopTrackingTouch(SeekBar seekBar) {
+
+            }
+        });
+
+        TextView stretchIntensityText = new TextView(this);
+        int stretchProgress = (int) (mMaxStretchIntensity * 100);
+        stretchIntensityText.setText("StretchIntensity: " + mMaxStretchIntensity);
+        SeekBar stretchIntensitySeekbar = new SeekBar(this);
+        stretchIntensitySeekbar.setProgress(stretchProgress);
+        stretchIntensitySeekbar.setMin(1);
+        stretchIntensitySeekbar.setMax((int) (MAX_STRETCH_INTENSITY * 100));
+        stretchIntensitySeekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
+            @Override
+            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+                mMaxStretchIntensity = progress / 100f;
+                stretchIntensityText.setText("StretchIntensity: " + mMaxStretchIntensity);
+                updateShader();
+            }
+
+            @Override
+            public void onStartTrackingTouch(SeekBar seekBar) {
+
+            }
+
+            @Override
+            public void onStopTrackingTouch(SeekBar seekBar) {
+
+            }
+        });
+
+        TextView stretchDistanceText = new TextView(this);
+        stretchDistanceText.setText("StretchDistance");
+        SeekBar stretchDistanceSeekbar = new SeekBar(this);
+        stretchDistanceSeekbar.setMin(0);
+        stretchDistanceSeekbar.setProgress((int) (mStretchAffectedDistance * 100));
+        stretchDistanceSeekbar.setMax(100);
+        stretchDistanceSeekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
+            @Override
+            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+                mStretchAffectedDistance = progress / 100f;
+                stretchDistanceText.setText("StretchDistance: " + mStretchAffectedDistance);
+                updateShader();
+            }
+
+            @Override
+            public void onStartTrackingTouch(SeekBar seekBar) {
+
+            }
+
+            @Override
+            public void onStopTrackingTouch(SeekBar seekBar) {
+
+            }
+        });
+
+
+        linearLayout.addView(mImageView,
+                new LinearLayout.LayoutParams(
+                        mBitmap.getWidth(),
+                        mBitmap.getHeight())
+        );
+
+        linearLayout.addView(overscrollXText,
+                new LinearLayout.LayoutParams(
+                        LinearLayout.LayoutParams.WRAP_CONTENT,
+                        LinearLayout.LayoutParams.WRAP_CONTENT
+                ));
+        linearLayout.addView(overscrollXBar,
+                new LinearLayout.LayoutParams(
+                        ViewGroup.LayoutParams.MATCH_PARENT,
+                        ViewGroup.LayoutParams.WRAP_CONTENT
+                )
+        );
+
+        linearLayout.addView(overscrollYText,
+                new LinearLayout.LayoutParams(
+                        LinearLayout.LayoutParams.WRAP_CONTENT,
+                        LinearLayout.LayoutParams.WRAP_CONTENT
+                ));
+        linearLayout.addView(overscrollYBar,
+                new LinearLayout.LayoutParams(
+                        ViewGroup.LayoutParams.MATCH_PARENT,
+                        ViewGroup.LayoutParams.WRAP_CONTENT
+                )
+        );
+
+        linearLayout.addView(scrollXText,
+                new LinearLayout.LayoutParams(
+                        LinearLayout.LayoutParams.WRAP_CONTENT,
+                        LinearLayout.LayoutParams.WRAP_CONTENT
+                ));
+
+        linearLayout.addView(scrollXSeekBar,
+                new LinearLayout.LayoutParams(
+                        ViewGroup.LayoutParams.MATCH_PARENT,
+                        ViewGroup.LayoutParams.WRAP_CONTENT
+                ));
+
+        linearLayout.addView(scrollYText,
+                new LinearLayout.LayoutParams(
+                        LinearLayout.LayoutParams.WRAP_CONTENT,
+                        LinearLayout.LayoutParams.WRAP_CONTENT
+                ));
+
+        linearLayout.addView(scrollYSeekBar,
+                new LinearLayout.LayoutParams(
+                        ViewGroup.LayoutParams.MATCH_PARENT,
+                        ViewGroup.LayoutParams.WRAP_CONTENT
+                ));
+
+        linearLayout.addView(stretchIntensityText,
+                new LinearLayout.LayoutParams(
+                        LinearLayout.LayoutParams.WRAP_CONTENT,
+                        LinearLayout.LayoutParams.WRAP_CONTENT
+                )
+        );
+
+        linearLayout.addView(stretchIntensitySeekbar,
+                new LinearLayout.LayoutParams(
+                        LinearLayout.LayoutParams.MATCH_PARENT,
+                        LinearLayout.LayoutParams.WRAP_CONTENT
+                )
+        );
+
+        linearLayout.addView(stretchDistanceText,
+                new LinearLayout.LayoutParams(
+                        LinearLayout.LayoutParams.WRAP_CONTENT,
+                        LinearLayout.LayoutParams.WRAP_CONTENT
+                ));
+
+        linearLayout.addView(stretchDistanceSeekbar,
+                new LinearLayout.LayoutParams(
+                        LinearLayout.LayoutParams.MATCH_PARENT,
+                        LinearLayout.LayoutParams.WRAP_CONTENT
+                ));
+
+        ImageView test = new ImageView(this);
+        mStretchDrawable.setBitmap(mBitmap);
+        test.setImageDrawable(mStretchDrawable);
+
+        mTestImageView = test;
+        linearLayout.addView(test,
+                new LinearLayout.LayoutParams(mBitmap.getWidth(), mBitmap.getHeight()));
+
+        setContentView(linearLayout);
+
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        mImageView.getViewTreeObserver().addOnPreDrawListener(
+                new ViewTreeObserver.OnPreDrawListener() {
+                    @Override
+                    public boolean onPreDraw() {
+                        updateShader();
+                        mImageView.getViewTreeObserver().removeOnPreDrawListener(this);
+                        return false;
+                    }
+                });
+    }
+
+    private void updateShader() {
+        final float width = mImageView.getWidth();
+        final float height = mImageView.getHeight();
+        final float distanceNotStretched = mStretchAffectedDistance;
+        final float normOverScrollDistX = mOverscrollX / width;
+        final float normOverScrollDistY = mOverscrollY / height;
+        final float distanceStretchedX =
+                mStretchAffectedDistance
+                        / (1 + Math.abs(normOverScrollDistX) * mMaxStretchIntensity);
+        final float distanceStretchedY =
+                mStretchAffectedDistance
+                        / (1 + Math.abs(normOverScrollDistY) * mMaxStretchIntensity);
+        final float diffX = distanceStretchedX - distanceNotStretched;
+        final float diffY = distanceStretchedY - distanceNotStretched;
+        float uScrollX = mScrollX;
+        float uScrollY = mScrollY;
+
+        mRuntimeShader.setUniform("uMaxStretchIntensity", mMaxStretchIntensity);
+        mRuntimeShader.setUniform("uStretchAffectedDist", mStretchAffectedDistance);
+        mRuntimeShader.setUniform("uDistanceStretchedX", distanceStretchedX);
+        mRuntimeShader.setUniform("uDistanceStretchedY", distanceStretchedY);
+        mRuntimeShader.setUniform("uDistDiffX", diffX);
+        mRuntimeShader.setUniform("uDistDiffY", diffY);
+        mRuntimeShader.setUniform("uOverscrollX", normOverScrollDistX);
+        mRuntimeShader.setUniform("uOverscrollY", normOverScrollDistY);
+        mRuntimeShader.setUniform("uScrollX", uScrollX);
+        mRuntimeShader.setUniform("uScrollY", uScrollY);
+        mRuntimeShader.setUniform("viewportWidth", width);
+        mRuntimeShader.setUniform("viewportHeight", height);
+
+        mImageView.setRenderEffect(RenderEffect.createShaderEffect(mRuntimeShader));
+
+        mStretchDrawable.setStretchDistance(mStretchAffectedDistance);
+        mStretchDrawable.setOverscrollX(normOverScrollDistX);
+        mStretchDrawable.setOverscrollY(normOverScrollDistY);
+    }
+
+    private static class StretchDrawable extends Drawable {
+
+        private float mStretchDistance = 0;
+        private float mOverScrollX = 0f;
+        private float mOverScrollY = 0f;
+        private Bitmap mBitmap = null;
+
+        public void setStretchDistance(float stretchDistance) {
+            mStretchDistance = stretchDistance;
+            invalidateSelf();
+        }
+
+        public void setOverscrollX(float overscrollX) {
+            mOverScrollX = overscrollX;
+            invalidateSelf();
+        }
+
+        public void setOverscrollY(float overscrollY) {
+            mOverScrollY = overscrollY;
+            invalidateSelf();
+        }
+
+        public void setBitmap(Bitmap bitmap) {
+            mBitmap = bitmap;
+            invalidateSelf();
+        }
+
+        @Override
+        public void draw(Canvas canvas) {
+            if (mStretchDistance > 0 && canvas instanceof RecordingCanvas) {
+                Rect bounds = getBounds();
+                ((RecordingCanvas) canvas).mNode.stretch(
+                        0,
+                        0,
+                        bounds.width(),
+                        bounds.height(),
+                        mOverScrollX,
+                        mOverScrollY,
+                        mStretchDistance
+                );
+            }
+            if (mBitmap != null) {
+                canvas.drawBitmap(mBitmap, 0f, 0f, null);
+            }
+        }
+
+        @Override
+        public void setAlpha(int alpha) {
+
+        }
+
+        @Override
+        public void setColorFilter(ColorFilter colorFilter) {
+
+        }
+
+        @Override
+        public int getOpacity() {
+            return 0;
+        }
+    }
+
+    private static final String SKSL = "in shader uContentTexture;\n"
+            + "uniform float uMaxStretchIntensity; // multiplier to apply to scale effect\n"
+            + "uniform float uStretchAffectedDist; // Maximum percentage to stretch beyond bounds"
+            + " of target\n"
+            + "\n"
+            + "// Distance stretched as a function of the normalized overscroll times scale "
+            + "intensity\n"
+            + "uniform float uDistanceStretchedX;\n"
+            + "uniform float uDistanceStretchedY;\n"
+            + "uniform float uDistDiffX;\n"
+            + "uniform float uDistDiffY; // Difference between the peak stretch amount and "
+            + "overscroll amount normalized\n"
+            + "uniform float uScrollX; // Horizontal offset represented as a ratio of pixels "
+            + "divided by the target width\n"
+            + "uniform float uScrollY; // Vertical offset represented as a ratio of pixels "
+            + "divided by the target height\n"
+            + "uniform float uOverscrollX; // Normalized overscroll amount in the horizontal "
+            + "direction\n"
+            + "uniform float uOverscrollY; // Normalized overscroll amount in the vertical "
+            + "direction\n"
+            + "\n"
+            + "uniform float viewportWidth; // target height in pixels\n"
+            + "uniform float viewportHeight; // target width in pixels\n"
+            + "\n"
+            + "vec4 main(vec2 coord) {\n"
+            + "\n"
+            + "    // Normalize SKSL pixel coordinate into a unit vector\n"
+            + "    vec2 uv = vec2(coord.x / viewportWidth, coord.y / viewportHeight);\n"
+            + "    float inU = uv.x;\n"
+            + "    float inV = uv.y;\n"
+            + "    float outU;\n"
+            + "    float outV;\n"
+            + "    float stretchIntensity;\n"
+            + "\n"
+            + "    // Add the normalized scroll position within scrolling list\n"
+            + "    inU += uScrollX;\n"
+            + "    inV += uScrollY;\n"
+            + "\n"
+            + "    outU = inU;\n"
+            + "    outV = inV;\n"
+            + "    if (uOverscrollX > 0) {\n"
+            + "        if (inU <= uStretchAffectedDist) {\n"
+            + "            inU = uStretchAffectedDist - inU;\n"
+            + "            float posBasedVariation = smoothstep(0., uStretchAffectedDist, inU);\n"
+            + "            stretchIntensity = uMaxStretchIntensity * uOverscrollX * "
+            + "posBasedVariation;\n"
+            + "            outU = uDistanceStretchedX - (inU / (1. + stretchIntensity));\n"
+            + "        } else {\n"
+            + "            outU = uDistDiffX + inU;\n"
+            + "        }\n"
+            + "    }\n"
+            + "\n"
+            + "     if (uOverscrollX < 0) {\n"
+            + "            float stretchAffectedDist = 1. - uStretchAffectedDist;\n"
+            + "            if (inU >= stretchAffectedDist) {\n"
+            + "                inU = inU - stretchAffectedDist;\n"
+            + "                float posBasedVariation = (smoothstep(0., uStretchAffectedDist, "
+            + "inU));\n"
+            + "                stretchIntensity = uMaxStretchIntensity * (-uOverscrollX) * "
+            + "posBasedVariation;\n"
+            + "                outU = 1 - (uDistanceStretchedX - (inU / (1. + stretchIntensity)))"
+            + ";\n"
+            + "            } else if (inU < stretchAffectedDist) {\n"
+            + "                outU = -uDistDiffX + inU;\n"
+            + "            }\n"
+            + "        }\n"
+            + "\n"
+            + "    if (uOverscrollY > 0) {\n"
+            + "        if (inV <= uStretchAffectedDist) {\n"
+            + "            inV = uStretchAffectedDist - inV;\n"
+            + "            float posBasedVariation = smoothstep(0., uStretchAffectedDist, inV);\n"
+            + "            stretchIntensity = uMaxStretchIntensity * uOverscrollY * "
+            + "posBasedVariation;\n"
+            + "            outV = uDistanceStretchedY - (inV / (1. + stretchIntensity));\n"
+            + "        } else if (inV >= uStretchAffectedDist) {\n"
+            + "            outV = uDistDiffY + inV;\n"
+            + "        }\n"
+            + "    }\n"
+            + "\n"
+            + "    if (uOverscrollY < 0) {\n"
+            + "        float stretchAffectedDist = 1. - uStretchAffectedDist;\n"
+            + "        if (inV >= stretchAffectedDist) {\n"
+            + "            inV = inV - stretchAffectedDist;\n"
+            + "            float posBasedVariation = (smoothstep(0., uStretchAffectedDist, inV));\n"
+            + "            stretchIntensity = uMaxStretchIntensity * (-uOverscrollY) * "
+            + "posBasedVariation;\n"
+            + "            outV = 1 - (uDistanceStretchedY - (inV / (1. + stretchIntensity)));\n"
+            + "        } else if (inV < stretchAffectedDist) {\n"
+            + "            outV = -uDistDiffY + inV;\n"
+            + "        }\n"
+            + "    }\n"
+            + "\n"
+            + "    uv.x = outU;\n"
+            + "    uv.y = outV;\n"
+            + "    coord.x = uv.x * viewportWidth;\n"
+            + "    coord.y = uv.y * viewportHeight;\n"
+            + "    return sample(uContentTexture, coord);\n"
+            + "}";
+}
diff --git a/tests/net/common/java/android/net/CaptivePortalTest.java b/tests/net/common/java/android/net/CaptivePortalTest.java
index 4cdf6a2..15d3398 100644
--- a/tests/net/common/java/android/net/CaptivePortalTest.java
+++ b/tests/net/common/java/android/net/CaptivePortalTest.java
@@ -25,6 +25,7 @@
 import androidx.test.runner.AndroidJUnit4;
 
 import com.android.testutils.DevSdkIgnoreRule;
+import com.android.testutils.DevSdkIgnoreRule.IgnoreAfter;
 import com.android.testutils.DevSdkIgnoreRule.IgnoreUpTo;
 
 import org.junit.Rule;
@@ -53,6 +54,12 @@
         public void appRequest(final int request) throws RemoteException {
             mCode = request;
         }
+
+        // This is only @Override on R-
+        public void logEvent(int eventId, String packageName) throws RemoteException {
+            mCode = eventId;
+            mPackageName = packageName;
+        }
     }
 
     private interface TestFunctor {
@@ -91,14 +98,24 @@
         assertEquals(result.mCode, CaptivePortal.APP_REQUEST_REEVALUATION_REQUIRED);
     }
 
-    /**
-     * Test testLogEvent is expected to do nothing but shouldn't crash, because the API logEvent
-     * has been deprecated.
-     */
+    @IgnoreUpTo(Build.VERSION_CODES.R)
     @Test
     public void testLogEvent() {
+        /**
+        * From S testLogEvent is expected to do nothing but shouldn't crash (the API
+        * logEvent has been deprecated).
+        */
         final MyCaptivePortalImpl result = runCaptivePortalTest(c -> c.logEvent(
                 0,
                 TEST_PACKAGE_NAME));
     }
+
+    @IgnoreAfter(Build.VERSION_CODES.R)
+    @Test
+    public void testLogEvent_UntilR() {
+        final MyCaptivePortalImpl result = runCaptivePortalTest(c -> c.logEvent(
+                42, TEST_PACKAGE_NAME));
+        assertEquals(result.mCode, 42);
+        assertEquals(result.mPackageName, TEST_PACKAGE_NAME);
+    }
 }
diff --git a/tests/net/java/android/net/util/MultinetworkPolicyTrackerTest.kt b/tests/net/java/android/net/util/MultinetworkPolicyTrackerTest.kt
index 9b0cfa9..c1315f6 100644
--- a/tests/net/java/android/net/util/MultinetworkPolicyTrackerTest.kt
+++ b/tests/net/java/android/net/util/MultinetworkPolicyTrackerTest.kt
@@ -21,7 +21,7 @@
 import android.net.ConnectivityManager.MULTIPATH_PREFERENCE_HANDOVER
 import android.net.ConnectivityManager.MULTIPATH_PREFERENCE_PERFORMANCE
 import android.net.ConnectivityManager.MULTIPATH_PREFERENCE_RELIABILITY
-import android.net.util.MultinetworkPolicyTracker.ActiveDataSubscriptionIdChangedListener
+import android.net.util.MultinetworkPolicyTracker.ActiveDataSubscriptionIdListener
 import android.provider.Settings
 import android.provider.Settings.Global.NETWORK_AVOID_BAD_WIFI
 import android.provider.Settings.Global.NETWORK_METERED_MULTIPATH_PREFERENCE
@@ -120,9 +120,9 @@
                 MULTIPATH_PREFERENCE_PERFORMANCE.toString())
 
         val listenerCaptor = ArgumentCaptor.forClass(
-                ActiveDataSubscriptionIdChangedListener::class.java)
+                ActiveDataSubscriptionIdListener::class.java)
         verify(telephonyManager, times(1))
-                .registerPhoneStateListener(any(), listenerCaptor.capture())
+                .registerTelephonyCallback(any(), listenerCaptor.capture())
         val listener = listenerCaptor.value
         listener.onActiveDataSubscriptionIdChanged(testSubId)
 
diff --git a/tests/net/java/com/android/server/ConnectivityServiceTest.java b/tests/net/java/com/android/server/ConnectivityServiceTest.java
index 3bc15a3..de74f38 100644
--- a/tests/net/java/com/android/server/ConnectivityServiceTest.java
+++ b/tests/net/java/com/android/server/ConnectivityServiceTest.java
@@ -103,6 +103,7 @@
 import static com.android.testutils.ConcurrentUtils.durationOf;
 import static com.android.testutils.ExceptionUtils.ignoreExceptions;
 import static com.android.testutils.HandlerUtils.waitForIdleSerialExecutor;
+import static com.android.testutils.MiscAsserts.assertContainsAll;
 import static com.android.testutils.MiscAsserts.assertContainsExactly;
 import static com.android.testutils.MiscAsserts.assertEmpty;
 import static com.android.testutils.MiscAsserts.assertLength;
@@ -203,6 +204,7 @@
 import android.net.NetworkSpecifier;
 import android.net.NetworkStack;
 import android.net.NetworkStackClient;
+import android.net.NetworkStateSnapshot;
 import android.net.NetworkTestResultParcelable;
 import android.net.OemNetworkPreferences;
 import android.net.ProxyInfo;
@@ -415,6 +417,8 @@
     private QosCallbackMockHelper mQosCallbackMockHelper;
     private QosCallbackTracker mQosCallbackTracker;
     private VpnManagerService mVpnManagerService;
+    private TestNetworkCallback mDefaultNetworkCallback;
+    private TestNetworkCallback mSystemDefaultNetworkCallback;
 
     // State variables required to emulate NetworkPolicyManagerService behaviour.
     private int mUidRules = RULE_NONE;
@@ -1555,6 +1559,7 @@
 
     @After
     public void tearDown() throws Exception {
+        unregisterDefaultNetworkCallbacks();
         setAlwaysOnNetworks(false);
         if (mCellNetworkAgent != null) {
             mCellNetworkAgent.disconnect();
@@ -1660,6 +1665,7 @@
         assertNull(mCm.getActiveNetworkForUid(Process.myUid()));
         // Test getAllNetworks()
         assertEmpty(mCm.getAllNetworks());
+        assertEmpty(mCm.getAllNetworkStateSnapshot());
     }
 
     /**
@@ -9495,6 +9501,10 @@
         fail("TOO_MANY_REQUESTS never thrown");
     }
 
+    private UidRange createUidRange(int userId) {
+        return UidRange.createForUser(UserHandle.of(userId));
+    }
+
     private void mockGetApplicationInfo(@NonNull final String packageName, @NonNull final int uid)
             throws Exception {
         final ApplicationInfo applicationInfo = new ApplicationInfo();
@@ -9829,6 +9839,54 @@
             assertEquals(expectedPerAppNetwork, defaultNetwork);
             assertEquals(expectedOemRequestsSize, defaultRequest.mRequests.size());
         }
+        verifyMultipleDefaultCallbacks(expectedDefaultNetwork, expectedPerAppNetwork);
+    }
+
+    /**
+     * Verify default callbacks for 'available' fire as expected. This will only run if
+     * registerDefaultNetworkCallbacks() was executed prior and will only be different if the
+     * setOemNetworkPreference() per-app API was used for the current process.
+     * @param expectedSystemDefault the expected network for the system default.
+     * @param expectedPerAppDefault the expected network for the current process's default.
+     */
+    private void verifyMultipleDefaultCallbacks(
+            @NonNull final Network expectedSystemDefault,
+            @NonNull final Network expectedPerAppDefault) {
+        if (null != mSystemDefaultNetworkCallback && null != expectedSystemDefault
+                && mService.mNoServiceNetwork.network() != expectedSystemDefault) {
+            // getLastAvailableNetwork() is used as this method can be called successively with
+            // the same network to validate therefore expectAvailableThenValidatedCallbacks
+            // can't be used.
+            assertEquals(mSystemDefaultNetworkCallback.getLastAvailableNetwork(),
+                    expectedSystemDefault);
+        }
+        if (null != mDefaultNetworkCallback && null != expectedPerAppDefault
+                && mService.mNoServiceNetwork.network() != expectedPerAppDefault) {
+            assertEquals(mDefaultNetworkCallback.getLastAvailableNetwork(),
+                    expectedPerAppDefault);
+        }
+    }
+
+    private void registerDefaultNetworkCallbacks() {
+        // Using Manifest.permission.NETWORK_SETTINGS for registerSystemDefaultNetworkCallback()
+        mServiceContext.setPermission(
+                Manifest.permission.NETWORK_SETTINGS, PERMISSION_GRANTED);
+        mSystemDefaultNetworkCallback = new TestNetworkCallback();
+        mDefaultNetworkCallback = new TestNetworkCallback();
+        mCm.registerSystemDefaultNetworkCallback(mSystemDefaultNetworkCallback,
+                new Handler(ConnectivityThread.getInstanceLooper()));
+        mCm.registerDefaultNetworkCallback(mDefaultNetworkCallback);
+        mServiceContext.setPermission(
+                Manifest.permission.NETWORK_SETTINGS, PERMISSION_DENIED);
+    }
+
+    private void unregisterDefaultNetworkCallbacks() {
+        if (null != mDefaultNetworkCallback) {
+            mCm.unregisterNetworkCallback(mDefaultNetworkCallback);
+        }
+        if (null != mSystemDefaultNetworkCallback) {
+            mCm.unregisterNetworkCallback(mSystemDefaultNetworkCallback);
+        }
     }
 
     private void setupMultipleDefaultNetworksForOemNetworkPreferenceNotCurrentUidTest(
@@ -9911,6 +9969,7 @@
         @OemNetworkPreferences.OemNetworkPreference final int networkPref =
                 OEM_NETWORK_PREFERENCE_OEM_PAID_ONLY;
         final int expectedOemPrefRequestSize = 1;
+        registerDefaultNetworkCallbacks();
 
         // Setup the test process to use networkPref for their default network.
         setupMultipleDefaultNetworksForOemNetworkPreferenceCurrentUidTest(networkPref);
@@ -9925,6 +9984,7 @@
 
         // Verify that the active network is correct
         verifyActiveNetwork(TRANSPORT_ETHERNET);
+        // default NCs will be unregistered in tearDown
     }
 
     @Test
@@ -9932,6 +9992,7 @@
         @OemNetworkPreferences.OemNetworkPreference final int networkPref =
                 OEM_NETWORK_PREFERENCE_OEM_PAID_ONLY;
         final int expectedOemPrefRequestSize = 1;
+        registerDefaultNetworkCallbacks();
 
         // Setup the test process to use networkPref for their default network.
         setupMultipleDefaultNetworksForOemNetworkPreferenceCurrentUidTest(networkPref);
@@ -9952,6 +10013,7 @@
                 mEthernetNetworkAgent.getNetwork());
 
         assertFalse(mCm.isActiveNetworkMetered());
+        // default NCs will be unregistered in tearDown
     }
 
     @Test
@@ -10108,7 +10170,6 @@
 
     /**
      * Test the tracked default requests clear previous OEM requests on setOemNetworkPreference().
-     * @throws Exception
      */
     @Test
     public void testSetOemNetworkPreferenceClearPreviousOemValues() throws Exception {
@@ -10136,9 +10197,8 @@
     }
 
     /**
-     * Test network priority for preference OEM_NETWORK_PREFERENCE_OEM_PAID following in order:
+     * Test network priority for preference OEM_NETWORK_PREFERENCE_OEM_PAID in the following order:
      * NET_CAPABILITY_NOT_METERED -> NET_CAPABILITY_OEM_PAID -> fallback
-     * @throws Exception
      */
     @Test
     public void testMultilayerForPreferenceOemPaidEvaluatesCorrectly()
@@ -10204,9 +10264,8 @@
     }
 
     /**
-     * Test network priority for OEM_NETWORK_PREFERENCE_OEM_PAID_NO_FALLBACK following in order:
+     * Test network priority for OEM_NETWORK_PREFERENCE_OEM_PAID_NO_FALLBACK in the following order:
      * NET_CAPABILITY_NOT_METERED -> NET_CAPABILITY_OEM_PAID
-     * @throws Exception
      */
     @Test
     public void testMultilayerForPreferenceOemPaidNoFallbackEvaluatesCorrectly()
@@ -10267,10 +10326,9 @@
     }
 
     /**
-     * Test network priority for OEM_NETWORK_PREFERENCE_OEM_PAID_ONLY following in order:
+     * Test network priority for OEM_NETWORK_PREFERENCE_OEM_PAID_ONLY in the following order:
      * NET_CAPABILITY_OEM_PAID
      * This preference should only apply to OEM_PAID networks.
-     * @throws Exception
      */
     @Test
     public void testMultilayerForPreferenceOemPaidOnlyEvaluatesCorrectly()
@@ -10321,10 +10379,9 @@
     }
 
     /**
-     * Test network priority for OEM_NETWORK_PREFERENCE_OEM_PRIVATE_ONLY following in order:
+     * Test network priority for OEM_NETWORK_PREFERENCE_OEM_PRIVATE_ONLY in the following order:
      * NET_CAPABILITY_OEM_PRIVATE
      * This preference should only apply to OEM_PRIVATE networks.
-     * @throws Exception
      */
     @Test
     public void testMultilayerForPreferenceOemPrivateOnlyEvaluatesCorrectly()
@@ -10374,7 +10431,314 @@
                 true /* shouldDestroyNetwork */);
     }
 
-    private UidRange createUidRange(int userId) {
-        return UidRange.createForUser(UserHandle.of(userId));
+    /**
+     * Test network priority for preference OEM_NETWORK_PREFERENCE_OEM_PAID in the following order:
+     * NET_CAPABILITY_NOT_METERED -> NET_CAPABILITY_OEM_PAID -> fallback
+     */
+    @Test
+    public void testMultipleDefaultNetworksTracksOemNetworkPreferenceOemPaidCorrectly()
+            throws Exception {
+        @OemNetworkPreferences.OemNetworkPreference final int networkPref =
+                OemNetworkPreferences.OEM_NETWORK_PREFERENCE_OEM_PAID;
+        setupMultipleDefaultNetworksForOemNetworkPreferenceCurrentUidTest(networkPref);
+        final int expectedDefaultRequestSize = 2;
+        final int expectedOemPrefRequestSize = 3;
+        registerDefaultNetworkCallbacks();
+
+        // The fallback as well as the OEM preference should now be tracked.
+        assertEquals(expectedDefaultRequestSize, mService.mDefaultNetworkRequests.size());
+
+        // Test lowest to highest priority requests.
+        // Bring up metered cellular. This will satisfy the fallback network.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_CELLULAR, true);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                mCellNetworkAgent.getNetwork(),
+                mCellNetworkAgent.getNetwork());
+
+        // Bring up ethernet with OEM_PAID. This will satisfy NET_CAPABILITY_OEM_PAID.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_ETHERNET, true);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                mCellNetworkAgent.getNetwork(),
+                mEthernetNetworkAgent.getNetwork());
+
+        // Bring up unmetered Wi-Fi. This will satisfy NET_CAPABILITY_NOT_METERED.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_WIFI, true);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                mWiFiNetworkAgent.getNetwork(),
+                mWiFiNetworkAgent.getNetwork());
+
+        // Disconnecting unmetered Wi-Fi will put the pref on OEM_PAID and fallback on cellular.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_WIFI, false);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                mCellNetworkAgent.getNetwork(),
+                mEthernetNetworkAgent.getNetwork());
+
+        // Disconnecting cellular should keep OEM network on OEM_PAID and fallback will be null.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_CELLULAR, false);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                null,
+                mEthernetNetworkAgent.getNetwork());
+
+        // Disconnecting OEM_PAID will put both on null as it is the last network.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_ETHERNET, false);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                null,
+                null);
+
+        // default NCs will be unregistered in tearDown
+    }
+
+    /**
+     * Test network priority for OEM_NETWORK_PREFERENCE_OEM_PAID_NO_FALLBACK in the following order:
+     * NET_CAPABILITY_NOT_METERED -> NET_CAPABILITY_OEM_PAID
+     */
+    @Test
+    public void testMultipleDefaultNetworksTracksOemNetworkPreferenceOemPaidNoFallbackCorrectly()
+            throws Exception {
+        @OemNetworkPreferences.OemNetworkPreference final int networkPref =
+                OemNetworkPreferences.OEM_NETWORK_PREFERENCE_OEM_PAID_NO_FALLBACK;
+        setupMultipleDefaultNetworksForOemNetworkPreferenceCurrentUidTest(networkPref);
+        final int expectedDefaultRequestSize = 2;
+        final int expectedOemPrefRequestSize = 2;
+        registerDefaultNetworkCallbacks();
+
+        // The fallback as well as the OEM preference should now be tracked.
+        assertEquals(expectedDefaultRequestSize, mService.mDefaultNetworkRequests.size());
+
+        // Test lowest to highest priority requests.
+        // Bring up metered cellular. This will satisfy the fallback network but not the pref.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_CELLULAR, true);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                mCellNetworkAgent.getNetwork(),
+                mService.mNoServiceNetwork.network());
+
+        // Bring up ethernet with OEM_PAID. This will satisfy NET_CAPABILITY_OEM_PAID.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_ETHERNET, true);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                mCellNetworkAgent.getNetwork(),
+                mEthernetNetworkAgent.getNetwork());
+
+        // Bring up unmetered Wi-Fi. This will satisfy NET_CAPABILITY_NOT_METERED.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_WIFI, true);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                mWiFiNetworkAgent.getNetwork(),
+                mWiFiNetworkAgent.getNetwork());
+
+        // Disconnecting unmetered Wi-Fi will put the OEM pref on OEM_PAID and fallback on cellular.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_WIFI, false);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                mCellNetworkAgent.getNetwork(),
+                mEthernetNetworkAgent.getNetwork());
+
+        // Disconnecting cellular should keep OEM network on OEM_PAID and fallback will be null.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_CELLULAR, false);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                null,
+                mEthernetNetworkAgent.getNetwork());
+
+        // Disconnecting OEM_PAID puts the fallback on null and the pref on the disconnected net.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_ETHERNET, false);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                null,
+                mService.mNoServiceNetwork.network());
+
+        // default NCs will be unregistered in tearDown
+    }
+
+    /**
+     * Test network priority for OEM_NETWORK_PREFERENCE_OEM_PAID_ONLY in the following order:
+     * NET_CAPABILITY_OEM_PAID
+     * This preference should only apply to OEM_PAID networks.
+     */
+    @Test
+    public void testMultipleDefaultNetworksTracksOemNetworkPreferenceOemPaidOnlyCorrectly()
+            throws Exception {
+        @OemNetworkPreferences.OemNetworkPreference final int networkPref =
+                OemNetworkPreferences.OEM_NETWORK_PREFERENCE_OEM_PAID_ONLY;
+        setupMultipleDefaultNetworksForOemNetworkPreferenceCurrentUidTest(networkPref);
+        final int expectedDefaultRequestSize = 2;
+        final int expectedOemPrefRequestSize = 1;
+        registerDefaultNetworkCallbacks();
+
+        // The fallback as well as the OEM preference should now be tracked.
+        assertEquals(expectedDefaultRequestSize, mService.mDefaultNetworkRequests.size());
+
+        // Test lowest to highest priority requests.
+        // Bring up metered cellular. This will satisfy the fallback network.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_CELLULAR, true);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                mCellNetworkAgent.getNetwork(),
+                mService.mNoServiceNetwork.network());
+
+        // Bring up ethernet with OEM_PAID. This will satisfy NET_CAPABILITY_OEM_PAID.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_ETHERNET, true);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                mCellNetworkAgent.getNetwork(),
+                mEthernetNetworkAgent.getNetwork());
+
+        // Bring up unmetered Wi-Fi. The OEM network shouldn't change, the fallback will take Wi-Fi.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_WIFI, true);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                mWiFiNetworkAgent.getNetwork(),
+                mEthernetNetworkAgent.getNetwork());
+
+        // Disconnecting unmetered Wi-Fi shouldn't change the OEM network with fallback on cellular.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_WIFI, false);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                mCellNetworkAgent.getNetwork(),
+                mEthernetNetworkAgent.getNetwork());
+
+        // Disconnecting OEM_PAID will keep the fallback on cellular and nothing for OEM_PAID.
+        // OEM_PAID_ONLY not supporting a fallback now uses the disconnected network.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_ETHERNET, false);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                mCellNetworkAgent.getNetwork(),
+                mService.mNoServiceNetwork.network());
+
+        // Disconnecting cellular will put the fallback on null and the pref on disconnected.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_CELLULAR, false);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                null,
+                mService.mNoServiceNetwork.network());
+
+        // default NCs will be unregistered in tearDown
+    }
+
+    /**
+     * Test network priority for OEM_NETWORK_PREFERENCE_OEM_PRIVATE_ONLY in the following order:
+     * NET_CAPABILITY_OEM_PRIVATE
+     * This preference should only apply to OEM_PRIVATE networks.
+     */
+    @Test
+    public void testMultipleDefaultNetworksTracksOemNetworkPreferenceOemPrivateOnlyCorrectly()
+            throws Exception {
+        @OemNetworkPreferences.OemNetworkPreference final int networkPref =
+                OemNetworkPreferences.OEM_NETWORK_PREFERENCE_OEM_PRIVATE_ONLY;
+        setupMultipleDefaultNetworksForOemNetworkPreferenceCurrentUidTest(networkPref);
+        final int expectedDefaultRequestSize = 2;
+        final int expectedOemPrefRequestSize = 1;
+        registerDefaultNetworkCallbacks();
+
+        // The fallback as well as the OEM preference should now be tracked.
+        assertEquals(expectedDefaultRequestSize, mService.mDefaultNetworkRequests.size());
+
+        // Test lowest to highest priority requests.
+        // Bring up metered cellular. This will satisfy the fallback network.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_CELLULAR, true);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                mCellNetworkAgent.getNetwork(),
+                mService.mNoServiceNetwork.network());
+
+        // Bring up ethernet with OEM_PRIVATE. This will satisfy NET_CAPABILITY_OEM_PRIVATE.
+        startOemManagedNetwork(false);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                mCellNetworkAgent.getNetwork(),
+                mEthernetNetworkAgent.getNetwork());
+
+        // Bring up unmetered Wi-Fi. The OEM network shouldn't change, the fallback will take Wi-Fi.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_WIFI, true);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                mWiFiNetworkAgent.getNetwork(),
+                mEthernetNetworkAgent.getNetwork());
+
+        // Disconnecting unmetered Wi-Fi shouldn't change the OEM network with fallback on cellular.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_WIFI, false);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                mCellNetworkAgent.getNetwork(),
+                mEthernetNetworkAgent.getNetwork());
+
+        // Disconnecting OEM_PRIVATE will keep the fallback on cellular.
+        // OEM_PRIVATE_ONLY not supporting a fallback now uses to the disconnected network.
+        stopOemManagedNetwork();
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                mCellNetworkAgent.getNetwork(),
+                mService.mNoServiceNetwork.network());
+
+        // Disconnecting cellular will put the fallback on null and pref on disconnected.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_CELLULAR, false);
+        verifyMultipleDefaultNetworksTracksCorrectly(expectedOemPrefRequestSize,
+                null,
+                mService.mNoServiceNetwork.network());
+
+        // default NCs will be unregistered in tearDown
+    }
+
+    @Test
+    public void testGetAllNetworkStateSnapshot() throws Exception {
+        verifyNoNetwork();
+
+        // Setup test cellular network with specified LinkProperties and NetworkCapabilities,
+        // verify the content of the snapshot matches.
+        final LinkProperties cellLp = new LinkProperties();
+        final LinkAddress myIpv4Addr = new LinkAddress(InetAddress.getByName("192.0.2.129"), 25);
+        final LinkAddress myIpv6Addr = new LinkAddress(InetAddress.getByName("2001:db8::1"), 64);
+        cellLp.setInterfaceName("test01");
+        cellLp.addLinkAddress(myIpv4Addr);
+        cellLp.addLinkAddress(myIpv6Addr);
+        cellLp.addRoute(new RouteInfo(InetAddress.getByName("fe80::1234")));
+        cellLp.addRoute(new RouteInfo(InetAddress.getByName("192.0.2.254")));
+        cellLp.addRoute(new RouteInfo(myIpv4Addr, null));
+        cellLp.addRoute(new RouteInfo(myIpv6Addr, null));
+        final NetworkCapabilities cellNcTemplate = new NetworkCapabilities.Builder()
+                .addTransportType(TRANSPORT_CELLULAR).addCapability(NET_CAPABILITY_MMS).build();
+
+        final TestNetworkCallback cellCb = new TestNetworkCallback();
+        mCm.requestNetwork(new NetworkRequest.Builder().addCapability(NET_CAPABILITY_MMS).build(),
+                cellCb);
+        mCellNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_CELLULAR, cellLp, cellNcTemplate);
+        mCellNetworkAgent.connect(true);
+        cellCb.expectAvailableCallbacksUnvalidated(mCellNetworkAgent);
+        List<NetworkStateSnapshot> snapshots = mCm.getAllNetworkStateSnapshot();
+        assertLength(1, snapshots);
+
+        // Compose the expected cellular snapshot for verification.
+        final NetworkCapabilities cellNc =
+                mCm.getNetworkCapabilities(mCellNetworkAgent.getNetwork());
+        final NetworkStateSnapshot cellSnapshot = new NetworkStateSnapshot(
+                mCellNetworkAgent.getNetwork(), cellNc, cellLp,
+                null, ConnectivityManager.TYPE_MOBILE);
+        assertEquals(cellSnapshot, snapshots.get(0));
+
+        // Connect wifi and verify the snapshots.
+        mWiFiNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI);
+        mWiFiNetworkAgent.connect(true);
+        waitForIdle();
+        // Compose the expected wifi snapshot for verification.
+        final NetworkCapabilities wifiNc =
+                mCm.getNetworkCapabilities(mWiFiNetworkAgent.getNetwork());
+        final NetworkStateSnapshot wifiSnapshot = new NetworkStateSnapshot(
+                mWiFiNetworkAgent.getNetwork(), wifiNc, new LinkProperties(), null,
+                ConnectivityManager.TYPE_WIFI);
+
+        snapshots = mCm.getAllNetworkStateSnapshot();
+        assertLength(2, snapshots);
+        assertContainsAll(snapshots, cellSnapshot, wifiSnapshot);
+
+        // Set cellular as suspended, verify the snapshots will not contain suspended networks.
+        // TODO: Consider include SUSPENDED networks, which should be considered as
+        //  temporary shortage of connectivity of a connected network.
+        mCellNetworkAgent.suspend();
+        waitForIdle();
+        snapshots = mCm.getAllNetworkStateSnapshot();
+        assertLength(1, snapshots);
+        assertEquals(wifiSnapshot, snapshots.get(0));
+
+        // Disconnect wifi, verify the snapshots contain nothing.
+        mWiFiNetworkAgent.disconnect();
+        waitForIdle();
+        snapshots = mCm.getAllNetworkStateSnapshot();
+        assertEquals(mCellNetworkAgent.getNetwork(), mCm.getActiveNetwork());
+        assertLength(0, snapshots);
+
+        mCellNetworkAgent.resume();
+        waitForIdle();
+        snapshots = mCm.getAllNetworkStateSnapshot();
+        assertLength(1, snapshots);
+        assertEquals(cellSnapshot, snapshots.get(0));
+
+        mCellNetworkAgent.disconnect();
+        waitForIdle();
+        verifyNoNetwork();
+        mCm.unregisterNetworkCallback(cellCb);
     }
 }