diff --git a/core/java/android/app/ActivityThread.java b/core/java/android/app/ActivityThread.java
index 3575545..f644185 100644
--- a/core/java/android/app/ActivityThread.java
+++ b/core/java/android/app/ActivityThread.java
@@ -2608,7 +2608,14 @@
                     break;
                 case EXECUTE_TRANSACTION:
                     final ClientTransaction transaction = (ClientTransaction) msg.obj;
-                    mTransactionExecutor.execute(transaction);
+                    final ClientTransactionListenerController controller =
+                            ClientTransactionListenerController.getInstance();
+                    controller.onClientTransactionStarted();
+                    try {
+                        mTransactionExecutor.execute(transaction);
+                    } finally {
+                        controller.onClientTransactionFinished();
+                    }
                     if (isSystem()) {
                         // Client transactions inside system process are recycled on the client side
                         // instead of ClientLifecycleManager to avoid being cleared before this
@@ -6747,6 +6754,21 @@
     void handleActivityConfigurationChanged(@NonNull ActivityClientRecord r,
             @NonNull Configuration overrideConfig, int displayId,
             @NonNull ActivityWindowInfo activityWindowInfo, boolean alwaysReportChange) {
+        final ClientTransactionListenerController controller =
+                ClientTransactionListenerController.getInstance();
+        final Context contextToUpdate = r.activity;
+        controller.onContextConfigurationPreChanged(contextToUpdate);
+        try {
+            handleActivityConfigurationChangedInner(r, overrideConfig, displayId,
+                    activityWindowInfo, alwaysReportChange);
+        } finally {
+            controller.onContextConfigurationPostChanged(contextToUpdate);
+        }
+    }
+
+    private void handleActivityConfigurationChangedInner(@NonNull ActivityClientRecord r,
+            @NonNull Configuration overrideConfig, int displayId,
+            @NonNull ActivityWindowInfo activityWindowInfo, boolean alwaysReportChange) {
         synchronized (mPendingOverrideConfigs) {
             final Configuration pendingOverrideConfig = mPendingOverrideConfigs.get(r.token);
             if (overrideConfig.isOtherSeqNewer(pendingOverrideConfig)) {
diff --git a/core/java/android/app/ConfigurationController.java b/core/java/android/app/ConfigurationController.java
index 18dc1ce..62a50db 100644
--- a/core/java/android/app/ConfigurationController.java
+++ b/core/java/android/app/ConfigurationController.java
@@ -21,6 +21,7 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.app.servertransaction.ClientTransactionListenerController;
 import android.content.ComponentCallbacks2;
 import android.content.Context;
 import android.content.res.CompatibilityInfo;
@@ -145,6 +146,24 @@
      */
     void handleConfigurationChanged(@Nullable Configuration config,
             @Nullable CompatibilityInfo compat) {
+        final ClientTransactionListenerController controller =
+                ClientTransactionListenerController.getInstance();
+        final Context contextToUpdate = ActivityThread.currentApplication();
+        controller.onContextConfigurationPreChanged(contextToUpdate);
+        try {
+            handleConfigurationChangedInner(config, compat);
+        } finally {
+            controller.onContextConfigurationPostChanged(contextToUpdate);
+        }
+    }
+
+    /**
+     * Update the configuration to latest.
+     * @param config The new configuration.
+     * @param compat The new compatibility information.
+     */
+    private void handleConfigurationChangedInner(@Nullable Configuration config,
+            @Nullable CompatibilityInfo compat) {
         int configDiff;
         boolean equivalent;
 
diff --git a/core/java/android/app/INotificationManager.aidl b/core/java/android/app/INotificationManager.aidl
index 8f81ae2..cf06416 100644
--- a/core/java/android/app/INotificationManager.aidl
+++ b/core/java/android/app/INotificationManager.aidl
@@ -50,8 +50,8 @@
     void cancelAllNotifications(String pkg, int userId);
 
     void clearData(String pkg, int uid, boolean fromApp);
-    void enqueueTextToast(String pkg, IBinder token, CharSequence text, int duration, boolean isUiContext, int displayId, @nullable ITransientNotificationCallback callback);
-    void enqueueToast(String pkg, IBinder token, ITransientNotification callback, int duration, boolean isUiContext, int displayId);
+    boolean enqueueTextToast(String pkg, IBinder token, CharSequence text, int duration, boolean isUiContext, int displayId, @nullable ITransientNotificationCallback callback);
+    boolean enqueueToast(String pkg, IBinder token, ITransientNotification callback, int duration, boolean isUiContext, int displayId);
     void cancelToast(String pkg, IBinder token);
     void finishToken(String pkg, IBinder token);
 
diff --git a/core/java/android/app/servertransaction/ClientTransactionItem.java b/core/java/android/app/servertransaction/ClientTransactionItem.java
index a8d61db..6e7e930 100644
--- a/core/java/android/app/servertransaction/ClientTransactionItem.java
+++ b/core/java/android/app/servertransaction/ClientTransactionItem.java
@@ -53,6 +53,7 @@
         return true;
     }
 
+    // TODO(b/260873529): cleanup
     /**
      * If this {@link ClientTransactionItem} is updating configuration, returns the {@link Context}
      * it is updating; otherwise, returns {@code null}.
diff --git a/core/java/android/app/servertransaction/ClientTransactionListenerController.java b/core/java/android/app/servertransaction/ClientTransactionListenerController.java
index c55b0f1..722d5f0 100644
--- a/core/java/android/app/servertransaction/ClientTransactionListenerController.java
+++ b/core/java/android/app/servertransaction/ClientTransactionListenerController.java
@@ -16,6 +16,8 @@
 
 package android.app.servertransaction;
 
+import static android.app.WindowConfiguration.areConfigurationsEqualForDisplay;
+
 import static com.android.window.flags.Flags.activityWindowInfoFlag;
 import static com.android.window.flags.Flags.bundleClientTransactionFlag;
 
@@ -24,8 +26,11 @@
 import android.annotation.NonNull;
 import android.app.Activity;
 import android.app.ActivityThread;
+import android.content.Context;
+import android.content.res.Configuration;
 import android.hardware.display.DisplayManagerGlobal;
 import android.os.IBinder;
+import android.util.ArrayMap;
 import android.util.ArraySet;
 import android.window.ActivityWindowInfo;
 
@@ -51,6 +56,15 @@
     private final ArraySet<BiConsumer<IBinder, ActivityWindowInfo>>
             mActivityWindowInfoChangedListeners = new ArraySet<>();
 
+    /**
+     * Keeps track of the Context whose Configuration will get updated, mapping to the config before
+     * the change.
+     */
+    private final ArrayMap<Context, Configuration> mContextToPreChangedConfigMap = new ArrayMap<>();
+
+    /** Whether there is an {@link ClientTransaction} being executed. */
+    private boolean mIsClientTransactionExecuting;
+
     /** Gets the singleton controller. */
     @NonNull
     public static ClientTransactionListenerController getInstance() {
@@ -126,18 +140,92 @@
         }
     }
 
-    /**
-     * Called when receives a {@link ClientTransaction} that is updating display-related
-     * window configuration.
-     */
-    public void onDisplayChanged(int displayId) {
-        if (!bundleClientTransactionFlag()) {
-            return;
-        }
-        if (ActivityThread.isSystem()) {
+    /** Called when starts executing a remote {@link ClientTransaction}. */
+    public void onClientTransactionStarted() {
+        mIsClientTransactionExecuting = true;
+    }
+
+    /** Called when finishes executing a remote {@link ClientTransaction}. */
+    public void onClientTransactionFinished() {
+        notifyDisplayManagerIfNeeded();
+        mIsClientTransactionExecuting = false;
+    }
+
+    /** Called before updating the Configuration of the given {@code context}. */
+    public void onContextConfigurationPreChanged(@NonNull Context context) {
+        if (!bundleClientTransactionFlag() || ActivityThread.isSystem()) {
             // Not enable for system server.
             return;
         }
+        if (mContextToPreChangedConfigMap.containsKey(context)) {
+            // There is an earlier change that hasn't been reported yet.
+            return;
+        }
+        mContextToPreChangedConfigMap.put(context,
+                new Configuration(context.getResources().getConfiguration()));
+    }
+
+    /** Called after updating the Configuration of the given {@code context}. */
+    public void onContextConfigurationPostChanged(@NonNull Context context) {
+        if (!bundleClientTransactionFlag() || ActivityThread.isSystem()) {
+            // Not enable for system server.
+            return;
+        }
+        if (mIsClientTransactionExecuting) {
+            // Wait until #onClientTransactionFinished to prevent it from triggering the same
+            // #onDisplayChanged multiple times within the same ClientTransaction.
+            return;
+        }
+        final Configuration preChangedConfig = mContextToPreChangedConfigMap.remove(context);
+        if (preChangedConfig != null && shouldReportDisplayChange(context, preChangedConfig)) {
+            onDisplayChanged(context.getDisplayId());
+        }
+    }
+
+    /**
+     * When {@link Configuration} is changed, we want to trigger display change callback as well,
+     * because Display reads some fields from {@link Configuration}.
+     */
+    private void notifyDisplayManagerIfNeeded() {
+        if (mContextToPreChangedConfigMap.isEmpty()) {
+            return;
+        }
+        // Whether the configuration change should trigger DisplayListener#onDisplayChanged.
+        try {
+            // Calculate display ids that have config changed.
+            final ArraySet<Integer> configUpdatedDisplayIds = new ArraySet<>();
+            final int contextCount = mContextToPreChangedConfigMap.size();
+            for (int i = 0; i < contextCount; i++) {
+                final Context context = mContextToPreChangedConfigMap.keyAt(i);
+                final Configuration preChangedConfig = mContextToPreChangedConfigMap.valueAt(i);
+                if (shouldReportDisplayChange(context, preChangedConfig)) {
+                    configUpdatedDisplayIds.add(context.getDisplayId());
+                }
+            }
+
+            // Dispatch the display changed callbacks.
+            final int displayCount = configUpdatedDisplayIds.size();
+            for (int i = 0; i < displayCount; i++) {
+                final int displayId = configUpdatedDisplayIds.valueAt(i);
+                onDisplayChanged(displayId);
+            }
+        } finally {
+            mContextToPreChangedConfigMap.clear();
+        }
+    }
+
+    private boolean shouldReportDisplayChange(@NonNull Context context,
+            @NonNull Configuration preChangedConfig) {
+        final Configuration postChangedConfig = context.getResources().getConfiguration();
+        return !areConfigurationsEqualForDisplay(postChangedConfig, preChangedConfig);
+    }
+
+    /**
+     * Called when receives a {@link Configuration} changed event that is updating display-related
+     * window configuration.
+     */
+    @VisibleForTesting
+    public void onDisplayChanged(int displayId) {
         mDisplayManager.handleDisplayChangeFromWindowManager(displayId);
     }
 }
diff --git a/core/java/android/app/servertransaction/TransactionExecutor.java b/core/java/android/app/servertransaction/TransactionExecutor.java
index c837191..480205e 100644
--- a/core/java/android/app/servertransaction/TransactionExecutor.java
+++ b/core/java/android/app/servertransaction/TransactionExecutor.java
@@ -16,7 +16,6 @@
 
 package android.app.servertransaction;
 
-import static android.app.WindowConfiguration.areConfigurationsEqualForDisplay;
 import static android.app.servertransaction.ActivityLifecycleItem.ON_CREATE;
 import static android.app.servertransaction.ActivityLifecycleItem.ON_DESTROY;
 import static android.app.servertransaction.ActivityLifecycleItem.ON_PAUSE;
@@ -32,17 +31,12 @@
 import static android.app.servertransaction.TransactionExecutorHelper.tId;
 import static android.app.servertransaction.TransactionExecutorHelper.transactionToString;
 
-import static com.android.window.flags.Flags.bundleClientTransactionFlag;
-
 import android.annotation.NonNull;
 import android.app.ActivityThread.ActivityClientRecord;
 import android.app.ClientTransactionHandler;
 import android.content.Context;
-import android.content.res.Configuration;
 import android.os.IBinder;
 import android.os.Trace;
-import android.util.ArrayMap;
-import android.util.ArraySet;
 import android.util.IntArray;
 import android.util.Slog;
 
@@ -63,12 +57,6 @@
     private final PendingTransactionActions mPendingActions = new PendingTransactionActions();
     private final TransactionExecutorHelper mHelper = new TransactionExecutorHelper();
 
-    /**
-     * Keeps track of the Context whose Configuration got updated within a transaction, mapping to
-     * the config before the transaction.
-     */
-    private final ArrayMap<Context, Configuration> mContextToPreChangedConfigMap = new ArrayMap<>();
-
     /** Initialize an instance with transaction handler, that will execute all requested actions. */
     public TransactionExecutor(@NonNull ClientTransactionHandler clientTransactionHandler) {
         mTransactionHandler = clientTransactionHandler;
@@ -104,37 +92,6 @@
             Trace.traceEnd(Trace.TRACE_TAG_WINDOW_MANAGER);
         }
 
-        if (!mContextToPreChangedConfigMap.isEmpty()) {
-            // Whether this transaction should trigger DisplayListener#onDisplayChanged.
-            try {
-                // Calculate display ids that have config changed.
-                final ArraySet<Integer> configUpdatedDisplayIds = new ArraySet<>();
-                final int contextCount = mContextToPreChangedConfigMap.size();
-                for (int i = 0; i < contextCount; i++) {
-                    final Context context = mContextToPreChangedConfigMap.keyAt(i);
-                    final Configuration preTransactionConfig =
-                            mContextToPreChangedConfigMap.valueAt(i);
-                    final Configuration postTransactionConfig = context.getResources()
-                            .getConfiguration();
-                    if (!areConfigurationsEqualForDisplay(
-                            postTransactionConfig, preTransactionConfig)) {
-                        configUpdatedDisplayIds.add(context.getDisplayId());
-                    }
-                }
-
-                // Dispatch the display changed callbacks.
-                final ClientTransactionListenerController controller =
-                        ClientTransactionListenerController.getInstance();
-                final int displayCount = configUpdatedDisplayIds.size();
-                for (int i = 0; i < displayCount; i++) {
-                    final int displayId = configUpdatedDisplayIds.valueAt(i);
-                    controller.onDisplayChanged(displayId);
-                }
-            } finally {
-                mContextToPreChangedConfigMap.clear();
-            }
-        }
-
         mPendingActions.clear();
         if (DEBUG_RESOLVER) Slog.d(TAG, tId(transaction) + "End resolving transaction");
     }
@@ -214,20 +171,6 @@
             }
         }
 
-        final boolean shouldTrackConfigUpdatedContext =
-                // No configuration change for local transaction.
-                !mTransactionHandler.isExecutingLocalTransaction()
-                        && bundleClientTransactionFlag();
-        final Context configUpdatedContext = shouldTrackConfigUpdatedContext
-                ? item.getContextToUpdate(mTransactionHandler)
-                : null;
-        if (configUpdatedContext != null
-                && !mContextToPreChangedConfigMap.containsKey(configUpdatedContext)) {
-            // Keep track of the first pre-executed config of each changed Context.
-            mContextToPreChangedConfigMap.put(configUpdatedContext,
-                    new Configuration(configUpdatedContext.getResources().getConfiguration()));
-        }
-
         item.execute(mTransactionHandler, mPendingActions);
 
         item.postExecute(mTransactionHandler, mPendingActions);
diff --git a/core/java/android/view/HapticFeedbackConstants.java b/core/java/android/view/HapticFeedbackConstants.java
index 253073a..69228ca 100644
--- a/core/java/android/view/HapticFeedbackConstants.java
+++ b/core/java/android/view/HapticFeedbackConstants.java
@@ -83,11 +83,7 @@
      */
     public static final int TEXT_HANDLE_MOVE = 9;
 
-    /**
-     * The user unlocked the device
-     * @hide
-     */
-    public static final int ENTRY_BUMP = 10;
+    // REMOVED: ENTRY_BUMP = 10
 
     /**
      * The user has moved the dragged object within a droppable area.
@@ -230,6 +226,22 @@
     public static final int LONG_PRESS_POWER_BUTTON = 10003;
 
     /**
+     * A haptic effect to signal the confirmation of a user biometric authentication
+     * (e.g. fingerprint reading).
+     * This is a private constant to be used only by system apps.
+     * @hide
+     */
+    public static final int BIOMETRIC_CONFIRM = 10004;
+
+    /**
+     * A haptic effect to signal the rejection of a user biometric authentication attempt
+     * (e.g. fingerprint reading).
+     * This is a private constant to be used only by system apps.
+     * @hide
+     */
+    public static final int BIOMETRIC_REJECT = 10005;
+
+    /**
      * Flag for {@link View#performHapticFeedback(int, int)
      * View.performHapticFeedback(int, int)}: Ignore the setting in the
      * view for whether to perform haptic feedback, do it always.
diff --git a/core/java/android/widget/Toast.java b/core/java/android/widget/Toast.java
index 65984f5..ead8887 100644
--- a/core/java/android/widget/Toast.java
+++ b/core/java/android/widget/Toast.java
@@ -45,8 +45,10 @@
 import android.view.View;
 import android.view.WindowManager;
 import android.view.accessibility.IAccessibilityManager;
+import android.widget.flags.Flags;
 
 import com.android.internal.annotations.GuardedBy;
+import com.android.internal.annotations.VisibleForTesting;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
@@ -205,27 +207,41 @@
         INotificationManager service = getService();
         String pkg = mContext.getOpPackageName();
         TN tn = mTN;
-        tn.mNextView = new WeakReference<>(mNextView);
+        if (Flags.toastNoWeakref()) {
+            tn.mNextView = mNextView;
+        } else {
+            tn.mNextViewWeakRef = new WeakReference<>(mNextView);
+        }
         final boolean isUiContext = mContext.isUiContext();
         final int displayId = mContext.getDisplayId();
 
+        boolean wasEnqueued = false;
         try {
             if (Compatibility.isChangeEnabled(CHANGE_TEXT_TOASTS_IN_THE_SYSTEM)) {
                 if (mNextView != null) {
                     // It's a custom toast
-                    service.enqueueToast(pkg, mToken, tn, mDuration, isUiContext, displayId);
+                    wasEnqueued = service.enqueueToast(pkg, mToken, tn, mDuration, isUiContext,
+                            displayId);
                 } else {
                     // It's a text toast
                     ITransientNotificationCallback callback =
                             new CallbackBinder(mCallbacks, mHandler);
-                    service.enqueueTextToast(pkg, mToken, mText, mDuration, isUiContext, displayId,
-                            callback);
+                    wasEnqueued = service.enqueueTextToast(pkg, mToken, mText, mDuration,
+                            isUiContext, displayId, callback);
                 }
             } else {
-                service.enqueueToast(pkg, mToken, tn, mDuration, isUiContext, displayId);
+                wasEnqueued = service.enqueueToast(pkg, mToken, tn, mDuration, isUiContext,
+                        displayId);
             }
         } catch (RemoteException e) {
             // Empty
+        } finally {
+            if (Flags.toastNoWeakref()) {
+                if (!wasEnqueued) {
+                    tn.mNextViewWeakRef = null;
+                    tn.mNextView = null;
+                }
+            }
         }
     }
 
@@ -581,6 +597,16 @@
         }
     }
 
+    /**
+     * Get the Toast.TN ITransientNotification object
+     * @return TN
+     * @hide
+     */
+    @VisibleForTesting
+    public TN getTn() {
+        return mTN;
+    }
+
     // =======================================================================================
     // All the gunk below is the interaction with the Notification Service, which handles
     // the proper ordering of these system-wide.
@@ -599,7 +625,11 @@
         return sService;
     }
 
-    private static class TN extends ITransientNotification.Stub {
+    /**
+     * @hide
+     */
+    @VisibleForTesting
+    public static class TN extends ITransientNotification.Stub {
         @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
         private final WindowManager.LayoutParams mParams;
 
@@ -620,7 +650,9 @@
         @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
         View mView;
         @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
-        WeakReference<View> mNextView;
+        WeakReference<View> mNextViewWeakRef;
+        @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
+        View mNextView;
         int mDuration;
 
         WindowManager mWM;
@@ -662,14 +694,22 @@
                             handleHide();
                             // Don't do this in handleHide() because it is also invoked by
                             // handleShow()
-                            mNextView = null;
+                            if (Flags.toastNoWeakref()) {
+                                mNextView = null;
+                            } else {
+                                mNextViewWeakRef = null;
+                            }
                             break;
                         }
                         case CANCEL: {
                             handleHide();
                             // Don't do this in handleHide() because it is also invoked by
                             // handleShow()
-                            mNextView = null;
+                            if (Flags.toastNoWeakref()) {
+                                mNextView = null;
+                            } else {
+                                mNextViewWeakRef = null;
+                            }
                             try {
                                 getService().cancelToast(mPackageName, mToken);
                             } catch (RemoteException e) {
@@ -716,21 +756,43 @@
         }
 
         public void handleShow(IBinder windowToken) {
-            if (localLOGV) Log.v(TAG, "HANDLE SHOW: " + this + " mView=" + mView
-                    + " mNextView=" + mNextView);
+            if (Flags.toastNoWeakref()) {
+                if (localLOGV) {
+                    Log.v(TAG, "HANDLE SHOW: " + this + " mView=" + mView
+                            + " mNextView=" + mNextView);
+                }
+            } else {
+                if (localLOGV) {
+                    Log.v(TAG, "HANDLE SHOW: " + this + " mView=" + mView
+                            + " mNextView=" + mNextViewWeakRef);
+                }
+            }
             // If a cancel/hide is pending - no need to show - at this point
             // the window token is already invalid and no need to do any work.
             if (mHandler.hasMessages(CANCEL) || mHandler.hasMessages(HIDE)) {
                 return;
             }
-            if (mNextView != null && mView != mNextView.get()) {
-                // remove the old view if necessary
-                handleHide();
-                mView = mNextView.get();
-                if (mView != null) {
-                    mPresenter.show(mView, mToken, windowToken, mDuration, mGravity, mX, mY,
-                            mHorizontalMargin, mVerticalMargin,
-                            new CallbackBinder(getCallbacks(), mHandler));
+            if (Flags.toastNoWeakref()) {
+                if (mNextView != null && mView != mNextView) {
+                    // remove the old view if necessary
+                    handleHide();
+                    mView = mNextView;
+                    if (mView != null) {
+                        mPresenter.show(mView, mToken, windowToken, mDuration, mGravity, mX, mY,
+                                mHorizontalMargin, mVerticalMargin,
+                                new CallbackBinder(getCallbacks(), mHandler));
+                    }
+                }
+            } else {
+                if (mNextViewWeakRef != null && mView != mNextViewWeakRef.get()) {
+                    // remove the old view if necessary
+                    handleHide();
+                    mView = mNextViewWeakRef.get();
+                    if (mView != null) {
+                        mPresenter.show(mView, mToken, windowToken, mDuration, mGravity, mX, mY,
+                                mHorizontalMargin, mVerticalMargin,
+                                new CallbackBinder(getCallbacks(), mHandler));
+                    }
                 }
             }
         }
@@ -745,6 +807,23 @@
                 mView = null;
             }
         }
+
+        /**
+         * Get the next view to show for enqueued toasts
+         * Custom toast views are deprecated.
+         * @see #setView(View)
+         *
+         * @return next view
+         * @hide
+         */
+        @VisibleForTesting
+        public View getNextView() {
+            if (Flags.toastNoWeakref()) {
+                return mNextView;
+            } else {
+                return (mNextViewWeakRef != null) ? mNextViewWeakRef.get() : null;
+            }
+        }
     }
 
     /**
diff --git a/core/java/android/widget/flags/notification_widget_flags.aconfig b/core/java/android/widget/flags/notification_widget_flags.aconfig
index e60fa15..515fa55 100644
--- a/core/java/android/widget/flags/notification_widget_flags.aconfig
+++ b/core/java/android/widget/flags/notification_widget_flags.aconfig
@@ -25,4 +25,14 @@
   metadata {
     purpose: PURPOSE_BUGFIX
   }
-}
\ No newline at end of file
+}
+
+flag {
+  name: "toast_no_weakref"
+  namespace: "systemui"
+  description: "Do not use WeakReference for custom view Toast"
+  bug: "321732224"
+  metadata {
+    purpose: PURPOSE_BUGFIX
+  }
+}
diff --git a/core/java/android/window/WindowTokenClient.java b/core/java/android/window/WindowTokenClient.java
index 4a3aba1..a868d48 100644
--- a/core/java/android/window/WindowTokenClient.java
+++ b/core/java/android/window/WindowTokenClient.java
@@ -25,6 +25,7 @@
 import android.annotation.Nullable;
 import android.app.ActivityThread;
 import android.app.ResourcesManager;
+import android.app.servertransaction.ClientTransactionListenerController;
 import android.content.Context;
 import android.content.res.CompatibilityInfo;
 import android.content.res.Configuration;
@@ -137,12 +138,24 @@
      *                                 should be dispatched to listeners.
      */
     @AnyThread
-    public void onConfigurationChanged(Configuration newConfig, int newDisplayId,
+    public void onConfigurationChanged(@NonNull Configuration newConfig, int newDisplayId,
             boolean shouldReportConfigChange) {
         final Context context = mContextRef.get();
         if (context == null) {
             return;
         }
+        final ClientTransactionListenerController controller =
+                ClientTransactionListenerController.getInstance();
+        controller.onContextConfigurationPreChanged(context);
+        try {
+            onConfigurationChangedInner(context, newConfig, newDisplayId, shouldReportConfigChange);
+        } finally {
+            controller.onContextConfigurationPostChanged(context);
+        }
+    }
+
+    private void onConfigurationChangedInner(@NonNull Context context,
+            @NonNull Configuration newConfig, int newDisplayId, boolean shouldReportConfigChange) {
         CompatibilityInfo.applyOverrideScaleIfNeeded(newConfig);
         final boolean displayChanged;
         final boolean shouldUpdateResources;
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 913b63e..c694426 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -2593,6 +2593,13 @@
     <permission android:name="android.permission.VIBRATE_ALWAYS_ON"
         android:protectionLevel="signature" />
 
+    <!-- Allows access to system-only haptic feedback constants.
+         <p>Protection level: signature
+         @hide
+    -->
+    <permission android:name="android.permission.VIBRATE_SYSTEM_CONSTANTS"
+        android:protectionLevel="signature" />
+
     <!-- @SystemApi Allows access to the vibrator state.
          <p>Protection level: signature
          @hide
diff --git a/core/tests/coretests/src/android/app/servertransaction/ClientTransactionListenerControllerTest.java b/core/tests/coretests/src/android/app/servertransaction/ClientTransactionListenerControllerTest.java
index 77d31a5..8506905 100644
--- a/core/tests/coretests/src/android/app/servertransaction/ClientTransactionListenerControllerTest.java
+++ b/core/tests/coretests/src/android/app/servertransaction/ClientTransactionListenerControllerTest.java
@@ -23,11 +23,17 @@
 import static com.android.window.flags.Flags.FLAG_BUNDLE_CLIENT_TRANSACTION_FLAG;
 
 import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.Mockito.clearInvocations;
+import static org.mockito.Mockito.doNothing;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.verify;
 
+import android.app.Activity;
+import android.content.res.Configuration;
+import android.content.res.Resources;
 import android.graphics.Rect;
 import android.hardware.display.DisplayManager;
 import android.hardware.display.DisplayManagerGlobal;
@@ -76,6 +82,13 @@
     private BiConsumer<IBinder, ActivityWindowInfo> mActivityWindowInfoListener;
     @Mock
     private IBinder mActivityToken;
+    @Mock
+    private Activity mActivity;
+    @Mock
+    private Resources mResources;
+
+    private Configuration mConfiguration;
+
 
     private DisplayManagerGlobal mDisplayManager;
     private Handler mHandler;
@@ -88,7 +101,12 @@
         MockitoAnnotations.initMocks(this);
         mDisplayManager = new DisplayManagerGlobal(mIDisplayManager);
         mHandler = getInstrumentation().getContext().getMainThreadHandler();
-        mController = ClientTransactionListenerController.createInstanceForTesting(mDisplayManager);
+        mController = spy(ClientTransactionListenerController
+                .createInstanceForTesting(mDisplayManager));
+
+        mConfiguration = new Configuration();
+        doReturn(mConfiguration).when(mResources).getConfiguration();
+        doReturn(mResources).when(mActivity).getResources();
     }
 
     @Test
@@ -107,6 +125,43 @@
     }
 
     @Test
+    public void testOnContextConfigurationChanged() {
+        doNothing().when(mController).onDisplayChanged(anyInt());
+        doReturn(123).when(mActivity).getDisplayId();
+
+        // Not trigger onDisplayChanged when there is no change.
+        mController.onContextConfigurationPreChanged(mActivity);
+        mController.onContextConfigurationPostChanged(mActivity);
+
+        verify(mController, never()).onDisplayChanged(anyInt());
+
+        mController.onContextConfigurationPreChanged(mActivity);
+        mConfiguration.windowConfiguration.setMaxBounds(new Rect(0, 0, 100, 200));
+        mController.onContextConfigurationPostChanged(mActivity);
+
+        verify(mController).onDisplayChanged(123);
+    }
+
+    @Test
+    public void testOnContextConfigurationChanged_duringClientTransaction() {
+        doNothing().when(mController).onDisplayChanged(anyInt());
+        doReturn(123).when(mActivity).getDisplayId();
+
+        // Not trigger onDisplayChanged until ClientTransaction finished execution.
+        mController.onClientTransactionStarted();
+
+        mController.onContextConfigurationPreChanged(mActivity);
+        mConfiguration.windowConfiguration.setMaxBounds(new Rect(0, 0, 100, 200));
+        mController.onContextConfigurationPostChanged(mActivity);
+
+        verify(mController, never()).onDisplayChanged(anyInt());
+
+        mController.onClientTransactionFinished();
+
+        verify(mController).onDisplayChanged(123);
+    }
+
+    @Test
     public void testActivityWindowInfoChangedListener() {
         mSetFlagsRule.enableFlags(Flags.FLAG_ACTIVITY_WINDOW_INFO_FLAG);
 
diff --git a/core/tests/mockingcoretests/Android.bp b/core/tests/mockingcoretests/Android.bp
index 2d778b1..aca52a8 100644
--- a/core/tests/mockingcoretests/Android.bp
+++ b/core/tests/mockingcoretests/Android.bp
@@ -40,6 +40,7 @@
         "platform-test-annotations",
         "truth",
         "testables",
+        "flag-junit",
     ],
 
     libs: [
diff --git a/core/tests/mockingcoretests/src/android/widget/OWNERS b/core/tests/mockingcoretests/src/android/widget/OWNERS
new file mode 100644
index 0000000..c0cbea9
--- /dev/null
+++ b/core/tests/mockingcoretests/src/android/widget/OWNERS
@@ -0,0 +1 @@
+include /services/core/java/com/android/server/notification/OWNERS
\ No newline at end of file
diff --git a/core/tests/mockingcoretests/src/android/widget/ToastTest.java b/core/tests/mockingcoretests/src/android/widget/ToastTest.java
new file mode 100644
index 0000000..79bc81d
--- /dev/null
+++ b/core/tests/mockingcoretests/src/android/widget/ToastTest.java
@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2024 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.widget;
+
+import static com.android.dx.mockito.inline.extended.ExtendedMockito.any;
+import static com.android.dx.mockito.inline.extended.ExtendedMockito.anyBoolean;
+import static com.android.dx.mockito.inline.extended.ExtendedMockito.anyInt;
+import static com.android.dx.mockito.inline.extended.ExtendedMockito.anyString;
+import static com.android.dx.mockito.inline.extended.ExtendedMockito.doReturn;
+import static com.android.dx.mockito.inline.extended.ExtendedMockito.mock;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.reset;
+import static org.mockito.Mockito.when;
+
+import android.app.INotificationManager;
+import android.content.Context;
+import android.os.Looper;
+import android.os.RemoteException;
+import android.os.ServiceManager;
+import android.platform.test.annotations.DisableFlags;
+import android.platform.test.annotations.EnableFlags;
+import android.platform.test.flag.junit.SetFlagsRule;
+import android.view.View;
+import android.widget.flags.Flags;
+
+import androidx.test.InstrumentationRegistry;
+import androidx.test.filters.SmallTest;
+import androidx.test.runner.AndroidJUnit4;
+
+import com.android.dx.mockito.inline.extended.ExtendedMockito;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.MockitoSession;
+import org.mockito.quality.Strictness;
+
+
+/**
+ * ToastTest tests {@link Toast}.
+ */
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class ToastTest {
+
+    @Rule
+    public final SetFlagsRule mSetFlagsRule = new SetFlagsRule();
+
+    private Context mContext;
+    private MockitoSession mMockingSession;
+    private static INotificationManager.Stub sMockNMS;
+
+    @Before
+    public void setup() {
+        mContext = InstrumentationRegistry.getContext();
+        mMockingSession =
+              ExtendedMockito.mockitoSession()
+                  .strictness(Strictness.LENIENT)
+                  .mockStatic(ServiceManager.class)
+                  .startMocking();
+
+        //Toast caches the NotificationManager service as static class member
+        if (sMockNMS == null) {
+            sMockNMS = mock(INotificationManager.Stub.class);
+        }
+        doReturn(sMockNMS).when(sMockNMS).queryLocalInterface("android.app.INotificationManager");
+        doReturn(sMockNMS).when(() -> ServiceManager.getService(Context.NOTIFICATION_SERVICE));
+    }
+
+    @After
+    public void tearDown() {
+        if (mMockingSession != null) {
+            mMockingSession.finishMocking();
+        }
+        reset(sMockNMS);
+    }
+
+    @Test
+    @EnableFlags(Flags.FLAG_TOAST_NO_WEAKREF)
+    public void enqueueFail_nullifiesNextView() throws RemoteException {
+        Looper.prepare();
+
+        // allow 1st toast and fail on the 2nd
+        when(sMockNMS.enqueueToast(anyString(), any(), any(), anyInt(), anyBoolean(),
+              anyInt())).thenReturn(true, false);
+
+        // first toast is enqueued
+        Toast t = Toast.makeText(mContext, "Toast1", Toast.LENGTH_SHORT);
+        t.setView(mock(View.class));
+        t.show();
+        Toast.TN tn = t.getTn();
+        assertThat(tn.getNextView()).isNotNull();
+
+        // second toast is not enqueued
+        t = Toast.makeText(mContext, "Toast2", Toast.LENGTH_SHORT);
+        t.setView(mock(View.class));
+        t.show();
+        tn = t.getTn();
+        assertThat(tn.getNextView()).isNull();
+    }
+
+    @Test
+    @DisableFlags(Flags.FLAG_TOAST_NO_WEAKREF)
+    public void enqueueFail_doesNotNullifyNextView() throws RemoteException {
+        Looper.prepare();
+
+        // allow 1st toast and fail on the 2nd
+        when(sMockNMS.enqueueToast(anyString(), any(), any(), anyInt(), anyBoolean(),
+              anyInt())).thenReturn(true, false);
+
+        // first toast is enqueued
+        Toast t = Toast.makeText(mContext, "Toast1", Toast.LENGTH_SHORT);
+        t.setView(mock(View.class));
+        t.show();
+        Toast.TN tn = t.getTn();
+        assertThat(tn.getNextView()).isNotNull();
+
+        // second toast is not enqueued
+        t = Toast.makeText(mContext, "Toast2", Toast.LENGTH_SHORT);
+        t.setView(mock(View.class));
+        t.show();
+        tn = t.getTn();
+        assertThat(tn.getNextView()).isNotNull();
+    }
+}
diff --git a/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/GallerySpaEnvironment.kt b/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/GallerySpaEnvironment.kt
index 761bb79..91bd791 100644
--- a/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/GallerySpaEnvironment.kt
+++ b/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/GallerySpaEnvironment.kt
@@ -40,7 +40,7 @@
 import com.android.settingslib.spa.gallery.page.IllustrationPageProvider
 import com.android.settingslib.spa.gallery.page.LoadingBarPageProvider
 import com.android.settingslib.spa.gallery.page.ProgressBarPageProvider
-import com.android.settingslib.spa.gallery.page.SettingsPagerPageProvider
+import com.android.settingslib.spa.gallery.scaffold.NonScrollablePagerPageProvider
 import com.android.settingslib.spa.gallery.page.SliderPageProvider
 import com.android.settingslib.spa.gallery.preference.ListPreferencePageProvider
 import com.android.settingslib.spa.gallery.preference.MainSwitchPreferencePageProvider
@@ -48,10 +48,12 @@
 import com.android.settingslib.spa.gallery.preference.PreferencePageProvider
 import com.android.settingslib.spa.gallery.preference.SwitchPreferencePageProvider
 import com.android.settingslib.spa.gallery.preference.TwoTargetSwitchPreferencePageProvider
+import com.android.settingslib.spa.gallery.scaffold.PagerMainPageProvider
 import com.android.settingslib.spa.gallery.scaffold.SearchScaffoldPageProvider
 import com.android.settingslib.spa.gallery.scaffold.SuwScaffoldPageProvider
 import com.android.settingslib.spa.gallery.ui.CategoryPageProvider
 import com.android.settingslib.spa.gallery.ui.CopyablePageProvider
+import com.android.settingslib.spa.gallery.scaffold.ScrollablePagerPageProvider
 import com.android.settingslib.spa.gallery.ui.SpinnerPageProvider
 import com.android.settingslib.spa.slice.SpaSliceBroadcastReceiver
 
@@ -84,7 +86,9 @@
                 ArgumentPageProvider,
                 SliderPageProvider,
                 SpinnerPageProvider,
-                SettingsPagerPageProvider,
+                PagerMainPageProvider,
+                NonScrollablePagerPageProvider,
+                ScrollablePagerPageProvider,
                 FooterPageProvider,
                 IllustrationPageProvider,
                 CategoryPageProvider,
diff --git a/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/home/HomePageProvider.kt b/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/home/HomePageProvider.kt
index 1f028d5..654719d 100644
--- a/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/home/HomePageProvider.kt
+++ b/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/home/HomePageProvider.kt
@@ -39,9 +39,9 @@
 import com.android.settingslib.spa.gallery.page.IllustrationPageProvider
 import com.android.settingslib.spa.gallery.page.LoadingBarPageProvider
 import com.android.settingslib.spa.gallery.page.ProgressBarPageProvider
-import com.android.settingslib.spa.gallery.page.SettingsPagerPageProvider
 import com.android.settingslib.spa.gallery.page.SliderPageProvider
 import com.android.settingslib.spa.gallery.preference.PreferenceMainPageProvider
+import com.android.settingslib.spa.gallery.scaffold.PagerMainPageProvider
 import com.android.settingslib.spa.gallery.scaffold.SearchScaffoldPageProvider
 import com.android.settingslib.spa.gallery.scaffold.SuwScaffoldPageProvider
 import com.android.settingslib.spa.gallery.ui.CategoryPageProvider
@@ -63,7 +63,7 @@
             SuwScaffoldPageProvider.buildInjectEntry().setLink(fromPage = owner).build(),
             SliderPageProvider.buildInjectEntry().setLink(fromPage = owner).build(),
             SpinnerPageProvider.buildInjectEntry().setLink(fromPage = owner).build(),
-            SettingsPagerPageProvider.buildInjectEntry().setLink(fromPage = owner).build(),
+            PagerMainPageProvider.buildInjectEntry().setLink(fromPage = owner).build(),
             FooterPageProvider.buildInjectEntry().setLink(fromPage = owner).build(),
             IllustrationPageProvider.buildInjectEntry().setLink(fromPage = owner).build(),
             CategoryPageProvider.buildInjectEntry().setLink(fromPage = owner).build(),
diff --git a/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/page/SettingsPagerPage.kt b/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/scaffold/NonScrollablePagerPageProvider.kt
similarity index 70%
rename from packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/page/SettingsPagerPage.kt
rename to packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/scaffold/NonScrollablePagerPageProvider.kt
index dc45e6d..029773f 100644
--- a/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/page/SettingsPagerPage.kt
+++ b/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/scaffold/NonScrollablePagerPageProvider.kt
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2022 The Android Open Source Project
+ * Copyright (C) 2024 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.
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.android.settingslib.spa.gallery.page
+package com.android.settingslib.spa.gallery.scaffold
 
 import android.os.Bundle
 import androidx.compose.foundation.layout.Box
@@ -33,24 +33,19 @@
 import com.android.settingslib.spa.widget.scaffold.SettingsScaffold
 import com.android.settingslib.spa.widget.ui.PlaceholderTitle
 
-private const val TITLE = "Sample SettingsPager"
+object NonScrollablePagerPageProvider : SettingsPageProvider {
+    override val name = "NonScrollablePager"
+    private const val TITLE = "Sample Non Scrollable SettingsPager"
 
-object SettingsPagerPageProvider : SettingsPageProvider {
-    override val name = "SettingsPager"
+    fun buildInjectEntry() = SettingsEntryBuilder.createInject(owner = createSettingsPage())
+        .setUiLayoutFn {
+            Preference(object : PreferenceModel {
+                override val title = TITLE
+                override val onClick = navigator(name)
+            })
+        }
 
-    fun buildInjectEntry(): SettingsEntryBuilder {
-        return SettingsEntryBuilder.createInject(owner = createSettingsPage())
-            .setUiLayoutFn {
-                Preference(object : PreferenceModel {
-                    override val title = TITLE
-                    override val onClick = navigator(name)
-                })
-            }
-    }
-
-    override fun getTitle(arguments: Bundle?): String {
-        return TITLE
-    }
+    override fun getTitle(arguments: Bundle?) = TITLE
 
     @Composable
     override fun Page(arguments: Bundle?) {
@@ -66,8 +61,8 @@
 
 @Preview(showBackground = true)
 @Composable
-private fun SettingsPagerPagePreview() {
+private fun NonScrollablePagerPageProviderPreview() {
     SettingsTheme {
-        SettingsPagerPageProvider.Page(null)
+        NonScrollablePagerPageProvider.Page(null)
     }
 }
diff --git a/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/scaffold/PagerMainPageProvider.kt b/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/scaffold/PagerMainPageProvider.kt
new file mode 100644
index 0000000..66cc38f
--- /dev/null
+++ b/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/scaffold/PagerMainPageProvider.kt
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2024 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.settingslib.spa.gallery.scaffold
+
+import android.os.Bundle
+import com.android.settingslib.spa.framework.common.SettingsEntryBuilder
+import com.android.settingslib.spa.framework.common.SettingsPageProvider
+import com.android.settingslib.spa.framework.common.createSettingsPage
+import com.android.settingslib.spa.framework.compose.navigator
+import com.android.settingslib.spa.widget.preference.Preference
+import com.android.settingslib.spa.widget.preference.PreferenceModel
+
+object PagerMainPageProvider : SettingsPageProvider {
+    override val name = "PagerMain"
+    private val owner = createSettingsPage()
+    private const val TITLE = "Category: Pager"
+
+    override fun buildEntry(arguments: Bundle?) = listOf(
+        NonScrollablePagerPageProvider.buildInjectEntry().setLink(fromPage = owner).build(),
+        ScrollablePagerPageProvider.buildInjectEntry().setLink(fromPage = owner).build(),
+    )
+
+    fun buildInjectEntry() = SettingsEntryBuilder.createInject(owner = owner)
+        .setUiLayoutFn {
+            Preference(object : PreferenceModel {
+                override val title = TITLE
+                override val onClick = navigator(name)
+            })
+        }
+
+    override fun getTitle(arguments: Bundle?) = TITLE
+}
diff --git a/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/page/SettingsPagerPage.kt b/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/scaffold/ScrollablePagerPageProvider.kt
similarity index 62%
copy from packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/page/SettingsPagerPage.kt
copy to packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/scaffold/ScrollablePagerPageProvider.kt
index dc45e6d..689a98a 100644
--- a/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/page/SettingsPagerPage.kt
+++ b/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/scaffold/ScrollablePagerPageProvider.kt
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2022 The Android Open Source Project
+ * Copyright (C) 2024 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.
@@ -14,11 +14,12 @@
  * limitations under the License.
  */
 
-package com.android.settingslib.spa.gallery.page
+package com.android.settingslib.spa.gallery.scaffold
 
 import android.os.Bundle
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.tooling.preview.Preview
@@ -31,33 +32,33 @@
 import com.android.settingslib.spa.widget.preference.PreferenceModel
 import com.android.settingslib.spa.widget.scaffold.SettingsPager
 import com.android.settingslib.spa.widget.scaffold.SettingsScaffold
-import com.android.settingslib.spa.widget.ui.PlaceholderTitle
 
-private const val TITLE = "Sample SettingsPager"
+object ScrollablePagerPageProvider : SettingsPageProvider {
+    override val name = "ScrollablePager"
+    private const val TITLE = "Sample Scrollable SettingsPager"
 
-object SettingsPagerPageProvider : SettingsPageProvider {
-    override val name = "SettingsPager"
+    fun buildInjectEntry() = SettingsEntryBuilder.createInject(owner = createSettingsPage())
+        .setUiLayoutFn {
+            Preference(object : PreferenceModel {
+                override val title = TITLE
+                override val onClick = navigator(name)
+            })
+        }
 
-    fun buildInjectEntry(): SettingsEntryBuilder {
-        return SettingsEntryBuilder.createInject(owner = createSettingsPage())
-            .setUiLayoutFn {
-                Preference(object : PreferenceModel {
-                    override val title = TITLE
-                    override val onClick = navigator(name)
-                })
-            }
-    }
-
-    override fun getTitle(arguments: Bundle?): String {
-        return TITLE
-    }
+    override fun getTitle(arguments: Bundle?) = TITLE
 
     @Composable
     override fun Page(arguments: Bundle?) {
         SettingsScaffold(title = getTitle(arguments)) { paddingValues ->
             Box(Modifier.padding(paddingValues)) {
                 SettingsPager(listOf("Personal", "Work")) {
-                    PlaceholderTitle("Page $it")
+                    LazyColumn {
+                        items(30) {
+                            Preference(object : PreferenceModel {
+                                override val title = it.toString()
+                            })
+                        }
+                    }
                 }
             }
         }
@@ -66,8 +67,8 @@
 
 @Preview(showBackground = true)
 @Composable
-private fun SettingsPagerPagePreview() {
+private fun ScrollablePagerPageProviderPreview() {
     SettingsTheme {
-        SettingsPagerPageProvider.Page(null)
+        ScrollablePagerPageProvider.Page(null)
     }
 }
diff --git a/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/scaffold/SuwScaffoldPageProvider.kt b/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/scaffold/SuwScaffoldPageProvider.kt
index 6fc8de3..a0ab2ce 100644
--- a/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/scaffold/SuwScaffoldPageProvider.kt
+++ b/packages/SettingsLib/Spa/gallery/src/com/android/settingslib/spa/gallery/scaffold/SuwScaffoldPageProvider.kt
@@ -22,6 +22,10 @@
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.outlined.SignalCellularAlt
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableIntStateOf
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
 import com.android.settingslib.spa.framework.common.SettingsEntryBuilder
 import com.android.settingslib.spa.framework.common.SettingsPageProvider
@@ -37,6 +41,8 @@
 import com.android.settingslib.spa.widget.scaffold.BottomAppBarButton
 import com.android.settingslib.spa.widget.scaffold.SuwScaffold
 import com.android.settingslib.spa.widget.ui.SettingsBody
+import com.android.settingslib.spa.widget.ui.Spinner
+import com.android.settingslib.spa.widget.ui.SpinnerOption
 
 private const val TITLE = "Sample SuwScaffold"
 
@@ -67,13 +73,12 @@
         actionButton = BottomAppBarButton("Next") {},
         dismissButton = BottomAppBarButton("Cancel") {},
     ) {
-        Column(Modifier.padding(SettingsDimension.itemPadding)) {
-            SettingsBody("To add another SIM, download a new eSIM.")
-        }
-        Illustration(object : IllustrationModel {
-            override val resId = R.drawable.accessibility_captioning_banner
-            override val resourceType = ResourceType.IMAGE
-        })
+        var selectedId by rememberSaveable { mutableIntStateOf(1) }
+        Spinner(
+            options = (1..3).map { SpinnerOption(id = it, text = "Option $it") },
+            selectedId = selectedId,
+            setId = { selectedId = it },
+        )
         Column(Modifier.padding(SettingsDimension.itemPadding)) {
             SettingsBody("To add another SIM, download a new eSIM.")
         }
diff --git a/packages/SettingsLib/Spa/spa/src/com/android/settingslib/spa/widget/scaffold/SuwScaffold.kt b/packages/SettingsLib/Spa/spa/src/com/android/settingslib/spa/widget/scaffold/SuwScaffold.kt
index f372a45..163766a 100644
--- a/packages/SettingsLib/Spa/spa/src/com/android/settingslib/spa/widget/scaffold/SuwScaffold.kt
+++ b/packages/SettingsLib/Spa/spa/src/com/android/settingslib/spa/widget/scaffold/SuwScaffold.kt
@@ -19,7 +19,6 @@
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.BoxWithConstraints
 import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.ColumnScope
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.padding
@@ -33,6 +32,8 @@
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.movableContentOf
+import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.vector.ImageVector
 import com.android.settingslib.spa.framework.theme.SettingsDimension
@@ -50,7 +51,7 @@
     title: String,
     actionButton: BottomAppBarButton? = null,
     dismissButton: BottomAppBarButton? = null,
-    content: @Composable ColumnScope.() -> Unit,
+    content: @Composable () -> Unit,
 ) {
     ActivityTitle(title)
     Scaffold { innerPadding ->
@@ -59,6 +60,7 @@
                 .padding(innerPadding)
                 .padding(top = SettingsDimension.itemPaddingAround)
         ) {
+            val movableContent = remember(content) { movableContentOf { content() } }
             // Use single column layout in portrait, two columns in landscape.
             val useSingleColumn = maxWidth < maxHeight
             if (useSingleColumn) {
@@ -69,7 +71,7 @@
                             .verticalScroll(rememberScrollState())
                     ) {
                         Header(imageVector, title)
-                        content()
+                        movableContent()
                     }
                     BottomBar(actionButton, dismissButton)
                 }
@@ -82,8 +84,9 @@
                         Column(
                             Modifier
                                 .weight(1f)
-                                .verticalScroll(rememberScrollState())) {
-                            content()
+                                .verticalScroll(rememberScrollState())
+                        ) {
+                            movableContent()
                         }
                     }
                     BottomBar(actionButton, dismissButton)
diff --git a/packages/SettingsLib/Tile/src/com/android/settingslib/drawer/Tile.java b/packages/SettingsLib/Tile/src/com/android/settingslib/drawer/Tile.java
index 2a27623..7f4bebc 100644
--- a/packages/SettingsLib/Tile/src/com/android/settingslib/drawer/Tile.java
+++ b/packages/SettingsLib/Tile/src/com/android/settingslib/drawer/Tile.java
@@ -19,6 +19,7 @@
 import static com.android.settingslib.drawer.TileUtils.META_DATA_KEY_ORDER;
 import static com.android.settingslib.drawer.TileUtils.META_DATA_KEY_PROFILE;
 import static com.android.settingslib.drawer.TileUtils.META_DATA_NEW_TASK;
+import static com.android.settingslib.drawer.TileUtils.META_DATA_PREFERENCE_GROUP_KEY;
 import static com.android.settingslib.drawer.TileUtils.META_DATA_PREFERENCE_ICON;
 import static com.android.settingslib.drawer.TileUtils.META_DATA_PREFERENCE_KEYHINT;
 import static com.android.settingslib.drawer.TileUtils.META_DATA_PREFERENCE_SEARCHABLE;
@@ -79,6 +80,9 @@
         mComponentName = mComponentInfo.name;
         mCategory = category;
         mMetaData = metaData;
+        if (mMetaData != null) {
+            mGroupKey = metaData.getString(META_DATA_PREFERENCE_GROUP_KEY);
+        }
         mIntent = new Intent().setClassName(mComponentPackage, mComponentName);
         if (isNewTask()) {
             mIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
diff --git a/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SceneTransitionLayoutImpl.kt b/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SceneTransitionLayoutImpl.kt
index b1cfdcf..dbec059 100644
--- a/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SceneTransitionLayoutImpl.kt
+++ b/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SceneTransitionLayoutImpl.kt
@@ -204,15 +204,16 @@
                     }
 
                 // Handle back events.
-                // TODO(b/290184746): Make sure that this works with SystemUI once we use
-                // SceneTransitionLayout in Flexiglass.
-                scene(state.transitionState.currentScene).userActions[Back]?.let { result ->
-                    // TODO(b/290184746): Handle predictive back and use result.distance if
-                    // specified.
-                    BackHandler {
-                        val targetScene = result.toScene
-                        if (state.canChangeScene(targetScene)) {
-                            with(state) { coroutineScope.onChangeScene(targetScene) }
+                val targetSceneForBackOrNull =
+                    scene(state.transitionState.currentScene).userActions[Back]?.toScene
+                BackHandler(
+                    enabled = targetSceneForBackOrNull != null,
+                ) {
+                    targetSceneForBackOrNull?.let { targetSceneForBack ->
+                        // TODO(b/290184746): Handle predictive back and use result.distance if
+                        // specified.
+                        if (state.canChangeScene(targetSceneForBack)) {
+                            with(state) { coroutineScope.onChangeScene(targetSceneForBack) }
                         }
                     }
                 }
diff --git a/packages/SystemUI/multivalentTests/src/com/android/systemui/biometrics/UdfpsControllerOverlayTest.kt b/packages/SystemUI/multivalentTests/src/com/android/systemui/biometrics/UdfpsControllerOverlayTest.kt
index 4950b96..85774c6 100644
--- a/packages/SystemUI/multivalentTests/src/com/android/systemui/biometrics/UdfpsControllerOverlayTest.kt
+++ b/packages/SystemUI/multivalentTests/src/com/android/systemui/biometrics/UdfpsControllerOverlayTest.kt
@@ -537,4 +537,65 @@
                 assertThat(lp.height).isEqualTo(overlayParams.sensorBounds.height())
             }
         }
+
+    @Test
+    fun addViewPending_layoutIsNotUpdated() =
+        testScope.runTest {
+            withReasonSuspend(REASON_AUTH_KEYGUARD) {
+                mSetFlagsRule.enableFlags(Flags.FLAG_UDFPS_VIEW_PERFORMANCE)
+                mSetFlagsRule.enableFlags(Flags.FLAG_DEVICE_ENTRY_UDFPS_REFACTOR)
+
+                // GIVEN going to sleep
+                keyguardTransitionRepository.sendTransitionSteps(
+                    from = KeyguardState.OFF,
+                    to = KeyguardState.GONE,
+                    testScope = this,
+                )
+                powerRepository.updateWakefulness(
+                    rawState = WakefulnessState.STARTING_TO_SLEEP,
+                    lastWakeReason = WakeSleepReason.POWER_BUTTON,
+                    lastSleepReason = WakeSleepReason.OTHER,
+                )
+                runCurrent()
+
+                // WHEN a request comes to show the view
+                controllerOverlay.show(udfpsController, overlayParams)
+                runCurrent()
+
+                // THEN the view does not get added immediately
+                verify(windowManager, never()).addView(any(), any())
+
+                // WHEN updateOverlayParams gets called when the view is pending to be added
+                controllerOverlay.updateOverlayParams(overlayParams)
+
+                // THEN the view layout is never updated
+                verify(windowManager, never()).updateViewLayout(any(), any())
+
+                // CLEANUPL we hide to end the job that listens for the finishedGoingToSleep signal
+                controllerOverlay.hide()
+            }
+        }
+
+    @Test
+    fun updateOverlayParams_viewLayoutUpdated() =
+        testScope.runTest {
+            withReasonSuspend(REASON_AUTH_KEYGUARD) {
+                mSetFlagsRule.enableFlags(Flags.FLAG_UDFPS_VIEW_PERFORMANCE)
+                powerRepository.updateWakefulness(
+                    rawState = WakefulnessState.AWAKE,
+                    lastWakeReason = WakeSleepReason.POWER_BUTTON,
+                    lastSleepReason = WakeSleepReason.OTHER,
+                )
+                runCurrent()
+                controllerOverlay.show(udfpsController, overlayParams)
+                runCurrent()
+                verify(windowManager).addView(any(), any())
+
+                // WHEN updateOverlayParams gets called
+                controllerOverlay.updateOverlayParams(overlayParams)
+
+                // THEN the view layout is updated
+                verify(windowManager, never()).updateViewLayout(any(), any())
+            }
+        }
 }
diff --git a/packages/SystemUI/multivalentTests/src/com/android/systemui/keyguard/ui/viewmodel/LockscreenSceneViewModelTest.kt b/packages/SystemUI/multivalentTests/src/com/android/systemui/keyguard/ui/viewmodel/LockscreenSceneViewModelTest.kt
index 66f7e01..776f1a5 100644
--- a/packages/SystemUI/multivalentTests/src/com/android/systemui/keyguard/ui/viewmodel/LockscreenSceneViewModelTest.kt
+++ b/packages/SystemUI/multivalentTests/src/com/android/systemui/keyguard/ui/viewmodel/LockscreenSceneViewModelTest.kt
@@ -34,6 +34,8 @@
 import com.android.systemui.deviceentry.data.repository.fakeDeviceEntryRepository
 import com.android.systemui.deviceentry.domain.interactor.deviceEntryInteractor
 import com.android.systemui.kosmos.testScope
+import com.android.systemui.power.data.repository.fakePowerRepository
+import com.android.systemui.power.shared.model.WakefulnessState
 import com.android.systemui.scene.domain.interactor.sceneInteractor
 import com.android.systemui.scene.shared.model.Scenes
 import com.android.systemui.shade.data.repository.shadeRepository
@@ -43,6 +45,7 @@
 import com.android.systemui.testKosmos
 import com.android.systemui.util.mockito.mock
 import com.google.common.truth.Truth.assertThat
+import kotlin.math.pow
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.test.runTest
 import org.junit.BeforeClass
@@ -57,22 +60,26 @@
 class LockscreenSceneViewModelTest : SysuiTestCase() {
 
     companion object {
+        private const val parameterCount = 6
+
         @Parameters(
             name =
                 "canSwipeToEnter={0}, downWithTwoPointers={1}, downFromEdge={2}," +
-                    " isSingleShade={3}, isCommunalAvailable={4}"
+                    " isSingleShade={3}, isCommunalAvailable={4}, isShadeTouchable={5}"
         )
         @JvmStatic
         fun combinations() = buildList {
-            repeat(32) { combination ->
+            repeat(2f.pow(parameterCount).toInt()) { combination ->
                 add(
                     arrayOf(
-                        /* canSwipeToEnter= */ combination and 1 != 0,
-                        /* downWithTwoPointers= */ combination and 2 != 0,
-                        /* downFromEdge= */ combination and 4 != 0,
-                        /* isSingleShade= */ combination and 8 != 0,
-                        /* isCommunalAvailable= */ combination and 16 != 0,
-                    )
+                            /* canSwipeToEnter= */ combination and 1 != 0,
+                            /* downWithTwoPointers= */ combination and 2 != 0,
+                            /* downFromEdge= */ combination and 4 != 0,
+                            /* isSingleShade= */ combination and 8 != 0,
+                            /* isCommunalAvailable= */ combination and 16 != 0,
+                            /* isShadeTouchable= */ combination and 32 != 0,
+                        )
+                        .also { check(it.size == parameterCount) }
                 )
             }
         }
@@ -82,8 +89,15 @@
         fun setUp() {
             val combinationStrings =
                 combinations().map { array ->
-                    check(array.size == 5)
-                    "${array[4]},${array[3]},${array[2]},${array[1]},${array[0]}"
+                    check(array.size == parameterCount)
+                    buildString {
+                        ((parameterCount - 1) downTo 0).forEach { index ->
+                            append("${array[index]}")
+                            if (index > 0) {
+                                append(",")
+                            }
+                        }
+                    }
                 }
             val uniqueCombinations = combinationStrings.toSet()
             assertThat(combinationStrings).hasSize(uniqueCombinations.size)
@@ -92,8 +106,35 @@
         private fun expectedDownDestination(
             downFromEdge: Boolean,
             isSingleShade: Boolean,
-        ): SceneKey {
-            return if (downFromEdge && isSingleShade) Scenes.QuickSettings else Scenes.Shade
+            isShadeTouchable: Boolean,
+        ): SceneKey? {
+            return when {
+                !isShadeTouchable -> null
+                downFromEdge && isSingleShade -> Scenes.QuickSettings
+                else -> Scenes.Shade
+            }
+        }
+
+        private fun expectedUpDestination(
+            canSwipeToEnter: Boolean,
+            isShadeTouchable: Boolean,
+        ): SceneKey? {
+            return when {
+                !isShadeTouchable -> null
+                canSwipeToEnter -> Scenes.Gone
+                else -> Scenes.Bouncer
+            }
+        }
+
+        private fun expectedLeftDestination(
+            isCommunalAvailable: Boolean,
+            isShadeTouchable: Boolean,
+        ): SceneKey? {
+            return when {
+                !isShadeTouchable -> null
+                isCommunalAvailable -> Scenes.Communal
+                else -> null
+            }
         }
     }
 
@@ -106,6 +147,7 @@
     @JvmField @Parameter(2) var downFromEdge: Boolean = false
     @JvmField @Parameter(3) var isSingleShade: Boolean = true
     @JvmField @Parameter(4) var isCommunalAvailable: Boolean = false
+    @JvmField @Parameter(5) var isShadeTouchable: Boolean = false
 
     private val underTest by lazy { createLockscreenSceneViewModel() }
 
@@ -130,6 +172,14 @@
                 }
             )
             kosmos.setCommunalAvailable(isCommunalAvailable)
+            kosmos.fakePowerRepository.updateWakefulness(
+                rawState =
+                    if (isShadeTouchable) {
+                        WakefulnessState.AWAKE
+                    } else {
+                        WakefulnessState.ASLEEP
+                    },
+            )
 
             val destinationScenes by collectLastValue(underTest.destinationScenes)
 
@@ -148,14 +198,25 @@
                     expectedDownDestination(
                         downFromEdge = downFromEdge,
                         isSingleShade = isSingleShade,
+                        isShadeTouchable = isShadeTouchable,
                     )
                 )
 
             assertThat(destinationScenes?.get(Swipe(SwipeDirection.Up))?.toScene)
-                .isEqualTo(if (canSwipeToEnter) Scenes.Gone else Scenes.Bouncer)
+                .isEqualTo(
+                    expectedUpDestination(
+                        canSwipeToEnter = canSwipeToEnter,
+                        isShadeTouchable = isShadeTouchable,
+                    )
+                )
 
             assertThat(destinationScenes?.get(Swipe(SwipeDirection.Left))?.toScene)
-                .isEqualTo(Scenes.Communal.takeIf { isCommunalAvailable })
+                .isEqualTo(
+                    expectedLeftDestination(
+                        isCommunalAvailable = isCommunalAvailable,
+                        isShadeTouchable = isShadeTouchable,
+                    )
+                )
         }
 
     private fun createLockscreenSceneViewModel(): LockscreenSceneViewModel {
diff --git a/packages/SystemUI/multivalentTests/src/com/android/systemui/scene/SceneFrameworkIntegrationTest.kt b/packages/SystemUI/multivalentTests/src/com/android/systemui/scene/SceneFrameworkIntegrationTest.kt
index 9856f90..93302e3 100644
--- a/packages/SystemUI/multivalentTests/src/com/android/systemui/scene/SceneFrameworkIntegrationTest.kt
+++ b/packages/SystemUI/multivalentTests/src/com/android/systemui/scene/SceneFrameworkIntegrationTest.kt
@@ -293,6 +293,7 @@
                 occlusionInteractor = kosmos.sceneContainerOcclusionInteractor,
                 faceUnlockInteractor = kosmos.deviceEntryFaceAuthInteractor,
                 deviceUnlockedInteractor = kosmos.deviceUnlockedInteractor,
+                shadeInteractor = kosmos.shadeInteractor,
             )
         startable.start()
 
diff --git a/packages/SystemUI/multivalentTests/src/com/android/systemui/scene/domain/startable/SceneContainerStartableTest.kt b/packages/SystemUI/multivalentTests/src/com/android/systemui/scene/domain/startable/SceneContainerStartableTest.kt
index 3fd5306..75e66fb 100644
--- a/packages/SystemUI/multivalentTests/src/com/android/systemui/scene/domain/startable/SceneContainerStartableTest.kt
+++ b/packages/SystemUI/multivalentTests/src/com/android/systemui/scene/domain/startable/SceneContainerStartableTest.kt
@@ -48,14 +48,17 @@
 import com.android.systemui.keyguard.shared.model.SuccessFingerprintAuthenticationStatus
 import com.android.systemui.kosmos.testScope
 import com.android.systemui.model.sysUiState
+import com.android.systemui.power.data.repository.fakePowerRepository
 import com.android.systemui.power.domain.interactor.PowerInteractor.Companion.setAsleepForTest
 import com.android.systemui.power.domain.interactor.PowerInteractor.Companion.setAwakeForTest
 import com.android.systemui.power.domain.interactor.PowerInteractorFactory
+import com.android.systemui.power.shared.model.WakefulnessState
 import com.android.systemui.scene.domain.interactor.sceneContainerOcclusionInteractor
 import com.android.systemui.scene.domain.interactor.sceneInteractor
 import com.android.systemui.scene.shared.flag.fakeSceneContainerFlags
 import com.android.systemui.scene.shared.model.Scenes
 import com.android.systemui.scene.shared.model.fakeSceneDataSource
+import com.android.systemui.shade.domain.interactor.shadeInteractor
 import com.android.systemui.shared.system.QuickStepContract
 import com.android.systemui.statusbar.NotificationShadeWindowController
 import com.android.systemui.statusbar.domain.interactor.keyguardOcclusionInteractor
@@ -140,6 +143,7 @@
                 occlusionInteractor = kosmos.sceneContainerOcclusionInteractor,
                 faceUnlockInteractor = kosmos.deviceEntryFaceAuthInteractor,
                 deviceUnlockedInteractor = kosmos.deviceUnlockedInteractor,
+                shadeInteractor = kosmos.shadeInteractor,
             )
     }
 
@@ -1127,6 +1131,33 @@
             assertThat(kosmos.fakeDeviceEntryFaceAuthRepository.isAuthRunning.value).isTrue()
         }
 
+    @Test
+    fun switchToLockscreen_whenShadeBecomesNotTouchable() =
+        testScope.runTest {
+            val currentScene by collectLastValue(sceneInteractor.currentScene)
+            val isShadeTouchable by collectLastValue(kosmos.shadeInteractor.isShadeTouchable)
+            val transitionStateFlow = prepareState()
+            underTest.start()
+            assertThat(currentScene).isEqualTo(Scenes.Lockscreen)
+            // Flung to bouncer, 90% of the way there:
+            transitionStateFlow.value =
+                ObservableTransitionState.Transition(
+                    fromScene = Scenes.Lockscreen,
+                    toScene = Scenes.Bouncer,
+                    progress = flowOf(0.9f),
+                    isInitiatedByUserInput = true,
+                    isUserInputOngoing = flowOf(false),
+                )
+            runCurrent()
+            assertThat(currentScene).isEqualTo(Scenes.Lockscreen)
+
+            kosmos.fakePowerRepository.updateWakefulness(WakefulnessState.ASLEEP)
+            runCurrent()
+            assertThat(isShadeTouchable).isFalse()
+
+            assertThat(currentScene).isEqualTo(Scenes.Lockscreen)
+        }
+
     private fun TestScope.emulateSceneTransition(
         transitionStateFlow: MutableStateFlow<ObservableTransitionState>,
         toScene: SceneKey,
@@ -1166,6 +1197,7 @@
         isLockscreenEnabled: Boolean = true,
         startsAwake: Boolean = true,
         isDeviceProvisioned: Boolean = true,
+        isInteractive: Boolean = true,
     ): MutableStateFlow<ObservableTransitionState> {
         if (authenticationMethod?.isSecure == true) {
             assert(isLockscreenEnabled) {
@@ -1205,6 +1237,7 @@
         } else {
             powerInteractor.setAsleepForTest()
         }
+        kosmos.fakePowerRepository.setInteractive(isInteractive)
 
         kosmos.fakeDeviceProvisioningRepository.setDeviceProvisioned(isDeviceProvisioned)
 
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsControllerOverlay.kt b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsControllerOverlay.kt
index 3a45db1..61d1c71 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsControllerOverlay.kt
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsControllerOverlay.kt
@@ -323,7 +323,13 @@
         overlayParams = updatedOverlayParams
         sensorBounds = updatedOverlayParams.sensorBounds
         getTouchOverlay()?.let {
-            windowManager.updateViewLayout(it, coreLayoutParams.updateDimensions(null))
+            if (addViewRunnable != null) {
+                // Only updateViewLayout if there's no pending view to add to WM.
+                // If there is a pending view, that means the view hasn't been added yet so there's
+                // no need to update any layouts. Instead the correct params will be used when the
+                // view is eventually added.
+                windowManager.updateViewLayout(it, coreLayoutParams.updateDimensions(null))
+            }
         }
     }
 
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/LockscreenSceneViewModel.kt b/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/LockscreenSceneViewModel.kt
index 993e81b..d4c8456e 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/LockscreenSceneViewModel.kt
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/LockscreenSceneViewModel.kt
@@ -37,6 +37,8 @@
 import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.flatMapLatest
+import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.flow.stateIn
 
 /** Models UI state and handles user input for the lockscreen scene. */
@@ -52,16 +54,23 @@
     val notifications: NotificationsPlaceholderViewModel,
 ) {
     val destinationScenes: StateFlow<Map<UserAction, UserActionResult>> =
-        combine(
-                deviceEntryInteractor.isUnlocked,
-                communalInteractor.isCommunalAvailable,
-                shadeInteractor.shadeMode,
-            ) { isDeviceUnlocked, isCommunalAvailable, shadeMode ->
-                destinationScenes(
-                    isDeviceUnlocked = isDeviceUnlocked,
-                    isCommunalAvailable = isCommunalAvailable,
-                    shadeMode = shadeMode,
-                )
+        shadeInteractor.isShadeTouchable
+            .flatMapLatest { isShadeTouchable ->
+                if (!isShadeTouchable) {
+                    flowOf(emptyMap())
+                } else {
+                    combine(
+                        deviceEntryInteractor.isUnlocked,
+                        communalInteractor.isCommunalAvailable,
+                        shadeInteractor.shadeMode,
+                    ) { isDeviceUnlocked, isCommunalAvailable, shadeMode ->
+                        destinationScenes(
+                            isDeviceUnlocked = isDeviceUnlocked,
+                            isCommunalAvailable = isCommunalAvailable,
+                            shadeMode = shadeMode,
+                        )
+                    }
+                }
             }
             .stateIn(
                 scope = applicationScope,
diff --git a/packages/SystemUI/src/com/android/systemui/qs/ui/viewmodel/QuickSettingsSceneViewModel.kt b/packages/SystemUI/src/com/android/systemui/qs/ui/viewmodel/QuickSettingsSceneViewModel.kt
index 4e0b576..ab0b0b7 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/ui/viewmodel/QuickSettingsSceneViewModel.kt
+++ b/packages/SystemUI/src/com/android/systemui/qs/ui/viewmodel/QuickSettingsSceneViewModel.kt
@@ -52,8 +52,6 @@
     val destinationScenes =
         qsSceneAdapter.isCustomizing.flatMapLatest { customizing ->
             if (customizing) {
-                // TODO(b/332749288) Empty map so there are no back handlers and back can close
-                // customizer
                 flowOf(emptyMap())
                 // TODO(b/330200163) Add an Up from Bottom to be able to collapse the shade
                 // while customizing
diff --git a/packages/SystemUI/src/com/android/systemui/scene/domain/startable/SceneContainerStartable.kt b/packages/SystemUI/src/com/android/systemui/scene/domain/startable/SceneContainerStartable.kt
index 32d72e0..1f935f97 100644
--- a/packages/SystemUI/src/com/android/systemui/scene/domain/startable/SceneContainerStartable.kt
+++ b/packages/SystemUI/src/com/android/systemui/scene/domain/startable/SceneContainerStartable.kt
@@ -47,6 +47,7 @@
 import com.android.systemui.scene.shared.flag.SceneContainerFlags
 import com.android.systemui.scene.shared.logger.SceneLogger
 import com.android.systemui.scene.shared.model.Scenes
+import com.android.systemui.shade.domain.interactor.ShadeInteractor
 import com.android.systemui.statusbar.NotificationShadeWindowController
 import com.android.systemui.statusbar.notification.domain.interactor.HeadsUpNotificationInteractor
 import com.android.systemui.statusbar.phone.CentralSurfaces
@@ -103,6 +104,7 @@
     private val headsUpInteractor: HeadsUpNotificationInteractor,
     private val occlusionInteractor: SceneContainerOcclusionInteractor,
     private val faceUnlockInteractor: DeviceEntryFaceAuthInteractor,
+    private val shadeInteractor: ShadeInteractor,
 ) : CoreStartable {
 
     override fun start() {
@@ -185,6 +187,14 @@
 
     /** Switches between scenes based on ever-changing application state. */
     private fun automaticallySwitchScenes() {
+        handleBouncerImeVisibility()
+        handleSimUnlock()
+        handleDeviceUnlockStatus()
+        handlePowerState()
+        handleShadeTouchability()
+    }
+
+    private fun handleBouncerImeVisibility() {
         applicationScope.launch {
             // TODO (b/308001302): Move this to a bouncer specific interactor.
             bouncerInteractor.onImeHiddenByUser.collectLatest {
@@ -196,6 +206,9 @@
                 }
             }
         }
+    }
+
+    private fun handleSimUnlock() {
         applicationScope.launch {
             simBouncerInteractor
                 .get()
@@ -229,6 +242,9 @@
                     }
                 }
         }
+    }
+
+    private fun handleDeviceUnlockStatus() {
         applicationScope.launch {
             deviceUnlockedInteractor.deviceUnlockStatus
                 .mapNotNull { deviceUnlockStatus ->
@@ -288,7 +304,9 @@
                     )
                 }
         }
+    }
 
+    private fun handlePowerState() {
         applicationScope.launch {
             powerInteractor.isAsleep.collect { isAsleep ->
                 if (isAsleep) {
@@ -317,7 +335,7 @@
                     ) {
                         switchToScene(
                             targetSceneKey = Scenes.Bouncer,
-                            loggingReason = "device is starting to wake up with a locked sim"
+                            loggingReason = "device is starting to wake up with a locked sim",
                         )
                     }
                 }
@@ -325,6 +343,20 @@
         }
     }
 
+    private fun handleShadeTouchability() {
+        applicationScope.launch {
+            shadeInteractor.isShadeTouchable
+                .distinctUntilChanged()
+                .filter { !it }
+                .collect {
+                    switchToScene(
+                        targetSceneKey = Scenes.Lockscreen,
+                        loggingReason = "device became non-interactive",
+                    )
+                }
+        }
+    }
+
     /** Keeps [SysUiState] up-to-date */
     private fun hydrateSystemUiState() {
         applicationScope.launch {
diff --git a/packages/SystemUI/src/com/android/systemui/shade/GlanceableHubContainerController.kt b/packages/SystemUI/src/com/android/systemui/shade/GlanceableHubContainerController.kt
index f6b1bcc..f418e7e 100644
--- a/packages/SystemUI/src/com/android/systemui/shade/GlanceableHubContainerController.kt
+++ b/packages/SystemUI/src/com/android/systemui/shade/GlanceableHubContainerController.kt
@@ -23,7 +23,13 @@
 import android.view.MotionEvent
 import android.view.View
 import android.view.ViewGroup
+import androidx.activity.OnBackPressedDispatcher
+import androidx.activity.OnBackPressedDispatcherOwner
+import androidx.activity.setViewTreeOnBackPressedDispatcherOwner
 import androidx.compose.ui.platform.ComposeView
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.lifecycleScope
+import androidx.lifecycle.repeatOnLifecycle
 import com.android.compose.theme.PlatformTheme
 import com.android.internal.annotations.VisibleForTesting
 import com.android.systemui.communal.dagger.Communal
@@ -33,6 +39,7 @@
 import com.android.systemui.keyguard.domain.interactor.KeyguardInteractor
 import com.android.systemui.keyguard.domain.interactor.KeyguardTransitionInteractor
 import com.android.systemui.keyguard.shared.model.KeyguardState
+import com.android.systemui.lifecycle.repeatWhenAttached
 import com.android.systemui.res.R
 import com.android.systemui.scene.shared.model.SceneDataSourceDelegator
 import com.android.systemui.shade.domain.interactor.ShadeInteractor
@@ -40,6 +47,7 @@
 import com.android.systemui.util.kotlin.collectFlow
 import javax.inject.Inject
 import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.launch
 
 /**
  * Controller that's responsible for the glanceable hub container view and its touch handling.
@@ -139,13 +147,33 @@
     ): View {
         return initView(
             ComposeView(context).apply {
-                setContent {
-                    PlatformTheme {
-                        CommunalContainer(
-                            viewModel = communalViewModel,
-                            dataSourceDelegator = dataSourceDelegator,
-                            dialogFactory = dialogFactory,
-                        )
+                repeatWhenAttached {
+                    lifecycleScope.launch {
+                        repeatOnLifecycle(Lifecycle.State.CREATED) {
+                            setViewTreeOnBackPressedDispatcherOwner(
+                                object : OnBackPressedDispatcherOwner {
+                                    override val onBackPressedDispatcher =
+                                        OnBackPressedDispatcher().apply {
+                                            setOnBackInvokedDispatcher(
+                                                viewRootImpl.onBackInvokedDispatcher
+                                            )
+                                        }
+
+                                    override val lifecycle: Lifecycle =
+                                        this@repeatWhenAttached.lifecycle
+                                }
+                            )
+
+                            setContent {
+                                PlatformTheme {
+                                    CommunalContainer(
+                                        viewModel = communalViewModel,
+                                        dataSourceDelegator = dataSourceDelegator,
+                                        dialogFactory = dialogFactory,
+                                    )
+                                }
+                            }
+                        }
                     }
                 }
             }
diff --git a/packages/SystemUI/src/com/android/systemui/shade/ShadeControllerSceneImpl.kt b/packages/SystemUI/src/com/android/systemui/shade/ShadeControllerSceneImpl.kt
index ebebbe6..8c15817 100644
--- a/packages/SystemUI/src/com/android/systemui/shade/ShadeControllerSceneImpl.kt
+++ b/packages/SystemUI/src/com/android/systemui/shade/ShadeControllerSceneImpl.kt
@@ -124,7 +124,6 @@
             // release focus immediately to kick off focus change transition
             notificationShadeWindowController.setNotificationShadeFocusable(false)
             notificationStackScrollLayout.cancelExpandHelper()
-            sceneInteractor.changeScene(Scenes.Shade, "ShadeController.animateExpandShade")
             if (delayed) {
                 scope.launch {
                     delay(125)
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/NotificationEntry.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/NotificationEntry.java
index 9ce38db..8b673c9 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/NotificationEntry.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/NotificationEntry.java
@@ -49,7 +49,6 @@
 import android.service.notification.NotificationListenerService.Ranking;
 import android.service.notification.SnoozeCriterion;
 import android.service.notification.StatusBarNotification;
-import android.util.ArraySet;
 import android.view.ContentInfo;
 
 import androidx.annotation.NonNull;
@@ -150,10 +149,8 @@
     private int mCachedContrastColor = COLOR_INVALID;
     private int mCachedContrastColorIsFor = COLOR_INVALID;
     private InflationTask mRunningTask = null;
-    private Throwable mDebugThrowable;
     public CharSequence remoteInputTextWhenReset;
     public long lastRemoteInputSent = NOT_LAUNCHED_YET;
-    public final ArraySet<Integer> mActiveAppOps = new ArraySet<>(3);
 
     private final MutableStateFlow<CharSequence> mHeadsUpStatusBarText =
             StateFlowKt.MutableStateFlow(null);
@@ -190,11 +187,6 @@
     private boolean mBlockable;
 
     /**
-     * The {@link SystemClock#elapsedRealtime()} when this notification entry was created.
-     */
-    public long mCreationElapsedRealTime;
-
-    /**
      * Whether this notification has ever been a non-sticky HUN.
      */
     private boolean mIsDemoted = false;
@@ -264,13 +256,8 @@
         mKey = sbn.getKey();
         setSbn(sbn);
         setRanking(ranking);
-        mCreationElapsedRealTime = SystemClock.elapsedRealtime();
     }
 
-    @VisibleForTesting
-    public void setCreationElapsedRealTime(long time) {
-        mCreationElapsedRealTime = time;
-    }
     @Override
     public NotificationEntry getRepresentativeEntry() {
         return this;
@@ -581,19 +568,6 @@
         return mRunningTask;
     }
 
-    /**
-     * Set a throwable that is used for debugging
-     *
-     * @param debugThrowable the throwable to save
-     */
-    public void setDebugThrowable(Throwable debugThrowable) {
-        mDebugThrowable = debugThrowable;
-    }
-
-    public Throwable getDebugThrowable() {
-        return mDebugThrowable;
-    }
-
     public void onRemoteInputInserted() {
         lastRemoteInputSent = NOT_LAUNCHED_YET;
         remoteInputTextWhenReset = null;
@@ -749,12 +723,6 @@
         return row != null && row.areChildrenExpanded();
     }
 
-
-    //TODO: probably less confusing to say "is group fully visible"
-    public boolean isGroupNotFullyVisible() {
-        return row == null || row.isGroupNotFullyVisible();
-    }
-
     public NotificationGuts getGuts() {
         if (row != null) return row.getGuts();
         return null;
diff --git a/services/core/java/com/android/server/inputmethod/InputMethodBindingController.java b/services/core/java/com/android/server/inputmethod/InputMethodBindingController.java
index a100fe0..3d01c5f 100644
--- a/services/core/java/com/android/server/inputmethod/InputMethodBindingController.java
+++ b/services/core/java/com/android/server/inputmethod/InputMethodBindingController.java
@@ -410,7 +410,7 @@
             Slog.v(TAG,
                     "Removing window token: " + mCurToken + " for display: " + curTokenDisplayId);
         }
-        mWindowManagerInternal.removeWindowToken(mCurToken, false /* removeWindows */,
+        mWindowManagerInternal.removeWindowToken(mCurToken, true /* removeWindows */,
                 false /* animateExit */, curTokenDisplayId);
         mCurToken = null;
     }
diff --git a/services/core/java/com/android/server/notification/NotificationManagerService.java b/services/core/java/com/android/server/notification/NotificationManagerService.java
index 956e10c..ebc1a2a 100755
--- a/services/core/java/com/android/server/notification/NotificationManagerService.java
+++ b/services/core/java/com/android/server/notification/NotificationManagerService.java
@@ -3399,21 +3399,21 @@
         // ============================================================================
 
         @Override
-        public void enqueueTextToast(String pkg, IBinder token, CharSequence text, int duration,
+        public boolean enqueueTextToast(String pkg, IBinder token, CharSequence text, int duration,
                 boolean isUiContext, int displayId,
                 @Nullable ITransientNotificationCallback textCallback) {
-            enqueueToast(pkg, token, text, /* callback= */ null, duration, isUiContext, displayId,
-                    textCallback);
+            return enqueueToast(pkg, token, text, /* callback= */ null, duration, isUiContext,
+                    displayId, textCallback);
         }
 
         @Override
-        public void enqueueToast(String pkg, IBinder token, ITransientNotification callback,
+        public boolean enqueueToast(String pkg, IBinder token, ITransientNotification callback,
                 int duration, boolean isUiContext, int displayId) {
-            enqueueToast(pkg, token, /* text= */ null, callback, duration, isUiContext, displayId,
-                    /* textCallback= */ null);
+            return enqueueToast(pkg, token, /* text= */ null, callback, duration, isUiContext,
+                    displayId, /* textCallback= */ null);
         }
 
-        private void enqueueToast(String pkg, IBinder token, @Nullable CharSequence text,
+        private boolean enqueueToast(String pkg, IBinder token, @Nullable CharSequence text,
                 @Nullable ITransientNotification callback, int duration, boolean isUiContext,
                 int displayId, @Nullable ITransientNotificationCallback textCallback) {
             if (DBG) {
@@ -3425,7 +3425,7 @@
                     || (text != null && callback != null) || token == null) {
                 Slog.e(TAG, "Not enqueuing toast. pkg=" + pkg + " text=" + text + " callback="
                         + " token=" + token);
-                return;
+                return false;
             }
 
             final int callingUid = Binder.getCallingUid();
@@ -3451,7 +3451,7 @@
             boolean isAppRenderedToast = (callback != null);
             if (!checkCanEnqueueToast(pkg, callingUid, displayId, isAppRenderedToast,
                     isSystemToast)) {
-                return;
+                return false;
             }
 
             synchronized (mToastQueue) {
@@ -3477,7 +3477,7 @@
                                 if (count >= MAX_PACKAGE_TOASTS) {
                                     Slog.e(TAG, "Package has already queued " + count
                                             + " toasts. Not showing more. Package=" + pkg);
-                                    return;
+                                    return false;
                                 }
                             }
                         }
@@ -3513,6 +3513,7 @@
                     Binder.restoreCallingIdentity(callingId);
                 }
             }
+            return true;
         }
 
         @GuardedBy("mToastQueue")
diff --git a/services/core/java/com/android/server/rollback/RollbackManagerServiceImpl.java b/services/core/java/com/android/server/rollback/RollbackManagerServiceImpl.java
index 2a93255..c8bcc51 100644
--- a/services/core/java/com/android/server/rollback/RollbackManagerServiceImpl.java
+++ b/services/core/java/com/android/server/rollback/RollbackManagerServiceImpl.java
@@ -54,8 +54,10 @@
 import android.os.UserManager;
 import android.os.ext.SdkExtensions;
 import android.provider.DeviceConfig;
+import android.util.ArrayMap;
 import android.util.Log;
 import android.util.LongArrayQueue;
+import android.util.Pair;
 import android.util.Slog;
 import android.util.SparseBooleanArray;
 import android.util.SparseIntArray;
@@ -173,6 +175,8 @@
     // Accessed on the handler thread only.
     private long  mRelativeBootTime = calculateRelativeBootTime();
 
+    private final ArrayMap<Integer, Pair<Context, BroadcastReceiver>> mUserBroadcastReceivers;
+
     RollbackManagerServiceImpl(Context context) {
         mContext = context;
         // Note that we're calling onStart here because this object is only constructed on
@@ -210,6 +214,8 @@
             }
         });
 
+        mUserBroadcastReceivers = new ArrayMap<>();
+
         UserManager userManager = mContext.getSystemService(UserManager.class);
         for (UserHandle user : userManager.getUserHandles(true)) {
             registerUserCallbacks(user);
@@ -275,7 +281,9 @@
             }
         }, enableRollbackTimedOutFilter, null, getHandler());
 
-        IntentFilter userAddedIntentFilter = new IntentFilter(Intent.ACTION_USER_ADDED);
+        IntentFilter userIntentFilter = new IntentFilter();
+        userIntentFilter.addAction(Intent.ACTION_USER_ADDED);
+        userIntentFilter.addAction(Intent.ACTION_USER_REMOVED);
         mContext.registerReceiver(new BroadcastReceiver() {
             @Override
             public void onReceive(Context context, Intent intent) {
@@ -287,9 +295,15 @@
                         return;
                     }
                     registerUserCallbacks(UserHandle.of(newUserId));
+                } else if (Intent.ACTION_USER_REMOVED.equals(intent.getAction())) {
+                    final int newUserId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, -1);
+                    if (newUserId == -1) {
+                        return;
+                    }
+                    unregisterUserCallbacks(UserHandle.of(newUserId));
                 }
             }
-        }, userAddedIntentFilter, null, getHandler());
+        }, userIntentFilter, null, getHandler());
 
         registerTimeChangeReceiver();
     }
@@ -335,7 +349,7 @@
         filter.addAction(Intent.ACTION_PACKAGE_REPLACED);
         filter.addAction(Intent.ACTION_PACKAGE_FULLY_REMOVED);
         filter.addDataScheme("package");
-        context.registerReceiver(new BroadcastReceiver() {
+        BroadcastReceiver receiver = new BroadcastReceiver() {
             @Override
             public void onReceive(Context context, Intent intent) {
                 assertInWorkerThread();
@@ -354,7 +368,21 @@
                     onPackageFullyRemoved(packageName);
                 }
             }
-        }, filter, null, getHandler());
+        };
+        context.registerReceiver(receiver, filter, null, getHandler());
+        mUserBroadcastReceivers.put(user.getIdentifier(), new Pair(context, receiver));
+    }
+
+    @AnyThread
+    private void unregisterUserCallbacks(UserHandle user) {
+        Pair<Context, BroadcastReceiver> pair = mUserBroadcastReceivers.get(user.getIdentifier());
+        if (pair == null || pair.first == null || pair.second == null) {
+            Slog.e(TAG, "No receiver found for the user" + user);
+            return;
+        }
+
+        pair.first.unregisterReceiver(pair.second);
+        mUserBroadcastReceivers.remove(user.getIdentifier());
     }
 
     @ExtThread
diff --git a/services/core/java/com/android/server/vibrator/HapticFeedbackVibrationProvider.java b/services/core/java/com/android/server/vibrator/HapticFeedbackVibrationProvider.java
index 96f045d..8138168 100644
--- a/services/core/java/com/android/server/vibrator/HapticFeedbackVibrationProvider.java
+++ b/services/core/java/com/android/server/vibrator/HapticFeedbackVibrationProvider.java
@@ -44,6 +44,8 @@
             VibrationAttributes.createForUsage(VibrationAttributes.USAGE_PHYSICAL_EMULATION);
     private static final VibrationAttributes HARDWARE_FEEDBACK_VIBRATION_ATTRIBUTES =
             VibrationAttributes.createForUsage(VibrationAttributes.USAGE_HARDWARE_FEEDBACK);
+    private static final VibrationAttributes COMMUNICATION_REQUEST_VIBRATION_ATTRIBUTES =
+            VibrationAttributes.createForUsage(VibrationAttributes.USAGE_COMMUNICATION_REQUEST);
 
     private final VibratorInfo mVibratorInfo;
     private final boolean mHapticTextHandleEnabled;
@@ -120,7 +122,6 @@
                 return getKeyboardVibration(effectId);
 
             case HapticFeedbackConstants.VIRTUAL_KEY_RELEASE:
-            case HapticFeedbackConstants.ENTRY_BUMP:
             case HapticFeedbackConstants.DRAG_CROSSING:
                 return getVibration(
                         effectId,
@@ -131,6 +132,7 @@
             case HapticFeedbackConstants.EDGE_RELEASE:
             case HapticFeedbackConstants.CALENDAR_DATE:
             case HapticFeedbackConstants.CONFIRM:
+            case HapticFeedbackConstants.BIOMETRIC_CONFIRM:
             case HapticFeedbackConstants.GESTURE_START:
             case HapticFeedbackConstants.SCROLL_ITEM_FOCUS:
             case HapticFeedbackConstants.SCROLL_LIMIT:
@@ -143,6 +145,7 @@
                 return getVibration(effectId, VibrationEffect.EFFECT_HEAVY_CLICK);
 
             case HapticFeedbackConstants.REJECT:
+            case HapticFeedbackConstants.BIOMETRIC_REJECT:
                 return getVibration(effectId, VibrationEffect.EFFECT_DOUBLE_CLICK);
 
             case HapticFeedbackConstants.SAFE_MODE_ENABLED:
@@ -207,6 +210,10 @@
             case HapticFeedbackConstants.KEYBOARD_RELEASE:
                 attrs = createKeyboardVibrationAttributes(fromIme);
                 break;
+            case HapticFeedbackConstants.BIOMETRIC_CONFIRM:
+            case HapticFeedbackConstants.BIOMETRIC_REJECT:
+                attrs = COMMUNICATION_REQUEST_VIBRATION_ATTRIBUTES;
+                break;
             default:
                 attrs = TOUCH_VIBRATION_ATTRIBUTES;
         }
@@ -225,6 +232,23 @@
         return flags == 0 ? attrs : new VibrationAttributes.Builder(attrs).setFlags(flags).build();
     }
 
+    /**
+     * Returns true if given haptic feedback is restricted to system apps with permission
+     * {@code android.permission.VIBRATE_SYSTEM_CONSTANTS}.
+     *
+     * @param effectId the haptic feedback effect ID to check.
+     * @return true if the haptic feedback is restricted, false otherwise.
+     */
+    public boolean isRestrictedHapticFeedback(int effectId) {
+        switch (effectId) {
+            case HapticFeedbackConstants.BIOMETRIC_CONFIRM:
+            case HapticFeedbackConstants.BIOMETRIC_REJECT:
+                return true;
+            default:
+                return false;
+        }
+    }
+
     /** Dumps relevant state. */
     public void dump(String prefix, PrintWriter pw) {
         pw.print("mHapticTextHandleEnabled="); pw.println(mHapticTextHandleEnabled);
diff --git a/services/core/java/com/android/server/vibrator/VibratorManagerService.java b/services/core/java/com/android/server/vibrator/VibratorManagerService.java
index 9e9025e..8281ac1 100644
--- a/services/core/java/com/android/server/vibrator/VibratorManagerService.java
+++ b/services/core/java/com/android/server/vibrator/VibratorManagerService.java
@@ -439,6 +439,11 @@
             Slog.w(TAG, "performHapticFeedback; haptic vibration provider not ready.");
             return null;
         }
+        if (hapticVibrationProvider.isRestrictedHapticFeedback(constant)
+                && !hasPermission(android.Manifest.permission.VIBRATE_SYSTEM_CONSTANTS)) {
+            Slog.w(TAG, "performHapticFeedback; no permission for effect " + constant);
+            return null;
+        }
         VibrationEffect effect = hapticVibrationProvider.getVibrationForHapticFeedback(constant);
         if (effect == null) {
             Slog.w(TAG, "performHapticFeedback; vibration absent for effect " + constant);
diff --git a/services/core/java/com/android/server/wearable/WearableSensingManagerPerUserService.java b/services/core/java/com/android/server/wearable/WearableSensingManagerPerUserService.java
index c6b401b..36e5200 100644
--- a/services/core/java/com/android/server/wearable/WearableSensingManagerPerUserService.java
+++ b/services/core/java/com/android/server/wearable/WearableSensingManagerPerUserService.java
@@ -525,6 +525,10 @@
                                                 futureFromWearableSensingService.complete(null);
                                                 return;
                                             }
+                                            if (pfdFromApp == null) {
+                                                futureFromWearableSensingService.complete(null);
+                                                return;
+                                            }
                                             if (isReadOnly(pfdFromApp)) {
                                                 futureFromWearableSensingService.complete(
                                                         pfdFromApp);
diff --git a/services/core/java/com/android/server/wm/ActivityRecord.java b/services/core/java/com/android/server/wm/ActivityRecord.java
index 207d42b6..ad1f648 100644
--- a/services/core/java/com/android/server/wm/ActivityRecord.java
+++ b/services/core/java/com/android/server/wm/ActivityRecord.java
@@ -8544,7 +8544,9 @@
             }
         // If activity in fullscreen mode is letterboxed because of fixed orientation then bounds
         // are already calculated in resolveFixedOrientationConfiguration.
-        } else if (!isLetterboxedForFixedOrientationAndAspectRatio()) {
+        // Don't apply aspect ratio if app is overridden to fullscreen by device user/manufacturer.
+        } else if (!isLetterboxedForFixedOrientationAndAspectRatio()
+                && !mLetterboxUiController.hasFullscreenOverride()) {
             resolveAspectRatioRestriction(newParentConfiguration);
         }
 
diff --git a/services/core/java/com/android/server/wm/LetterboxUiController.java b/services/core/java/com/android/server/wm/LetterboxUiController.java
index 3f24545..f220c9d 100644
--- a/services/core/java/com/android/server/wm/LetterboxUiController.java
+++ b/services/core/java/com/android/server/wm/LetterboxUiController.java
@@ -1084,6 +1084,10 @@
                     || mUserAspectRatio == USER_MIN_ASPECT_RATIO_FULLSCREEN);
     }
 
+    boolean hasFullscreenOverride() {
+        return isSystemOverrideToFullscreenEnabled() || shouldApplyUserFullscreenOverride();
+    }
+
     float getUserMinAspectRatio() {
         switch (mUserAspectRatio) {
             case USER_MIN_ASPECT_RATIO_DISPLAY_SIZE:
diff --git a/services/tests/displayservicetests/src/com/android/server/display/DisplayManagerServiceTest.java b/services/tests/displayservicetests/src/com/android/server/display/DisplayManagerServiceTest.java
index 55a6248..b0eee08 100644
--- a/services/tests/displayservicetests/src/com/android/server/display/DisplayManagerServiceTest.java
+++ b/services/tests/displayservicetests/src/com/android/server/display/DisplayManagerServiceTest.java
@@ -2633,11 +2633,19 @@
         // Create default display device
         createFakeDisplayDevice(displayManager, new float[]{60f}, Display.TYPE_INTERNAL);
         callback.waitForExpectedEvent();
+
+        callback.expectsEvent(EVENT_DISPLAY_ADDED);
         FakeDisplayDevice displayDevice =
                 createFakeDisplayDevice(displayManager, new float[]{60f}, Display.TYPE_EXTERNAL);
+        callback.waitForExpectedEvent();
+
+        callback.expectsEvent(EVENT_DISPLAY_REMOVED);
+        displayManager.onBootPhase(SystemService.PHASE_BOOT_COMPLETED);
+        callback.waitForExpectedEvent();
+
+        callback.expectsEvent(EVENT_DISPLAY_ADDED);
         LogicalDisplay display =
                 logicalDisplayMapper.getDisplayLocked(displayDevice, /* includeDisabled= */ true);
-        callback.expectsEvent(EVENT_DISPLAY_ADDED);
         logicalDisplayMapper.setEnabledLocked(display, /* isEnabled= */ true);
         logicalDisplayMapper.updateLogicalDisplays();
         callback.waitForExpectedEvent();
@@ -2660,6 +2668,7 @@
         LogicalDisplayMapper logicalDisplayMapper = displayManager.getLogicalDisplayMapper();
         FakeDisplayManagerCallback callback = new FakeDisplayManagerCallback();
         bs.registerCallbackWithEventMask(callback, STANDARD_DISPLAY_EVENTS);
+        displayManager.onBootPhase(SystemService.PHASE_BOOT_COMPLETED);
         callback.expectsEvent(EVENT_DISPLAY_ADDED);
         // Create default display device
         createFakeDisplayDevice(displayManager, new float[]{60f}, Display.TYPE_INTERNAL);
@@ -2673,7 +2682,6 @@
         logicalDisplayMapper.setEnabledLocked(display, /* isEnabled= */ true);
         logicalDisplayMapper.updateLogicalDisplays();
         callback.waitForExpectedEvent();
-        callback.clear();
 
         assertThrows(SecurityException.class, () -> bs.disableConnectedDisplay(displayId));
     }
@@ -3376,7 +3384,7 @@
 
         void waitForExpectedEvent(Duration timeout) {
             try {
-                assertWithMessage("Event '" + mExpectedEvent + "' is received.")
+                assertWithMessage("Expected '" + mExpectedEvent + "'")
                         .that(mLatch.await(timeout.toMillis(), TimeUnit.MILLISECONDS)).isTrue();
             } catch (InterruptedException ex) {
                 throw new AssertionError("Waiting for expected event interrupted", ex);
diff --git a/services/tests/uiservicestests/src/com/android/server/notification/NotificationManagerServiceTest.java b/services/tests/uiservicestests/src/com/android/server/notification/NotificationManagerServiceTest.java
index 6106278..f08fbde 100755
--- a/services/tests/uiservicestests/src/com/android/server/notification/NotificationManagerServiceTest.java
+++ b/services/tests/uiservicestests/src/com/android/server/notification/NotificationManagerServiceTest.java
@@ -7916,8 +7916,9 @@
         setAppInForegroundForToasts(mUid, true);
 
         // enqueue toast -> toast should still enqueue
-        enqueueToast(testPackage, new TestableToastCallback());
+        boolean wasEnqueued = enqueueToast(testPackage, new TestableToastCallback());
         assertEquals(1, mService.mToastQueue.size());
+        assertThat(wasEnqueued).isTrue();
     }
 
     @Test
@@ -7936,8 +7937,9 @@
         setAppInForegroundForToasts(mUid, false);
 
         // enqueue toast -> no toasts enqueued
-        enqueueToast(testPackage, new TestableToastCallback());
+        boolean wasEnqueued = enqueueToast(testPackage, new TestableToastCallback());
         assertEquals(0, mService.mToastQueue.size());
+        assertThat(wasEnqueued).isFalse();
     }
 
     @Test
@@ -8045,8 +8047,9 @@
         setAppInForegroundForToasts(mUid, true);
 
         // enqueue toast -> toast should still enqueue
-        enqueueTextToast(testPackage, "Text");
+        boolean wasEnqueued = enqueueTextToast(testPackage, "Text");
         assertEquals(1, mService.mToastQueue.size());
+        assertThat(wasEnqueued).isTrue();
     }
 
     @Test
@@ -8065,8 +8068,9 @@
         setAppInForegroundForToasts(mUid, false);
 
         // enqueue toast -> toast should still enqueue
-        enqueueTextToast(testPackage, "Text");
+        boolean wasEnqueued = enqueueTextToast(testPackage, "Text");
         assertEquals(1, mService.mToastQueue.size());
+        assertThat(wasEnqueued).isTrue();
     }
 
     @Test
@@ -8220,8 +8224,9 @@
         setAppInForegroundForToasts(mUid, false);
 
         // enqueue toast -> toast should still enqueue
-        enqueueToast(testPackage, new TestableToastCallback());
+        boolean wasEnqueued = enqueueToast(testPackage, new TestableToastCallback());
         assertEquals(1, mService.mToastQueue.size());
+        assertThat(wasEnqueued).isTrue();
         verify(mAm).setProcessImportant(any(), anyInt(), eq(true), any());
     }
 
@@ -8242,8 +8247,9 @@
         setAppInForegroundForToasts(mUid, true);
 
         // enqueue toast -> toast should still enqueue
-        enqueueTextToast(testPackage, "Text");
+        boolean wasEnqueued = enqueueTextToast(testPackage, "Text");
         assertEquals(1, mService.mToastQueue.size());
+        assertThat(wasEnqueued).isTrue();
         verify(mAm).setProcessImportant(any(), anyInt(), eq(false), any());
     }
 
@@ -8264,8 +8270,9 @@
         setAppInForegroundForToasts(mUid, false);
 
         // enqueue toast -> toast should still enqueue
-        enqueueTextToast(testPackage, "Text");
+        boolean wasEnqueued = enqueueTextToast(testPackage, "Text");
         assertEquals(1, mService.mToastQueue.size());
+        assertThat(wasEnqueued).isTrue();
         verify(mAm).setProcessImportant(any(), anyInt(), eq(false), any());
     }
 
@@ -8274,7 +8281,8 @@
         allowTestPackageToToast();
 
         // enqueue toast -> no toasts enqueued
-        enqueueTextToast(TEST_PACKAGE, "Text");
+        boolean wasEnqueued = enqueueTextToast(TEST_PACKAGE, "Text");
+        assertThat(wasEnqueued).isTrue();
 
         verifyToastShownForTestPackage("Text", DEFAULT_DISPLAY);
     }
@@ -8367,10 +8375,11 @@
                 .thenReturn(false);
 
         // enqueue toast -> no toasts enqueued
-        enqueueTextToast(testPackage, "Text");
+        boolean wasEnqueued = enqueueTextToast(testPackage, "Text");
         verify(mStatusBar, never()).showToast(anyInt(), any(), any(), any(), any(), anyInt(), any(),
                 anyInt());
         assertEquals(0, mService.mToastQueue.size());
+        assertThat(wasEnqueued).isFalse();
     }
 
     @Test
@@ -8390,10 +8399,11 @@
         when(mPermissionHelper.hasPermission(mUid)).thenReturn(true);
 
         // enqueue toast -> no toasts enqueued
-        enqueueToast(testPackage, new TestableToastCallback());
+        boolean wasEnqueued = enqueueToast(testPackage, new TestableToastCallback());
         verify(mStatusBar, never()).showToast(anyInt(), any(), any(), any(), any(), anyInt(), any(),
                 anyInt());
         assertEquals(0, mService.mToastQueue.size());
+        assertThat(wasEnqueued).isFalse();
     }
 
     @Test
@@ -8415,8 +8425,9 @@
         setAppInForegroundForToasts(mUid, false);
 
         // enqueue toast -> no toasts enqueued
-        enqueueToast(testPackage, new TestableToastCallback());
+        boolean wasEnqueued = enqueueToast(testPackage, new TestableToastCallback());
         assertEquals(0, mService.mToastQueue.size());
+        assertThat(wasEnqueued).isFalse();
     }
 
     @Test
@@ -8437,8 +8448,9 @@
         setAppInForegroundForToasts(mUid, false);
 
         // enqueue toast -> system toast can still be enqueued
-        enqueueToast(testPackage, new TestableToastCallback());
+        boolean wasEnqueued = enqueueToast(testPackage, new TestableToastCallback());
         assertEquals(1, mService.mToastQueue.size());
+        assertThat(wasEnqueued).isTrue();
     }
 
     @Test
@@ -8458,7 +8470,12 @@
 
         // Trying to quickly enqueue more toast than allowed.
         for (int i = 0; i < NotificationManagerService.MAX_PACKAGE_TOASTS + 1; i++) {
-            enqueueTextToast(testPackage, "Text");
+            boolean wasEnqueued = enqueueTextToast(testPackage, "Text");
+            if (i < NotificationManagerService.MAX_PACKAGE_TOASTS) {
+                assertThat(wasEnqueued).isTrue();
+            } else {
+                assertThat(wasEnqueued).isFalse();
+            }
         }
         // Only allowed number enqueued, rest ignored.
         assertEquals(NotificationManagerService.MAX_PACKAGE_TOASTS, mService.mToastQueue.size());
@@ -15089,25 +15106,27 @@
                 .thenReturn(false);
     }
 
-    private void enqueueToast(String testPackage, ITransientNotification callback)
+    private boolean enqueueToast(String testPackage, ITransientNotification callback)
             throws RemoteException {
-        enqueueToast((INotificationManager) mService.mService, testPackage, new Binder(), callback);
+        return enqueueToast((INotificationManager) mService.mService, testPackage, new Binder(),
+                callback);
     }
 
-    private void enqueueToast(INotificationManager service, String testPackage,
+    private boolean enqueueToast(INotificationManager service, String testPackage,
             IBinder token, ITransientNotification callback) throws RemoteException {
-        service.enqueueToast(testPackage, token, callback, TOAST_DURATION, /* isUiContext= */ true,
-                DEFAULT_DISPLAY);
+        return service.enqueueToast(testPackage, token, callback, TOAST_DURATION, /* isUiContext= */
+                true, DEFAULT_DISPLAY);
     }
 
-    private void enqueueTextToast(String testPackage, CharSequence text) throws RemoteException {
-        enqueueTextToast(testPackage, text, /* isUiContext= */ true, DEFAULT_DISPLAY);
+    private boolean enqueueTextToast(String testPackage, CharSequence text) throws RemoteException {
+        return enqueueTextToast(testPackage, text, /* isUiContext= */ true, DEFAULT_DISPLAY);
     }
 
-    private void enqueueTextToast(String testPackage, CharSequence text, boolean isUiContext,
+    private boolean enqueueTextToast(String testPackage, CharSequence text, boolean isUiContext,
             int displayId) throws RemoteException {
-        ((INotificationManager) mService.mService).enqueueTextToast(testPackage, new Binder(), text,
-                TOAST_DURATION, isUiContext, displayId, /* textCallback= */ null);
+        return ((INotificationManager) mService.mService).enqueueTextToast(testPackage,
+                new Binder(), text, TOAST_DURATION, isUiContext, displayId,
+                /* textCallback= */ null);
     }
 
     private void mockIsVisibleBackgroundUsersSupported(boolean supported) {
diff --git a/services/tests/vibrator/AndroidManifest.xml b/services/tests/vibrator/AndroidManifest.xml
index a14ea55..c0f514f 100644
--- a/services/tests/vibrator/AndroidManifest.xml
+++ b/services/tests/vibrator/AndroidManifest.xml
@@ -30,6 +30,8 @@
     <uses-permission android:name="android.permission.ACCESS_VIBRATOR_STATE" />
     <!-- Required to set always-on vibrations -->
     <uses-permission android:name="android.permission.VIBRATE_ALWAYS_ON" />
+    <!-- Required to play system-only haptic feedback constants -->
+    <uses-permission android:name="android.permission.VIBRATE_SYSTEM_CONSTANTS" />
 
     <application android:debuggable="true">
         <uses-library android:name="android.test.mock" android:required="true" />
diff --git a/services/tests/vibrator/src/com/android/server/vibrator/HapticFeedbackVibrationProviderTest.java b/services/tests/vibrator/src/com/android/server/vibrator/HapticFeedbackVibrationProviderTest.java
index e3d4596..633a3c9 100644
--- a/services/tests/vibrator/src/com/android/server/vibrator/HapticFeedbackVibrationProviderTest.java
+++ b/services/tests/vibrator/src/com/android/server/vibrator/HapticFeedbackVibrationProviderTest.java
@@ -27,6 +27,8 @@
 import static android.os.VibrationEffect.EFFECT_CLICK;
 import static android.os.VibrationEffect.EFFECT_TEXTURE_TICK;
 import static android.os.VibrationEffect.EFFECT_TICK;
+import static android.view.HapticFeedbackConstants.BIOMETRIC_CONFIRM;
+import static android.view.HapticFeedbackConstants.BIOMETRIC_REJECT;
 import static android.view.HapticFeedbackConstants.CLOCK_TICK;
 import static android.view.HapticFeedbackConstants.CONTEXT_CLICK;
 import static android.view.HapticFeedbackConstants.KEYBOARD_RELEASE;
@@ -80,6 +82,8 @@
             new int[] {SCROLL_ITEM_FOCUS, SCROLL_LIMIT, SCROLL_TICK};
     private static final int[] KEYBOARD_FEEDBACK_CONSTANTS =
             new int[] {KEYBOARD_TAP, KEYBOARD_RELEASE};
+    private static final int[] BIOMETRIC_FEEDBACK_CONSTANTS =
+            new int[] {BIOMETRIC_CONFIRM, BIOMETRIC_REJECT};
 
     private static final float KEYBOARD_VIBRATION_FIXED_AMPLITUDE = 0.62f;
 
@@ -283,6 +287,17 @@
     }
 
     @Test
+    public void testVibrationAttribute_biometricConstants_returnsCommunicationRequestUsage() {
+        HapticFeedbackVibrationProvider hapticProvider = createProviderWithDefaultCustomizations();
+
+        for (int effectId : BIOMETRIC_FEEDBACK_CONSTANTS) {
+            VibrationAttributes attrs = hapticProvider.getVibrationAttributesForHapticFeedback(
+                    effectId, /* bypassVibrationIntensitySetting= */ false, /* fromIme= */ false);
+            assertThat(attrs.getUsage()).isEqualTo(VibrationAttributes.USAGE_COMMUNICATION_REQUEST);
+        }
+    }
+
+    @Test
     public void testVibrationAttribute_forNotBypassingIntensitySettings() {
         HapticFeedbackVibrationProvider hapticProvider = createProviderWithDefaultCustomizations();
 
@@ -422,6 +437,15 @@
         }
     }
 
+    @Test
+    public void testIsRestricted_biometricConstants_returnsTrue() {
+        HapticFeedbackVibrationProvider hapticProvider = createProviderWithDefaultCustomizations();
+
+        for (int effectId : BIOMETRIC_FEEDBACK_CONSTANTS) {
+            assertThat(hapticProvider.isRestrictedHapticFeedback(effectId)).isTrue();
+        }
+    }
+
     private HapticFeedbackVibrationProvider createProviderWithDefaultCustomizations() {
         return createProvider(/* customizations= */ null);
     }
diff --git a/services/tests/vibrator/src/com/android/server/vibrator/VibratorManagerServiceTest.java b/services/tests/vibrator/src/com/android/server/vibrator/VibratorManagerServiceTest.java
index 185677f..d6c0fef 100644
--- a/services/tests/vibrator/src/com/android/server/vibrator/VibratorManagerServiceTest.java
+++ b/services/tests/vibrator/src/com/android/server/vibrator/VibratorManagerServiceTest.java
@@ -1410,6 +1410,70 @@
     }
 
     @Test
+    public void performHapticFeedback_restrictedConstantsWithoutPermission_doesNotVibrate()
+            throws Exception {
+        // Deny permission to vibrate with restricted constants
+        denyPermission(android.Manifest.permission.VIBRATE_SYSTEM_CONSTANTS);
+        // Public constant, no permission required
+        mHapticFeedbackVibrationMap.put(
+                HapticFeedbackConstants.CONFIRM,
+                VibrationEffect.createPredefined(VibrationEffect.EFFECT_CLICK));
+        // Hidden system-only constant, permission required
+        mHapticFeedbackVibrationMap.put(
+                HapticFeedbackConstants.BIOMETRIC_CONFIRM,
+                VibrationEffect.createPredefined(VibrationEffect.EFFECT_HEAVY_CLICK));
+        mockVibrators(1);
+        FakeVibratorControllerProvider fakeVibrator = mVibratorProviders.get(1);
+        fakeVibrator.setSupportedEffects(
+                VibrationEffect.EFFECT_CLICK, VibrationEffect.EFFECT_HEAVY_CLICK);
+        VibratorManagerService service = createSystemReadyService();
+
+        performHapticFeedbackAndWaitUntilFinished(
+                service, HapticFeedbackConstants.CONFIRM, /* always= */ false);
+
+        performHapticFeedbackAndWaitUntilFinished(
+                service, HapticFeedbackConstants.BIOMETRIC_CONFIRM, /* always= */ false);
+
+        List<VibrationEffectSegment> playedSegments = fakeVibrator.getAllEffectSegments();
+        assertEquals(1, playedSegments.size());
+        PrebakedSegment segment = (PrebakedSegment) playedSegments.get(0);
+        assertEquals(VibrationEffect.EFFECT_CLICK, segment.getEffectId());
+    }
+
+    @Test
+    public void performHapticFeedback_restrictedConstantsWithPermission_playsVibration()
+            throws Exception {
+        // Grant permission to vibrate with restricted constants
+        grantPermission(android.Manifest.permission.VIBRATE_SYSTEM_CONSTANTS);
+        // Public constant, no permission required
+        mHapticFeedbackVibrationMap.put(
+                HapticFeedbackConstants.CONFIRM,
+                VibrationEffect.createPredefined(VibrationEffect.EFFECT_CLICK));
+        // Hidden system-only constant, permission required
+        mHapticFeedbackVibrationMap.put(
+                HapticFeedbackConstants.BIOMETRIC_CONFIRM,
+                VibrationEffect.createPredefined(VibrationEffect.EFFECT_HEAVY_CLICK));
+        mockVibrators(1);
+        FakeVibratorControllerProvider fakeVibrator = mVibratorProviders.get(1);
+        fakeVibrator.setSupportedEffects(
+                VibrationEffect.EFFECT_CLICK, VibrationEffect.EFFECT_HEAVY_CLICK);
+        VibratorManagerService service = createSystemReadyService();
+
+        performHapticFeedbackAndWaitUntilFinished(
+                service, HapticFeedbackConstants.CONFIRM, /* always= */ false);
+
+        performHapticFeedbackAndWaitUntilFinished(
+                service, HapticFeedbackConstants.BIOMETRIC_CONFIRM, /* always= */ false);
+
+        List<VibrationEffectSegment> playedSegments = fakeVibrator.getAllEffectSegments();
+        assertEquals(2, playedSegments.size());
+        assertEquals(VibrationEffect.EFFECT_CLICK,
+                ((PrebakedSegment) playedSegments.get(0)).getEffectId());
+        assertEquals(VibrationEffect.EFFECT_HEAVY_CLICK,
+                ((PrebakedSegment) playedSegments.get(1)).getEffectId());
+    }
+
+    @Test
     public void performHapticFeedback_doesNotVibrateWhenVibratorInfoNotReady() throws Exception {
         denyPermission(android.Manifest.permission.VIBRATE);
         mHapticFeedbackVibrationMap.put(
diff --git a/services/tests/wmtests/src/com/android/server/wm/SizeCompatTests.java b/services/tests/wmtests/src/com/android/server/wm/SizeCompatTests.java
index 856ad2a..8a6059a 100644
--- a/services/tests/wmtests/src/com/android/server/wm/SizeCompatTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/SizeCompatTests.java
@@ -2363,6 +2363,92 @@
     }
 
     @Test
+    public void testUserOverrideFullscreenForLandscapeDisplay() {
+        final int displayWidth = 1600;
+        final int displayHeight = 1400;
+        setUpDisplaySizeWithApp(displayWidth, displayHeight);
+        mActivity.mDisplayContent.setIgnoreOrientationRequest(true /* ignoreOrientationRequest */);
+        spyOn(mActivity.mWmService.mLetterboxConfiguration);
+        doReturn(true).when(mActivity.mWmService.mLetterboxConfiguration)
+                .isUserAppAspectRatioFullscreenEnabled();
+
+        // Set user aspect ratio override
+        spyOn(mActivity.mLetterboxUiController);
+        doReturn(USER_MIN_ASPECT_RATIO_FULLSCREEN).when(mActivity.mLetterboxUiController)
+                .getUserMinAspectRatioOverrideCode();
+
+        prepareMinAspectRatio(mActivity, 16 / 9f, SCREEN_ORIENTATION_PORTRAIT);
+
+        final Rect bounds = mActivity.getBounds();
+
+        // bounds should be fullscreen
+        assertEquals(displayHeight, bounds.height());
+        assertEquals(displayWidth, bounds.width());
+    }
+
+    @Test
+    public void testUserOverrideFullscreenForPortraitDisplay() {
+        final int displayWidth = 1400;
+        final int displayHeight = 1600;
+        setUpDisplaySizeWithApp(displayWidth, displayHeight);
+        mActivity.mDisplayContent.setIgnoreOrientationRequest(true /* ignoreOrientationRequest */);
+        spyOn(mActivity.mWmService.mLetterboxConfiguration);
+        doReturn(true).when(mActivity.mWmService.mLetterboxConfiguration)
+                .isUserAppAspectRatioFullscreenEnabled();
+
+        // Set user aspect ratio override
+        spyOn(mActivity.mLetterboxUiController);
+        doReturn(USER_MIN_ASPECT_RATIO_FULLSCREEN).when(mActivity.mLetterboxUiController)
+                .getUserMinAspectRatioOverrideCode();
+
+        prepareMinAspectRatio(mActivity, 16 / 9f, SCREEN_ORIENTATION_LANDSCAPE);
+
+        final Rect bounds = mActivity.getBounds();
+
+        // bounds should be fullscreen
+        assertEquals(displayHeight, bounds.height());
+        assertEquals(displayWidth, bounds.width());
+    }
+
+    @Test
+    public void testSystemFullscreenOverrideForLandscapeDisplay() {
+        final int displayWidth = 1600;
+        final int displayHeight = 1400;
+        setUpDisplaySizeWithApp(displayWidth, displayHeight);
+        mActivity.mDisplayContent.setIgnoreOrientationRequest(true /* ignoreOrientationRequest */);
+        spyOn(mActivity.mLetterboxUiController);
+        doReturn(true).when(mActivity.mLetterboxUiController)
+                .isSystemOverrideToFullscreenEnabled();
+
+        prepareMinAspectRatio(mActivity, 16 / 9f, SCREEN_ORIENTATION_PORTRAIT);
+
+        final Rect bounds = mActivity.getBounds();
+
+        // bounds should be fullscreen
+        assertEquals(displayHeight, bounds.height());
+        assertEquals(displayWidth, bounds.width());
+    }
+
+    @Test
+    public void testSystemFullscreenOverrideForPortraitDisplay() {
+        final int displayWidth = 1400;
+        final int displayHeight = 1600;
+        setUpDisplaySizeWithApp(displayWidth, displayHeight);
+        mActivity.mDisplayContent.setIgnoreOrientationRequest(true /* ignoreOrientationRequest */);
+        spyOn(mActivity.mLetterboxUiController);
+        doReturn(true).when(mActivity.mLetterboxUiController)
+                .isSystemOverrideToFullscreenEnabled();
+
+        prepareMinAspectRatio(mActivity, 16 / 9f, SCREEN_ORIENTATION_LANDSCAPE);
+
+        final Rect bounds = mActivity.getBounds();
+
+        // bounds should be fullscreen
+        assertEquals(displayHeight, bounds.height());
+        assertEquals(displayWidth, bounds.width());
+    }
+
+    @Test
     public void testUserOverrideSplitScreenAspectRatioForLandscapeDisplay() {
         final int displayWidth = 1600;
         final int displayHeight = 1400;