Merge "Add param javadocs" into main
diff --git a/core/api/current.txt b/core/api/current.txt
index 4c1b27d..04c7873 100644
--- a/core/api/current.txt
+++ b/core/api/current.txt
@@ -6674,9 +6674,9 @@
     method @Deprecated public android.app.Notification.Builder addPerson(String);
     method @NonNull public android.app.Notification.Builder addPerson(android.app.Person);
     method @NonNull public android.app.Notification build();
-    method public android.widget.RemoteViews createBigContentView();
-    method public android.widget.RemoteViews createContentView();
-    method public android.widget.RemoteViews createHeadsUpContentView();
+    method @Deprecated public android.widget.RemoteViews createBigContentView();
+    method @Deprecated public android.widget.RemoteViews createContentView();
+    method @Deprecated public android.widget.RemoteViews createHeadsUpContentView();
     method @NonNull public android.app.Notification.Builder extend(android.app.Notification.Extender);
     method public android.os.Bundle getExtras();
     method @Deprecated public android.app.Notification getNotification();
diff --git a/core/java/android/app/Notification.java b/core/java/android/app/Notification.java
index 1129f9d..79cb09d 100644
--- a/core/java/android/app/Notification.java
+++ b/core/java/android/app/Notification.java
@@ -6068,11 +6068,19 @@
         }
 
         /**
-         * Construct a RemoteViews for the final 1U notification layout. In order:
-         *   1. Custom contentView from the caller
-         *   2. Style's proposed content view
-         *   3. Standard template view
+         * Construct a RemoteViews representing the standard notification layout.
+         *
+         * @deprecated For performance and system health reasons, this API is no longer required to
+         *  be used directly by the System UI when rendering Notifications to the user. While the UI
+         *  returned by this method will still represent the content of the Notification being
+         *  built, it may differ from the visual style of the system.
+         *
+         *  NOTE: this API has always had severe limitations; for example it does not support any
+         *  interactivity, it ignores the app theme, it hard-codes the colors from the system theme
+         *  at the time it is called, and it does Bitmap decoding on the main thread which can cause
+         *  UI jank.
          */
+        @Deprecated
         public RemoteViews createContentView() {
             return createContentView(false /* increasedheight */ );
         }
@@ -6181,8 +6189,19 @@
         }
 
         /**
-         * Construct a RemoteViews for the final big notification layout.
+         * Construct a RemoteViews representing the expanded notification layout.
+         *
+         * @deprecated For performance and system health reasons, this API is no longer required to
+         *  be used directly by the System UI when rendering Notifications to the user. While the UI
+         *  returned by this method will still represent the content of the Notification being
+         *  built, it may differ from the visual style of the system.
+         *
+         *  NOTE: this API has always had severe limitations; for example it does not support any
+         *  interactivity, it ignores the app theme, it hard-codes the colors from the system theme
+         *  at the time it is called, and it does Bitmap decoding on the main thread which can cause
+         *  UI jank.
          */
+        @Deprecated
         public RemoteViews createBigContentView() {
             RemoteViews result = null;
             if (useExistingRemoteView(mN.bigContentView)) {
@@ -6315,8 +6334,19 @@
         }
 
         /**
-         * Construct a RemoteViews for the final heads-up notification layout.
+         * Construct a RemoteViews representing the heads up notification layout.
+         *
+         * @deprecated For performance and system health reasons, this API is no longer required to
+         *  be used directly by the System UI when rendering Notifications to the user. While the UI
+         *  returned by this method will still represent the content of the Notification being
+         *  built, it may differ from the visual style of the system.
+         *
+         *  NOTE: this API has always had severe limitations; for example it does not support any
+         *  interactivity, it ignores the app theme, it hard-codes the colors from the system theme
+         *  at the time it is called, and it does Bitmap decoding on the main thread which can cause
+         *  UI jank.
          */
+        @Deprecated
         public RemoteViews createHeadsUpContentView() {
             return createHeadsUpContentView(false /* useIncreasedHeight */);
         }
diff --git a/core/java/android/view/MotionEvent.java b/core/java/android/view/MotionEvent.java
index 67a3978..0ae3e59 100644
--- a/core/java/android/view/MotionEvent.java
+++ b/core/java/android/view/MotionEvent.java
@@ -1775,9 +1775,9 @@
     @CriticalNative
     private static native void nativeOffsetLocation(long nativePtr, float deltaX, float deltaY);
     @CriticalNative
-    private static native float nativeGetXOffset(long nativePtr);
+    private static native float nativeGetRawXOffset(long nativePtr);
     @CriticalNative
-    private static native float nativeGetYOffset(long nativePtr);
+    private static native float nativeGetRawYOffset(long nativePtr);
     @CriticalNative
     private static native float nativeGetXPrecision(long nativePtr);
     @CriticalNative
@@ -3745,7 +3745,7 @@
                     nativeGetAction(mNativePtr), nativeGetFlags(mNativePtr),
                     nativeGetEdgeFlags(mNativePtr), nativeGetMetaState(mNativePtr),
                     nativeGetButtonState(mNativePtr), nativeGetClassification(mNativePtr),
-                    nativeGetXOffset(mNativePtr), nativeGetYOffset(mNativePtr),
+                    nativeGetRawXOffset(mNativePtr), nativeGetRawYOffset(mNativePtr),
                     nativeGetXPrecision(mNativePtr), nativeGetYPrecision(mNativePtr),
                     nativeGetDownTimeNanos(mNativePtr),
                     nativeGetEventTimeNanos(mNativePtr, HISTORY_CURRENT),
diff --git a/core/jni/android_view_MotionEvent.cpp b/core/jni/android_view_MotionEvent.cpp
index 23adb8f7..1a86363 100644
--- a/core/jni/android_view_MotionEvent.cpp
+++ b/core/jni/android_view_MotionEvent.cpp
@@ -411,8 +411,8 @@
             jniThrowNullPointerException(env, "pointerCoords");
             return;
         }
-        pointerCoordsToNative(env, pointerCoordsObj,
-                event->getXOffset(), event->getYOffset(), &rawPointerCoords[i]);
+        pointerCoordsToNative(env, pointerCoordsObj, event->getRawXOffset(), event->getRawYOffset(),
+                              &rawPointerCoords[i]);
         env->DeleteLocalRef(pointerCoordsObj);
     }
 
@@ -735,14 +735,14 @@
     return event->offsetLocation(deltaX, deltaY);
 }
 
-static jfloat android_view_MotionEvent_nativeGetXOffset(jlong nativePtr) {
+static jfloat android_view_MotionEvent_nativeGetRawXOffset(jlong nativePtr) {
     MotionEvent* event = reinterpret_cast<MotionEvent*>(nativePtr);
-    return event->getXOffset();
+    return event->getRawXOffset();
 }
 
-static jfloat android_view_MotionEvent_nativeGetYOffset(jlong nativePtr) {
+static jfloat android_view_MotionEvent_nativeGetRawYOffset(jlong nativePtr) {
     MotionEvent* event = reinterpret_cast<MotionEvent*>(nativePtr);
-    return event->getYOffset();
+    return event->getRawYOffset();
 }
 
 static jfloat android_view_MotionEvent_nativeGetXPrecision(jlong nativePtr) {
@@ -871,8 +871,8 @@
         {"nativeGetClassification", "(J)I",
          (void*)android_view_MotionEvent_nativeGetClassification},
         {"nativeOffsetLocation", "(JFF)V", (void*)android_view_MotionEvent_nativeOffsetLocation},
-        {"nativeGetXOffset", "(J)F", (void*)android_view_MotionEvent_nativeGetXOffset},
-        {"nativeGetYOffset", "(J)F", (void*)android_view_MotionEvent_nativeGetYOffset},
+        {"nativeGetRawXOffset", "(J)F", (void*)android_view_MotionEvent_nativeGetRawXOffset},
+        {"nativeGetRawYOffset", "(J)F", (void*)android_view_MotionEvent_nativeGetRawYOffset},
         {"nativeGetXPrecision", "(J)F", (void*)android_view_MotionEvent_nativeGetXPrecision},
         {"nativeGetYPrecision", "(J)F", (void*)android_view_MotionEvent_nativeGetYPrecision},
         {"nativeGetXCursorPosition", "(J)F",
diff --git a/libs/hwui/renderthread/VulkanManager.cpp b/libs/hwui/renderthread/VulkanManager.cpp
index b5f7caa..6ced91f 100644
--- a/libs/hwui/renderthread/VulkanManager.cpp
+++ b/libs/hwui/renderthread/VulkanManager.cpp
@@ -25,6 +25,7 @@
 #include <android/sync.h>
 #include <gui/TraceUtils.h>
 #include <include/gpu/ganesh/SkSurfaceGanesh.h>
+#include <include/gpu/ganesh/vk/GrVkBackendSemaphore.h>
 #include <include/gpu/ganesh/vk/GrVkBackendSurface.h>
 #include <include/gpu/ganesh/vk/GrVkDirectContext.h>
 #include <ui/FatVector.h>
@@ -597,15 +598,14 @@
                         close(fence_clone);
                         sync_wait(bufferInfo->dequeue_fence, -1 /* forever */);
                     } else {
-                        GrBackendSemaphore backendSemaphore;
-                        backendSemaphore.initVulkan(semaphore);
+                        GrBackendSemaphore beSemaphore = GrBackendSemaphores::MakeVk(semaphore);
                         // Skia will take ownership of the VkSemaphore and delete it once the wait
                         // has finished. The VkSemaphore also owns the imported fd, so it will
                         // close the fd when it is deleted.
-                        bufferInfo->skSurface->wait(1, &backendSemaphore);
+                        bufferInfo->skSurface->wait(1, &beSemaphore);
                         // The following flush blocks the GPU immediately instead of waiting for
                         // other drawing ops. It seems dequeue_fence is not respected otherwise.
-                        // TODO: remove the flush after finding why backendSemaphore is not working.
+                        // TODO: remove the flush after finding why beSemaphore is not working.
                         skgpu::ganesh::FlushAndSubmit(bufferInfo->skSurface.get());
                     }
                 }
@@ -625,8 +625,8 @@
 
     SharedSemaphoreInfo(PFN_vkDestroySemaphore destroyFunction, VkDevice device,
                         VkSemaphore semaphore)
-            : mDestroyFunction(destroyFunction), mDevice(device), mSemaphore(semaphore) {
-        mGrBackendSemaphore.initVulkan(semaphore);
+            : mDestroyFunction(destroyFunction), mDevice(device),
+              mGrBackendSemaphore(GrBackendSemaphores::MakeVk(semaphore)) {
     }
 
     ~SharedSemaphoreInfo() { mDestroyFunction(mDevice, mSemaphore, nullptr); }
@@ -798,8 +798,7 @@
         return UNKNOWN_ERROR;
     }
 
-    GrBackendSemaphore beSemaphore;
-    beSemaphore.initVulkan(semaphore);
+    GrBackendSemaphore beSemaphore = GrBackendSemaphores::MakeVk(semaphore);
 
     // Skia will take ownership of the VkSemaphore and delete it once the wait has finished. The
     // VkSemaphore also owns the imported fd, so it will close the fd when it is deleted.
diff --git a/native/android/input.cpp b/native/android/input.cpp
index 53699bc..0a22314 100644
--- a/native/android/input.cpp
+++ b/native/android/input.cpp
@@ -124,11 +124,11 @@
 }
 
 float AMotionEvent_getXOffset(const AInputEvent* motion_event) {
-    return static_cast<const MotionEvent*>(motion_event)->getXOffset();
+    return static_cast<const MotionEvent*>(motion_event)->getRawXOffset();
 }
 
 float AMotionEvent_getYOffset(const AInputEvent* motion_event) {
-    return static_cast<const MotionEvent*>(motion_event)->getYOffset();
+    return static_cast<const MotionEvent*>(motion_event)->getRawYOffset();
 }
 
 float AMotionEvent_getXPrecision(const AInputEvent* motion_event) {
diff --git a/packages/SettingsLib/src/com/android/settingslib/bluetooth/BluetoothLeBroadcastMetadataExt.kt b/packages/SettingsLib/src/com/android/settingslib/bluetooth/BluetoothLeBroadcastMetadataExt.kt
index da1fd55..0c7d6f0 100644
--- a/packages/SettingsLib/src/com/android/settingslib/bluetooth/BluetoothLeBroadcastMetadataExt.kt
+++ b/packages/SettingsLib/src/com/android/settingslib/bluetooth/BluetoothLeBroadcastMetadataExt.kt
@@ -311,7 +311,7 @@
         }
 
         builder.apply {
-            setSourceDevice(device, sourceAddrType)
+            setSourceDevice(device, addrType)
             setSourceAdvertisingSid(sourceAdvertiserSid)
             setBroadcastId(broadcastId)
             setBroadcastName(broadcastName)
diff --git a/packages/SystemUI/res/values/config.xml b/packages/SystemUI/res/values/config.xml
index e181d07..35f6a08 100644
--- a/packages/SystemUI/res/values/config.xml
+++ b/packages/SystemUI/res/values/config.xml
@@ -345,9 +345,6 @@
          the notification is not swiped enough to dismiss it. -->
     <bool name="config_showNotificationGear">true</bool>
 
-    <!-- Whether or not a background should be drawn behind a notification. -->
-    <bool name="config_drawNotificationBackground">false</bool>
-
     <!-- Whether or the notifications can be shown and dismissed with a drag. -->
     <bool name="config_enableNotificationShadeDrag">true</bool>
 
diff --git a/packages/SystemUI/src/com/android/keyguard/ClockEventController.kt b/packages/SystemUI/src/com/android/keyguard/ClockEventController.kt
index f28d405..8a2245d 100644
--- a/packages/SystemUI/src/com/android/keyguard/ClockEventController.kt
+++ b/packages/SystemUI/src/com/android/keyguard/ClockEventController.kt
@@ -404,7 +404,9 @@
                             if (nextAlarmMillis > 0) nextAlarmMillis else null,
                             SysuiR.string::status_bar_alarm.name
                         )
-                        .also { data -> clock?.run { events.onAlarmDataChanged(data) } }
+                        .also { data ->
+                            mainExecutor.execute { clock?.run { events.onAlarmDataChanged(data) } }
+                        }
             }
         }
 
diff --git a/packages/SystemUI/src/com/android/systemui/scrim/ScrimView.java b/packages/SystemUI/src/com/android/systemui/scrim/ScrimView.java
index d0585d3..20bd7c6 100644
--- a/packages/SystemUI/src/com/android/systemui/scrim/ScrimView.java
+++ b/packages/SystemUI/src/com/android/systemui/scrim/ScrimView.java
@@ -64,8 +64,6 @@
     private String mScrimName;
     private int mTintColor;
     private boolean mBlendWithMainColor = true;
-    private Runnable mChangeRunnable;
-    private Executor mChangeRunnableExecutor;
     private Executor mExecutor;
     private Looper mExecutorLooper;
     @Nullable
@@ -270,9 +268,6 @@
             mDrawable.invalidateSelf();
         }
 
-        if (mChangeRunnable != null) {
-            mChangeRunnableExecutor.execute(mChangeRunnable);
-        }
     }
 
     public int getTint() {
@@ -300,9 +295,6 @@
                 mViewAlpha = alpha;
 
                 mDrawable.setAlpha((int) (255 * alpha));
-                if (mChangeRunnable != null) {
-                    mChangeRunnableExecutor.execute(mChangeRunnable);
-                }
             }
         });
     }
@@ -311,14 +303,6 @@
         return mViewAlpha;
     }
 
-    /**
-     * Sets a callback that is invoked whenever the alpha, color, or tint change.
-     */
-    public void setChangeRunnable(Runnable changeRunnable, Executor changeRunnableExecutor) {
-        mChangeRunnable = changeRunnable;
-        mChangeRunnableExecutor = changeRunnableExecutor;
-    }
-
     @Override
     protected boolean canReceivePointerEvents() {
         return false;
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/LockscreenShadeTransitionController.kt b/packages/SystemUI/src/com/android/systemui/statusbar/LockscreenShadeTransitionController.kt
index 4ee8349..81f644f 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/LockscreenShadeTransitionController.kt
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/LockscreenShadeTransitionController.kt
@@ -352,10 +352,6 @@
     /** Called by the touch helper when the drag down was aborted and should be reset. */
     internal fun onDragDownReset() {
         logger.logDragDownAborted()
-        nsslController.setDimmed(
-            /* dimmed= */ true,
-            /* animate= */ true,
-        )
         nsslController.resetScrollPosition()
         nsslController.resetCheckSnoozeLeavebehind()
         setDragDownAmountAnimated(0f)
@@ -366,12 +362,7 @@
      *
      * @param above whether they dragged above it
      */
-    internal fun onCrossedThreshold(above: Boolean) {
-        nsslController.setDimmed(
-            /* dimmed= */ !above,
-            /* animate= */ true,
-        )
-    }
+    internal fun onCrossedThreshold(above: Boolean) {}
 
     /** Called by the touch helper when the drag down was started */
     internal fun onDragDownStarted(startingChild: ExpandableView?) {
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/ExpandableView.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/ExpandableView.java
index ea9df9a..05e8717 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/ExpandableView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/ExpandableView.java
@@ -275,15 +275,6 @@
         return getHeight();
     }
 
-    /**
-     * Sets the notification as dimmed. The default implementation does nothing.
-     *
-     * @param dimmed Whether the notification should be dimmed.
-     * @param fade Whether an animation should be played to change the state.
-     */
-    public void setDimmed(boolean dimmed, boolean fade) {
-    }
-
     public boolean isRemoved() {
         return false;
     }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/AmbientState.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/AmbientState.java
index c90acee..ab2f664 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/AmbientState.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/AmbientState.java
@@ -61,7 +61,6 @@
      */
     private StatusBarKeyguardViewManager mStatusBarKeyguardViewManager;
     private int mScrollY;
-    private boolean mDimmed;
     private float mOverScrollTopAmount;
     private float mOverScrollBottomAmount;
     private boolean mDozing;
@@ -344,14 +343,6 @@
         this.mScrollY = Math.max(scrollY, 0);
     }
 
-    /**
-     * @param dimmed Whether we are in a dimmed state (on the lockscreen), where the backgrounds are
-     *               translucent and everything is scaled back a bit.
-     */
-    public void setDimmed(boolean dimmed) {
-        mDimmed = dimmed;
-    }
-
     /** While dozing, we draw as little as possible, assuming a black background */
     public void setDozing(boolean dozing) {
         mDozing = dozing;
@@ -375,12 +366,6 @@
         mHideSensitive = hideSensitive;
     }
 
-    public boolean isDimmed() {
-        // While we are expanding from pulse, we want the notifications not to be dimmed, otherwise
-        // you'd see the difference to the pulsing notification
-        return mDimmed && !(isPulseExpanding() && mDozeAmount == 1.0f);
-    }
-
     public boolean isDozing() {
         return mDozing;
     }
@@ -768,7 +753,6 @@
         pw.println("mHideSensitive=" + mHideSensitive);
         pw.println("mShadeExpanded=" + mShadeExpanded);
         pw.println("mClearAllInProgress=" + mClearAllInProgress);
-        pw.println("mDimmed=" + mDimmed);
         pw.println("mStatusBarState=" + mStatusBarState);
         pw.println("mExpansionChanging=" + mExpansionChanging);
         pw.println("mPanelFullWidth=" + mIsSmallScreen);
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/AnimationFilter.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/AnimationFilter.java
index 5343cbf..03a1082 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/AnimationFilter.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/AnimationFilter.java
@@ -35,7 +35,6 @@
     boolean animateZ;
     boolean animateHeight;
     boolean animateTopInset;
-    boolean animateDimmed;
     boolean animateHideSensitive;
     boolean hasDelays;
     boolean hasGoToFullShadeEvent;
@@ -83,11 +82,6 @@
         return this;
     }
 
-    public AnimationFilter animateDimmed() {
-        animateDimmed = true;
-        return this;
-    }
-
     public AnimationFilter animateHideSensitive() {
         animateHideSensitive = true;
         return this;
@@ -128,7 +122,6 @@
         animateZ |= filter.animateZ;
         animateHeight |= filter.animateHeight;
         animateTopInset |= filter.animateTopInset;
-        animateDimmed |= filter.animateDimmed;
         animateHideSensitive |= filter.animateHideSensitive;
         hasDelays |= filter.hasDelays;
         mAnimatedProperties.addAll(filter.mAnimatedProperties);
@@ -142,7 +135,6 @@
         animateZ = false;
         animateHeight = false;
         animateTopInset = false;
-        animateDimmed = false;
         animateHideSensitive = false;
         hasDelays = false;
         hasGoToFullShadeEvent = false;
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/ExpandableViewState.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/ExpandableViewState.java
index d0c5c82..d1e5ab0 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/ExpandableViewState.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/ExpandableViewState.java
@@ -88,7 +88,6 @@
             | ExpandableViewState.LOCATION_MAIN_AREA;
 
     public int height;
-    public boolean dimmed;
     public boolean hideSensitive;
     public boolean belowSpeedBump;
     public boolean inShelf;
@@ -128,7 +127,6 @@
         if (viewState instanceof ExpandableViewState) {
             ExpandableViewState svs = (ExpandableViewState) viewState;
             height = svs.height;
-            dimmed = svs.dimmed;
             hideSensitive = svs.hideSensitive;
             belowSpeedBump = svs.belowSpeedBump;
             clipTopAmount = svs.clipTopAmount;
@@ -155,9 +153,6 @@
                 expandableView.setActualHeight(newHeight, false /* notifyListeners */);
             }
 
-            // apply dimming
-            expandableView.setDimmed(this.dimmed, false /* animate */);
-
             // apply hiding sensitive
             expandableView.setHideSensitive(
                     this.hideSensitive, false /* animated */, 0 /* delay */, 0 /* duration */);
@@ -216,9 +211,6 @@
             abortAnimation(child, TAG_ANIMATOR_BOTTOM_INSET);
         }
 
-        // start dimmed animation
-        expandableView.setDimmed(this.dimmed, animationFilter.animateDimmed);
-
         // apply below the speed bump
         if (!NotificationIconContainerRefactor.isEnabled()) {
             expandableView.setBelowSpeedBump(this.belowSpeedBump);
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationChildrenContainer.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationChildrenContainer.java
index fa97300..28f874d 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationChildrenContainer.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationChildrenContainer.java
@@ -795,7 +795,6 @@
             } else {
                 childState.setZTranslation(0);
             }
-            childState.dimmed = parentState.dimmed;
             childState.hideSensitive = parentState.hideSensitive;
             childState.belowSpeedBump = parentState.belowSpeedBump;
             childState.clipTopAmount = 0;
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
index 27db84f..bfda6d5 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
@@ -29,10 +29,6 @@
 
 import static java.lang.annotation.RetentionPolicy.SOURCE;
 
-import android.animation.Animator;
-import android.animation.AnimatorListenerAdapter;
-import android.animation.TimeAnimator;
-import android.animation.ValueAnimator;
 import android.annotation.ColorInt;
 import android.annotation.DrawableRes;
 import android.annotation.FloatRange;
@@ -79,7 +75,6 @@
 
 import com.android.app.animation.Interpolators;
 import com.android.internal.annotations.VisibleForTesting;
-import com.android.internal.graphics.ColorUtils;
 import com.android.internal.jank.InteractionJankMonitor;
 import com.android.internal.policy.SystemBarUtils;
 import com.android.keyguard.BouncerPanelExpansionCalculator;
@@ -163,18 +158,11 @@
      * Sentinel value for no current active pointer. Used by {@link #mActivePointerId}.
      */
     private static final int INVALID_POINTER = -1;
-    /**
-     * The distance in pixels between sections when the sections are directly adjacent (no visible
-     * gap is drawn between them). In this case we don't want to round their corners.
-     */
-    private static final int DISTANCE_BETWEEN_ADJACENT_SECTIONS_PX = 1;
     private boolean mKeyguardBypassEnabled;
 
     private final ExpandHelper mExpandHelper;
     private NotificationSwipeHelper mSwipeHelper;
     private int mCurrentStackHeight = Integer.MAX_VALUE;
-    private final Paint mBackgroundPaint = new Paint();
-    private final boolean mShouldDrawNotificationBackground;
     private boolean mHighPriorityBeforeSpeedBump;
 
     private float mExpandedHeight;
@@ -263,7 +251,6 @@
     private OnEmptySpaceClickListener mOnEmptySpaceClickListener;
     private boolean mNeedsAnimation;
     private boolean mTopPaddingNeedsAnimation;
-    private boolean mDimmedNeedsAnimation;
     private boolean mHideSensitiveNeedsAnimation;
     private boolean mActivateNeedsAnimation;
     private boolean mGoToFullShadeNeedsAnimation;
@@ -350,40 +337,15 @@
         }
     };
     private final NotificationSection[] mSections;
-    private boolean mAnimateNextBackgroundTop;
-    private boolean mAnimateNextBackgroundBottom;
-    private boolean mAnimateNextSectionBoundsChange;
-    private @ColorInt int mBgColor;
-    private float mDimAmount;
-    private ValueAnimator mDimAnimator;
     private final ArrayList<ExpandableView> mTmpSortedChildren = new ArrayList<>();
-    private final Animator.AnimatorListener mDimEndListener = new AnimatorListenerAdapter() {
-        @Override
-        public void onAnimationEnd(Animator animation) {
-            mDimAnimator = null;
-        }
-    };
-    private final ValueAnimator.AnimatorUpdateListener mDimUpdateListener
-            = new ValueAnimator.AnimatorUpdateListener() {
-
-        @Override
-        public void onAnimationUpdate(ValueAnimator animation) {
-            setDimAmount((Float) animation.getAnimatedValue());
-        }
-    };
     protected ViewGroup mQsHeader;
     // Rect of QsHeader. Kept as a field just to avoid creating a new one each time.
     private final Rect mQsHeaderBound = new Rect();
     private boolean mContinuousShadowUpdate;
-    private boolean mContinuousBackgroundUpdate;
     private final ViewTreeObserver.OnPreDrawListener mShadowUpdater = () -> {
         updateViewShadows();
         return true;
     };
-    private final ViewTreeObserver.OnPreDrawListener mBackgroundUpdater = () -> {
-        updateBackground();
-        return true;
-    };
     private final Comparator<ExpandableView> mViewPositionComparator = (view, otherView) -> {
         float endY = view.getTranslationY() + view.getActualHeight();
         float otherEndY = otherView.getTranslationY() + otherView.getActualHeight();
@@ -481,7 +443,6 @@
     private boolean mHeadsUpAnimatingAway;
     private int mStatusBarState;
     private int mUpcomingStatusBarState;
-    private int mCachedBackgroundColor;
     private boolean mHeadsUpGoingAwayAnimationsAllowed = true;
     private final Runnable mReflingAndAnimateScroll = this::animateScroll;
     private int mCornerRadius;
@@ -581,7 +542,6 @@
      */
     private boolean mDismissUsingRowTranslationX = true;
     private ExpandableNotificationRow mTopHeadsUpRow;
-    private long mNumHeadsUp;
     private NotificationStackScrollLayoutController.TouchHandler mTouchHandler;
     private final ScreenOffAnimationController mScreenOffAnimationController;
     private boolean mShouldUseSplitNotificationShade;
@@ -595,7 +555,7 @@
         mSplitShadeStateController = splitShadeStateController;
         updateSplitNotificationShade();
     }
-    private FeatureFlags mFeatureFlags;
+    private final FeatureFlags mFeatureFlags;
 
     private final ExpandableView.OnHeightChangedListener mOnChildHeightChangedListener =
             new ExpandableView.OnHeightChangedListener() {
@@ -667,8 +627,6 @@
         mSections = mSectionsManager.createSectionsForBuckets();
 
         mAmbientState = Dependency.get(AmbientState.class);
-        mBgColor = Utils.getColorAttr(mContext,
-                com.android.internal.R.attr.materialColorSurfaceContainerHigh).getDefaultColor();
         int minHeight = res.getDimensionPixelSize(R.dimen.notification_min_height);
         int maxHeight = res.getDimensionPixelSize(R.dimen.notification_max_height);
         mSplitShadeMinContentHeight = res.getDimensionPixelSize(
@@ -680,16 +638,12 @@
 
         mStackScrollAlgorithm = createStackScrollAlgorithm(context);
         mStateAnimator = new StackStateAnimator(context, this);
-        mShouldDrawNotificationBackground =
-                res.getBoolean(R.bool.config_drawNotificationBackground);
         setOutlineProvider(mOutlineProvider);
 
         // We could set this whenever we 'requestChildUpdate' much like the viewTreeObserver, but
         // that adds a bunch of complexity, and drawing nothing isn't *that* expensive.
-        boolean willDraw = SceneContainerFlag.isEnabled()
-                || mShouldDrawNotificationBackground || mDebugLines;
+        boolean willDraw = SceneContainerFlag.isEnabled() || mDebugLines;
         setWillNotDraw(!willDraw);
-        mBackgroundPaint.setAntiAlias(true);
         if (mDebugLines) {
             mDebugPaint = new Paint();
             mDebugPaint.setColor(0xffff0000);
@@ -812,9 +766,6 @@
     }
 
     void updateBgColor() {
-        mBgColor = Utils.getColorAttr(mContext,
-                com.android.internal.R.attr.materialColorSurfaceContainerHigh).getDefaultColor();
-        updateBackgroundDimming();
         for (int i = 0; i < getChildCount(); i++) {
             View child = getChildAt(i);
             if (child instanceof ActivatableNotificationView activatableView) {
@@ -835,14 +786,6 @@
 
     protected void onDraw(Canvas canvas) {
         onJustBeforeDraw();
-        if (mShouldDrawNotificationBackground
-                && (mSections[0].getCurrentBounds().top
-                < mSections[mSections.length - 1].getCurrentBounds().bottom
-                || mAmbientState.isDozing())) {
-            drawBackground(canvas);
-        } else if (mInHeadsUpPinnedMode || mHeadsUpAnimatingAway) {
-            drawHeadsUpBackground(canvas);
-        }
 
         if (mDebugLines) {
             onDrawDebug(canvas);
@@ -930,150 +873,6 @@
         return textY;
     }
 
-    private void drawBackground(Canvas canvas) {
-        int lockScreenLeft = mSidePaddings;
-        int lockScreenRight = getWidth() - mSidePaddings;
-        int lockScreenTop = mSections[0].getCurrentBounds().top;
-        int lockScreenBottom = mSections[mSections.length - 1].getCurrentBounds().bottom;
-        int hiddenLeft = getWidth() / 2;
-        int hiddenTop = mTopPadding;
-
-        float yProgress = 1 - mInterpolatedHideAmount;
-        float xProgress = mHideXInterpolator.getInterpolation(
-                (1 - mLinearHideAmount) * mBackgroundXFactor);
-
-        int left = (int) MathUtils.lerp(hiddenLeft, lockScreenLeft, xProgress);
-        int right = (int) MathUtils.lerp(hiddenLeft, lockScreenRight, xProgress);
-        int top = (int) MathUtils.lerp(hiddenTop, lockScreenTop, yProgress);
-        int bottom = (int) MathUtils.lerp(hiddenTop, lockScreenBottom, yProgress);
-        mBackgroundAnimationRect.set(
-                left,
-                top,
-                right,
-                bottom);
-
-        int backgroundTopAnimationOffset = top - lockScreenTop;
-        // TODO(kprevas): this may not be necessary any more since we don't display the shelf in AOD
-        boolean anySectionHasVisibleChild = false;
-        for (NotificationSection section : mSections) {
-            if (section.needsBackground()) {
-                anySectionHasVisibleChild = true;
-                break;
-            }
-        }
-        boolean shouldDrawBackground;
-        if (mKeyguardBypassEnabled && onKeyguard()) {
-            shouldDrawBackground = isPulseExpanding();
-        } else {
-            shouldDrawBackground = !mAmbientState.isDozing() || anySectionHasVisibleChild;
-        }
-        if (shouldDrawBackground) {
-            drawBackgroundRects(canvas, left, right, top, backgroundTopAnimationOffset);
-        }
-
-        updateClipping();
-    }
-
-    /**
-     * Draws round rects for each background section.
-     * <p>
-     * We want to draw a round rect for each background section as defined by {@link #mSections}.
-     * However, if two sections are directly adjacent with no gap between them (e.g. on the
-     * lockscreen where the shelf can appear directly below the high priority section, or while
-     * scrolling the shade so that the top of the shelf is right at the bottom of the high priority
-     * section), we don't want to round the adjacent corners.
-     * <p>
-     * Since {@link Canvas} doesn't provide a way to draw a half-rounded rect, this means that we
-     * need to coalesce the backgrounds for adjacent sections and draw them as a single round rect.
-     * This method tracks the top of each rect we need to draw, then iterates through the visible
-     * sections.  If a section is not adjacent to the previous section, we draw the previous rect
-     * behind the sections we've accumulated up to that point, then start a new rect at the top of
-     * the current section.  When we're done iterating we will always have one rect left to draw.
-     */
-    private void drawBackgroundRects(Canvas canvas, int left, int right, int top,
-                                     int animationYOffset) {
-        int backgroundRectTop = top;
-        int lastSectionBottom =
-                mSections[0].getCurrentBounds().bottom + animationYOffset;
-        int currentLeft = left;
-        int currentRight = right;
-        boolean first = true;
-        for (NotificationSection section : mSections) {
-            if (!section.needsBackground()) {
-                continue;
-            }
-            int sectionTop = section.getCurrentBounds().top + animationYOffset;
-            int ownLeft = Math.min(Math.max(left, section.getCurrentBounds().left), right);
-            int ownRight = Math.max(Math.min(right, section.getCurrentBounds().right), ownLeft);
-            // If sections are directly adjacent to each other, we don't want to draw them
-            // as separate roundrects, as the rounded corners right next to each other look
-            // bad.
-            if (sectionTop - lastSectionBottom > DISTANCE_BETWEEN_ADJACENT_SECTIONS_PX
-                    || ((currentLeft != ownLeft || currentRight != ownRight) && !first)) {
-                canvas.drawRoundRect(currentLeft,
-                        backgroundRectTop,
-                        currentRight,
-                        lastSectionBottom,
-                        mCornerRadius, mCornerRadius, mBackgroundPaint);
-                backgroundRectTop = sectionTop;
-            }
-            currentLeft = ownLeft;
-            currentRight = ownRight;
-            lastSectionBottom =
-                    section.getCurrentBounds().bottom + animationYOffset;
-            first = false;
-        }
-        canvas.drawRoundRect(currentLeft,
-                backgroundRectTop,
-                currentRight,
-                lastSectionBottom,
-                mCornerRadius, mCornerRadius, mBackgroundPaint);
-    }
-
-    private void drawHeadsUpBackground(Canvas canvas) {
-        int left = mSidePaddings;
-        int right = getWidth() - mSidePaddings;
-
-        float top = getHeight();
-        float bottom = 0;
-        int childCount = getChildCount();
-        for (int i = 0; i < childCount; i++) {
-            View child = getChildAt(i);
-            if (child.getVisibility() != View.GONE
-                    && child instanceof ExpandableNotificationRow row) {
-                if ((row.isPinned() || row.isHeadsUpAnimatingAway()) && row.getTranslation() < 0
-                        && row.getProvider().shouldShowGutsOnSnapOpen()) {
-                    top = Math.min(top, row.getTranslationY());
-                    bottom = Math.max(bottom, row.getTranslationY() + row.getActualHeight());
-                }
-            }
-        }
-
-        if (top < bottom) {
-            canvas.drawRoundRect(
-                    left, top, right, bottom,
-                    mCornerRadius, mCornerRadius, mBackgroundPaint);
-        }
-    }
-
-    void updateBackgroundDimming() {
-        // No need to update the background color if it's not being drawn.
-        if (!mShouldDrawNotificationBackground) {
-            return;
-        }
-        // Interpolate between semi-transparent notification panel background color
-        // and white AOD separator.
-        float colorInterpolation = MathUtils.smoothStep(0.4f /* start */, 1f /* end */,
-                mLinearHideAmount);
-        int color = ColorUtils.blendARGB(mBgColor, Color.WHITE, colorInterpolation);
-
-        if (mCachedBackgroundColor != color) {
-            mCachedBackgroundColor = color;
-            mBackgroundPaint.setColor(color);
-            invalidate();
-        }
-    }
-
     private void reinitView() {
         initView(getContext(), mSwipeHelper, mNotificationStackSizeCalculator);
     }
@@ -1359,9 +1158,6 @@
 
     private void onPreDrawDuringAnimation() {
         mShelf.updateAppearance();
-        if (!mNeedsAnimation && !mChildrenUpdateRequested) {
-            updateBackground();
-        }
     }
 
     private void updateScrollStateForAddedChildren() {
@@ -2565,125 +2361,6 @@
         }
     }
 
-    private void updateBackground() {
-        // No need to update the background color if it's not being drawn.
-        if (!mShouldDrawNotificationBackground) {
-            return;
-        }
-
-        updateBackgroundBounds();
-        if (didSectionBoundsChange()) {
-            boolean animate = mAnimateNextSectionBoundsChange || mAnimateNextBackgroundTop
-                    || mAnimateNextBackgroundBottom || areSectionBoundsAnimating();
-            if (!isExpanded()) {
-                abortBackgroundAnimators();
-                animate = false;
-            }
-            if (animate) {
-                startBackgroundAnimation();
-            } else {
-                for (NotificationSection section : mSections) {
-                    section.resetCurrentBounds();
-                }
-                invalidate();
-            }
-        } else {
-            abortBackgroundAnimators();
-        }
-        mAnimateNextBackgroundTop = false;
-        mAnimateNextBackgroundBottom = false;
-        mAnimateNextSectionBoundsChange = false;
-    }
-
-    private void abortBackgroundAnimators() {
-        for (NotificationSection section : mSections) {
-            section.cancelAnimators();
-        }
-    }
-
-    private boolean didSectionBoundsChange() {
-        for (NotificationSection section : mSections) {
-            if (section.didBoundsChange()) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    private boolean areSectionBoundsAnimating() {
-        for (NotificationSection section : mSections) {
-            if (section.areBoundsAnimating()) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    private void startBackgroundAnimation() {
-        // TODO(kprevas): do we still need separate fields for top/bottom?
-        // or can each section manage its own animation state?
-        NotificationSection firstVisibleSection = getFirstVisibleSection();
-        NotificationSection lastVisibleSection = getLastVisibleSection();
-        for (NotificationSection section : mSections) {
-            section.startBackgroundAnimation(
-                    section == firstVisibleSection
-                            ? mAnimateNextBackgroundTop
-                            : mAnimateNextSectionBoundsChange,
-                    section == lastVisibleSection
-                            ? mAnimateNextBackgroundBottom
-                            : mAnimateNextSectionBoundsChange);
-        }
-    }
-
-    /**
-     * Update the background bounds to the new desired bounds
-     */
-    private void updateBackgroundBounds() {
-        int left = mSidePaddings;
-        int right = getWidth() - mSidePaddings;
-        for (NotificationSection section : mSections) {
-            section.getBounds().left = left;
-            section.getBounds().right = right;
-        }
-
-        if (!mIsExpanded) {
-            for (NotificationSection section : mSections) {
-                section.getBounds().top = 0;
-                section.getBounds().bottom = 0;
-            }
-            return;
-        }
-        int minTopPosition;
-        NotificationSection lastSection = getLastVisibleSection();
-        boolean onKeyguard = mStatusBarState == StatusBarState.KEYGUARD;
-        if (!onKeyguard) {
-            minTopPosition = (int) (mTopPadding + mStackTranslation);
-        } else if (lastSection == null) {
-            minTopPosition = mTopPadding;
-        } else {
-            // The first sections could be empty while there could still be elements in later
-            // sections. The position of these first few sections is determined by the position of
-            // the first visible section.
-            NotificationSection firstVisibleSection = getFirstVisibleSection();
-            firstVisibleSection.updateBounds(0 /* minTopPosition*/, 0 /* minBottomPosition */,
-                    false /* shiftPulsingWithFirst */);
-            minTopPosition = firstVisibleSection.getBounds().top;
-        }
-        boolean shiftPulsingWithFirst = mNumHeadsUp <= 1
-                && (mAmbientState.isDozing() || (mKeyguardBypassEnabled && onKeyguard));
-        for (NotificationSection section : mSections) {
-            int minBottomPosition = minTopPosition;
-            if (section == lastSection) {
-                // We need to make sure the section goes all the way to the shelf
-                minBottomPosition = (int) (ViewState.getFinalTranslationY(mShelf)
-                        + mShelf.getIntrinsicHeight());
-            }
-            minTopPosition = section.updateBounds(minTopPosition, minBottomPosition,
-                    shiftPulsingWithFirst);
-            shiftPulsingWithFirst = false;
-        }
-    }
-
     private NotificationSection getFirstVisibleSection() {
         for (NotificationSection section : mSections) {
             if (section.getFirstVisibleChild() != null) {
@@ -3184,13 +2861,7 @@
                 mSections, getChildrenWithBackground());
 
         if (mAnimationsEnabled && mIsExpanded) {
-            mAnimateNextBackgroundTop = firstChild != previousFirstChild;
-            mAnimateNextBackgroundBottom = lastChild != previousLastChild || mAnimateBottomOnLayout;
-            mAnimateNextSectionBoundsChange = sectionViewsChanged;
         } else {
-            mAnimateNextBackgroundTop = false;
-            mAnimateNextBackgroundBottom = false;
-            mAnimateNextSectionBoundsChange = false;
         }
         mAmbientState.setLastVisibleBackgroundChild(lastChild);
         mAnimateBottomOnLayout = false;
@@ -3344,7 +3015,6 @@
             setAnimationRunning(true);
             mStateAnimator.startAnimationForEvents(mAnimationEvents, mGoToFullShadeDelay);
             mAnimationEvents.clear();
-            updateBackground();
             updateViewShadows();
         } else {
             applyCurrentState();
@@ -3359,7 +3029,6 @@
         generatePositionChangeEvents();
         generateTopPaddingEvent();
         generateActivateEvent();
-        generateDimmedEvent();
         generateHideSensitiveEvent();
         generateGoToFullShadeEvent();
         generateViewResizeEvent();
@@ -3577,14 +3246,6 @@
         mEverythingNeedsAnimation = false;
     }
 
-    private void generateDimmedEvent() {
-        if (mDimmedNeedsAnimation) {
-            mAnimationEvents.add(
-                    new AnimationEvent(null, AnimationEvent.ANIMATION_TYPE_DIMMED));
-        }
-        mDimmedNeedsAnimation = false;
-    }
-
     private void generateHideSensitiveEvent() {
         if (mHideSensitiveNeedsAnimation) {
             mAnimationEvents.add(
@@ -4486,48 +4147,6 @@
         mAnimationFinishedRunnables.clear();
     }
 
-    /**
-     * See {@link AmbientState#setDimmed}.
-     */
-    void setDimmed(boolean dimmed, boolean animate) {
-        dimmed &= onKeyguard();
-        mAmbientState.setDimmed(dimmed);
-        if (animate && mAnimationsEnabled) {
-            mDimmedNeedsAnimation = true;
-            mNeedsAnimation = true;
-            animateDimmed(dimmed);
-        } else {
-            setDimAmount(dimmed ? 1.0f : 0.0f);
-        }
-        requestChildrenUpdate();
-    }
-
-    @VisibleForTesting
-    boolean isDimmed() {
-        return mAmbientState.isDimmed();
-    }
-
-    private void setDimAmount(float dimAmount) {
-        mDimAmount = dimAmount;
-        updateBackgroundDimming();
-    }
-
-    private void animateDimmed(boolean dimmed) {
-        if (mDimAnimator != null) {
-            mDimAnimator.cancel();
-        }
-        float target = dimmed ? 1.0f : 0.0f;
-        if (target == mDimAmount) {
-            return;
-        }
-        mDimAnimator = TimeAnimator.ofFloat(mDimAmount, target);
-        mDimAnimator.setDuration(StackStateAnimator.ANIMATION_DURATION_DIMMED_ACTIVATED);
-        mDimAnimator.setInterpolator(Interpolators.FAST_OUT_SLOW_IN);
-        mDimAnimator.addListener(mDimEndListener);
-        mDimAnimator.addUpdateListener(mDimUpdateListener);
-        mDimAnimator.start();
-    }
-
     void updateSensitiveness(boolean animate, boolean hideSensitive) {
         if (hideSensitive != mAmbientState.isHideSensitive()) {
             int childCount = getChildCount();
@@ -4564,7 +4183,6 @@
 
         runAnimationFinishedRunnables();
         setAnimationRunning(false);
-        updateBackground();
         updateViewShadows();
     }
 
@@ -4714,7 +4332,6 @@
             invalidateOutline();
         }
         updateAlgorithmHeightAndPadding();
-        updateBackgroundDimming();
         requestChildrenUpdate();
         updateOwnTranslationZ();
     }
@@ -4747,21 +4364,6 @@
         }
     }
 
-    private int getNotGoneIndex(View child) {
-        int count = getChildCount();
-        int notGoneIndex = 0;
-        for (int i = 0; i < count; i++) {
-            View v = getChildAt(i);
-            if (child == v) {
-                return notGoneIndex;
-            }
-            if (v.getVisibility() != View.GONE) {
-                notGoneIndex++;
-            }
-        }
-        return -1;
-    }
-
     /**
      * Returns whether or not a History button is shown in the footer. If there is no footer, then
      * this will return false.
@@ -5266,13 +4868,10 @@
     void onStatePostChange(boolean fromShadeLocked) {
         boolean onKeyguard = onKeyguard();
 
-        mAmbientState.setDimmed(onKeyguard);
-
         if (mHeadsUpAppearanceController != null) {
             mHeadsUpAppearanceController.onStateChanged();
         }
 
-        setDimmed(onKeyguard, fromShadeLocked);
         setExpandingEnabled(!onKeyguard);
         if (!FooterViewRefactor.isEnabled()) {
             updateFooter();
@@ -5676,7 +5275,6 @@
      */
     public void setDozeAmount(float dozeAmount) {
         mAmbientState.setDozeAmount(dozeAmount);
-        updateContinuousBackgroundDrawing();
         updateStackPosition();
         requestChildrenUpdate();
     }
@@ -5711,7 +5309,6 @@
                 view.setTranslationY(wakeUplocation);
             }
         }
-        mDimmedNeedsAnimation = true;
     }
 
     void setAnimateBottomOnLayout(boolean animateBottomOnLayout) {
@@ -5763,7 +5360,6 @@
         updateFirstAndLastBackgroundViews();
         requestDisallowInterceptTouchEvent(true);
         updateContinuousShadowDrawing();
-        updateContinuousBackgroundDrawing();
         requestChildrenUpdate();
     }
 
@@ -5786,7 +5382,6 @@
      * @param numHeadsUp the number of active alerting notifications.
      */
     public void setNumHeadsUp(long numHeadsUp) {
-        mNumHeadsUp = numHeadsUp;
         mAmbientState.setHasHeadsUpEntries(numHeadsUp > 0);
     }
 
@@ -6160,19 +5755,6 @@
         mSpeedBumpIndexDirty = true;
     }
 
-    void updateContinuousBackgroundDrawing() {
-        boolean continuousBackground = !mAmbientState.isFullyAwake()
-                && mSwipeHelper.isSwiping();
-        if (continuousBackground != mContinuousBackgroundUpdate) {
-            mContinuousBackgroundUpdate = continuousBackground;
-            if (continuousBackground) {
-                getViewTreeObserver().addOnPreDrawListener(mBackgroundUpdater);
-            } else {
-                getViewTreeObserver().removeOnPreDrawListener(mBackgroundUpdater);
-            }
-        }
-    }
-
     private void resetAllSwipeState() {
         Trace.beginSection("NSSL.resetAllSwipeState()");
         mSwipeHelper.resetTouchState();
@@ -6259,7 +5841,6 @@
                         .animateHeight()
                         .animateTopInset()
                         .animateY()
-                        .animateDimmed()
                         .animateZ(),
 
                 // ANIMATION_TYPE_ACTIVATED_CHILD
@@ -6267,8 +5848,7 @@
                         .animateZ(),
 
                 // ANIMATION_TYPE_DIMMED
-                new AnimationFilter()
-                        .animateDimmed(),
+                new AnimationFilter(),
 
                 // ANIMATION_TYPE_CHANGE_POSITION
                 new AnimationFilter()
@@ -6283,7 +5863,6 @@
                         .animateHeight()
                         .animateTopInset()
                         .animateY()
-                        .animateDimmed()
                         .animateZ()
                         .hasDelays(),
 
@@ -6339,7 +5918,6 @@
                 // ANIMATION_TYPE_EVERYTHING
                 new AnimationFilter()
                         .animateAlpha()
-                        .animateDimmed()
                         .animateHideSensitive()
                         .animateHeight()
                         .animateTopInset()
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutController.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutController.java
index 7c13877..3bdd0e9 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutController.java
@@ -875,8 +875,6 @@
         mHeadsUpManager.setAnimationStateHandler(mView::setHeadsUpGoingAwayAnimationsAllowed);
         mDynamicPrivacyController.addListener(mDynamicPrivacyControllerListener);
 
-        mScrimController.setScrimBehindChangeRunnable(mView::updateBackgroundDimming);
-
         mLockscreenShadeTransitionController.setStackScroller(this);
 
         mLockscreenUserManager.addUserChangedListener(mLockscreenUserChangeListener);
@@ -1743,13 +1741,6 @@
     }
 
     /**
-     * Set the dimmed state for all of the notification views.
-     */
-    public void setDimmed(boolean dimmed, boolean animate) {
-        mView.setDimmed(dimmed, animate);
-    }
-
-    /**
      * @return the inset during the full shade transition, that needs to be added to the position
      * of the quick settings edge. This is relevant for media, that is transitioning
      * from the keyguard host to the quick settings one.
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/StackScrollAlgorithm.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/StackScrollAlgorithm.java
index 1ef9a8f..9b1952b 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/StackScrollAlgorithm.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/StackScrollAlgorithm.java
@@ -369,13 +369,11 @@
     /** Updates the dimmed and hiding sensitive states of the children. */
     private void updateDimmedAndHideSensitive(AmbientState ambientState,
             StackScrollAlgorithmState algorithmState) {
-        boolean dimmed = ambientState.isDimmed();
         boolean hideSensitive = ambientState.isHideSensitive();
         int childCount = algorithmState.visibleChildren.size();
         for (int i = 0; i < childCount; i++) {
             ExpandableView child = algorithmState.visibleChildren.get(i);
             ExpandableViewState childViewState = child.getViewState();
-            childViewState.dimmed = dimmed;
             childViewState.hideSensitive = hideSensitive;
         }
     }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
index d2e36b8..088f894 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
@@ -207,8 +207,6 @@
     private ScrimView mNotificationsScrim;
     private ScrimView mScrimBehind;
 
-    private Runnable mScrimBehindChangeRunnable;
-
     private final KeyguardStateController mKeyguardStateController;
     private final KeyguardUpdateMonitor mKeyguardUpdateMonitor;
     private final DozeParameters mDozeParameters;
@@ -415,11 +413,6 @@
         behindScrim.enableBottomEdgeConcave(mClipsQsScrim);
         mNotificationsScrim.enableRoundedCorners(true);
 
-        if (mScrimBehindChangeRunnable != null) {
-            mScrimBehind.setChangeRunnable(mScrimBehindChangeRunnable, mMainExecutor);
-            mScrimBehindChangeRunnable = null;
-        }
-
         final ScrimState[] states = ScrimState.values();
         for (int i = 0; i < states.length; i++) {
             states[i].init(mScrimInFront, mScrimBehind, mDozeParameters, mDockManager);
@@ -1542,16 +1535,6 @@
         mScrimBehind.postOnAnimationDelayed(callback, 32 /* delayMillis */);
     }
 
-    public void setScrimBehindChangeRunnable(Runnable changeRunnable) {
-        // TODO: remove this. This is necessary because of an order-of-operations limitation.
-        // The fix is to move more of these class into @SysUISingleton.
-        if (mScrimBehind == null) {
-            mScrimBehindChangeRunnable = changeRunnable;
-        } else {
-            mScrimBehind.setChangeRunnable(changeRunnable, mMainExecutor);
-        }
-    }
-
     private void updateThemeColors() {
         if (mScrimBehind == null) return;
         int background = Utils.getColorAttr(mScrimBehind.getContext(),
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/AmbientStateTest.kt b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/AmbientStateTest.kt
index 3d75288..4715b33 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/AmbientStateTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/AmbientStateTest.kt
@@ -57,39 +57,6 @@
             )
     }
 
-    // region isDimmed
-    @Test
-    fun isDimmed_whenTrue_shouldReturnTrue() {
-        sut.arrangeDimmed(true)
-
-        assertThat(sut.isDimmed).isTrue()
-    }
-
-    @Test
-    fun isDimmed_whenFalse_shouldReturnFalse() {
-        sut.arrangeDimmed(false)
-
-        assertThat(sut.isDimmed).isFalse()
-    }
-
-    @Test
-    fun isDimmed_whenDozeAmountIsEmpty_shouldReturnTrue() {
-        sut.arrangeDimmed(true)
-        sut.dozeAmount = 0f
-
-        assertThat(sut.isDimmed).isTrue()
-    }
-
-    @Test
-    fun isDimmed_whenPulseExpandingIsFalse_shouldReturnTrue() {
-        sut.arrangeDimmed(true)
-        sut.arrangePulseExpanding(false)
-        sut.dozeAmount = 1f // arrangePulseExpanding changes dozeAmount
-
-        assertThat(sut.isDimmed).isTrue()
-    }
-    // endregion
-
     // region pulseHeight
     @Test
     fun pulseHeight_whenValueChanged_shouldCallListener() {
@@ -383,12 +350,6 @@
 }
 
 // region Arrange helper methods.
-private fun AmbientState.arrangeDimmed(value: Boolean) {
-    isDimmed = value
-    dozeAmount = if (value) 0f else 1f
-    arrangePulseExpanding(!value)
-}
-
 private fun AmbientState.arrangePulseExpanding(value: Boolean) {
     if (value) {
         dozeAmount = 1f
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutTest.java
index f326cea..28dfbbb 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutTest.java
@@ -307,14 +307,6 @@
     }
 
     @Test
-    public void testNotDimmedOnKeyguard() {
-        when(mBarState.getState()).thenReturn(StatusBarState.SHADE);
-        mStackScroller.setDimmed(true /* dimmed */, false /* animate */);
-        mStackScroller.setDimmed(true /* dimmed */, true /* animate */);
-        assertFalse(mStackScroller.isDimmed());
-    }
-
-    @Test
     public void updateEmptyView_dndSuppressing() {
         when(mEmptyShadeView.willBeGone()).thenReturn(true);
 
diff --git a/services/core/java/com/android/server/location/contexthub/ContextHubClientBroker.java b/services/core/java/com/android/server/location/contexthub/ContextHubClientBroker.java
index fc99471..0ca4808 100644
--- a/services/core/java/com/android/server/location/contexthub/ContextHubClientBroker.java
+++ b/services/core/java/com/android/server/location/contexthub/ContextHubClientBroker.java
@@ -449,7 +449,7 @@
     }
 
     /**
-     * Sends a reliable message rom this client to a nanoapp.
+     * Sends a reliable message from this client to a nanoapp.
      *
      * @param message the message to send
      * @param transactionCallback The callback to use to confirm the delivery of the message for
@@ -473,6 +473,12 @@
             @Nullable IContextHubTransactionCallback transactionCallback) {
         ContextHubServiceUtil.checkPermissions(mContext);
 
+        // Clear the isReliable and messageSequenceNumber fields.
+        // These will be set to true and a real value if the message
+        // is reliable.
+        message.setIsReliable(false);
+        message.setMessageSequenceNumber(0);
+
         @ContextHubTransaction.Result int result;
         if (isRegistered()) {
             int authState = mMessageChannelNanoappIdMap.getOrDefault(
@@ -485,7 +491,9 @@
                 // Return a bland error code for apps targeting old SDKs since they wouldn't be able
                 // to use an error code added in S.
                 return ContextHubTransaction.RESULT_FAILED_UNKNOWN;
-            } else if (authState == AUTHORIZATION_UNKNOWN) {
+            }
+
+            if (authState == AUTHORIZATION_UNKNOWN) {
                 // Only check permissions the first time a nanoapp is queried since nanoapp
                 // permissions don't currently change at runtime. If the host permission changes
                 // later, that'll be checked by onOpChanged.
diff --git a/services/tests/vibrator/src/com/android/server/vibrator/GroupedAggregatedLogRecordsTest.java b/services/tests/vibrator/src/com/android/server/vibrator/GroupedAggregatedLogRecordsTest.java
index 038f1db..54ab367 100644
--- a/services/tests/vibrator/src/com/android/server/vibrator/GroupedAggregatedLogRecordsTest.java
+++ b/services/tests/vibrator/src/com/android/server/vibrator/GroupedAggregatedLogRecordsTest.java
@@ -135,7 +135,7 @@
         AggregatedLogRecord<TestSingleLogRecord> droppedRecord =
                 records.add(createRecord(GROUP_1, KEY_2, createTime++));
         assertThat(droppedRecord).isNotNull();
-        assertThat(droppedRecord.getLatest()).isEqualTo(mTestRecords.getFirst());
+        assertThat(droppedRecord.getLatest()).isEqualTo(mTestRecords.get(0));
 
         dumpRecords(records);
         assertGroupHeadersWrittenOnce(records, GROUP_1);
@@ -155,7 +155,7 @@
         AggregatedLogRecord<TestSingleLogRecord> droppedRecord =
                 records.add(createRecord(GROUP_1, KEY_1, createTime + AGGREGATION_TIME_LIMIT));
         assertThat(droppedRecord).isNotNull();
-        assertThat(droppedRecord.getLatest()).isEqualTo(mTestRecords.getFirst());
+        assertThat(droppedRecord.getLatest()).isEqualTo(mTestRecords.get(0));
 
         dumpRecords(records);
         assertGroupHeadersWrittenOnce(records, GROUP_1);