Merge "Add method to pause expensive view updates during the app launch aimation" into tm-dev am: ed8f41b5e2

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/17085606

Change-Id: Icf822eb2f2e48110a77beac8e2f31e56ffb15e05

quickstep/src/com/android/launcher3/QuickstepTransitionManager.java

@@ -579,8 +579,8 @@ public class QuickstepTransitionManager implements OnDeviceProfileChangeListener
                 }
             }
 
-            // Pause page indicator animations as they lead to layer trashing.
-            mLauncher.getWorkspace().getPageIndicator().pauseAnimations();
+            // Pause expensive view updates as they can lead to layer thrashing and skipped frames.
+            mLauncher.pauseExpensiveViewUpdates();
 
             endListener = () -> {
                 viewsToAnimate.forEach(view -> {
@@ -590,7 +590,7 @@ public class QuickstepTransitionManager implements OnDeviceProfileChangeListener
                 if (scrimEnabled) {
                     mLauncher.getScrimView().setBackgroundColor(Color.TRANSPARENT);
                 }
-                mLauncher.getWorkspace().getPageIndicator().skipAnimationsToEnd();
+                mLauncher.resumeExpensiveViewUpdates();
             };
         }
 

src/com/android/launcher3/Launcher.java

@@ -3192,4 +3192,15 @@ public class Launcher extends StatefulActivity<LauncherState> implements Launche
     public ArrowPopup<?> getOptionsPopup() {
         return findViewById(R.id.popup_container);
     }
+
+    /** Pauses view updates that should not be run during the app launch animation. */
+    public void pauseExpensiveViewUpdates() {
+        // Pause page indicator animations as they lead to layer trashing.
+        getWorkspace().getPageIndicator().pauseAnimations();
+    }
+
+    /** Resumes view updates at the end of the app launch animation. */
+    public void resumeExpensiveViewUpdates() {
+        getWorkspace().getPageIndicator().skipAnimationsToEnd();
+    }
 }