Address LAUNCHER_APP_LAUNCH_FROM_ICON jank.

- Delay app launch animations by a frame, and skip logic to skip the first frame.
- Note the icon pressed state animation still occurs, so there is still some
  visual feedback for the user that something is happening.

Bug: 181901105
Test: ensure animation still looks smooth (using window animation scale & record in slow mo)
Change-Id: Ia904b8b96301042c900e0589f33fc625c1c1148b
Merged-In: Ia904b8b96301042c900e0589f33fc625c1c1148b
diff --git a/quickstep/src/com/android/launcher3/LauncherAnimationRunner.java b/quickstep/src/com/android/launcher3/LauncherAnimationRunner.java
index be98157..1090099 100644
--- a/quickstep/src/com/android/launcher3/LauncherAnimationRunner.java
+++ b/quickstep/src/com/android/launcher3/LauncherAnimationRunner.java
@@ -152,16 +152,18 @@
 
         @UiThread
         public void setAnimation(AnimatorSet animation, Context context) {
-            setAnimation(animation, context, null);
+            setAnimation(animation, context, null, true);
 
         }
 
         /**
          * Sets the animation to play for this app launch
+         * @param skipFirstFrame Iff true, we skip the first frame of the animation.
+         *                       We set to false when skipping first frame causes jank.
          */
         @UiThread
         public void setAnimation(AnimatorSet animation, Context context,
-                @Nullable Runnable onCompleteCallback) {
+                @Nullable Runnable onCompleteCallback, boolean skipFirstFrame) {
             if (mInitialized) {
                 throw new IllegalStateException("Animation already initialized");
             }
@@ -187,10 +189,12 @@
                 });
                 mAnimator.start();
 
-                // Because t=0 has the app icon in its original spot, we can skip the
-                // first frame and have the same movement one frame earlier.
-                mAnimator.setCurrentPlayTime(
-                        Math.min(getSingleFrameMs(context), mAnimator.getTotalDuration()));
+                if (skipFirstFrame) {
+                    // Because t=0 has the app icon in its original spot, we can skip the
+                    // first frame and have the same movement one frame earlier.
+                    mAnimator.setCurrentPlayTime(
+                            Math.min(getSingleFrameMs(context), mAnimator.getTotalDuration()));
+                }
             }
         }
     }
diff --git a/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java b/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
index 26d407f..65df237 100644
--- a/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
+++ b/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
@@ -38,6 +38,7 @@
 import static com.android.launcher3.config.FeatureFlags.SEPARATE_RECENTS_ACTIVITY;
 import static com.android.launcher3.dragndrop.DragLayer.ALPHA_INDEX_TRANSITIONS;
 import static com.android.launcher3.statehandlers.DepthController.DEPTH;
+import static com.android.launcher3.util.DisplayController.getSingleFrameMs;
 import static com.android.quickstep.TaskUtils.taskIsATargetWithMode;
 import static com.android.quickstep.TaskViewUtils.findTaskViewToLaunch;
 import static com.android.systemui.shared.system.QuickStepContract.getWindowCornerRadius;
@@ -340,12 +341,17 @@
 
         final int rotationChange = getRotationChange(appTargets);
         // Note: the targetBounds are relative to the launcher
+        int startDelay = getSingleFrameMs(mLauncher);
         Rect windowTargetBounds = getWindowTargetBounds(appTargets, rotationChange);
-        anim.play(getOpeningWindowAnimators(v, appTargets, wallpaperTargets, nonAppTargets,
-                windowTargetBounds, areAllTargetsTranslucent(appTargets), rotationChange));
+        Animator windowAnimator = getOpeningWindowAnimators(v, appTargets, wallpaperTargets,
+                nonAppTargets, windowTargetBounds, areAllTargetsTranslucent(appTargets),
+                rotationChange);
+        windowAnimator.setStartDelay(startDelay);
+        anim.play(windowAnimator);
         if (launcherClosing) {
+            // Delay animation by a frame to avoid jank.
             Pair<AnimatorSet, Runnable> launcherContentAnimator =
-                    getLauncherContentAnimator(true /* isAppOpening */);
+                    getLauncherContentAnimator(true /* isAppOpening */, startDelay);
             anim.play(launcherContentAnimator.first);
             anim.addListener(new AnimatorListenerAdapter() {
                 @Override
@@ -436,8 +442,10 @@
      *
      * @param isAppOpening True when this is called when an app is opening.
      *                     False when this is called when an app is closing.
+     * @param startDelay Start delay duration.
      */
-    private Pair<AnimatorSet, Runnable> getLauncherContentAnimator(boolean isAppOpening) {
+    private Pair<AnimatorSet, Runnable> getLauncherContentAnimator(boolean isAppOpening,
+            int startDelay) {
         AnimatorSet launcherAnimator = new AnimatorSet();
         Runnable endListener;
 
@@ -528,6 +536,8 @@
                 mLauncher.getWorkspace().getPageIndicator().skipAnimationsToEnd();
             };
         }
+
+        launcherAnimator.setStartDelay(startDelay);
         return new Pair<>(launcherAnimator, endListener);
     }
 
@@ -633,7 +643,7 @@
                 ? 0 : getWindowCornerRadius(mLauncher.getResources());
         final float finalShadowRadius = appTargetsAreTranslucent ? 0 : mMaxShadowRadius;
 
-        appAnimator.addUpdateListener(new MultiValueUpdateListener() {
+        MultiValueUpdateListener listener = new MultiValueUpdateListener() {
             FloatProp mDx = new FloatProp(0, prop.dX, 0, prop.xDuration, AGGRESSIVE_EASE);
             FloatProp mDy = new FloatProp(0, prop.dY, 0, prop.yDuration, AGGRESSIVE_EASE);
 
@@ -662,7 +672,7 @@
                     ANIMATION_NAV_FADE_IN_DURATION, NAV_FADE_IN_INTERPOLATOR);
 
             @Override
-            public void onUpdate(float percent) {
+            public void onUpdate(float percent, boolean initOnly) {
                 // Calculate the size of the scaled icon.
                 float iconWidth = launcherIconBounds.width() * mIconScaleToFitScreen.value;
                 float iconHeight = launcherIconBounds.height() * mIconScaleToFitScreen.value;
@@ -707,6 +717,12 @@
                 floatingIconBounds.right += offsetX;
                 floatingIconBounds.bottom += offsetY;
 
+                if (initOnly) {
+                    floatingView.update(mIconAlpha.value, 255, floatingIconBounds, percent, 0f,
+                            mWindowRadius.value * scale, true /* isOpening */);
+                    return;
+                }
+
                 ArrayList<SurfaceParams> params = new ArrayList<>();
                 for (int i = appTargets.length - 1; i >= 0; i--) {
                     RemoteAnimationTargetCompat target = appTargets[i];
@@ -779,7 +795,10 @@
 
                 surfaceApplier.scheduleApply(params.toArray(new SurfaceParams[params.size()]));
             }
-        });
+        };
+        appAnimator.addUpdateListener(listener);
+        // Since we added a start delay, call update here to init the FloatingIconView properly.
+        listener.onUpdate(0, true /* initOnly */);
 
         animatorSet.playTogether(appAnimator, getBackgroundAnimator(appTargets));
         return animatorSet;
@@ -869,7 +888,7 @@
                     ANIMATION_NAV_FADE_IN_DURATION, NAV_FADE_IN_INTERPOLATOR);
 
             @Override
-            public void onUpdate(float percent) {
+            public void onUpdate(float percent, boolean initOnly) {
                 widgetBackgroundBounds.set(mDx.value - mWidth.value / 2f,
                         mDy.value - mHeight.value / 2f, mDx.value + mWidth.value / 2f,
                         mDy.value + mHeight.value / 2f);
@@ -1128,7 +1147,7 @@
                     DEACCEL_1_7);
 
             @Override
-            public void onUpdate(float percent) {
+            public void onUpdate(float percent, boolean initOnly) {
                 SurfaceParams[] params = new SurfaceParams[appTargets.length];
                 for (int i = appTargets.length - 1; i >= 0; i--) {
                     RemoteAnimationTargetCompat target = appTargets[i];
@@ -1278,8 +1297,7 @@
 
                     if (mLauncher.isInState(LauncherState.ALL_APPS)) {
                         Pair<AnimatorSet, Runnable> contentAnimator =
-                                getLauncherContentAnimator(false /* isAppOpening */);
-                        contentAnimator.first.setStartDelay(LAUNCHER_RESUME_START_DELAY);
+                                getLauncherContentAnimator(false, LAUNCHER_RESUME_START_DELAY);
                         anim.play(contentAnimator.first);
                         anim.addListener(new AnimatorListenerAdapter() {
                             @Override
@@ -1328,27 +1346,32 @@
 
             final boolean launchingFromWidget = mV instanceof LauncherAppWidgetHostView;
             final boolean launchingFromRecents = isLaunchingFromRecents(mV, appTargets);
+            final boolean skipFirstFrame;
             if (launchingFromWidget) {
                 composeWidgetLaunchAnimator(anim, (LauncherAppWidgetHostView) mV, appTargets,
                         wallpaperTargets, nonAppTargets);
                 addCujInstrumentation(
                         anim, InteractionJankMonitorWrapper.CUJ_APP_LAUNCH_FROM_WIDGET);
+                skipFirstFrame = true;
             } else if (launchingFromRecents) {
                 composeRecentsLaunchAnimator(anim, mV, appTargets, wallpaperTargets, nonAppTargets,
                         launcherClosing);
                 addCujInstrumentation(
                         anim, InteractionJankMonitorWrapper.CUJ_APP_LAUNCH_FROM_RECENTS);
+                skipFirstFrame = true;
             } else {
                 composeIconLaunchAnimator(anim, mV, appTargets, wallpaperTargets, nonAppTargets,
                         launcherClosing);
                 addCujInstrumentation(anim, InteractionJankMonitorWrapper.CUJ_APP_LAUNCH_FROM_ICON);
+                skipFirstFrame = false;
             }
 
             if (launcherClosing) {
                 anim.addListener(mForceInvisibleListener);
             }
 
-            result.setAnimation(anim, mLauncher, mOnEndCallback::executeAllAndDestroy);
+            result.setAnimation(anim, mLauncher, mOnEndCallback::executeAllAndDestroy,
+                    skipFirstFrame);
         }
     }
 
diff --git a/quickstep/src/com/android/quickstep/RecentsActivity.java b/quickstep/src/com/android/quickstep/RecentsActivity.java
index 6852642..e15066f 100644
--- a/quickstep/src/com/android/quickstep/RecentsActivity.java
+++ b/quickstep/src/com/android/quickstep/RecentsActivity.java
@@ -214,7 +214,8 @@
             AnimatorSet anim = composeRecentsLaunchAnimator(taskView, appTargets,
                     wallpaperTargets, nonAppTargets);
             anim.addListener(resetStateListener());
-            result.setAnimation(anim, RecentsActivity.this, onEndCallback::executeAllAndDestroy);
+            result.setAnimation(anim, RecentsActivity.this, onEndCallback::executeAllAndDestroy,
+                    true /* skipFirstFrame */);
         };
 
         final LauncherAnimationRunner wrapper = new WrappedLauncherAnimationRunner<>(
@@ -385,7 +386,8 @@
         anim.play(controller.getAnimationPlayer());
         anim.setDuration(HOME_APPEAR_DURATION);
         result.setAnimation(anim, this,
-                () -> getStateManager().goToState(RecentsState.HOME, false));
+                () -> getStateManager().goToState(RecentsState.HOME, false),
+                true /* skipFirstFrame */);
     }
 
     @Override
diff --git a/quickstep/src/com/android/quickstep/TaskViewUtils.java b/quickstep/src/com/android/quickstep/TaskViewUtils.java
index 59bd1ed..3293810 100644
--- a/quickstep/src/com/android/quickstep/TaskViewUtils.java
+++ b/quickstep/src/com/android/quickstep/TaskViewUtils.java
@@ -249,7 +249,7 @@
                             ANIMATION_NAV_FADE_IN_DURATION, NAV_FADE_IN_INTERPOLATOR);
 
                     @Override
-                    public void onUpdate(float percent) {
+                    public void onUpdate(float percent, boolean initOnly) {
                         final SurfaceParams.Builder navBuilder =
                                 new SurfaceParams.Builder(navBarTarget.leash);
                         if (mNavFadeIn.value > mNavFadeIn.getStartValue()) {
diff --git a/quickstep/src/com/android/quickstep/util/MultiValueUpdateListener.java b/quickstep/src/com/android/quickstep/util/MultiValueUpdateListener.java
index b4ae1ca..1c3c9c2 100644
--- a/quickstep/src/com/android/quickstep/util/MultiValueUpdateListener.java
+++ b/quickstep/src/com/android/quickstep/util/MultiValueUpdateListener.java
@@ -40,10 +40,14 @@
             newPercent = prop.mInterpolator.getInterpolation(newPercent);
             prop.value = prop.mEnd * newPercent + prop.mStart * (1 - newPercent);
         }
-        onUpdate(percent);
+        onUpdate(percent, false /* initOnly */);
     }
 
-    public abstract void onUpdate(float percent);
+    /**
+     * @param percent The total animation progress.
+     * @param initOnly When true, only does enough work to initialize the animation.
+     */
+    public abstract void onUpdate(float percent, boolean initOnly);
 
     public final class FloatProp {
 
diff --git a/quickstep/src/com/android/quickstep/util/RectFSpringAnim2.java b/quickstep/src/com/android/quickstep/util/RectFSpringAnim2.java
index 93b3482..c331a13 100644
--- a/quickstep/src/com/android/quickstep/util/RectFSpringAnim2.java
+++ b/quickstep/src/com/android/quickstep/util/RectFSpringAnim2.java
@@ -280,7 +280,7 @@
             }
 
             @Override
-            public void onUpdate(float percent) {}
+            public void onUpdate(float percent, boolean initOnly) {}
         };
     }
 
diff --git a/quickstep/src/com/android/quickstep/views/AllAppsEduView.java b/quickstep/src/com/android/quickstep/views/AllAppsEduView.java
index 00993e3..f67940a 100644
--- a/quickstep/src/com/android/quickstep/views/AllAppsEduView.java
+++ b/quickstep/src/com/android/quickstep/views/AllAppsEduView.java
@@ -173,7 +173,7 @@
             FloatProp mGradientAlpha = new FloatProp(0, 255, firstPart, secondPart * 0.3f, LINEAR);
 
             @Override
-            public void onUpdate(float progress) {
+            public void onUpdate(float progress, boolean initOnly) {
                 temp.set(circleBoundsOg);
                 temp.offset(0, (int) -mDeltaY.value);
                 Utilities.scaleRectAboutCenter(temp, mCircleScale.value);
diff --git a/src/com/android/launcher3/views/FloatingIconView.java b/src/com/android/launcher3/views/FloatingIconView.java
index 25cce69..3027db6 100644
--- a/src/com/android/launcher3/views/FloatingIconView.java
+++ b/src/com/android/launcher3/views/FloatingIconView.java
@@ -376,6 +376,7 @@
             if (mIconLoadResult.isIconLoaded) {
                 setIcon(mIconLoadResult.drawable, mIconLoadResult.badge,
                         mIconLoadResult.btvDrawable, mIconLoadResult.iconOffset);
+                setVisibility(VISIBLE);
                 setIconAndDotVisible(originalView, false);
             } else {
                 mIconLoadResult.onIconLoaded = () -> {