Apply rounded corners to startWindow

This removes the corner animation flickering happening when
starting a letterboxed app after a configuration change
(eg. Dark/Light mode)

Test: Manual
Fixes: 234107097

Change-Id: Iad9f4aaeb8edeeb56b0c88d7d0239843cd66a8f9

core/java/android/window/StartingWindowRemovalInfo.java

@@ -61,6 +61,12 @@ public final class StartingWindowRemovalInfo implements Parcelable {
      */
     public boolean deferRemoveForIme;
 
+    /**
+     * The rounded corner radius
+     * @hide
+     */
+    public float roundedCornerRadius;
+
     public StartingWindowRemovalInfo() {
 
     }
@@ -80,6 +86,7 @@ public final class StartingWindowRemovalInfo implements Parcelable {
         mainFrame = source.readTypedObject(Rect.CREATOR);
         playRevealAnimation = source.readBoolean();
         deferRemoveForIme = source.readBoolean();
+        roundedCornerRadius = source.readFloat();
     }
 
     @Override
@@ -89,6 +96,7 @@ public final class StartingWindowRemovalInfo implements Parcelable {
         dest.writeTypedObject(mainFrame, flags);
         dest.writeBoolean(playRevealAnimation);
         dest.writeBoolean(deferRemoveForIme);
+        dest.writeFloat(roundedCornerRadius);
     }
 
     @Override
@@ -96,6 +104,7 @@ public final class StartingWindowRemovalInfo implements Parcelable {
         return "StartingWindowRemovalInfo{taskId=" + taskId
                 + " frame=" + mainFrame
                 + " playRevealAnimation=" + playRevealAnimation
+                + " roundedCornerRadius=" + roundedCornerRadius
                 + " deferRemoveForIme=" + deferRemoveForIme + "}";
     }
 

libs/WindowManager/Shell/src/com/android/wm/shell/startingsurface/SplashScreenExitAnimation.java

@@ -50,13 +50,17 @@ public class SplashScreenExitAnimation implements Animator.AnimatorListener {
     private final float mIconStartAlpha;
     private final float mBrandingStartAlpha;
     private final TransactionPool mTransactionPool;
+    // TODO(b/261167708): Clean enter animation code after moving Letterbox code to Shell
+    private final float mRoundedCornerRadius;
 
     private Runnable mFinishCallback;
 
     SplashScreenExitAnimation(Context context, SplashScreenView view, SurfaceControl leash,
-            Rect frame, int mainWindowShiftLength, TransactionPool pool, Runnable handleFinish) {
+            Rect frame, int mainWindowShiftLength, TransactionPool pool, Runnable handleFinish,
+            float roundedCornerRadius) {
         mSplashScreenView = view;
         mFirstWindowSurface = leash;
+        mRoundedCornerRadius = roundedCornerRadius;
         if (frame != null) {
             mFirstWindowFrame.set(frame);
         }
@@ -97,7 +101,7 @@ public class SplashScreenExitAnimation implements Animator.AnimatorListener {
         SplashScreenExitAnimationUtils.startAnimations(mSplashScreenView, mFirstWindowSurface,
                 mMainWindowShiftLength, mTransactionPool, mFirstWindowFrame, mAnimationDuration,
                 mIconFadeOutDuration, mIconStartAlpha, mBrandingStartAlpha, mAppRevealDelay,
-                mAppRevealDuration, this);
+                mAppRevealDuration, this, mRoundedCornerRadius);
     }
 
     private void reset() {

libs/WindowManager/Shell/src/com/android/wm/shell/startingsurface/SplashScreenExitAnimationUtils.java

@@ -61,6 +61,24 @@ public class SplashScreenExitAnimationUtils {
             new PathInterpolator(0f, 0f, 0.4f, 1f);
     private static final Interpolator SHIFT_UP_INTERPOLATOR = new PathInterpolator(0f, 0f, 0f, 1f);
 
+    /**
+     * Creates and starts the animator to fade out the icon, reveal the app, and shift up main
+     * window with rounded corner radius.
+     */
+    static void startAnimations(ViewGroup splashScreenView,
+            SurfaceControl firstWindowSurface, int mainWindowShiftLength,
+            TransactionPool transactionPool, Rect firstWindowFrame, int animationDuration,
+            int iconFadeOutDuration, float iconStartAlpha, float brandingStartAlpha,
+            int appRevealDelay, int appRevealDuration, Animator.AnimatorListener animatorListener,
+            float roundedCornerRadius) {
+        ValueAnimator animator =
+                createAnimator(splashScreenView, firstWindowSurface, mainWindowShiftLength,
+                        transactionPool, firstWindowFrame, animationDuration, iconFadeOutDuration,
+                        iconStartAlpha, brandingStartAlpha, appRevealDelay, appRevealDuration,
+                        animatorListener, roundedCornerRadius);
+        animator.start();
+    }
+
     /**
      * Creates and starts the animator to fade out the icon, reveal the app, and shift up main
      * window.
@@ -71,12 +89,10 @@ public class SplashScreenExitAnimationUtils {
             TransactionPool transactionPool, Rect firstWindowFrame, int animationDuration,
             int iconFadeOutDuration, float iconStartAlpha, float brandingStartAlpha,
             int appRevealDelay, int appRevealDuration, Animator.AnimatorListener animatorListener) {
-        ValueAnimator animator =
-                createAnimator(splashScreenView, firstWindowSurface, mainWindowShiftLength,
-                        transactionPool, firstWindowFrame, animationDuration, iconFadeOutDuration,
-                        iconStartAlpha, brandingStartAlpha, appRevealDelay, appRevealDuration,
-                        animatorListener);
-        animator.start();
+        startAnimations(splashScreenView, firstWindowSurface, mainWindowShiftLength,
+                transactionPool, firstWindowFrame, animationDuration, iconFadeOutDuration,
+                iconStartAlpha, brandingStartAlpha, appRevealDelay, appRevealDuration,
+                animatorListener, 0f /* roundedCornerRadius */);
     }
 
     /**
@@ -87,7 +103,8 @@ public class SplashScreenExitAnimationUtils {
             SurfaceControl firstWindowSurface, int mMainWindowShiftLength,
             TransactionPool transactionPool, Rect firstWindowFrame, int animationDuration,
             int iconFadeOutDuration, float iconStartAlpha, float brandingStartAlpha,
-            int appRevealDelay, int appRevealDuration, Animator.AnimatorListener animatorListener) {
+            int appRevealDelay, int appRevealDuration, Animator.AnimatorListener animatorListener,
+            float roundedCornerRadius) {
         // reveal app
         final float transparentRatio = 0.8f;
         final int globalHeight = splashScreenView.getHeight();
@@ -124,7 +141,7 @@ public class SplashScreenExitAnimationUtils {
 
             shiftUpAnimation = new ShiftUpAnimation(0, -mMainWindowShiftLength, occludeHoleView,
                     firstWindowSurface, splashScreenView, transactionPool, firstWindowFrame,
-                    mMainWindowShiftLength);
+                    mMainWindowShiftLength, roundedCornerRadius);
         }
 
         ValueAnimator animator = ValueAnimator.ofFloat(0f, 1f);
@@ -289,8 +306,8 @@ public class SplashScreenExitAnimationUtils {
         public ShiftUpAnimation(float fromYDelta, float toYDelta, View occludeHoleView,
                                 SurfaceControl firstWindowSurface, ViewGroup splashScreenView,
                                 TransactionPool transactionPool, Rect firstWindowFrame,
-                                int mainWindowShiftLength) {
-            mFromYDelta = fromYDelta;
+                                int mainWindowShiftLength, float roundedCornerRadius) {
+            mFromYDelta = fromYDelta - roundedCornerRadius;
             mToYDelta = toYDelta;
             mOccludeHoleView = occludeHoleView;
             mApplier = new SyncRtSurfaceTransactionApplier(occludeHoleView);

libs/WindowManager/Shell/src/com/android/wm/shell/startingsurface/SplashscreenContentDrawer.java

@@ -993,10 +993,11 @@ public class SplashscreenContentDrawer {
      * Create and play the default exit animation for splash screen view.
      */
     void applyExitAnimation(SplashScreenView view, SurfaceControl leash,
-            Rect frame, Runnable finishCallback, long createTime) {
+            Rect frame, Runnable finishCallback, long createTime, float roundedCornerRadius) {
         final Runnable playAnimation = () -> {
             final SplashScreenExitAnimation animation = new SplashScreenExitAnimation(mContext,
-                    view, leash, frame, mMainWindowShiftLength, mTransactionPool, finishCallback);
+                    view, leash, frame, mMainWindowShiftLength, mTransactionPool, finishCallback,
+                    roundedCornerRadius);
             animation.startAnimations();
         };
         if (view.getIconView() == null) {

libs/WindowManager/Shell/src/com/android/wm/shell/startingsurface/StartingSurfaceDrawer.java

@@ -645,7 +645,7 @@ public class StartingSurfaceDrawer {
                             mSplashscreenContentDrawer.applyExitAnimation(record.mContentView,
                                     removalInfo.windowAnimationLeash, removalInfo.mainFrame,
                                     () -> removeWindowInner(record.mDecorView, true),
-                                    record.mCreateTime);
+                                    record.mCreateTime, removalInfo.roundedCornerRadius);
                         } else {
                             // the SplashScreenView has been copied to client, hide the view to skip
                             // default exit animation

services/core/java/com/android/server/wm/TaskOrganizerController.java

@@ -691,6 +691,8 @@ class TaskOrganizerController extends ITaskOrganizerController.Stub {
             if (mainWindow == null || mainWindow.mRemoved) {
                 removalInfo.playRevealAnimation = false;
             } else if (removalInfo.playRevealAnimation && playShiftUpAnimation) {
+                removalInfo.roundedCornerRadius =
+                        topActivity.mLetterboxUiController.getRoundedCornersRadius(mainWindow);
                 removalInfo.windowAnimationLeash = applyStartingWindowAnimation(mainWindow);
                 removalInfo.mainFrame = mainWindow.getRelativeFrame();
             }