Merge "Animate right icon of app pair" into sc-v2-dev am: 2bede2dbf2

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/16371722

Change-Id: Ib04df010c9da0d8c435c1f97ac5cd113de86a73e

quickstep/src/com/android/quickstep/views/GroupedTaskView.java

@@ -258,4 +258,10 @@ public class GroupedTaskView extends TaskView {
         super.updateSnapshotRadius();
         mSnapshotView2.setFullscreenParams(mCurrentFullscreenParams);
     }
+
+    @Override
+    protected void setIconAndDimTransitionProgress(float progress, boolean invert) {
+        super.setIconAndDimTransitionProgress(progress, invert);
+        mIconView2.setAlpha(mIconView.getAlpha());
+    }
 }

quickstep/src/com/android/quickstep/views/TaskView.java

@@ -912,7 +912,7 @@ public class TaskView extends FrameLayout implements Reusable {
         return deviceProfile.overviewShowAsGrid && !isFocusedTask();
     }
 
-    private void setIconAndDimTransitionProgress(float progress, boolean invert) {
+    protected void setIconAndDimTransitionProgress(float progress, boolean invert) {
         if (invert) {
             progress = 1 - progress;
         }