Fix ChangeTransform works only once on a View.

Bug 17762118

When ChangeTransform is used on a View, its intermediate values
are being set, but not cleared after the transition completes
unless it uses a GhostView. This CL clears the intermediate
values when the animation ends if no GhostView is used.

Change-Id: I2590d9c2bc36d31023b3e1af94d2bd72c9589eb5

Author: George Mount

core/java/android/transition/ChangeTransform.java

@@ -228,7 +228,8 @@ public Animator createAnimator(ViewGroup sceneRoot, TransitionValues startValues
         }
 
         // Next handle the normal matrix transform:
-        ObjectAnimator transformAnimator = createTransformAnimator(startValues, endValues);
+        ObjectAnimator transformAnimator = createTransformAnimator(startValues, endValues,
+                handleParentChange);
 
         if (handleParentChange && transformAnimator != null && mUseOverlay) {
             createGhostView(sceneRoot, startValues, endValues);
@@ -238,7 +239,7 @@ public Animator createAnimator(ViewGroup sceneRoot, TransitionValues startValues
     }
 
     private ObjectAnimator createTransformAnimator(TransitionValues startValues,
-            TransitionValues endValues) {
+            TransitionValues endValues, final boolean handleParentChange) {
         Matrix startMatrix = (Matrix) startValues.values.get(PROPNAME_MATRIX);
         Matrix endMatrix = (Matrix) endValues.values.get(PROPNAME_MATRIX);
 
@@ -277,7 +278,12 @@ public void onAnimationCancel(Animator animation) {
             @Override
             public void onAnimationEnd(Animator animation) {
                 if (!mIsCanceled) {
-                    setCurrentMatrix(finalEndMatrix);
+                    if (handleParentChange && mUseOverlay) {
+                        setCurrentMatrix(finalEndMatrix);
+                    } else {
+                        view.setTagInternal(R.id.transitionTransform, null);
+                        view.setTagInternal(R.id.parentMatrix, null);
+                    }
                 }
                 ANIMATION_MATRIX_PROPERTY.set(view, null);
                 transforms.restore(view);