Manual merge of 40080 DO NOT MERGE

Properly notifies listener when an animation is cancelled.
Bug: #2428005.

core/java/android/view/View.java

@@ -8191,6 +8191,9 @@ public class View implements Drawable.Callback, KeyEvent.Callback, Accessibility
      * Cancels any animations for this view.
      */
     public void clearAnimation() {
+        if (mCurrentAnimation != null) {
+            mCurrentAnimation.cancel();
+        }
         mCurrentAnimation = null;
     }
 

core/java/android/view/animation/Animation.java

@@ -255,6 +255,28 @@ public abstract class Animation implements Cloneable {
         mOneMoreTime = true;
     }
 
+    /**
+     * Cancel the animation. Cancelling an animation invokes the animation
+     * listener, if set, to notify the end of the animation.
+     * 
+     * If you cancel an animation manually, you must call {@link #reset()}
+     * before starting the animation again.
+     * 
+     * @see #reset() 
+     * @see #start() 
+     * @see #startNow() 
+     * @hide
+     */
+    public void cancel() {
+        if (mStarted && !mEnded) {
+            if (mListener != null) mListener.onAnimationEnd(this);
+            mEnded = true;
+        }
+        // Make sure we move the animation to the end
+        mStartTime = Long.MIN_VALUE;
+        mMore = mOneMoreTime = false;
+    }
+
     /**
      * Whether or not the animation has been initialized.
      *