@Override
            public void onBitmapFrameCacheChanged(BitmapFrameCache bitmapFrameCache) {
              updateBitmapFrameCache(bitmapFrameCache);
            }
Fragment that creates a new {@link AnimatedDrawable2} and a custom bitmap animation backend. In
addition, it displays useful debug information, like cached frames.
samples/animation2/src/main/java/com/facebook/samples/animation2/bitmap/BitmapAnimationDebugFragment.java