Add a method for clearing all animations on a thread.

    public static int getCurrentAnimationsCount() {

        return sAnimations.get().size();

    }

    /**

     * Clear all animations on this thread, without canceling or ending them.

     * This should be used with caution.

     *

     * @hide

     */

    public static void clearAllAnimations() {

        sAnimations.get().clear();

        sPendingAnimations.get().clear();

        sDelayedAnims.get().clear();

    }

}