public void removeAllUpdateListeners(){
  if (mUpdateListeners == null) {
    return;
  }
  mUpdateListeners.clear();
  mUpdateListeners=null;
}

public void removeAllUpdateListeners ( ) { if ( mUpdateListeners == null ) { return ; } mUpdateListeners . clear ( ) ; mUpdateListeners = null ; }
removes all listeners from the set listening to frame updates for this animation .
