public void removeOnCentralPositionChangedListener(OnCentralPositionChangedListener listener){
  mOnCentralPositionChangedListeners.remove(listener);
}

public void removeOnCentralPositionChangedListener ( OnCentralPositionChangedListener listener ) { mOnCentralPositionChangedListeners . remove ( listener ) ; }
removes a listener that would be called when the central item of the list changes .
