docs: public void show(Activity activity, int x, int y, int gravity){
  		if(getParent() == null){
  			FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(mBackground.getIntrinsicWidth(), mBackground.getIntrinsicHeight());
  			updateParams(x, y, gravity, params);
  
  			activity.getWindow().addContentView(this, params);
  		}
  		else
  			updateLocation(x, y, gravity);
  	}