PopupWindow

public class TopRightMenu extends PopupWindow {   private View mainView;   public TopRightMenu(Activity paramActivity,         View.OnClickListener paramOnClickListener, int width, int height,         int layoutId, int[] item_ids) {      super(paramActivity);      // 窗口布局      mainView = LayoutInflater.from(paramActivity).inflate(layoutId, null);      for (int i = 0; i < item_ids.length; i++) {         View item = mainView.findViewById(item_ids[i]);         item.setOnClickListener(paramOnClickListener);      }      setContentView(mainView);      // 设置宽度      setWidth(width);      // 设置高度      setHeight(height);      // 设置显示隐藏动画      setAnimationStyle(R.style.AnimTopRight);      // 设置背景透明      setBackgroundDrawable(new ColorDrawable(0));   }}