Android popupWindow点击某个控件在其下面显示弹窗,例如淘宝的晒选

在某个控件下面显示弹窗

private void showPopupWindow(View view){
        //加载布局
        View inflate = LayoutInflater.from(getContext()).inflate(R.layout.popupwindow_credit_add_screen, null);
        //更改背景颜色
        inflate.setBackgroundColor(getContext().getResources().getColor(R.color.white));
        PopupWindow mPopupWindow = new PopupWindow(inflate);
        TextView tvAddCustomer = inflate.findViewById(R.id.tv_add_customer);
        TextView tvAdvancedScreen = inflate.findViewById(R.id.tv_advanced_screen);
        //必须设置宽和高
        mPopupWindow.setWidth(270);
        mPopupWindow.setHeight(170);
        //点击其他地方隐藏,false为无反应
        mPopupWindow.setFocusable(true);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            //对他进行便宜
            mPopupWindow.showAsDropDown(view,-135,20,Gravity.BOTTOM);
        }
        //对popupWindow进行显示
        mPopupWindow.update();
    }

View传入的是控件,要显示在某个控件下面