private PopupWindow pop;

 //彈出氣泡PopupWindow
//                 TextView contentview=new TextView(getApplicationContext());
//                 contentview.setText(info.getPackname());

                 //自定義的佈局
                 View  contentview=View.inflate(getApplicationContext(),R.layout.popup_ruanjianmanager_item,null);

                 if(pop!=null&&pop.isShowing()){//吧舊的彈出窗體關閉掉
                     pop.dismiss();
                     pop=null;
                 }
                 pop = new PopupWindow(contentview,-2,-2);//-2 是包裹內容，-1 是填充父窗體
 

pop.setBackgroundDrawable(new ColorDrawable(android.R.color.transparent));//透明背景

//箭頭指向左邊和上邊，間隔0 int[] location=new int[2]; view.getLocationInWindow(location);// pop.showAtLocation(adapterView, Gravity.LEFT|Gravity.TOP,location[0],location[1]); pop.showAtLocation(adapterView, Gravity.LEFT|Gravity.TOP,60,location[1]);
在滑動listview中清除氣泡：

if
 
(pop!=null&&pop.isShowing()){//吧舊的彈出窗體關閉掉
pop.dismiss();
    pop=null;
}

在activity銷燬時清除氣泡：（因為氣泡是顯示在activity上的）

注意事項：popwindow 上加動畫時，必須給popwindow加上background，否則動畫不生效；