PopupWindow弹出框（自定义弹出框）自定义位置

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调用：

         popupwindow_right = buildPopupWindow(v,
                  R.layout.friend_circle_notify_popup);     //加载自定义的布局

           popupwindow_right.findViewById(R.id.friend).setOnClickListener(this);    按钮监听

定义弹出框位置和大小（无暗色背景）

布局设定，自适应自己的大小

public View buildPopupWindow(View v, int resource) {
       //window = new PopupWindow(ac);
       window = new PopupWindow(v, LayoutParams.FILL_PARENT,LayoutParams.FILL_PARENT, true);
       DisplayMetrics outMetrics = new DisplayMetrics();

       this.getWindowManager().getDefaultDisplay()
               .getMetrics(outMetrics);
       window.setWidth(WindowManager.LayoutParams.MATCH_PARENT);
       window.setHeight(WindowManager.LayoutParams.MATCH_PARENT);
       View view = this.getLayoutInflater().inflate(resource, null);
       window.setContentView(view);
       window.setFocusable(true);
       // 实例化一个ColorDrawable颜色为半透明
       ColorDrawable dw = new ColorDrawable(0xb0000000);
       // 设置SelectPicPopupWindow弹出窗体的背景
       window.setBackgroundDrawable(dw);

//window.showAsDropDown(v);

//弹出框位置

window.showAtLocation(v, Gravity.TOP|Gravity.RIGHT, 10, 150);

//监听如点击别处解散弹出框

       view.setOnTouchListener(new OnTouchListener() {

           public boolean onTouch(View view, MotionEvent event) {

               int height = view.findViewById(R.id.popo_layout).getTop();
               int y=(int) event.getY();
               if(event.getAction()==MotionEvent.ACTION_UP){
                   if(y>height){
                       window.dismiss();
                   }
               }
               return true;
           }
       });

       return view;

}

有暗色背景的布局

布局A要填充半透明背景

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