Android自定义弹出菜单和对话框功能实例代码-创新互联

Android 开发当中，可能会存在许多自定义布局的需求，比如自定义弹出菜单（popupWindow），以及自定义对话框（Dialog）。

话不多说，直接上图片。

先讲第一种，自定义PopUpWindow

1.popupWindow

protected void showPopWindow(View view, final int pos){
  WindowManager wm= (WindowManager) myContext.getSystemService(Context.WINDOW_SERVICE);
  int width=wm.getDefaultDisplay().getWidth();
  LayoutInflater layoutInflater=(LayoutInflater)myContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
  View popView=layoutInflater.inflate(R.layout.layout_shoucang_popupwindow,null);
  //加载弹出菜单的布局文件
  final ListView lvpop= (ListView) popView.findViewById(R.id.lvShouCangPop);
  List strData=new ArrayList<>();
  strData.add("删除");
  strData.add("分享");
  popView.measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED);
  popupWindow=new PopupWindow(popView,3*width/10, ViewGroup.LayoutParams.WRAP_CONTENT); //设置popupWindow 的大小
  lvpop.setAdapter(new AdapterShouCangDeletePop(myContext,strData));
  lvpop.setOnItemClickListener(new AdapterView.OnItemClickListener() {
   @Override
   public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
    if(position==0){
     //点击删除按钮的逻辑
//     ToastUtil.toastButtom(myContext,"点击删除按钮");
//     datas.remove(pos); //remove掉这行数据
     toActivityPos=pos;
//     notifyDataSetChanged();
     sendDeleteBoardCast(); //发送一条广播
     popupWindow.dismiss();
    }else if(position ==1){
     //点击分享的逻辑
     String title=datas.get(position).ucDesc;
     String photoUrl=datas.get(position).ucIcon;
     String contentUrl=datas.get(position).ucUrl;
     DialogShouCangShare dialogShouCangShare=new DialogShouCangShare(myContext,title,photoUrl,contentUrl); //弹出分享对话框
     dialogShouCangShare.show();
     popupWindow.dismiss();
    }
   }
  });
  int[] location=new int[2];
  view.getLocationOnScreen(location);
  popupWindow.setFocusable(true);
  popupWindow.setBackgroundDrawable(new BitmapDrawable());//最好加上这一句，因为他可以取消显示这个弹出菜单，不加的话，弹出菜单很难消失
  //下方：popupWindow.showAsDropDown(v);
  //popupWindow.showAtLocation(v, Gravity.NO_GRAVITY, location[0]+v.getWidth(), location[1]); 显示在右边
  //popupWindow显示在左边
  popupWindow.showAtLocation(view, Gravity.NO_GRAVITY
    , location[0]-popupWindow.getWidth(),location[1]); //这里的view是传进来的view，比如点击事件中的view，就把它传进来，popupwindow的位置可以自行调整
 }