• PopupWindow 弹出时背景变暗


    下面的PopupWindow  的高是相对于屏幕高设计,宽是获取的某一个控件的宽设置,位置位于某控件的上方,红色部分是设置弹出时屏幕变暗的。

     1      //设置contentView
     2         View contentView = LayoutInflater.from(this).inflate(R.layout.popwindow_submit, null);
     3         photoPopWindow = new PopupWindow(contentView, WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT, true);
     4         photoPopWindow.setContentView(contentView);
     5         //获取屏幕宽高度
     6         DisplayMetrics dm = this.getResources().getDisplayMetrics();
     7         int screenWidth = dm.widthPixels;
     8         int screenHeight = dm.heightPixels;
     9         //根据屏幕宽高度设置popwindow大小
    10         photoPopWindow.setWidth((int)(upload.getWidth()));
    11         photoPopWindow.setHeight((int)(screenHeight * 0.13));
    12 
    13         //设置各个控件的点击响应
    14         rl_takePhoto = contentView.findViewById(R.id.rl_takePhoto);
    15         rl_choicePhoto = contentView.findViewById(R.id.rl_choicePhoto);
    16         rl_takePhoto.setOnClickListener(new View.OnClickListener() {
    17             @Override
    18             public void onClick(View v) {
    19                 keep.setBackgroundColor(getResources().getColor(R.color.white));
    20                 upload.setBackgroundColor(getResources().getColor(R.color.color_success));
    21                 paste.setBackgroundColor(getResources().getColor(R.color.white));
    22                 submit();
    23                 //上传数据
    24                 photoPopWindow.dismiss();
    25             }
    26         });
    27         rl_choicePhoto.setOnClickListener(new View.OnClickListener() {
    28             @Override
    29             public void onClick(View v) {
    30                 submitPhoto();
    31                 //上传图片
    32                 photoPopWindow.dismiss();
    33             }
    34         });
    35         int[] location = new int[2];
    36         //在控件上方显示
    37         int[] location1 = new int[2];
    38         upload.getLocationOnScreen(location);
    39         //photoPopWindow.showAtLocation(upload,Gravity.NO_GRAVITY, location1[0],location1[1]-photoPopWindow.getHeight());
    40         photoPopWindow.showAtLocation(upload,Gravity.NO_GRAVITY, location1[0]+upload.getWidth(),screenHeight-photoPopWindow.getHeight()-upload.getHeight());
    41 
    42         // 设置背景颜色变暗
    43         WindowManager.LayoutParams lp = this.getWindow().getAttributes();
    44         lp.alpha = 0.7f;
    45         this.getWindow().setAttributes(lp);
    46         photoPopWindow.setOnDismissListener(new PopupWindow.OnDismissListener() {
    47 
    48             @Override
    49             public void onDismiss() {
    50                 WindowManager.LayoutParams lp = getWindow().getAttributes();
    51                 lp.alpha = 1f;
    52                 getWindow().setAttributes(lp);
    53             }
    54         });
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  • 原文地址:https://www.cnblogs.com/blog4wei/p/9391731.html
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