Android的悬浮窗

发表于 | 评论数：
本文字数： 1.9k | 阅读时长 ≈ 2 分钟

适配8.0

1
2
3
4
5
6
7
8
9
10
11
12
13
 //LayoutParams.type设为  
WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY
//非8.0
LayoutParams.TYPE_SYSTEM_ERROR
 //增加运行时权限
   if (!Settings.canDrawOverlays(this)) {
                Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION);
                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                startActivityForResult(intent, 1);
            } else {
                //TODO do something you need
            }
 ;

用法

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
   private Button mFloatingButton;
   private WindowManager.LayoutParams mLayoutParams;
   private WindowManager mWindowManager;
 
 ....
 ....
 
 mCreateWindowButton = (Button) findViewById(R.id.button1);
 
 mWindowManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
            mFloatingButton = new Button(this);
            mLayoutParams = new WindowManager.LayoutParams(
                    LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 0, 0,
                    PixelFormat.TRANSPARENT);
            mLayoutParams.flags = LayoutParams.FLAG_NOT_TOUCH_MODAL
                    | LayoutParams.FLAG_NOT_FOCUSABLE
                    | LayoutParams.FLAG_SHOW_WHEN_LOCKED;
            mLayoutParams.type = LayoutParams.TYPE_SYSTEM_ERROR;
            mLayoutParams.gravity = Gravity.LEFT | Gravity.TOP;
            mLayoutParams.x = 100;
            mLayoutParams.y = 300;
            mFloatingButton.setOnTouchListener(this);
            mWindowManager.addView(mFloatingButton, mLayoutParams);
 
 ......
 ......
     mWindowManager..updateViewLayout(mlayout, wmParams);
.......
......
 
 @Override
    protected void onDestroy() {
        try {
            mWindowManager.removeView(mFloatingButton);
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        }
        super.onDestroy();
    }