Android利用WindowManager实现悬浮窗
16lz
2021-01-24
不废话,四步走:
1、首先要声明悬浮窗口权限:
2、引导用户打开悬浮窗权限:
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { if (!Settings.canDrawOverlays(this)) { showTip("请先打开悬浮窗权限"); startActivityForResult(new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:" + getPackageName())), 0); } else { //有权限了,可以用service或者直接用第三步开启悬浮窗 }}
3、初始化悬浮窗:
private void initFloatingWindow() { if (Settings.canDrawOverlays(this)) { // 获取WindowManager服务 windowManager = (WindowManager) getSystemService(WINDOW_SERVICE); //FloatView为自定义的悬浮窗控件,亦可使用Button、ImageView之类的控件 floatView = new FloatView(getApplicationContext()); // 设置LayoutParam layoutParams = new WindowManager.LayoutParams(); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { layoutParams.type = WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY; } else { layoutParams.type = WindowManager.LayoutParams.TYPE_PHONE; } // 实现悬浮窗可以移动的属性(把这个值改成其他值可以操作悬浮窗底下的内容) layoutParams.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE; layoutParams.format = PixelFormat.TRANSPARENT; layoutParams.width = WindowManager.LayoutParams.WRAP_CONTENT; layoutParams.height = WindowManager.LayoutParams.WRAP_CONTENT; layoutParams.gravity = Gravity.CENTER; layoutParams.x = 0; layoutParams.y = 0; //todo //对你的悬浮窗做一些点击或移动事件的处理 }}
layoutParams.flags的值选择参考:https://www.jianshu.com/p/c91448e1c7d1
4、显示和隐藏悬浮窗:
//显示悬浮窗(添加悬浮窗控件)windowManager.addView(floatView, layoutParams);//隐藏悬浮窗(移除悬浮窗控件)windowManager.removeView(floatView);//更新悬浮窗控件布局(对悬浮窗做修改之后调用)windowManager.updateViewLayout(floatView, layoutParams);
至于悬浮控件的移动,悬浮窗控件设置一个OnTouchListener事件:
floatView.setOnTouchListener(new View.OnTouchListener() { private int x; private int y; @Override public boolean onTouch(View view, MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN: x = (int) event.getRawX(); y = (int) event.getRawY(); break; case MotionEvent.ACTION_MOVE: int nowX = (int) event.getRawX(); int nowY = (int) event.getRawY(); int movedX = nowX - x; int movedY = nowY - y; x = nowX; y = nowY; layoutParams.x = layoutParams.x + movedX; layoutParams.y = layoutParams.y + movedY; // 更新悬浮窗控件布局 windowManager.updateViewLayout(floatView, layoutParams); break; default: break; } return false; } });
但是这样实现的却是整屏控制悬浮窗的移动,并不能很好的实现在悬浮窗上面拖动的效果,这个我还得再研究研究,也望各位大佬指点指点。
完。
更多相关文章
- popup menu案例,无说明只代码
- Error: Could not find gradle wrapper within Android(安卓)SDK
- Android权限大全
- Android中后台显示悬浮窗口的方法
- Android(安卓)Material Design控件之CardView
- Android文件目录选择器(可自行扩展)
- Android基本UI控件的介绍及使用
- Android(安卓)权限大全
- Android(安卓)锁屏(设备管理)