WindowManager.LayoutParams wlp = new WindowManager.LayoutParams(width,
height, WindowManager.LayoutParams.TYPE_SYSTEM_ERROR,
WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
| WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH
| WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
| WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN,
PixelFormat.TRANSLUCENT);
//TYPE_SYSTEM_ERROR +FLAG_LAYOUT_IN_SCREEN 搭配可以浮在状态栏上面 并且 能够 处理 touch 和 click 事件, TYPE_SYSTEM_OVERLAY , TYPE_SYSTEM_ALERT不能够touch 和 click
WindowManager.LayoutParams wlp = new WindowManager.LayoutParams(width,
height, WindowManager.LayoutParams.TYPE_PHONE,
WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
| WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH
| WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,// 不占用焦点 防止其他应用需要获取焦点的时候没有反应
PixelFormat.TRANSLUCENT);
//这个不可以越过状态栏 可移动可点击