摘要： Manifest 权限要求代码实现WindowManager wm = (WindowManager) Context.getApplicationContext().getSystemService(Application.WINDOW_SERVICE); // 从上下文得到窗口管理对象 WindowManager.LayoutParams wml = new WindowManager.LayoutParams(); // 窗口参数wml.type = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT | WindowManager.L... 阅读全文