getWindow.setFlag()

//设置窗体全屏

getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,

WindowManager.LayoutParams.FLAG_FULLSCREEN)；

//设置窗体始终点亮

getWindow().setFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON,

Window.LayoutParams.FLAG_KEEP_SCREEN_ON);

//设置窗体背景模糊化

getWindow().setFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND,

WindowManager.LayoutParams.FLAG_BLUR_BEHIND);