android中去掉窗口全屏显示的简单方法

   　　//去掉窗口
       requestWindowFeature(Window.FEATURE_NO_TITLE);(一定要放在setContentView(R.layout.main)的前面)
       //全屏显示
       getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);