// 隐藏标题栏        requestWindowFeature(Window.FEATURE_NO_TITLE);        // 隐藏状态栏        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,                WindowManager.LayoutParams.FLAG_FULLSCREEN);        // 锁定横屏        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);