全屏

 1.清单文件activity配置中加属性

<activity android:name=".MainActivity"
                  android:label="@string/app_name" android:screenOrientation="landscape">

2.activity代码中，setContentView(R.layout.main);之前设置全屏参数：

 super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);//没有标题
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
          WindowManager.LayoutParams.FLAG_FULLSCREEN);// 设置全屏
        setContentView(R.layout.main);