Android 全屏显示

 1     @Override
 2     protected void onCreate(Bundle savedInstanceState) {
 3         super.onCreate(savedInstanceState);
 4         //去掉Activity的标题栏
 5         // 这句一定要在setContentView的前面
 6         requestWindowFeature(Window.FEATURE_NO_TITLE);
 7 
 8         setContentView(R.layout.activity_main);
 9 
10         //去掉状态栏
11         Window window = getWindow();
12         window.addFlags( WindowManager.LayoutParams.FLAG_FULLSCREEN);
13         //隐藏虚拟按键
14         //只是暂时隐藏，当用户产生交互行为(点击屏幕)时，虚拟按键还是会显示出来
15         window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
16 
17     }