1 //在onCreate方法里调动
 2     private void test1(){//隐藏标题栏
 3         ActionBar  actionbar=getActionBar();
 4         if(actionbar!=null){
 5             actionbar.hide();
 6         }
 7     }
 8     private void test2(){//全屏
 9         this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
10     }