全屏显示

public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
        //设置无标题栏
 requestWindowFeature(Window.FEATURE_NO_TITLE);
 // 设置全屏Flag标识  
 getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,  
                         WindowManager.LayoutParams.FLAG_FULLSCREEN);  
setContentView(R.layout.main);