Android判断当前屏幕是全屏还是非全屏

@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
setContentView(R.layout.newslists);
newsListLayout = findViewById(R.id.newslistlayout);
newsListLayout.setBackgroundColor(Color.MAGENTA);

newsNameList = (ListView) findViewById(R.id.newsnamelist);
model = new Model(0, 6);
nameListAdapter = new NewsNameListAdapter(this, model);
newsNameList.setAdapter(nameListAdapter);

showPage = (TextView) findViewById(R.id.newslistshowpage);
updatePage(model.getIndex());
}

public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);      
       
        int v = this.getWindow().getAttributes().flags;
        // 全屏 66816 - 非全屏 65792
        if(v != 66816){//非全屏
         this.getWindow().setFlags(
                    WindowManager.LayoutParams.FLAG_FULLSCREEN,
                    WindowManager.LayoutParams.FLAG_FULLSCREEN);
        }else{//取消全屏
         this.getWindow().clearFlags(
                    WindowManager.LayoutParams.FLAG_FULLSCREEN);
        }

    }