Google admob的广告条加载后把游戏挡住了

本人是C++转的cocos2d 安卓部分还很模糊
banner广告条能正常加载,但是banner以为部分为全黑色,看不到cocos2d里的内容了

根据官方里的例子写的.
GoogleAdsSampleActivity这个DEMO里

从例子里复制过来2个文件
ToastAdListener.java
activity_banner_code_ad_listener.xml
代码如下

    protected void onCreate(Bundle savedInstanceState){
        super.onCreate(savedInstanceState);    
        //google广告
        setContentView(R.layout.activity_banner_code_ad_listener);

        mAdView = new AdView(this);
        mAdView.setAdUnitId(MY_AD_UNIT_ID);
        mAdView.setAdSize(AdSize.BANNER);
        mAdView.setAdListener(new ToastAdListener(this));
        RelativeLayout layout = (RelativeLayout) findViewById(R.id.mainLayout);
//        RelativeLayout layout = new RelativeLayout(this);
        RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
                RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
        layout.addView(mAdView, params);
        mAdView.loadAd(new AdRequest.Builder().build());
    }


```















用PopupWindow也是会挡住游戏