admob Interstitial on cocos2dx 2.2.3

Question

我正在用C ++编写跨平台应用程序，现在我想实现admob。我不知道怎么做，现在我试图使用JNI。但是在调用interstitial.isLoaded（）时，我的应用程序 崩溃没有错误。任何解决方案将不胜感激

编辑解决方案

在.cpp

下

#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)
JniMethodInfo t;

if (JniHelper::getStaticMethodInfo(t,
    "com.example.mygame/mygame",
    "loadAdmob",
    "()V"))
{

    t.env->CallStaticVoidMethod(t.classID, t.methodID);
    t.env->DeleteLocalRef(t.classID);
}
#endif

在Cocos2dxActivity下

protected void onCreate(Bundle savedInstanceState){
    super.onCreate(savedInstanceState); 

    // Create the interstitial.
    final String ADMOB_ID = "my-id";
    interstitial = new InterstitialAd(this);
    interstitial.setAdUnitId(ADMOB_ID);

    // Create ad request.
    AdRequest adRequest = new AdRequest.Builder().addTestDevice("device-id").build();

    // Begin loading your interstitial.
    interstitial.loadAd(adRequest);

    appActivity = this;
}

public static void loadAdmob() {
    appActivity.runOnUiThread(new Runnable()
    {
        @Override
        public void run()
        {
            if (interstitial.isLoaded()) {
                interstitial.show();
            }
        }
    });
}