问间隙广告可能存在的问题

EN

    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    mView = inflater.inflate(R.layout.fragment_home, container, false);


    mInterstitialAd = new InterstitialAd(getContext());
    mInterstitialAd.setAdUnitId(getString(R.string.ad_interstitial_main));
    mAdListener = new CustomAdListener();
    mInterstitialAd.setAdListener(mAdListener);
    requestNewInterstitial();

    mPreferences = getContext().getSharedPreferences(PREFS_INTER_AD_NAME, Context.MODE_PRIVATE);

    return mView;
}

   private void requestNewInterstitial() {
    AdRequest adRequest = new AdRequest.Builder().build();

    mInterstitialAd.loadAd(adRequest);
}

   @Override
public void onClick(View v) {
    SharedPreferences.Editor editor = mPreferences.edit();
    int openCount = mPreferences.getInt(PREFS_INTER_AD_COUNT, 0);
    openCount++;
    editor.putInt(PREFS_INTER_AD_COUNT, openCount);
    editor.apply();

    int tag = (v.getId() == R.id.calculator_cardview) ? 0 : Integer.parseInt(v.getTag().toString());

    if ((openCount % 20) == 0 ) {
        mAdListener.updateTagAndId(tag, v.getId());
        if (mInterstitialAd.isLoaded()) {
            mInterstitialAd.show();
        }
    } else {
        loadClickedActivity(tag, v.getId());
    }
}

 private class CustomAdListener extends AdListener {
    int viewTag;
    int viewId;

    void updateTagAndId(int viewTag, int viewId) {
        this.viewId = viewId;
        this.viewTag = viewTag;
    }

    @Override
    public void onAdClosed() {
        loadClickedActivity(viewTag, viewId);
        requestNewInterstitial();
    }
}