private void LoadInterstitialAd()
{
interstitialAd = new InterstitialAd(this);
interstitialAd.AdId = GetAdId();
Log.Info(TAG, "AdId has been successfully set.");
interstitialAd.SetRewardAdListener(new RewardListener());
Log.Info(TAG, "SetRewardAdListener has been successfully set.");
interstitialAd.AdListener = new AdsListener(this);
Log.Info(TAG, "AdListener has been successfully set.");
Log.Info(TAG, "AdId has been successfully get. AdId: " + interstitialAd.AdId);
Log.Info(TAG, "AdListener has been successfully get. AdId: " + interstitialAd.AdListener);
Log.Info(TAG, "IsLoaded: " + interstitialAd.IsLoaded);
Log.Info(TAG, "IsLoading: " + interstitialAd.IsLoading);
AdParam adParam = new AdParam.Builder().Build();
interstitialAd.LoadAd(adParam);
Log.Info(TAG, "LoadAd function has been successfully set.");
}