public void Show()
{
DDNASmartAds.Instance.OnInterstitialAdOpened -= this.OnInterstitialAdOpenedHandler;
DDNASmartAds.Instance.OnInterstitialAdOpened += this.OnInterstitialAdOpenedHandler;
DDNASmartAds.Instance.OnInterstitialAdFailedToOpen -= this.OnInterstitialAdFailedToOpenHandler;
DDNASmartAds.Instance.OnInterstitialAdFailedToOpen += this.OnInterstitialAdFailedToOpenHandler;
DDNASmartAds.Instance.OnInterstitialAdClosed -= this.OnInterstitialAdClosedHandler;
DDNASmartAds.Instance.OnInterstitialAdClosed += this.OnInterstitialAdClosedHandler;
DDNASmartAds.Instance.ShowInterstitialAd();
}