public void LoadAd() { var bannerView = new AdBannerView(); bannerView.AdLoaded += (sender, e) => { Console.WriteLine("AdLoaded!"); bannerView.RemoveFromSuperview(); }; bannerView.FailedToReceiveAd += (sender, e) => { Console.WriteLine("AdFailed: " + e.Error.LocalizedDescription); bannerView.RemoveFromSuperview(); }; UIApplication.SharedApplication.KeyWindow.RootViewController.View.AddSubview(bannerView); }