public override void ViewDidLoad() { base.ViewDidLoad(); View.BackgroundColor = UIColor.White; btnShowAd = UIButton.FromType(UIButtonType.RoundedRect); btnShowAd.Frame = new RectangleF(129, 99, 62, 30); btnShowAd.SetTitle("Show Ad", UIControlState.Normal); btnShowAd.TouchUpInside += (sender, e) => { if (banner == null) { banner = new IMBanner(frame: new RectangleF(0, 20, 320, 50), appId: "Insert InMobi App ID Here", adSize: IMAdSize.Banner320x50); } banner.LoadBanner(); View.Add(banner); }; View.Add(btnShowAd); }