Наследование: UIApplicationDelegate
        // This method is invoked when the application has loaded its UI and its ready to run
        public override bool FinishedLaunching(UIApplication app, NSDictionary options)
        {
            // If you have defined a view, add it here:
            // window.AddSubview (navigationController.View);

            window.MakeKeyAndVisible ();
            MainAppDelegate = this;
            CreatePhoneGui();

            return true;
        }