//
        // This method is invoked when the application has loaded and is ready to run. In this
        // method you should instantiate the window, load the UI into it and then make the window
        // visible.
        //
        // You have 17 seconds to return from this method, or iOS will terminate your application.
        //
        public override bool FinishedLaunching(UIApplication app, NSDictionary options)
        {
            // BUG:
            // Nib files require the type to have been loaded before they can do the
            // wireup successfully.
            // http://stackoverflow.com/questions/1725881/unknown-class-myclass-in-interface-builder-file-error-at-runtime
            //[FBProfilePictureView class];

            window = new UIWindow(UIScreen.MainScreen.Bounds);

            viewController = new HelloFacebookSampleViewController();
            window.RootViewController = viewController;
            window.MakeKeyAndVisible();

            return true;
        }
 public HelloFBLoginViewDelegate(HelloFacebookSampleViewController parentViewController)
 {
     this.parentViewController = parentViewController;
 }