public override void OnCreate()
        {
            base.OnCreate();

            TodoContractClient = new TodoContractClient("http://40.118.255.235:8000",
                                                        "http://40.118.255.235/eth/v1.2");
        }
        public override bool FinishedLaunching(UIApplication app, NSDictionary options)
        {
            Current = this;

            // create a new window instance based on the screen size
            window = new UIWindow(UIScreen.MainScreen.Bounds);

            // make the window visible
            window.MakeKeyAndVisible();


            TodoContractClient = new TodoContractClient("http://40.118.255.235:8000",
                                                        "http://40.118.255.235/eth/v1.2");

            // create our nav controller
            navController = new UINavigationController();

            // create our Todo list screen
            homeViewController = new Screens.HomeScreen();

            // push the view controller onto the nav controller and show the window
            navController.PushViewController(homeViewController, false);
            window.RootViewController = navController;
            window.MakeKeyAndVisible();

            return(true);
        }