App Startup

gistfile1.cs

        protected async override Task OnLaunchApplicationAsync(LaunchActivatedEventArgs args)
        {
            try
            {
                // Try to restore the user.
                IUserService userService = this.container.Resolve<IUserService>();
                User user = await userService.RetrieveUser();

                // If the user was restored, we can navigate to the main page.
                NavigationService.Navigate("Main", user);
            }
            catch (UserNotAuthenticatedException)
            {
                // If the user restore failed, they must sign back in.
                NavigationService.Navigate("FirstRun", null);
            }

            Window.Current.Activate();
        }