Hello, Prism.　App.xaml.cs

App.xaml.cs

    public partial class App : PrismApplication
    {
        public App(IPlatformInitializer initializer = null) : base(initializer) { }
        protected override void OnInitialized()
        {
            InitializeComponent();
            NavigationService.NavigateAsync("MainPage?title=Hello%20from%20Xamarin.Forms");
        }
        protected override void RegisterTypes()
        {
            Container.RegisterTypeForNavigation<MainPage>();
        }
    }