MvvmCross在Android通知点击导航到ViewModel

我正在使用 Support.V7.NotificationCompat 显示通知 . 我想在单击此通知时导航到ViewModel . 当我尝试使用 MvxViewModelRequest 显示ViewModel时，我传递给ViewModel的导航参数不起作用，但是当我像这样使用ShowViewModel时它可以工作：

ShowViewModel<RouteModificationViewModel>(new { id = existingModification.Id });

这是ViewModel Init方法 . 当我使用 ShowViewModel 导航时，Guid具有正确的值 . 当我使用 MvxViewModelRequest 导航时，Guid始终具有值 Guid.Empty （全0） .

public void Init(Guid id)
{
    _routeModificationId = id;
}

这就是我试图从通知中显示ViewModel的方式：

public void ShowRouteModifiedNotification(RouteModificationModel routeModificationModel)
{
    var context = Application.Context;
    var builder = new NotificationCompat.Builder(context);
    builder.SetDefaults(NotificationCompat.DefaultAll);
    builder.SetCategory(NotificationCompat.CategoryStatus);
    builder.SetAutoCancel(true);
    builder.SetPriority(NotificationCompat.PriorityHigh);
    builder.SetSmallIcon(Resource.Mipmap.ic_launcher);
    builder.SetContentTitle("Route Modification");
    builder.SetContentText("Hello, World!");
    builder.SetContentIntent(GetIntent(routeModificationModel.Id));
    builder.SetVibrate(new long[] { 1000, 1000, 1000, 1000, 1000 });
    builder.SetSound(RingtoneManager.GetDefaultUri(RingtoneType.Notification));
    var notification = builder.Build();
    var notificationManager = (NotificationManager)context.GetSystemService(Context.NotificationService);
    var handler = new Handler(Looper.MainLooper);
    handler.Post(() =>
    {
       notificationManager.Notify(RouteModificationNotificationId, notification);
    });
}

private PendingIntent GetIntent(Guid guid)
{
    var request = MvxViewModelRequest<RouteModificationViewModel>.GetDefaultRequest();
    var json = Mvx.Resolve<IMvxJsonConverter>().SerializeObject(new { id = guid });
    request.PresentationValues = new Dictionary<string, string>
    {
        { "id", json }
    };
    var translator = Mvx.Resolve<IMvxAndroidViewModelRequestTranslator>();
    var intent = translator.GetIntentFor(request);
    return PendingIntent.GetActivity(Application.Context, 0, intent, 0);
}

谁能看到我错过的或做错了什么？