使用 mvvmcross + xamarin 形式的 UWP 错误

Question

我正在尝试导航到 xamarin 表单中的另一个视图 + mvvmcross

public ICommand GoCommand
   {
       get
       {
           return new MvxCommand(() => ShowViewModel<SecondViewModel>());
       }
   }

Android 工作正常，但 UWP 在 Show 方法中崩溃（"Error HRESULT E_FAIL has been returned from a call to a COM component"）：

public async void Show(MvxViewModelRequest request)
   {
       if (await this.TryShowPage(request))
       {
           return;
       }

       Mvx.Error("Skipping request for {0}", request.ViewModelType.Name);
   }

有什么想法吗？？提前致谢！

Answer 1

太棒了！！，我已经看到了我的错误。我需要添加此代码

       var start = Mvx.Resolve<IMvxAppStart>();
       start.Start();

方法结果：

   public MainPage()
    {
        this.InitializeComponent();

        var start = Mvx.Resolve<IMvxAppStart>();

        start.Start();

        MvxFormsWindowsUniversalViewPresenter presenter = Mvx.Resolve<IMvxViewPresenter>() as MvxFormsWindowsUniversalViewPresenter;

        if (presenter == null) 
        {
            return;
        }

        this.LoadApplication(presenter.XamarinFormsApp);
    }

使用 mvvmcross + xamarin 形式的 UWP 错误

Error UWP with mvvmcross + xamarin forms

mvvm

mvvmcross

xamarin

xamarin.forms

xamarin.uwp