在Android上关闭应用程序后，Prism + Xamarin.Forms Project错误？

Question

I am developing an app using Prism and Xamarin Forms. I used Prism template to create the project in Visual Studio 2017 community edition.

Here is the app.cs page

protected override void OnInitialized()
{
    InitializeComponent();

    NavigationService.NavigateAsync("BasePage");
}

protected override void RegisterTypes()
{
    Container.RegisterTypeForNavigation<BasePage>();
    Container.RegisterTypeForNavigation<MainNavigationPage>();
    Container.RegisterTypeForNavigation<MilkPurchasePage>();
    Container.RegisterTypeForNavigation<TruckSheetPage>();
    Container.RegisterTypeForNavigation<LocalSalePage>();
    Container.RegisterTypeForNavigation<MembersPage>();
}

Now BasePage contains Hamburger menu and from there it will navigate to MilkPurchasePage

Now everything works when I run the project on mobile but once I close the app I get

Unfortunately , MilkApp.Droid has stopped.

I only added user interface. No background code has been added other than navigation.

I tried to debug bug I am unable to get it in visual studio. I checked all errors in Error Settings too. But still I am unable to solve it.

Why I am getting this ?

Answer 1

This is actually an issue with Xamarin.Forms. They fixed this in the past, but it looks like they may have had a regression. You can easily reproduce this by creating a standard XF application. You should submit this as a bug to Xamarin.