MvvmCross with two core libraries

问题

Is it possible to link two Core libraries into your app?
I would like to create one Common.Core library that has login and account view models.
I would like another one Domain.Core library that has some domain view models in it.
These could be used across a couple different projects.
In my app, I do a new Setup().Initialize().
My Setup class overrides CreateApp() ...

public class Setup : MvxPhoneSetup
{
    protected override IMvxApplication CreateApp()
    {
        CreatableTypes().EndingWith("Service").AsInterfaces().RegisterAsLazySingleton();
        return new Common.Core.App();

        // TODO: can I setup a Domain.Core library here too?
    }
}

I have tried doing this ...

CreatableTypes(Assembly.Load("Domain.Core")).EndingWith("Service").AsInterfaces().RegisterAsLazySingleton();

but I'm getting a ReflectionTypeLoadException when I try to resolve a domain model from there.
Anyone tried something like this?

Thanks!

回答1:

Yes, using multiple 'core' projects should work.

The ReflectionTypeLoadException occurring on Resolve suggests that maybe your second Assembly requires another Assembly that isn't available? Do you get the same problem with a very simple second core project? Can you get any more information about the exception? Which platform is this occurring on?

If you want to load ViewModel types from multiple assemblies, then there is a Setup method you can override - The default ViewModelLocator in MvvmCross gets its list of ViewModels from the assemblies listed in Setup - see MvxSetup.cs

(Sorry this list is in the ui project - should really be in the main core project)

For cross-platform compatibility, I don't recommend using Assembly.Load - better to use a more static method like typeof(Domain.Core.Something).Assembly

Working on 'packaged application' platforms like xamarin.android and (especially) xamarin.ios I don't recommend using Assembly.Load - this will only work on the iOS platforms if the assembly is referenced statically and has already been loaded - that's the reason plugins have a special bootstrap file on iOS. Also be aware that the name used in Assembly.Load is different on different platforms - eg in Android you must use the filename ending in .dll - see MvxAndroidSetup.cs. For other platforms like WP and winRT, then Assembly.Load may work more conventionally though - although I've personally spent hours/days/weeks swearing at this sort of code in the last year.

来源：https://stackoverflow.com/questions/16704224/mvvmcross-with-two-core-libraries

标签

installation

mvvmcross