Prism Xamarin Forms injectable objects

Question

I'm new to Prism and I'm looking for some guidance on the objects available during viewModel instantiation when using Prism (Prism.Forms 6.2.0 Preview 3) with Xamarin Forms.

I see that INavigationService and IEventAggregator parameters values are supplied by the framework when navigating to a view/viewmodel. See code below for an illustration.

 public ViewBViewModel(INavigationService navigationService, IEventAggregator ea)
    {
        _ea = ea;
        _navigationService = navigationService;
    }

The navigationService and ea objects (above) were populated by Prism.

Question: What other objects can be auto-populated in a viewModel instance by the framework (outside of INavigationService and IEventAggregator)? Thanks.

Answer 1

It looks like these are the implementations registered for you:

• INavigationService
• IApplicationProvider
• IModuleManager
• IModuleInitializer
• IEventAggregator
• IDependencyService
• IPageDialogService
• ILoggerFacade

See source here.

That being said, I'm only familiar with INavigationService, IEventAggregator and IPageDialogService. ILoggerFacade looks interesting.

See documentation here.