Register a single View as the View for Multiple ViewModels - MVVMCross - mvvmcross

Question

MMVMCross
Android
Windows 8
We had a View, call it FruitView displaying a ViewModel called FruitViewModel. The FruitViewModel can display lists of a particular type of fruit.
This all worked fine.
For a couple of reasons we created AppleViewModel and PearViewModel that inherit from FruitViewModel. They do not do anything, all calls are made to the base viewmodel.
I want to register the FruitView as the View for AppleViewModel and PearViewModel when I try and navigate to them using MvxNavigatingObject.ShowViewModel.
I cannot see how to override the default linking of Views to ViewModels. I read one post that suggested overriding GetViewModelViewLookup in the Setup class but that does not seem to exist. I also looked at CustomPresenters but that did not look like the right approach.
Anyone else done this?
Thanks
Pat

Answer 1

After spotting this question How to navigate to a ViewModel that extends an abstract class? (not one of the suggesting when i was posting) I found InitializeViewLookup that can be overridden in each platform's Setup.cs. I am augmenting the current mappings rather than replacing so have called base.InitializeViewLookup first.
protected override void InitializeViewLookup()
{
base.InitializeViewLookup();
var viewModelViewLookup = new Dictionary<Type, Type>()
{
{ typeof(AppleViewModel), typeof(FruitView) },
{ typeof(PearViewModel), typeof(FruitView) }
};
var container = Mvx.Resolve<IMvxViewsContainer>();
container.AddAll(viewModelViewLookup);
}
Thanks
Pat