Polymorphic list adapter for MvvmCross Android

PolymorphicListAdapter.cs

    public class PolymorphicListAdapter : MvxAdapter
    {
        private IDictionary<Type, int> TemplateIdByType { get; set; }

        public override int ViewTypeCount
        {
            get { return TemplateIdByType.Count; }
        }

        private PolymorphicListAdapter(Context context, IMvxAndroidBindingContext bindingContext) : base(context, bindingContext)
        {
        }

        public static PolymorphicListAdapter Create(Context context, IMvxAndroidBindingContext bindingContext, IDictionary<Type, int> templateIdByType)
        {
            if (templateIdByType == null)
                throw new ArgumentNullException("templateIdByType");
            if (templateIdByType.IsEmpty())
                throw new ArgumentException("Need at least one templateID and type");
            var adapter = new PolymorphicListAdapter(context, bindingContext);
            adapter.TemplateIdByType = templateIdByType;
            return adapter;
        }

        public override int GetItemViewType(int position)
        {
            var item = GetRawItem(position);
            return TemplateIdByType.Keys.ToList().IndexOf(item.GetType());
        }

        protected override View GetBindableView(View convertView, object dataContext, int templateId)
        {
            templateId = TemplateIdByType[dataContext.GetType()];
            return base.GetBindableView(convertView, dataContext, templateId);
        }
    }

Usage in Fragment:

    public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
    {
        var view = base.OnCreateView(inflater, container, savedInstanceState);

        var list = view.FindViewById<MvxListView>(Resource.Id.AnimalList);
        list.Adapter = PolymorphicListAdapter.Create(Activity, (IMvxAndroidBindingContext) BindingContext, new Dictionary<Type, int>{
            {typeof(KittenViewModel), Resource.Layout.ListItem_Kitten},
            {typeof(PuppyViewModel), Resource.Layout.ListItem_Puppy}
        });

        return view;
    }