protected override void OnCreate(Bundle savedInstanceState) { base.OnCreate(savedInstanceState); SetContentView(Resource.Layout.Main); RecyclerView = FindViewById <RecyclerView>(Resource.Id.RecyclerView); progress = FindViewById <ProgressBar>(Resource.Id.progress); RecyclerView.SetLayoutManager(new LinearLayoutManager(this)); ViewModel = ViewModelProviders.Of(this).Get(Java.Lang.Class.FromType(typeof(ItemViewModel))) as ItemViewModel; invoker = new Invoker(this); invoker.AddViewModel(ViewModel, Response, Error); ViewModel.InitObserver(); }