protected async override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
Xamarin.Essentials.Platform.Init(this, savedInstanceState);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.activity_main);
var fab = FindViewById <FloatingActionButton>(Resource.Id.main_fab);
var recView = FindViewById <RecyclerView>(Resource.Id.main_recview);
var layoutManager = new LinearLayoutManager(this);
mainPresenter = new MainPresenter(this);
groupListNames = await mainPresenter.GetGroupsNames();
recAdapter = new MainRecViewAdapter(groupListNames, true);
recAdapter.ItemClick += OnItemClick;
recAdapter.ItemLongClick += OnItemLongClick;
recView.SetAdapter(recAdapter);
recView.SetLayoutManager(layoutManager);
DividerItemDecoration dividerItemDecoration = new DividerItemDecoration(recView.Context,
layoutManager.Orientation);
recView.AddItemDecoration(dividerItemDecoration);
fab.Click += fabClicked;
}
