public override void OnCreateOptionsMenu(Xamarin.ActionbarSherlockBinding.Views.IMenu menu, Xamarin.ActionbarSherlockBinding.Views.MenuInflater inflater) { inflater.Inflate(Resource.Menu.search_options_menu, menu); var search = (SearchView)menu.FindItem(Resource.Id.search).ActionView; search.SetQueryHint("Search Favorites"); search.SetIconifiedByDefault(true); search.QueryTextChange += (sender, e) => { if (notesAdapter != null) { Console.WriteLine(search.Query); notesAdapter.Filter.InvokeFilter(search.Query); ListAdapter = notesAdapter; } }; base.OnCreateOptionsMenu(menu, inflater); }