public override bool OnCreateOptionsMenu(IMenu menu) { MenuInflater.Inflate(Resource.Menu.menu_main, menu); SearchManager searchManager = GetSystemService(SearchService) as SearchManager; SearchView searchView = menu.FindItem(Resource.Id.nav_search).ActionView as SearchView; searchView.SetSearchableInfo(searchManager.GetSearchableInfo(ComponentName)); searchView.SetOnQueryTextListener(this); return(true); }