protected override void OnCreate(Bundle savedInstanceState) { base.OnCreate(savedInstanceState); this.SetContentView(Resource.Layout.search_list_layout); SearchListView = FindViewById <ListView>(Resource.Id.listView_Search); searchView = FindViewById <SearchView>(Resource.Id.searchView1); adapter = new SearchListAdapter(this); SearchListView.Adapter = adapter; SearchListView.ItemClick += SearchList_ItemClick; SearchListView.ItemLongClick += SearchListView_ItemLongClick; searchView.QueryTextChange += SearchView_QueryTextChange; }