protected override void OnCreate(Bundle bundle) { base.OnCreate(bundle); SetContentView(Resource.Layout.dean_view_group); grouplistView = FindViewById <ListView>(Resource.Id.dean_group_viewList); grouplist = new List <Group>(); grouplist = DataBaseHelper.GetListOfGroup(); groupAdapter = new GroupAdapter(this, grouplist); grouplistView.Adapter = groupAdapter; grouplistView.ItemClick += GrouplistView_ItemClick; FloatingActionButton fab = FindViewById <FloatingActionButton>(Resource.Id.fab_add_group); fab.Hide(); }