public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
this._inflater = inflater;
View view = inflater.Inflate(Resource.Layout.ic_tab_shopping_list, null);
ViewModel = new ShoppingListViewModel(ServiceRegistrar.ShoppingService(MainActivity.SqliteConnection));
_shoppingListView = view.FindViewById <ListView>(Resource.Id.ShoppingListView);
var newItemEditText = view.FindViewById <EditText>(Resource.Id.NewItemEditText);
Button addItemButton = view.FindViewById <Button>(Resource.Id.AddButton);
_shoppingListView.Adapter = ViewModel.Items.GetAdapter(GetItemView);
addItemButton.Click += delegate
{
var title = newItemEditText.Text;
if (!string.IsNullOrEmpty(title))
{
ViewModel.Add(new Item(title));
}
newItemEditText.Text = "";
};
_shoppingListView.ItemClick += delegate(object sender, AdapterView.ItemClickEventArgs e)
{
ViewModel.Remove(this.ViewModel.Items.ElementAt(e.Position));
};
return(view);
}
// deleting from the list: https://developer.xamarin.com/guides/ios/user_interface/tables/part_4_-_editing/#Swipe_to_Delete
public override void CommitEditingStyle(UITableView tableView, UITableViewCellEditingStyle editingStyle, NSIndexPath indexPath)
{
switch (editingStyle)
{
case UITableViewCellEditingStyle.Delete:
_viewModel.Remove(_viewModel.Items.ElementAt(indexPath.Row));
tableView.DeleteRows(new NSIndexPath[] { indexPath }, UITableViewRowAnimation.Fade);
break;
case UITableViewCellEditingStyle.None:
break;
}
}
void Should_Be_Able_To_Remove_Item()
{
// Arrange
var shoppingService = new ShoppingService(_sqliteConnection);
var vm = new ShoppingListViewModel(shoppingService);
var item = new Item("some bought item");
vm.Add(item);
// Act
vm.Remove(item);
// Assert
Assert.DoesNotContain <Item>(vm.Items, x => x == item);
Assert.DoesNotContain <Item>(shoppingService.Items, x => x == item);
}
void Should_Be_Able_To_Remove_Item()
{
// Arrange
var vm = new ShoppingListViewModel(_shoppingService);
var item = new Item("some item to remove");
vm.Add(item);
// Act
vm.Remove(item);
// Assert
Assert.DoesNotContain <Item>(vm.Items, x => x == item);
Assert.DoesNotContain <Item>(_shoppingService.Items, x => x == item);
Assert.DoesNotContain <Item>(_shoppingService.BoughtItems, x => x == item);
}
public override void RowSelected(UITableView tableView, NSIndexPath indexPath)
{
ViewModel.Remove(ViewModel.Items.ElementAt(indexPath.Row));
tableView.ReloadData();
}
