目标 C - UICollectionViewListCell 添加滑动删除

Question

尝试为 UICollectionViewListCell 实现“滑动以删除” API。

我正在写 Objective-C 编译器没有自动完成代码。 有什么原因吗？ 示例代码？

Swift 示例：

  let listConfig = UICollectionLayoutListConfiguration(appearance: .insetGrouped)

listConfig.trailingSwipeActionsConfigurationProvider = { [weak self] indexPath in 
  guard let self = self else { return nil }
    
  let action = UIContextualAction(style: .normal, title: "Done!", handler: actionHandler)
  return UISwipeActionsConfiguration(actions: [action])

}

目标 C的任何代码示例？

试图达到以下结果：

Answer 1

UICollectionLayoutListConfiguration * listConfiguration = [[UICollectionLayoutListConfiguration alloc]initWithAppearance:UICollectionLayoutListAppearanceInsetGrouped];
    [listConfiguration setTrailingSwipeActionsConfigurationProvider:^UISwipeActionsConfiguration* (NSIndexPath *indexPath) {
        
        UIContextualAction *action = [UIContextualAction contextualActionWithStyle:UIContextualActionStyleNormal title:[NSLocalizedString(@"Delete", nil)capitalizedString] handler:^(UIContextualAction * _Nonnull action, __kindof UIView * _Nonnull sourceView, void (^ _Nonnull completionHandler)(BOOL)) {

        }];
        
        return [UISwipeActionsConfiguration configurationWithActions:@[action]];
    }];