如何在取消拖刷操作时添加操作(Swift 5)

Question

在我的项目中，我使用了trailingSwipeActionsConfigurationForRowAt函数。我也会在需要的时候使用selectRow函数。如果我的单元格被选中，我使用了swipe，然后我取消了它(从左向右滑动)，我的单元格不会再次被选中。我可以在哪里修复它(再次使用selectRow )？

func tableView(_ tableView: UITableView, trailingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? {
        let deleteAction = UIContextualAction(style: .destructive, title: "") { [weak self] (contextualAction, view, boolValue) in
            guard let self = self else { return }
            self.deleteRow(at: indexPath)
        }
        deleteAction.image = UIImage(systemName: "trash")
        
        let swipeActions = UISwipeActionsConfiguration(actions: [deleteAction])
        
        return swipeActions
    }

Answer 1

您可以使用：

func tableView(_ tableView: UITableView, didEndEditingRowAt indexPath: IndexPath?) {
  //Get the cell's indexPath (be aware of the optional argument and threat it the way you want)
  let cell = tableView.cellForRow(at: indexPath!)
  //Use the cell to the changes you need
}

如果你想获得一个平滑的效果，你也可以使用动画。

Answer 2

您不会调用完成处理程序。根据API文档，需要调用完成处理程序来指示操作是否成功。

func tableView(_ tableView: UITableView, trailingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? {
            let deleteAction = UIContextualAction(style: .destructive, title: "") { _, _, complete in
                // remove object from your array..
                self.arrayName.remove(at: indexPath.row)
                //reload the table to avoid index out of bounds crash..
                self.tableView.deleteRows(at: [indexPath], with: .automatic)
                complete(true)
            }
            
            deleteAction.image = UIImage(named: "trash")
            let configuration = UISwipeActionsConfiguration(actions: [deleteAction])
            configuration.performsFirstActionWithFullSwipe = true
            return configuration
 }