Swift 4 - tableview 设置编辑 false 不会忽略行操作

Question

这是我的代码 -

    func rowActionDelete(indexPath: IndexPath, reminder: Reminder){

        do {
            self.managedObjectContext.delete(self.listOfSavedItems[indexPath.row] as! NSManagedObject)
            try self.managedObjectContext.save()
        } catch {
            let saveError = error as NSError
            print(saveError)
        }
        self.tableViewItems.setEditing(false, animated: true)
        self.listOfSavedItems.remove(at: indexPath.row)
        self.tableViewItems.deleteRows(at: [indexPath], with: .automatic)
    }

从 TrailingSwipeActionsConfigurationForRowAt 调用此函数。

@available(iOS 11.0, *)
func tableView(_ tableView: UITableView, trailingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? {

    self.selectedRowReminder = Reminder(withFetchedObject: self.listOfSavedReminders[indexPath.row] as! NSManagedObject)

    // Delete
    let delete = UIContextualAction(style: .destructive, title: " ") { (action, view, handler) in
        self.rowActionDelete(indexPath: indexPath, reminder: self.selectedRowReminder)
    }
    delete.backgroundColor = .red
    delete.image = UIImage(named: "Trash")

    // Share
    let share = UIContextualAction(style: .destructive, title: " ") { (action, view, handler) in
        self.rowActionShare(reminder: self.selectedRowReminder)
    }
    share.backgroundColor = .gray
    share.image = UIImage(named: "Share")

    // Edit
    let edit = UIContextualAction(style: .destructive, title: " ") { (action, view, handler) in
        self.rowActionEdit(reminder: self.selectedRowReminder)
    }
    edit.backgroundColor = .darkGray
    edit.image = UIImage(named: "Edit")

    let configuration = UISwipeActionsConfiguration(actions: [delete, edit, share])
    return configuration
}

正如你所看到的，我将编辑模式设置为 false。然而，我的行径并没有被驳回。

我缺少什么？删除操作正常。但行操作仍然存在，这会在已删除行所在的位置留下一个空白。该表不会更新以删除该行。但是，如果我单击其他任何地方，它会重新绘制表格，一切正常，直到我进行下一次删除。我尝试过 setNeedsLayout()、layoutIfNeeded() 但没有效果。因此，这要么是一个问题，要么是两个问题的结合。请不要建议 reloadData()。我知道这会解决所有这些问题，但这不是推荐的方法。

Answer 1

编辑：

我遇到了同样的问题，我发现tableView.setEditing(false, animated: true)不再需要了。您所需要做的就是将true其交给UIContextualAction处理程序，其余的将由我们处理。这是我所做的：

@available(iOS 11, *)
func tableView(_ tableView: UITableView, trailingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? {
    let deleteAction = UIContextualAction(style: .destructive, title: "Delete") { (action, view, handler) in
        self.deleteRow(at: indexPath)
        handler(true) // Will do the animation
    }

    return UISwipeActionsConfiguration(actions: [deleteAction])
}

// Delete

func deleteRow(at indexPath: IndexPath) {
    items.remove(at: indexPath.row)
    tableView.deleteRows(at: [indexPath], with: .left)
}