ios - Tableview 不重新加载自定义附件类型

Question

我正在尝试通过表格 View 中项目上的自定义幻灯片来实现“完成”方法。 但是当我点击“完成”按钮时，它不会更新我的自定义电池附件类型。 (在“editActionsForRowAtIndexPath”函数中找到(或搜索“//标记为已完成”))我已经尝试了好几个小时我能想到的一切，但我只是被卡住了。请请注意，我对此很陌生，所以如果你能用易于理解的语言帮助我，那就太好了。

override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {

    let cellIdentifier = "Cell"
    let cell = tableView.dequeueReusableCellWithIdentifier(cellIdentifier, forIndexPath: indexPath) as CustomTableViewCell

    // Configure the cell...
    let bucketLists = (searchController.active) ? searchResults[indexPath.row] : bucketList[indexPath.row]

    cell.nameLabel.text = bucketLists.name
    cell.thumbnailImageView.image = UIImage(data: bucketLists.image)
    cell.locationLabel.text = bucketLists.location
    cell.typeLabel.text = bucketLists.type

    if (bucketLists.isVisited == true) {
        cell.favorIconImageView.hidden = false // Don't hide custom cell accessory if true

    } else if (bucketLists.isVisited == false) {
        cell.favorIconImageView.hidden = true
    }


    // Circular image
    cell.thumbnailImageView.layer.cornerRadius = cell.thumbnailImageView.frame.size.width / 2
    cell.thumbnailImageView.clipsToBounds = true

    return cell
}



override func tableView(tableView: UITableView, editActionsForRowAtIndexPath indexPath: NSIndexPath) -> [AnyObject]? {


    // Delete Button
    var deleteAction = UITableViewRowAction(style: UITableViewRowActionStyle.Default, title: "Delete",handler: {
        (action:UITableViewRowAction!, indexPath:NSIndexPath!) -> Void in

        // Delete the row from the data source
        if let managedObjectContext = (UIApplication.sharedApplication().delegate as AppDelegate).managedObjectContext {

            let bucketListToDelete = self.fetchResultController.objectAtIndexPath(indexPath) as BucketList
            managedObjectContext.deleteObject(bucketListToDelete)

            var e: NSError?
            if managedObjectContext.save(&e) != true {
                println("delete error: \(e!.localizedDescription)")
            }
        }

    })

    // Mark as Completed Button
    var completedAction = UITableViewRowAction(style: UITableViewRowActionStyle.Default, title: "Done",handler: {
        (action:UITableViewRowAction!, indexPath:NSIndexPath!) -> Void in

        println("Completed item \(indexPath.row)")


        let cellIdentifier = "Cell"
        let cell = tableView.dequeueReusableCellWithIdentifier(cellIdentifier, forIndexPath: indexPath) as CustomTableViewCell

        // Configure the cell...
        let bucketLists = (self.searchController.active) ? self.searchResults[indexPath.row] : self.bucketList[indexPath.row]

        cell.favorIconImageView.hidden = false // Item completed so hide the cell accessory image



    })

    deleteAction.backgroundColor = UIColor(red: 244.0/255.0, green: 67.0/255.0, blue: 54.0/255.0, alpha: 1.0) // Red
    completedAction.backgroundColor = UIColor(red: 3.0/255.0, green: 169.0/255.0, blue: 244.0/255.0, alpha: 1.0) // Blue

    return [deleteAction, completedAction]
}

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Answer 1

我认为您的问题是代码块中用于定义 var, completedAction 的这一行

let cell = tableView.dequeueReusableCellWithIdentifier(cellIdentifier, forIndexPath: indexPath) as CustomTableViewCell

这会实例化一个从未出现在您的 TableView 中的新单元格。您想获得对您在该 indexPath 中已有的单元格的引用，

让 cell = self.tableView.cellForRowAtIndexPath(indexPath) 作为 CustomTableViewCell