如何组织表格视图单元格

Question

我在一个表格视图中有两种不同类型的表格视图单元格。第一个单元格将原始 cmets 打印到帖子中，第二个单元格将 cmets 打印到另一个评论。目前，tableview 不按特定顺序打印出所有正确的单元格。但是，我想按特定顺序打印单元格。我希望包含 cmets 到另一个评论的单元格出现在它被评论的评论下方。

  func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        // Configure the cell...

        let cell = tableView.dequeueReusableCell(withIdentifier: "Main", for: indexPath) as! PostTableViewCell

        //Configure the cell

        cell.PostView.layer.cornerRadius = 5
        cell.PostView.layer.masksToBounds = false
        cell.PostView.layer.shadowColor = UIColor.black.withAlphaComponent(0.4).cgColor
        cell.PostView.layer.shadowOffset = CGSize(width: 0, height: 0)
        cell.PostView.layer.shadowOpacity = 0.9

        let post = Comments[indexPath.row] as! [String: AnyObject]
        let commentname = post["author"] as? String
        sendAuthor = post["author"] as? String
        cell.CommentersName.setTitle(commentname, for: .normal)

        if let seconds = post["pub_time"] as? Double {
            let timeStampDate = NSDate(timeIntervalSince1970: seconds/1000)
            let dateFormatter = DateFormatter()
            dateFormatter.dateFormat = "MMM d, yyyy"
            let formating = timeStampDate as Date


            cell.CommentTime.text = dateFormatter.string(from: formating)


        }

        cell.comment.text = post["content"] as? String


         textViewDidChange(cell.comment)

        cell.comment.frame.size.width = 344
        cell.comment.sizeToFit()
        cell.comment.clipsToBounds = true

        cell.REply.frame.origin.y = cell.comment.frame.maxY + 10
        cell.report.frame.origin.y = cell.comment.frame.maxY + 10
        cell.Likes.frame.origin.y = cell.comment.frame.maxY + 10
        cell.LikesNumber.frame.origin.y = cell.comment.frame.maxY + 10
        cell.PostView.frame.size.height =  cell.comment.frame.maxY + 50
        TableView.rowHeight = cell.PostView.frame.size.height + 20

        cell.CommentersName.sizeToFit()

        cell.pole.frame.origin.x = cell.CommentersName.frame.maxX + 5
        cell.CommentTime.frame.origin.x = cell.pole.frame.maxX + 5

        let numLikes = post["num_likes"] as?  NSNumber
        cell.LikesNumber.text = String(describing: numLikes!)



        replyId = post["id"] as? String

        let replyTo = post["reply_to"] as? String
        let postID = post["post_id"] as? String



        if replyTo == postID {

        } else {
            let cell = tableView.dequeueReusableCell(withIdentifier: "Reply", for: indexPath) as! RepliesTableViewCell



            cell.ReplyCustomCell.layer.cornerRadius = 5
            cell.ReplyCustomCell.layer.masksToBounds = false
            cell.ReplyCustomCell.layer.shadowColor = UIColor.black.withAlphaComponent(0.4).cgColor
            cell.ReplyCustomCell.layer.shadowOffset = CGSize(width: 0, height: 0)
            cell.ReplyCustomCell.layer.shadowOpacity = 0.9

            let post = Comments[indexPath.row] as! [String: AnyObject]

            cell.ReplyText.text = post["content"] as? String
            let commentname = post["author"] as? String
            cell.author.setTitle(commentname, for: .normal)

            if let seconds = post["pub_time"] as? Double {
                let timeStampDate = NSDate(timeIntervalSince1970: seconds/1000)
                let dateFormatter = DateFormatter()
                dateFormatter.dateFormat = "MMM d, yyyy"
                let formating = timeStampDate as Date


                cell.time.text = dateFormatter.string(from: formating)


            }

            let numLikes = post["num_likes"] as?  NSNumber
            cell.num_likes.text = String(describing: numLikes!)


            textViewDidChange(cell.ReplyText)

            cell.ReplyText.frame.size.width = 232
            cell.ReplyText.sizeToFit()
            cell.ReplyText.clipsToBounds = true

            cell.author.sizeToFit()

            cell.pole.frame.origin.x = cell.author.frame.maxX + 5
            cell.time.frame.origin.x = cell.pole.frame.maxX + 5

            cell.Likes.frame.origin.y = cell.ReplyText.frame.maxY + 10
            cell.num_likes.frame.origin.y = cell.ReplyText.frame.maxY + 10
            cell.reportButton.frame.origin.y = cell.ReplyText.frame.maxY + 10
            cell.replyButton.frame.origin.y = cell.ReplyText.frame.maxY + 10
            cell.ReplyCustomCell.frame.size.height =  cell.ReplyText.frame.maxY + 50

             TableView.rowHeight = cell.ReplyCustomCell.frame.size.height + 20

            return cell
        }

        cell.checkfornightmode()

        return cell

    }

相互关联的 cmets 具有相同的“id”，我将如何组织单元格，以便主评论的 cmets 将列在原始评论下。谢谢

Answer 1

您可以创建一个 Comment 自定义对象类，该类将包含一组子 cmets 和主要评论，以正确安排或管理您的数据结构。之后，您可以在表格视图单元格中正确使用它。 好的，例如，您可以拥有以下数据结构。

创建一个评论类：

class Comment {
comment_id
content
post_id
reply_to
}

现在为您的表格视图再创建一个类：

class CommentTableDataModel {
var mainComment: Comment // Of type Comment class
var replies: [Comment] // Array of type Comment class for sub comments
}

因此，现在只需遍历您的 firebase Comments 数组，并准备一个类型为“CommentTableDataModel”对象的数组列表作为表的数据源。所以最后你将拥有一个类型为“CommentTableDataModel”的对象数组，每个“CommentTableDataModel”类型的对象都包含主要的评论信息以及回复信息列表，这样你就可以管理你的数据了。