Question

我希望numberOfRowsInSection返回索引路径上的注释数量，并且只返回第一个单元格中的一个帖子，这将返回一个单元格用于发布，一个用于注释忽略var中的注释数量。怎么了？

更新这是一个详细信息视图控制器：当用户点击帖子查看评论时，它会显示第一个单元格中的帖子和评论。

我遇到问题第一个单元格没问题但是注释单元格只出现一个单元格，无论变量中有多少字符串出错了什么？

  var comments = ["comments","comments","comments"]
        var posts = ["posts"]
        override func viewDidLoad() {
            super.viewDidLoad()

        // Do any additional setup after loading the view.
    }

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

 func numberOfSectionsInTableView(tableView: UITableView) -> Int {
    // #warning Potentially incomplete method implementation.
    // Return the number of sections.
    return 1
}

 func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    // #warning Incomplete method implementation.
    // Return the number of rows in the section.

    return 2
}


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


    if indexPath.row == 0 {
         let cell = tableView.dequeueReusableCellWithIdentifier("postCID", forIndexPath: indexPath) as! postCell
        cell.textLabel?.text = "fff"
    }


     let cell = tableView.dequeueReusableCellWithIdentifier("commentCID", forIndexPath: indexPath) as! commentCell
    // Configure the cell...
    cell.textLabel?.text = comments[indexPath.row]

    return cell
}

我也试过这个＆gt;没用？

       func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        // #warning Incomplete method implementation.
        // Return the number of rows in the section.
       if (section == 0) {
         return 1
       }
        return comments.count
    }

这是模拟器输出

Answer 1

如果您希望您的帖子和评论是单个部分中的单元格，那么您的numberOfRowsInSection应为posts.count + comments.count。

如果你想要两个部分（一个用于帖子，一个用于评论），你需要从numberOfSectionsInTableView返回2：并且你的tableView：numberOfRowsInSection：看起来像你的编辑

func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
       if (section == 0) {
        return posts.count
       }
       return comments.count
 }

Answer 2

根据您的上次更新判断，这是我认为您正在寻找的解决方案：

var comments = ["comments","comments","comments"]
var posts = ["posts"]

override func viewDidLoad() {
    super.viewDidLoad()
     Do any additional setup after loading the view.
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

 func numberOfSectionsInTableView(tableView: UITableView) -> Int {
    // #warning Potentially incomplete method implementation.
    // Return the number of sections.
    return 2 //One Section for the post and One Section for the comments?
}

func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
       // #warning Incomplete method implementation.
       // Return the number of rows in the section.
       if (section == 0) {
           return 1
       }
       return comments.count
}


 func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    //post's section == 0
    var cell: UITableViewCell!
    if indexPath.section == 0 {
        cell = tableView.dequeueReusableCellWithIdentifier("postCID", forIndexPath: indexPath) as! postCell
        cell.textLabel?.text = "fff"
    }
    else {
        cell = tableView.dequeueReusableCellWithIdentifier("commentCID", forIndexPath: indexPath) as! commentCell
        // Configure the cell...
        cell.textLabel?.text = comments[indexPath.row]
    }

    return cell
}

Answer 3

最后！

 class CommentVC: UIViewController {

    var comments = ["comments","comments","comments","comments","comments","comments"]
    var posts = ["posts","posts"]
    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
//    
//     func numberOfSectionsInTableView(tableView: UITableView) -> Int {
//        // #warning Potentially incomplete method implementation.
//        // Return the number of sections.
//        return 1
//    }
//    
//     func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
//        // #warning Incomplete method implementation.
//        // Return the number of rows in the section.
//       
//        if (section == 0) {
//            return posts.count
//        }
//        return comments.count
//    }

    func numberOfSectionsInTableView(tableView: UITableView) -> Int {
        // #warning Potentially incomplete method implementation.
        // Return the number of sections.
        return 2//One Section for the post and One Section for the comments?
    }

    func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        // #warning Incomplete method implementation.
        // Return the number of rows in the section.
        if (section == 0) {
            return 1
        }
            return comments.count

           }

    func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        //post's section == 0

        if indexPath.section == 0 {
            let cell = tableView.dequeueReusableCellWithIdentifier("postCID", forIndexPath: indexPath) as! postCell
            cell.textLabel?.text = "fff"
        }

            let cell = tableView.dequeueReusableCellWithIdentifier("commentCID", forIndexPath: indexPath) as! commentCell
            // Configure the cell...
            cell.textLabel?.text = comments[indexPath.row]
            return cell



    }

Swift：Tableview numberOfRowsInSection没有返回indexpath.row我问了

3 个答案: