Changing the height of cell depending on text height-CodePudding

I want to show a tableView with dynamic cell height. I found a way to change the height of my prototype cell in a tableView manually using this code. In this case the height is 400.

func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
     return CGFloat (400)
     }

In my cell the first part with the username (green and red) and the last part with the likes (yellow) has a fixed height with for example 60. The height of the part in the middle (blue) should change depending on the text. So how can I do that?

I tried to get the label height with this.

override func awakeFromNib() {
        super.awakeFromNib()
       userComment.sizeToFit()
       print(userComment.bounds.size.height)
    }

But this always shows me 18. My aim is to use the first code above and return CGFloat ( 60 60 dynamic label/userComment height)

This is how my tableView looks like.

extension ViewComments: UITableViewDataSource {
    
    func tableView (_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return table.count
    }
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "cell") as! TableViewCell
        let video: importComment
        video = table[indexPath.row]
        
        cell.userName.text = video.userName
        cell.userGroup.text = poiNavigationName.title
        cell.userComment.text = video.userComment
        cell.userTime.text = "\(video.userTime!)"
        cell.userLikes.text = "\(video.userLikes!)"
        cell.userName.text = video.userName
        cell.commentId.text = video.commentId
        cell.kommentarCount.text = "\(video.kommentarCount!)"
        
        cell.buttonAction = { [unowned self] in
            let selectedIndexPath = table[indexPath.row].commentId!
            ViewComments.commentIDNew = selectedIndexPath
        }
        return cell
    }
    /*
    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
     return CGFloat (400)
     }*/
    
}

Updated Picture after removing heightForRowAt and awakeFromNib

CodePudding user response：

func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
     return CGFloat (400)
}

instead of using a hard coded value you can use a dynamic height.

func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
     UITableView.automaticDimension
}

That's done entirely with the internal autolayout constraints of the prototype cell. You should not attempt to do this manually by returning a specific height for each cell; just let the runtime do it for you. It knows how to do this a lot better.