UITableView load wrong cell height Swift - ios

Question

I'm doing with Xcode 10. I have a tableview in ViewController.
The cell has label which is set as leading, tralling, top and bottom, line is 0
In ViewDidload() I added
override func viewDidLoad() {
super.viewDidLoad()
tableview.rowheight = UITableView.automaticDimension
tableview.estimateheight = 98
tableview.reloaddata()
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "CommentCell", for: indexPath) as! CommentCell
let idcmt: String
idcmt = self.CommentIDArray[indexPath.row]
ref.child("Post_theme/\(userid!)/\(id)/comment/\(idcmt)").observe( .value, with: {(snapshot) in
let value = snapshot.value as? NSDictionary
cell.Comment.text = value!["content"] as? String
})
// I have a button in the custom cell but tableview load height wrong even I did not click the button on cell
self.ref.child("Post_theme/\(self.userid!)/\(self.id)/comment/\(idcmt)/likecomment").observeSingleEvent(of: .value, with: { (snapshot) in
if snapshot.hasChild(self.userid!){
cell.Heartcommentaction = {
cell.HeartCommentbutton.tintColor = .lightGray
self.TableCommentView.reloadData()
}
}
})
return cell
}
class CommentCell: UITableViewCell{
var Heartcommentaction : (() -> ()) = {}
#IBOutlet weak var Comment: UILabel!
#IBOutlet weak var HeartCommentbutton: UIButton!
#IBAction func HeartCommentaction(_ sender: Any) {
Heartcommentaction()
}
}
But when I click to Viewcontroller, tableview did not load the right height cell ( cell which is needed to autorize is not, cell which is not needed is resize)
Then I add this code
override func viewDidAppear(_ animated: Bool) {
tableview.reloadData()
}
the code run well just for initial few cells, but when I scroll down more (I have around over 100 cells), it's wrong height again, when I scroll up the initial cells get again wrong
I looked many solutions but not working for me
Really need help! thank you
UPDATE
this is the screenshot of wrong height cell, some timewrong, sometime right

Answer 1

Use :
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 98
}
Also remove tableview.estimateheight = 98

Answer 2

Give this a shot. My code here may not compile because I don't have your full source code. Remember, cellForRow should synchronously set all values on your cell. And you don't want to call reloadData because you will see glitches when scrolling. You want to call reloadRows. See below and see if that helps:
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "CommentCell", for: indexPath) as! CommentCell
let idcmt: String
idcmt = self.CommentIDArray[indexPath.row]
cell.Comment.text = "..."
cell.Heartcommentaction = {}
ref.child("Post_theme/\(userid!)/\(id)/comment/\(idcmt)")
.observe( .value, with: {(snapshot) in
let value = snapshot.value as? NSDictionary
if let value = value, let indexPath = tableView.indexPath(for: cell) {
cell.Comment.text = value!["content"] as? String
tableView.reloadRows(at: [indexPath], .fade)
} else {
print("nope")
}
})
self.ref.child("Post_theme/\(self.userid!)/\(self.id)/comment/\(idcmt)/likecomment")
.observeSingleEvent(of: .value, with: { (snapshot) in
if snapshot.hasChild(self.userid!){
if let indexPath = tableView.indexPath(for: cell) {
cell.Heartcommentaction = {
cell.HeartCommentbutton.tintColor = .lightGray
tableView.reloadRows(at: [indexPath], .fade)
}
} else {
print("bad indexPath")
}
} else {
print("no child")
}
})
return cell
}