UITableViewAutomaticDimension is not working - ios

Question

I had set estimatedheight and height of tableview to UIAutomaticDimension but i am getting increased label height.
I tried changing label.preferredMaxLayoutWidth but still not working.
I had set estimatedheight and height of tableview to UIAutomaticDimension but i am getting increased label height.
I tried changing label.preferredMaxLayoutWidth but still not working.
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if let buildingArr = buildingViolationArray {
return buildingArr.count
}
return 0
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: Language.sharedInstance.isEnglish ? "CELL" : "CELL_AR", for: indexPath) as! BuildingViolationHeaderTableViewCell
if let buildingViolationsDict = buildingViolationArray?[indexPath.row] {
cell.followUpNoLbl.text = buildingViolationsDict["followupNo"] as? String
cell.violationTypeLbl.text = buildingViolationsDict[Language.sharedInstance.isEnglish ? "violationType" : "violationTypeArb"] as? String
cell.bvBtn.addTarget(self, action: #selector(BuildinVioClicked), for: .touchUpInside)
if buildingViolationsDict[kIsSelectedKey] as? Bool == true {
cell.isCellSelected = true
let buildingVioView = getZoneRegView(buildingViolationsDict)
buildingVioView.tag = 1
for removeSubViews in cell.bvStackView.subviews {
removeSubViews.removeFromSuperview()
cell.bvStackView.removeArrangedSubview(removeSubViews)
}
cell.bvStackView.addArrangedSubview(buildingVioView)
cell.expandImage.image = UIImage(named: "minus-256")
} else {
cell.isCellSelected = false
for removeSubViews in cell.bvStackView.subviews {
removeSubViews.removeFromSuperview()
cell.bvStackView.removeArrangedSubview(removeSubViews)
}
cell.expandImage.image = UIImage(named: "plus-256")
}
cell.violationTypeLbl.preferredMaxLayoutWidth = cell.violationTypeLbl.frame.size.width
}
cell.selectionStyle = .none
return cell
}
func BuildinVioClicked(sender: UIButton){
let location = sender.convert(CGPoint.zero, to: bvTableView)
let indexPath = bvTableView.indexPathForRow(at: location)!
if var buildingViolationsDict = buildingViolationArray?[indexPath.row] {
if let isSelect = buildingViolationsDict[kIsSelectedKey] as? Bool, isSelect {
(buildingViolationArray[indexPath.row])[kIsSelectedKey] = false
} else {
(buildingViolationArray[indexPath.row])[kIsSelectedKey] = true
}
bvTableView.reloadData()
}
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return UITableViewAutomaticDimension
}
func tableView(_ tableView: UITableView, estimatedHeightForRowAt indexPath: IndexPath) -> CGFloat {
return UITableViewAutomaticDimension
}

Answer 1

Beside setting the estimatedRowHeight to UITableViewAutomaticDimension (In Swift 4, UITableViewAutomaticDimension has been renamed into UITableView.automaticDimension). You ought to properly set your cell constraint.
class YourCell: UITableViewCell {
lazy var label: UILabel = {
let label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
label.font = UIFont.systemFont(ofSize: 12)
label.numberOfLines = 0 // This property will allow the label according to his content
return label
}()
func addLabelIntoView() {
contentView.addSubview(label)
let margin = contentView.layoutMarginsGuide
NSLayoutConstraint.activate([
label.leadingAnchor.constraint(equalTo: margin.leadingAnchor),
label.trailingAnchor.constraint(equalTo: margin.trailingAnchor),
label.topAnchor.constraint(equalTo: margin.topAnchor),
label.bottomAnchor.constraint(equalTo: margin.bottomAnchor) // Pins bottom of label into the bottom of the view
])
}
}