Cell does not get deselected while scrolled back - swift

Question

I have a weird problem. While I select a cell with changing the background color of one UIView component, then I scroll down and selected cell going to be out of bounds of the view. I do select new cell -> previous one should get unselected, but it does not. Because when I back I do have 2 selected cells.
var lastSelectedAtIndexPath: IndexPath?
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
switch tableView {
case myTableView:
if let cell = myTableView.cellForRow(at: indexPath) as? MyTableViewCell {
cell.checkMarkBorder.backgroundColor = UIColor.darkGreyFts
lastSelectedFuelAtIndexPath = indexPath
}
default:
break
}
}
func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {
switch tableView {
case myTableView:
if let cell = fuelTableView.cellForRow(at: indexPath) as? MyTableViewCell {
cell.checkMarkBorder.backgroundColor = UIColor.white
}
default:
break
}
}
And iside cellForRowAt I have :
let cell = myTableView.dequeueReusableCell(withIdentifier: "myCell") as! MyTableViewCell
if let lastIndexPath = lastSelectedFuelAtIndexPath {
myTableView.deselectRow(at: lastIndexPath, animated: true)
}
cell.myImage.image = UIImage(named: fuelType)?.withRenderingMode(.alwaysTemplate)
cell.myNameLabel.text = "Test"
Any ideas what is going on?
Thanks in advance!

Answer 1

Don't make changes on cell outside cellForRowAt always change your dataSource and use dataSource in cellForRowAt then in didSelectRowAt and didDeSelectRowAt reload the row.
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = myTableView.dequeueReusableCell(withIdentifier: "myCell") as! MyTableViewCell
cell.myImage.image = UIImage(named: fuelType)?.withRenderingMode(.alwaysTemplate)
cell.myNameLabel.text = "Test"
cell.checkMarkBorder.backgroundColor = lastSelectedFuelAtIndexPath == indexPath ? UIColor.darkGreyFts : UIColor.white
return cell
}
Now in didSelectRowAt and didDeSelectRowAt update the lastSelectedFuelAtIndexPath reload the row.
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
if tableView == myTableView {
lastSelectedFuelAtIndexPath = indexPath
myTableView.reloadRows(at: [indexPath], with: .automatic)
}
}
func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {
if tableView == myTableView {
lastSelectedFuelAtIndexPath = nil
myTableView.reloadRows(at: [indexPath], with: .automatic)
}
}