Tableview cell subtitles not showing or the app quits - ios

Question

My tableview cell subtitles aren't showing when I use this:
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
var cell:UITableViewCell?
if tableView.tag == 1 {
guard let latestCell = tableView.dequeueReusableCell(withIdentifier: "latestCell") else {
return UITableViewCell(style: .subtitle, reuseIdentifier: "latestCell")
}
latestCell.textLabel?.text = latest[indexPath.row]
latestCell.detailTextLabel?.text = latestSub[indexPath.row]
latestCell.accessoryType = .disclosureIndicator
return latestCell
}
}
But then if I use this:
else if tableView.tag == 2 {
let olderCell = UITableViewCell(style: UITableViewCellStyle.subtitle, reuseIdentifier: "olderCell")
olderCell.textLabel?.text = older[indexPath.row]
olderCell.detailTextLabel?.text = olderSub[indexPath.row]
olderCell.accessoryType = .disclosureIndicator
return olderCell
}
else {
return cell!
}
}
The subtitles load perfectly, but after I close the app and reload the view, the app autoquits without giving a crash log or taking me to the debugging-tab.
I know that the arrays from which the data comes from are fine, and I think that I've set up everything right in the storyboard. A lot of similar questions have already been posted on the subject, but they all seem to come down to forgetting to set the cellStyle to .subtitle. Thanks in advance for any help I get!
BTW. My regular cell titles are working just like I want them to. No problem there.

Answer 1

In your first section, your guard statement is returning before you've set the cell's text and detail text. If you changed it to:
if let latestCell = tableView.dequeueReusableCell(withIdentifier: "latestCell") {
cell = latestCell
} else {
cell = UITableViewCell(style: .subtitle, reuseIdentifier: "latestCell")
}
cell.textLabel?.text = latest[indexPath.row]
cell.detailTextLabel?.text = latestSub[indexPath.row]
cell.accessoryType = .disclosureIndicator
return cell
The labels will now get set.
And your crash is caused by this:
return cell!
If cell == nil, then cell! will attempt to unwrap it. And really, what you should be doing is calling super's implementation:
return super.tableView(tableView, cellForRowAt: indexPath)
Good luck.