UITableViewCell not showing detailTextLabel.text - Swift

Your code looks fine. Just goto the storyboard and select the cell of your tableview -> Now goto Attributes Inspector and choose the style to Subtitle.

Follow this according to the below screenshot.

Hope it helped..

Same issue here (from what I've read, perhaps a bug in iOS 8?), this is how we worked around it:

1. Delete the prototype cell from your storyboard

2. Remove this line:

var cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as UITableViewCell

3. Replace with these lines of code:

let cellIdentifier = "Cell"
            
var cell = tableView.dequeueReusableCellWithIdentifier(cellIdentifier) as? UITableViewCell
if cell == nil {
    cell = UITableViewCell(style: UITableViewCellStyle.Value2, reuseIdentifier: cellIdentifier)
}

Update for Swift 3.1

let cellIdentifier = "Cell"
    
var cell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier)
if cell == nil {
    cell = UITableViewCell(style: UITableViewCellStyle.value2, reuseIdentifier: cellIdentifier)
}

Update for Swift 4.2 - Simplified

let cell = UITableViewCell(style: UITableViewCell.CellStyle.value2, reuseIdentifier: "cellId")

Update for Swift 5 - Simplified

let cell = UITableViewCell(style: .value2, reuseIdentifier: "cellId")