How to Set UITableViewCellStyleSubtitle and dequeueReusableCell in Swift?

Question

I\'d like a UITableView with subtitle-style cells that use dequeueReusableCellWithIdentifier.

My original Objective-C code was

Answer 1

Keep in mind that UITableView is defined as an optional in the function, which means your initial cell declaration needs to check for the optional in the property. Also, the returned queued cell is also optional, so ensure you make an optional cast to UITableViewCell. Afterwards, we can force unwrap because we know we have a cell.

var cell:UITableViewCell? = 
tableView?.dequeueReusableCellWithIdentifier(reuseIdentifier) as? UITableViewCell
if (cell == nil)
{
   cell = UITableViewCell(style: UITableViewCellStyle.Subtitle, 
                reuseIdentifier: reuseIdentifier)
}
// At this point, we definitely have a cell -- either dequeued or newly created,
// so let's force unwrap the optional into a UITableViewCell
cell!.detailTextLabel.text = "some text"

return cell

Answer 2

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath:
 NSIndexPath) -> UITableViewCell {  
     var CellIdentifier:String = "Cell"  
     var cell:UITableViewCell? = tableView.dequeueReusableCellWithIdentifier(CellIdentifier) as? UITableViewCell  
     if cell == nil {  
        cell = UITableViewCell(style:UITableViewCellStyle(rawValue:3)!,reuseIdentifier:CellIdentifier)   
      }
    return cell!
}

Answer 3

I engage you to look at this little UITableView-Example on Github: https://github.com/YANGReal/UITableView-Swift

They do like follows:

func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath!) -> UITableViewCell!
{
   let cell = tableView .dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as UITableViewCell
   cell.textLabel.text = String(format: "%i", indexPath.row+1)
   // set any other property of your cell here
   return cell
}

Answer 4

You can use a slightly different syntax than the one from memmons to prevent the forced unwrapping:

let cell = tableView.dequeueReusableCellWithIdentifier(reuseIdentifier) as? UITableViewCell ?? UITableViewCell(style: .Subtitle, 
            reuseIdentifier: reuseIdentifier)

cell.detailTextLabel?.text = "some text"

return cell

This is using XCode 6.1 7, Swift 1.2 2.0 syntax where UITableView is no longer an optional.

Answer 5

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{

    var cell:UITableViewCell? =
        tableView.dequeueReusableCell(withIdentifier: "cell")
    if (cell != nil)
    {
        cell = UITableViewCell(style: UITableViewCellStyle.subtitle,
                               reuseIdentifier: "cell")
    }
    cell!.textLabel?.text = "ABC"
    cell!.detailTextLabel?.text = "XYZ"

    return cell!

  }

Answer 6

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let reuseIdentifier = "cell"
    var cell:UITableViewCell? = tableView.dequeueReusableCellWithIdentifier(reuseIdentifier) as UITableViewCell?
    if (cell == nil) {
        cell = UITableViewCell(style: UITableViewCellStyle.Subtitle, reuseIdentifier: reuseIdentifier)
    }
    cell!.textLabel?.text = self.items[indexPath.row]
    cell!.detailTextLabel?.text = self.items[indexPath.row]
    return cell!
}