UITableViewCell accessory view. Using an image for the accessory view.

example.swift

func completeRowAtIndexPath(indexPath: NSIndexPath) {
    print("Completing row: \(indexPath.row)")
    let cell = tableView.cellForRowAtIndexPath(indexPath)
    let todo = array[indexPath.row]
    todo.completed = !todo.completed
    if todo.completed {
        // cell?.accessoryType = .Checkmark
        let ribbon = UIImage(named: "Ribbon")
        cell?.accessoryView = UIImageView(image: ribbon)
    } else {
        cell?.accessoryType = .None
    }
}