@IBOutlet weak var scrollView: UIScrollView!

scrollView.contentSize = CGSize(width: 500.0, height: 30.0)
scrollView.scrollEnabled = true
scrollView.pagingEnabled = true
scrollView.showsVerticalScrollIndicator = false
scrollView.showsHorizontalScrollIndicator = false

var y = CGFloat(0.0)
  for _ in 0...20 {
    let label = UILabel(frame: CGRect(x: y, y: 0, width: 150.0, height: 30.0))
    label.text = "Lab"
    scrollView.addSubview(label)
    y += 160
  }
}