UIImageView pinch zoom swift

Question

I was hoping someone could help me out. I am trying to allow a user to pinch zoom on a UIImageView(with a max and min level allowed). But for some reason the it does not wor

Answer 1

The option for swift 4

class ViewController: UIViewController, UIScrollViewDelegate {

@IBOutlet weak var scrolView: UIScrollView!
@IBOutlet weak var imgPhoto: UIImageView!

  override func viewDidLoad() {
    super.viewDidLoad()
    scrolView.delegate = self
    scrolView.minimumZoomScale = 1.0
    scrolView.maximumZoomScale = 10.0
  }

  func viewForZooming(in scrollView: UIScrollView) -> UIView? {
    return imgPhoto
  }
}