 
     imageView.image = image
     backgroundColor = .blackColor()
-
-    userInteractionEnabled = true
-    multipleTouchEnabled = true
 
     scrollView.addSubview(self.imageView)
     addSubview(scrollView)

    let scrollView = UIScrollView(frame: CGRectZero)
    scrollView.setTranslatesAutoresizingMaskIntoConstraints(false)
    scrollView.multipleTouchEnabled = true
    scrollView.minimumZoomScale = 1
    scrollView.maximumZoomScale = 3

    scrollView.delegate = self
    return scrollView
  }()


  var imageConstraintTop: NSLayoutConstraint!
  var imageConstraintBottom: NSLayoutConstraint!

  // MARK: - Initialization

  public init(frame: CGRect, image: UIImage) {
