Swift中的图库

Question

我在scrollview中有20个imageview，我在SubScrollView中的下一个ViewController中显示所选图像......

我想缩放特定的imageView，我不知道得到那个imageview标签，这是我的代码

func viewForZoomingInScrollView(scrollView: UIScrollView) -> UIView?
{
    var i : Int = 0
    var imgView = UIImageView()
   for img in scrollView.subviews
   {
        imgView = view.viewWithTag(Tags.Tag_imgView.rawValue + i)
        imgView = img as UIImageView
        break
   }
    return imgView
}

Answer 1

func viewForZoomingInScrollView(scrollView: UIScrollView) -> UIView?
{
   var imgView : UIImageView? = view.viewWithTag(Tags.Tag_imgView.rawValue) as? UIImageView
   for img in scrollView.subviews
   {
        imgView = img as? UIImageView
        break
   }
    return imgView
}