Swift 中的图库

Question

我在滚动视图中有 20 个图像视图，我在下一个 ViewController 在 SubScrollView 中显示选定的图像...

我想缩放特定的 imageView，我不知道获取那个 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
}

Swift 中的图库

Image Gallery in Swift

uiscrollview