I have a UICollectionView child controller embedded in a container view to serve as a photo gallery. I have put a scrollview into the collection view cell and then layered on an imageview. Everything works fine. I can zoom in the cell, but when I move to the edge, the underlying collectionview scrollview takes over and I move to a new page. That's what I want, but I also want to reset the zoom scale (to 1.0) of the cell I just letf. Any suggestions as to how to do this?
zooming the cell in the collectionview cell:
import UIKit
class PlantPhotoCell: UICollectionViewCell, UIScrollViewDelegate {
@IBOutlet weak var imageView: UIImageView!
@IBOutlet weak var scrollView: UIScrollView!
override func awakeFromNib() {
self.scrollView.minimumZoomScale = 1.0
self.scrollView.maximumZoomScale = 4.0
self.scrollView.delegate = self
}
func viewForZooming(in scrollView: UIScrollView) -> UIView? {
return self.imageView
}
}
Cell definition and paging (Paging turned on in Storyboard):
override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath
) -> UICollectionViewCell {
let cell = collectionView
.dequeueReusableCell(withReuseIdentifier: reuseIdentifier, for: indexPath) as! PlantPhotoCell
let image = plantImgArray[indexPath.item]
cell.imageView.image = image
cell.imageView.layer.borderColor = UIColor.white.cgColor
cell.imageView.layer.borderWidth = 6
let title1 = UILabel(frame: CGRect(x: 0, y: cell.bounds.size.height - 20, width: cell.bounds.size.width, height:20))
let label = plantDesc[indexPath.item]
title1.text = label
title1.font = UIFont(name: "AvenirNextCondensed-Medium", size: 20)!
title1.backgroundColor = .white
title1.textAlignment = .center
cell.contentView.addSubview(title1)
return cell
}
override func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
let pageNumber = round(scrollView.contentOffset.x / scrollView.frame.size.width)
pageControl.currentPage = Int(pageNumber)
}
Thanks for suggestions.
