無法獲取單元格內相對於超級視圖的正確位置

Question

我有一個包含圖像的集合視圖。我試圖做的是從單元格獲取圖像的位置，並將它放在與收集單元格拍攝時完全相同的位置。

這是我最初的CollectionView：

這是挖掘後圖像的位置：

代碼：

func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) { 
    if indexPath.item != 0 { 
     guard let cell = collectionView.cellForItem(at: indexPath) as? CategoryCell else { return } 
     selectedImageRect = cell.image.convert(cell.image.frame, to: self.collectionView) 
     selectedImage = cell.image.image! 
    } 
} 

////// 

class CategoryAnimator: NSObject, UIViewControllerAnimatedTransitioning { 

    var selectedImage: UIImage? 
    var selectedImageRect: CGRect? 

    func transitionDuration(using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval { 
     return 12.0 
    } 

    func animateTransition(using transitionContext: UIViewControllerContextTransitioning) { 
     let fromViewController = transitionContext.viewController(forKey: UITransitionContextViewControllerKey.from)! 
     let toViewController = transitionContext.viewController(forKey: UITransitionContextViewControllerKey.to)! 
     let finalFrameForVC = transitionContext.finalFrame(for: toViewController) 
     let containerView = transitionContext.containerView 
     let bounds = UIScreen.main.bounds 
     toViewController.view.frame = finalFrameForVC.offsetBy(dx: 0, dy: -bounds.size.height) 
     containerView.addSubview(toViewController.view) 

     var passedImage = UIImageView(frame: selectedImageRect!) 
     passedImage.image = selectedImage! 
     fromViewController.view.addSubview(passedImage) 

     UIView.animate(withDuration: transitionDuration(using: transitionContext), delay: 0.0, usingSpringWithDamping: 0.5, initialSpringVelocity: 0.0, options: .curveLinear, animations: { 
      fromViewController.view.alpha = 0.5 
      toViewController.view.frame = finalFrameForVC 

     }, completion: { 
      finished in 
      transitionContext.completeTransition(true) 
      fromViewController.view.alpha = 1.0 
     }) 
    } 
} 

我在做什麼錯？

Answer 1

selectedImageRect = cell.convert(cell.image.frame, to: self.view) 

應該這樣做