How to replace an image in a cell CollectionView

Question

I created the collection programmatically. Everything works perfectly. But now I need to replace a picture in a certain cell. How to identify the cell and get to the UIImage?

var imagesOfPaletes = [UIImage]()

override func viewDidLoad() {
    super.viewDidLoad()
    
    if imagesOfPaletes == [] {
        for i in 0...11 {
            let palete = UIImage(named: "\(i)-0")!
            imagesOfPaletes.append(palete)
        }
    }
}

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    
    let myCell = collectionView.dequeueReusableCell(withReuseIdentifier: "MyCell", for: indexPath as IndexPath)
    
    let img2 = imagesOfPaletes[indexPath.item]
    imageView2.image = img2
    myCell.contentView.addSubview(imageView2)
    
    return myCell
}

Answer 1

if you want to access a certain cell use "collection.cellForItem(at: inedexPath)" and then use the returned cell object to access the image.

So to access the image you can loop through cells subviews using "collectionCell.subViews" and check the type of the subView. check the following example:-

let collectionCell = UICollectionViewCell()
collectionCell.addSubview(UIImageView())
for subView in collectionCell.subviews {
    if subView is UIImageView {
            debugPrint("Ok")
        }
    debugPrint("subview is \(subView)")
}