UICollectionViewController can't reach cell - ios

Question

I tried to change the text of my label inside an UICollectionViewCell. The ViewCell class is linked to the cell, the outlets are set and in the viewController its registered by
// Register cell classes
self.collectionView!.register(ImageCollectionViewCell.self, forCellWithReuseIdentifier: reuseIdentifier)
and in cellForItemAt...
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: reuseIdentifier, for: indexPath) as! ImageCollectionViewCell
but I can't access the label. Same problem with an imageView. If I tried to set the text with:
cell.hund.text = "bla"
the label "hund" is known but it throws that the label is nil.
Thanks Tom
ImageCollectionVC
import UIKit
private let reuseIdentifier = "cell"
class ImageCollectionVC: UICollectionViewController {
var listOfImages = [Int: KKImage]()
override func viewDidLoad() {
super.viewDidLoad()
// Register cell classes
self.collectionView!.register(ImageCollectionViewCell.self, forCellWithReuseIdentifier: reuseIdentifier)
listOfImages = xmlParseImageSource()
}
override func numberOfSections(in collectionView: UICollectionView) -> Int {
return 1
}
override func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return listOfImages.count
}
override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: reuseIdentifier, for: indexPath) as! ImageCollectionViewCell
let imgUrl = listOfImages[indexPath.row]?.imagePreviewUrl
do {
let bindData = try Data(contentsOf: imgUrl!)
let img = UIImage(data: bindData)
cell.hund.text = "bla"
//cell.img.image = img
//cell.img.image = UIImage(data: bindData)
} catch {
print(error.localizedDescription)
}
cell.backgroundColor = UIColor.blue
return cell
}
}
ImageCollectionViewCell
import UIKit
class ImageCollectionViewCell: UICollectionViewCell {
#IBOutlet weak var img: UIImageView!
#IBOutlet weak var hund: UILabel!
}

Answer 1

Thomas in awake from nib just initialize your UIImageView and UILabel and add them to the cell, it should work :)
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code, you obviously need to set the frames/constraints as per your requirement
img = UIImageView(frame: CGRect(x: 0, y: 0, width: 44, height: 44))
hund = UILabel(frame: CGRect(x: 50, y: 0, width: 300, height: 40))
self.addSubview(img)
self.addSubview(hund)
}
In case you are using an xib don't register the class instead use the nib registration which should be:
self.collectionView.register(UINib.init(nibName: "ImageCollectionViewCell", bundle: nil), forCellWithReuseIdentifier: reuseIdentifier )