UICollectionViewController不显示自定义UICollectionViewCell的子视图

Question

I intend to make an overview of products using custom cells in a collectionview. I have set everything up, I get no errors, but somehow the contents of the cell dont' get shown.

I have

• created a subclass of UICollectionViewCell
• added all subviews in storyboard and connected them as IBOutlets to my class
• registered the custom cell using self.collectionView!.registerClass(ProductCell.self, forCellWithReuseIdentifier: reuseIdentifier)
• checked the datasource, no errors there. here's numberOfItemsInSection:

 override func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        var items: Int = 0
        if (section == 0) {
            if (currentCategory == nil) {
                items = sharedStore.categories.count
            } else {
                items = currentCategory.categories.count
            }
        } else if (section == 1) {
            if (currentCategory == nil) {
                items = sharedStore.products.count
            } else {
                items = currentCategory.items.count
            }
        }
        return items
    }

• set up the cellForItemAtIndexPath:

 override func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {

let cell = collectionView.dequeueReusableCellWithReuseIdentifier(reuseIdentifier, forIndexPath: indexPath) as! ProductCell

        cell.backgroundColor = UIColor(red: 0, green: 0, blue: 0, alpha: 0.05)
        cell.layer.cornerRadius = 5

        //initialize shit
        cell.titleLabel = UILabel()
        cell.priceLabel = UILabel()

        if(indexPath.section == 0) {
            let current: Category!

            //get model object
            if(currentCategory == nil) {
                if(sharedStore.categories.count > 0) {
                    current = sharedStore.categories[indexPath.row] as! Category
                } else {
                    current = nil
                }
            } else {
                if(currentCategory.categories.count > 0 ) {
                    current = currentCategory.categories[indexPath.row] as! Category
                } else {
                    current = nil
                }
            }

            cell.itemImage = UIImageView(image: UIImage(named: "folderImage.png"))
            cell.itemImage.hidden = false
            cell.titleLabel.text = current.title as String
            cell.priceLabel.hidden = true
        }
 return cell
 }

The cell is empty. No image, no title, and no pricelabel. I know the datasource is working properly, because when I add a product, it shows a new cell.

Any suggestions on how I can get my items in the cell?

Any help would be highly appreciated :)

Answer 1

I figured it out: For some reason, when you add subviews to a custom UICollectionViewcell in a storyboard, it doesn't automatically add them to the cell when you run it. Therefore, you'll have to do cell.addSubview(subview) for all properties of that cell, ether in the custom cell class or in the cellForItemAtIndex.