UICollectionView not obeying zIndex of UICollectionViewLayoutAttributes
Updating UICollectionViewLayoutAttributes.zIndex
doesn't work due to UIKit bug.
This code does the trick:
// In your UICollectionViewCell subclass:
override func apply(_ layoutAttributes: UICollectionViewLayoutAttributes) {
super.apply(layoutAttributes)
layer.zPosition = CGFloat(layoutAttributes.zIndex) // or any zIndex you want to set
}
Setting zIndex in UICollectionViewLayout didn't work for me
I set the zIndex inside the UICollectionViewController's method
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
customCell.layer.zPosition = 0;
}
My best guess is something between the layout and the controller sets the zIndex to something weird