UICollectionViewCell content wrong size on first load

Question

I have a added a UICollectionView to my UIViewController and have made a custom cell for it.

I set the size of the cell using the siz

Answer 1

Thanks to the great tip by vin047.

In our case I found that the super-call-order issue was the problem.

But with the overall table view (or collection view). Not in the cell as such.

Works:

class UnusualCollectionView: UICollectionView {
    override func layoutSubviews() {
        super.layoutSubviews()
        contentInset = UIEdgeInsets(top: 10, left: 0, bottom: 10, right: 0)
    }

Fails very erratically, particularly on first appearance:

class UnusualCollectionView: UICollectionView {
    override func layoutSubviews() {
        contentInset = UIEdgeInsets(top: 10, left: 0, bottom: 10, right: 0)
        super.layoutSubviews()
    }

The problem caused some profoundly erratic behavior. For example, the 12th cell (no really) was always displaced a long way vertically. Always the 12th cell! Who knows?

vin047 saved the day here, bravo.