Flow layout without animation

gistfile1.txt

class NoFadeFlowLayout: UICollectionViewFlowLayout {

    override func initialLayoutAttributesForAppearingItem(at itemIndexPath: IndexPath) -> UICollectionViewLayoutAttributes? {
        let attrs = super.initialLayoutAttributesForAppearingItem(at: itemIndexPath)
        attrs?.alpha = 1.0
        return attrs
    }

    override func finalLayoutAttributesForDisappearingItem(at itemIndexPath: IndexPath) -> UICollectionViewLayoutAttributes? {
        let attrs = super.finalLayoutAttributesForDisappearingItem(at: itemIndexPath)
        attrs?.alpha = 1.0
        return attrs
    }
}