How do you set the duration for UICollectionView Animations?

Question

I have a custom flow layout which is adjusting the attributes for cells when they are being inserted and deleted from the CollectionView with the following two functions, bu

Answer 1

An update to @AshleyMills since forBaselineLayout is deprecated

This works

self.collectionView.performBatchUpdates({ () -> Void in
    let indexSet = IndexSet(0...(numberOfSections - 1))
    self.collectionView.insertSections(indexSet)
    self.collectionView.forFirstBaselineLayout.layer.speed = 0.5
}, completion: { (finished) -> Void in
    self.collectionView.forFirstBaselineLayout.layer.speed = 1.0
})