How to create horizontally dynamic UICollectionView cells? Swift

Question

Hey I\'m trying display a set of \"tags\" in a view controller using collection view cells but I\'m having trouble finding a way to make them be able to dynamically resizable de

Answer 1

You need unambiguous constraints between your label and the cell (e.g. leading, trailing, top, and bottom constraints):

Then you can use UICollectionViewFlowLayoutAutomaticSize for the itemSize of your collectionViewLayout. Don't forget to set estimatedItemSize, too, which enables automatically resizing cells:

override func viewDidLoad() {
    super.viewDidLoad()

    let layout = collectionView?.collectionViewLayout as! UICollectionViewFlowLayout
    layout.itemSize = UICollectionViewFlowLayoutAutomaticSize
    layout.estimatedItemSize = CGSize(width: 100, height: 40)
}

That yields: