Overriding delegate property of UIScrollView in Swift (like UICollectionView does)

Question

UIScrollView has a delegate property which conforms to UIScrollViewDelegate

protocol UIScrollViewDelegate : NSObjectProtocol {
    //...
}
class UIScrollView : U         


        

Answer 1

My favoured method personally is not to subclass scrollviews directly but to make a UIView subclass containing and acting as delegate for a separate scrollview, then forward that scrollview's delegate messages on to the UIView subclass's own delegate where necessary. This also allows for the adding of custom controls outside of the area defined by the scroll view. It may seem a little inelegant compared to a direct subclass, but it does at least avoid unpleasant hacks.