Detect UILabel text change in swift

Question

Is there a way to get notified when there is a change in a UILabel\'s text or would I be better off using a UITextField with userInteractionE

Answer 1

You can do this simply with a subclass of UILabel:

class Label : UILabel {
    override var text: String? {
        didSet {
            print("Text changed from \(oldValue) to \(text)")
        }
    }
}

oldValue is a special value provided by Swift. See Property Observers