How to loop through all UIButtons in my Swift view?

Question

How would I loop through all UIButtons in my view in Swift? I would want to set all the titles to \"\", but my for-loop in Swift is giving an error.

Answer 1

To add some context for a common use case, suppose the buttons were in a scroll view and you wanted to highlight the tapped button and de-highlight the other buttons. In this situation, you would direct all buttons to one action method:

@objc private func buttonAction(_ button: UIButton) {
    for case let b as UIButton in view.scrollView.subviews {
        if b == button {
            b.setTitleColor(UIColor.green, for: []) // highlight
        } else {
            b.setTitleColor(UIColor.black, for: []) // de-highlight
        }
    }
}