array of button listeners swift
class ViewController: UIViewController { @IBOutlet weak var verticalStackView: UIStackView! var allButtons = [UIButton]() override func viewDidLoad() { super.viewDidLoad() for case let horizontalStackView as UIStackView in verticalStackView.arrangedSubviews { for case let button as UIButton in horizontalStackView.arrangedSubviews { allButtons.append(button) } } } }
