UIBarButtonItem: target-action not working?

Question

I\'ve got a custom view inside of a UIBarButtonItem, set by calling -initWithCustomView. My bar button item renders fine, but when I tap it, it doe

Answer 1

Swift 3 : Below is my full implementation for button customization and event handling.

override func viewDidLoad() {
    super.viewDidLoad()

    let button = UIButton.init(type: .custom)
    button.setTitle("Tester", for: .normal)
    button.setTitleColor(.darkGray, for: .normal)
    button.layer.borderWidth = 1
    button.layer.cornerRadius = 5
    button.layer.borderColor = UIColor.darkGray.cgColor
    button.addTarget(self, action: #selector(self.handleButton), for: .touchUpInside)

    self.navigationItem.rightBarButtonItem = UIBarButtonItem(customView: button)
}

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)

    if let button = self.navigationItem.rightBarButtonItem?.customView {
        button.frame = CGRect(x:0, y:0, width:80, height:34)
    }
}

func handleButton( sender : UIButton ) {
    // It would be nice is isEnabled worked...
    sender.alpha = sender.alpha == 1.0 ? 0.5 : 1.0
}

Hope this helps