Swift 3: Unrecognized selector sent to instance Xcode 8 [duplicate]

Answer 1

You should write this statement in different way. use following line

let panGestureRecognizer = UIPanGestureRecognizer(target: self, action: #selector(ViewController.handleTap(_:)))

instead of

let panGestureRecognizer = UIPanGestureRecognizer(target: self, action: Selector(("handleTap:")))

New Way

let panGestureRecognizer = UIPanGestureRecognizer(target: self, action: #selector(YourViewController.handleTap(_:)))

Answer 2

If you are using swift 3 your selector should be like this

#selector(self.handleTap(recognizer:))

Answer 3

class ViewController: UIViewController {

    let customView = UIView()

    override func viewDidLoad() {
        super.viewDidLoad()

        let panGestureRecognizer = UIPanGestureRecognizer(target: self, action: #selector(handleTap(_:)))
        customView.addGestureRecognizer(panGestureRecognizer)
    }

    func handleTap(panGesture: UIPanGestureRecognizer) {

    }
}

Don't forget to add your custom UIView to the VC.