I am trying to add a UITapGesture
to a UIButton so it will trigger a function when tapped. I am using Swift 3
and is getting some error:
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[SwiftRunner.ViewController tapBlurButton]: unrecognized selector sent to instance 0x149e07610'
This is roughly what I have:
// Swift 3
import UIKit
class ViewController {
@IBOutlet weak var qsBlurButton: UIButton!
override func viewDidLoad() {
super.viewDidLoad()
let tapGesture = UITapGestureRecognizer(target: self, action: Selector(("tapBlurButton")))
qsBlurButton.addGestureRecognizer(tapGesture)
}
func tapBlurButton(sender: UITapGestureRecognizer) {
print("Please Help!")
}
}
From your code you are using swift 3.0 so change your selector
syntax like this
let tapGesture = UITapGestureRecognizer(target: self, action: #selector(self.tapBlurButton(_:)))
and Your function like this
func tapBlurButton(_ sender: UITapGestureRecognizer) {
print("Please Help!")
}
Edit:
Not idea that you are using button with tap gesture, instead of that use inbuilt method addTarget
for button no need to create tap gesture for it like this
qsBlurButton.addTarget(self, action: #selector(self.tapBlurButton(_:)), forControlEvents: .TouchUpInside)
func tapBlurButton(_ sender: UIButton) {
print("Please Help!")
}