Hi guys, I hope you're doing well.
Task: I'm trying to make a func that takes actions depending on how many times you tap on a view. The function takes a number of taps as a parameter.
Problem: I counter a compiler-time error, the text is as follows "Argument of '#selector' does not refer to an '@objc' method, property, or initializer"
class ViewController: UIViewController {
var label: UILabel = {
let labelIn = UILabel(frame: CGRect(x: 0, y: 40 , width: UIScreen.main.bounds.width, height: 40))
labelIn.backgroundColor = .orange
labelIn.textColor = .blue
labelIn.textAlignment = .center
labelIn.text = "Do some gesture."
return labelIn
}()
override func viewDidLoad() {
view.addSubview(label)
view.backgroundColor = .orange
tapGestureRecognizer(times: 2)
tapGestureRecognizer(times: 3)
tapGestureRecognizer(times: 4)
tapGestureRecognizer(times: 5)
}
func tapGestureRecognizer(times: Int){
let recognizer = UITapGestureRecognizer(target: self,
action: #selector(tabAction(taps: times )))
recognizer.numberOfTapsRequired = times
self.view.addGestureRecognizer(recognizer)
}
@objc func tabAction(taps: Int){
switch taps {
case 1:
label.text = "One tap"
case 2:
label.text = "Double tap"
case let x where x > 2:
print("More than two")
case let x where x > 2:
label.text = "You tapped \(x) times"
default:
print("default switch")
}
}
}
Any help is highly appreciated! Have a good one.
