Calculate the number of presses

[tahishae]

Good afternoon. How do you calculate the number of applications on the screen and the condition (if the number of vents is vent 20, then remove the message)?

[emmalee]

If a 20-centre is to be at one point,

override func viewDidLoad() {
    super.viewDidLoad()
let tap = UITapGestureRecognizer(target: self, action: Selector("tap:"))
tap.numberOfTapsRequired = 20
self.view.addGestureRecognizer(tap)

}
func tap(sender: UITapGestureRecognizer) {

print("tap")

}

If anywhere on the screen:

var numberOfTaps = 0

override func viewDidLoad() {

super.viewDidLoad()
let tap = UITapGestureRecognizer(target: self, action: Selector("tap:"))
self.view.addGestureRecognizer(tap)

}
func tap(sender: UITapGestureRecognizer) {

self.numberOfTaps++
if(self.numberOfTaps >= 20) {
    print("tap")
    self.numberOfTaps = 0
}

}