presenter.swift

import Foundation
protocol PresenterView: class {
    func updateLabel()
}
class Presenter {
weak var view: PresenterView?
// Pass something that conforms to PresenterView
init(with view: PresenterView) {
    self.view = view
}
var timesTapped = 0
func buttonTapped() {
    timesTapped += 1
    if timesTapped >= 5 {
    self.view?.updateLabel()
}
}
}