DelegateTutorialSecondViewController

DelegateTutorialSecondViewController.swift

import UIKit

protocol SecondViewControllerProtocol {
    func didDoSomethingOnSecondViewController(message: String)
}

class SecondViewController: UIViewController {

    //MARK: - Variables
    var delegate: SecondViewControllerProtocol?

    //MARK: - IBActions
    @IBAction func didTapCTAButton(_ sender: Any) {
        self.navigationController?.popViewController(animated: true)
        self.delegate?.didDoSomethingOnSecondViewController(message: "Sending message back to FirstViewController")
    }
}