Modal Confirmation Example

ConfirmationViewController.swift

import UIKit

internal class ConfirmationViewController: UIViewController {            
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let tap = UITapGestureRecognizer(target: self, action: #selector(self.handleTapOffModal(_:)))
        tap.delegate = self
        view.addGestureRecognizer(tap)
        view.isUserInteractionEnabled = true
                
    }    
}

extension ConfirmationViewController {
    @IBAction func cancel_click(_ sender: Any) {
        dismiss(animated: true, completion: nil)
    }
    
    @IBAction func confirm_click(_ sender: Any) {        
        print("Perform Confirmation action")
        dismiss(animated: true, completion: nil)
    }
}

extension ConfirmationViewController: UIGestureRecognizerDelegate {
    func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldReceive touch: UITouch) -> Bool {
        return touch.view == gestureRecognizer.view
    }
    
    func handleTapOffModal(_ sender: UITapGestureRecognizer) {
        dismiss(animated: true, completion: nil)
    }
}