UIViewController+QuickAlert.swift - A UIViewController extension to quickly show alerts

UIViewController+QuickAlert.swift

//
//  UIViewController+QuickAlert.swift
//
//  Created by AppleBetas on 2016-09-11.
//  Copyright © 2016 AppleBetas. All rights reserved.
//

import UIKit

extension UIViewController {
    func showAlert(title: String? = nil, message: String? = nil, handler: (() -> Void)? = nil) {
        let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
        alert.addAction(UIAlertAction(title: "OK", style: .cancel) { _ in
            handler?()
        })
        present(alert, animated: true, completion: nil)
    }
}