Some useful UIAlertController extension in swift

UIAlertControllerExtensions.swift

import Foundation

extension UIAlertController {
    static func showSimpleAlert(title: String, message: String, context: UIViewController) {
        let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
        alert.addAction(UIAlertAction(title: "Ok", style: .default, handler: nil))
        context.present(alert, animated: true, completion: nil)
    }
    static func showSimpleAlert(title: String, message: String, okButtonTitle: String, okButtonAction: (@escaping () -> ()), context: UIViewController) {
        let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
        alert.addAction(UIAlertAction(title: okButtonTitle, style: .default, handler: { action in
            okButtonAction()
        }))
        context.present(alert, animated: true, completion: nil)
    }
    static func showAlertWith2Button(title: String, message: String, firstButtonTitle: String, firstButtonAction: (@escaping () -> ()), secondButtonTitle: String, seconButtonAction: (@escaping () -> ()), context: UIViewController) {
        let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
        alert.addAction(UIAlertAction(title: firstButtonTitle, style: .default, handler: { action in
            firstButtonAction()
        }))
        alert.addAction(UIAlertAction(title: secondButtonTitle, style: .destructive, handler: { action in
            seconButtonAction()
        }))
        context.present(alert, animated: true, completion: nil)
    }
    static func showLogoutAlert(context: UIViewController) {
        let alert = UIAlertController(title: "Logout", message: "You are logged out of the app successfully.", preferredStyle: .alert)
        alert.addAction(UIAlertAction(title: "Ok", style: .default, handler: nil))
        context.present(alert, animated: true, completion: nil)
    }
    static func showInvlaidCredentialAlert(context: UIViewController) {
        let alert = UIAlertController(title: "My App", message: "Invalid credentials.", preferredStyle: .alert)
        alert.addAction(UIAlertAction(title: "Ok", style: .default, handler: nil))
        context.present(alert, animated: true, completion: nil)
    }
}