Alerts.swift

  static func alertMessage(errorMessage: String, controller: UIViewController, title: String) {
        let alertController = UIAlertController(title: title, message: errorMessage, preferredStyle: .alert)
        let okAction = UIAlertAction(title: "Ok", style: .default, handler: nil)
        alertController.addAction(okAction)
        controller.present(alertController, animated: true, completion: nil)
    }
    
    static func alertMessageNav(errorMessage: String, controller: UIViewController, title: String, cHandler: @escaping (Void)-> ()  ) {
        let alertController = UIAlertController(title: title, message: errorMessage, preferredStyle: .alert)
        let okAction = UIAlertAction(title: "Ok", style: .default, handler: {(action:UIAlertAction) in
            cHandler()
        })
        alertController.addAction(okAction)
        controller.present(alertController, animated: true, completion: nil)
    }