How can I prompt the user to turn on location services after user has denied their use

Question

I have an application with an explicit user interaction that makes use of the user\'s current location. If the user denies access to location services, I would still like su

Answer 1

latest swift version based on answers above.

func showSettingsAlert(_ from:UIViewController, title:String?, message:String?) {

        let alertController = UIAlertController(title: title, message: message, preferredStyle: .alert)

        let cancelAction = UIAlertAction(title: NSLocalizedString("Cancel", comment: ""), style: .cancel, handler: nil)

        let settingsAction = UIAlertAction(title: NSLocalizedString("Settings", comment: ""), style: .default) { (UIAlertAction) in

            guard let settingsUrl = URL(string: UIApplicationOpenSettingsURLString) else {
                return
            }

            if UIApplication.shared.canOpenURL(settingsUrl) {
                UIApplication.shared.open(settingsUrl, options: [:], completionHandler: nil)
            }
        }

        alertController.addAction(cancelAction)
        alertController.addAction(settingsAction)
        from.present(alertController, animated: true, completion: nil)
    }