alertViewcontroller example iOS swift

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Solution:

AlertViewcontroller is used for show alertView to the user to get simple inputs like okay and cancel.

            let alertController = UIAlertController(title: "AVCam", message: message, preferredStyle: .alert)
            alertController.addAction(UIAlertAction(title: NSLocalizedString("OK", comment: "Alert OK button"), style: .cancel, handler: nil))
            alertController.addAction(UIAlertAction(title: NSLocalizedString("Settings", comment: "Alert button to open Settings"), style: .default, handler: { action in
             
                }
            }))
let cancelActionButton = UIAlertAction(title: "Cancel", style: .cancel) { action -> Void in

                }
                alertController.addAction(cancelActionButton)
            self.present(alertController, animated: true, completion: nil)

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