Setting the title of a MKPointAnnotation on creation when using MapKit

So, at the moment I can't seem to figure out how the user can enter a title on the Annotation pins. In my code a pin will appear after a long press on the map, but the title shown of the pin is "Pin".

The only thing I would like to be able to do is for the user of the app to be able to create unique titles of the pins on creation.

import Foundation import UIKit import MapKit

class MapsViewController: UIViewController, CLLocationManagerDelegate {

let locationManager:CLLocationManager = CLLocationManager()

@IBOutlet weak var mapView: MKMapView!

override func viewDidLoad() {
    super.viewDidLoad()


    locationManager.delegate = self
    locationManager.requestWhenInUseAuthorization()
    locationManager.startUpdatingLocation()
}

func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
    for currentLocation in locations{
        print("\(index) : \(currentLocation)")
    }
}

@IBAction func addPin(_ sender: UILongPressGestureRecognizer) {

    let alert = UIAlertController(title: "Title", message: "Please enter location name", preferredStyle: .alert)

    //2. Add the text field. You can configure it however you need.
    alert.addTextField { (textField) in
        textField.text = "Location name"
    }
    // 3. Grab the value from the text field, and print it when the user clicks OK.
    alert.addAction(UIAlertAction(title: "OK", style: .default, handler: { [weak alert] (_) in
        let textField = alert?.textFields![0] // Force unwrapping because we know it exists.
        print("Text field: \(String(describing: textField?.text))")
        DispatchQueue.main.async { self.addPinWithTitle (sender , title : textField?.text ?? "") }
    }))
    self.present(alert, animated: true, completion: nil)}

func addPinWithTitle(_ sender: UILongPressGestureRecognizer , title : String) {
    let location = sender.location(in: self.mapView)
    let locCoordinates = self.mapView.convert(location, toCoordinateFrom: self.mapView)

    let annotation = MKPointAnnotation()

    annotation.coordinate = locCoordinates
    annotation.title = title

    self.mapView.addAnnotation(annotation)}

}

Please follow the final code

@IBAction func addPin(_ sender: UILongPressGestureRecognizer) {

let alert = UIAlertController(title: "Title", message: "Please enter location name", preferredStyle: .alert)

//2. Add the text field. You can configure it however you need.
alert.addTextField { (textField) in
    textField.placeholder = "Location name"
}

// 3. Grab the value from the text field, and print it when the user clicks OK.
alert.addAction(UIAlertAction(title: "OK", style: .default, handler: { [weak alert] (_) in
    let textField = alert?.textFields![0] // Force unwrapping because we know it exists.
    print("Text field: \(textField?.text)")
    DispatchQueue.main.async {
            self.addPinWithTitle (sender , title : textField?.text ?? "")
        }
}))
self.present(alert, animated: true, completion: nil)}

func addPinWithTitle(_ sender: UILongPressGestureRecognizer , title : String) {
let location = sender.location(in: self.mapView)
let locCoordinates = self.mapView.convert(location, toCoordinateFrom: self.mapView)

let annotation = MKPointAnnotation()

annotation.coordinate = locCoordinates
annotation.title = title

self.mapView.addAnnotation(annotation)}