iOS : Swift - How to add pinpoint to map on touch and get detailed address of that location?

To react to the touch on map you need to set up a tap recogniser for the mapView

in viewDidLoad:

let gestureRecognizer = UITapGestureRecognizer(                              target: self, action:#selector(handleTap))    gestureRecognizer.delegate = self    mapView.addGestureRecognizer(gestureRecognizer)

Handle the tap and get the tapped location coordinates:

func handleTap(gestureRecognizer: UITapGestureRecognizer) {        let location = gestureRecognizer.location(in: mapView)    let coordinate = mapView.convert(location, toCoordinateFrom: mapView)        // Add annotation:    let annotation = MKPointAnnotation()    annotation.coordinate = coordinate    mapView.addAnnotation(annotation)}

Now you only have to implement the MKMapView delegate functions to draw the annotations. A simple google search should get you the rest of that.

Here is a working Xcode 10.1, Swift 4.2 project with MapKit delegates to control the annotations (pin color, pin image etc.) and delegate to handle a click on the added annotation:Github Project

import UIKitimport MapKitclass ViewController: UIViewController {@IBOutlet weak var mapView: MKMapView!override func viewDidLoad() {    super.viewDidLoad()    mapView.delegate = self    let longTapGesture = UILongPressGestureRecognizer(target: self, action: #selector(longTap))    mapView.addGestureRecognizer(longTapGesture)}@objc func longTap(sender: UIGestureRecognizer){    print("long tap")    if sender.state == .began {        let locationInView = sender.location(in: mapView)        let locationOnMap = mapView.convert(locationInView, toCoordinateFrom: mapView)        addAnnotation(location: locationOnMap)    }}func addAnnotation(location: CLLocationCoordinate2D){        let annotation = MKPointAnnotation()        annotation.coordinate = location        annotation.title = "Some Title"        annotation.subtitle = "Some Subtitle"        self.mapView.addAnnotation(annotation)}}extension ViewController: MKMapViewDelegate{func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {    guard annotation is MKPointAnnotation else { print("no mkpointannotaions"); return nil }    let reuseId = "pin"    var pinView = mapView.dequeueReusableAnnotationView(withIdentifier: reuseId) as? MKPinAnnotationView    if pinView == nil {        pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseId)        pinView!.canShowCallout = true        pinView!.rightCalloutAccessoryView = UIButton(type: .infoDark)        pinView!.pinTintColor = UIColor.black    }    else {        pinView!.annotation = annotation    }    return pinView}func mapView(_ mapView: MKMapView, didSelect view: MKAnnotationView) {    print("tapped on pin ")}func mapView(_ mapView: MKMapView, annotationView view: MKAnnotationView, calloutAccessoryControlTapped control: UIControl) {    if control == view.rightCalloutAccessoryView {        if let doSomething = view.annotation?.title! {           print("do something")        }    }  }}

Swift 4:

 @IBOutlet weak var mapView: MKMapView! func handleLongPress (gestureRecognizer: UILongPressGestureRecognizer) {    if gestureRecognizer.state == UIGestureRecognizerState.began {        let touchPoint: CGPoint = gestureRecognizer.location(in: mapView)        let newCoordinate: CLLocationCoordinate2D = mapView.convert(touchPoint, toCoordinateFrom: mapView)        addAnnotationOnLocation(pointedCoordinate: newCoordinate)    }}func addAnnotationOnLocation(pointedCoordinate: CLLocationCoordinate2D {    let annotation = MKPointAnnotation()    annotation.coordinate = pointedCoordinate    annotation.title = "Loading..."    annotation.subtitle = "Loading..."    mapView.addAnnotation(annotation)}