Convert coordinates to City name?

Question

How to get an address from coordinates using MapKit?

I have this code when long press on the map it gets the coordinates:

func didLongPressMap(sender: UILongPressGestureRecognizer) {

    if sender.state == UIGestureRecognizerState.Began {
        let touchPoint = sender.locationInView(self.mapView)
        let touchCoordinate = self.mapView.convertPoint(touchPoint, toCoordinateFromView: self.mapView)
        var annotation = MKPointAnnotation()
        annotation.coordinate = touchCoordinate
        annotation.title = "Your position"
        self.mapView.addAnnotation(annotation) //drops the pin
        println("lat:  \(touchCoordinate.latitude)")
        var num = (touchCoordinate.latitude as NSNumber).floatValue
        var formatter = NSNumberFormatter()
        formatter.maximumFractionDigits = 4
        formatter.minimumFractionDigits = 4
        var str = formatter.stringFromNumber(num)
        println("long: \(touchCoordinate.longitude)")
        var num1 = (touchCoordinate.longitude as NSNumber).floatValue
        var formatter1 = NSNumberFormatter()
        formatter1.maximumFractionDigits = 4
        formatter1.minimumFractionDigits = 4
        var str1 = formatter1.stringFromNumber(num1)
        self.adressLoLa.text = "\(num),\(num1)"
                }
}

and I want to print in annotation.title the complete address (street, city, zip, country).

Answer 1

Swift 4.2 Keep it as simple as possible, look at the Apple doc and modify it as you need:

func retreiveCityName(lattitude: Double, longitude: Double, completionHandler: @escaping (String?) -> Void)
{
    let geocoder = CLGeocoder()
    geocoder.reverseGeocodeLocation(CLLocation(latitude: latitude, longitude: longitude), completionHandler:
    {
        placeMarks, error in

        completionHandler(placeMarks?.first?.locality)
     })
}

Answer 2

Update Swift 4

addressDictionary was deprecated in iOS 11.0

let geoCoder = CLGeocoder()
let location = CLLocation(latitude: 37.769193, longitude: -122.426512)
geoCoder.reverseGeocodeLocation(location, completionHandler: { (placemarks, error) -> Void in

// Place details
var placeMark: CLPlacemark!
placeMark = placemarks?[0]

// Complete address as PostalAddress
print(placeMark.postalAddress as Any)  //  Import Contacts

// Location name
if let locationName = placeMark.name  {
    print(locationName)
}

// Street address
if let street = placeMark.thoroughfare {
   print(street)
}

// Country
if let country = placeMark.country {
   print(country)
}
})

More Data can be retrieved

name, thoroughfare, subThoroughfare, locality, subLocality, administrativeArea, subAdministrativeArea, postalcode, isoCountryCode, country, inlandWater, areaOfInterest

Answer 3

Thanks to @Kampi for this. This is an updated Swift 2.0 (Xcode 7) Version:

func setUsersClosestCity()
{
    let geoCoder = CLGeocoder()
    let location = CLLocation(latitude: _point1.coordinate.latitude, longitude: _point1.coordinate.longitude)
    geoCoder.reverseGeocodeLocation(location)
    {
        (placemarks, error) -> Void in

        let placeArray = placemarks as [CLPlacemark]!

        // Place details
        var placeMark: CLPlacemark!
        placeMark = placeArray?[0]

        // Address dictionary
        print(placeMark.addressDictionary)

        // Location name
        if let locationName = placeMark.addressDictionary?["Name"] as? NSString
        {
            print(locationName)
        }

        // Street address
        if let street = placeMark.addressDictionary?["Thoroughfare"] as? NSString
        {
            print(street)
        }

        // City
        if let city = placeMark.addressDictionary?["City"] as? NSString
        {
            print(city)
        }

        // Zip code
        if let zip = placeMark.addressDictionary?["ZIP"] as? NSString
        {
            print(zip)
        }

        // Country
        if let country = placeMark.addressDictionary?["Country"] as? NSString
        {
            print(country)
        }
    }
}