Swift + CLGeocoder to get address from current location

First of all add & Import CoreLocation framework in your class.

If you are working with iOS 8 you must include the NSLocationAlwaysUsageDescription key in info.plist file of your current project to get the location services to work.

import UIKit

import CoreLocation

class ViewController: UIViewController, CLLocationManagerDelegate

{

    let locationManager = CLLocationManager()

    

    override func viewDidLoad()

    {

        super.viewDidLoad()

        

      }

    override func didReceiveMemoryWarning()

    {

        super.didReceiveMemoryWarning()

       

    }

  

        //--- Find Address of Current Location ---//

    @IBAction func findMyLocation(sender: AnyObject)

    {

        locationManager.delegate = self

        locationManager.desiredAccuracy = kCLLocationAccuracyBest

        locationManager.requestAlwaysAuthorization()

        locationManager.startUpdatingLocation()

        

        

       let location = self.locationManager.location

        

        var latitude: Double = location.coordinate.latitude

        var longitude: Double = location.coordinate.longitude

        

        println("current latitude :: \(latitude)")

        println("current longitude :: \(longitude)")

        

    }

   You have to override CLLocationManager.didUpdateLocations (part of CLLocationManagerDelegate) to get notified when the location manager retrieves the current location:

    func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!)

    {

                 //--- CLGeocode to get address of current location ---//

        CLGeocoder().reverseGeocodeLocation(manager.location, completionHandler: {(placemarks, error)->Void in

            

            if (error != nil)

            {

                println("Reverse geocoder failed with error" + error.localizedDescription)

                return

            }

            

            if placemarks.count > 0

            {

                let pm = placemarks[0] as CLPlacemark

                self.displayLocationInfo(pm)

            }

            else

            {

                println("Problem with the data received from geocoder")

            }

        })        

    }

    func displayLocationInfo(placemark: CLPlacemark?)

    {

        if let containsPlacemark = placemark

        {

            //stop updating location to save battery life

            locationManager.stopUpdatingLocation()

            

            let locality = (containsPlacemark.locality != nil) ? containsPlacemark.locality : ""

            let postalCode = (containsPlacemark.postalCode != nil) ? containsPlacemark.postalCode : ""

            let administrativeArea = (containsPlacemark.administrativeArea != nil) ? containsPlacemark.administrativeArea : ""

            let country = (containsPlacemark.country != nil) ? containsPlacemark.country : ""

            

            println(locality)

            println(postalCode)

            println(administrativeArea)

            println(country)

        }

        

    }

    

    func locationManager(manager: CLLocationManager!, didFailWithError error: NSError!)

    {

        println("Error while updating location " + error.localizedDescription)

    }

}

Swift + Show Current Location and Update Location in a MKMapView

First of all add & Import CoreLocation and MapKit framework in your class.

If you are working with iOS 8 you must include the NSLocationAlwaysUsageDescription key in info.plist file of your current project to get the location services to work.

import UIKit

import CoreLocation

import MapKit

class ViewController: UIViewController, CLLocationManagerDelegate

{

    @IBOutlet weak var map: MKMapView!

    

    let locationManager = CLLocationManager()

    

    override func viewDidLoad()

    {

        super.viewDidLoad()

        

       self.map.mapType = MKMapType.Standard

       self.map.showsUserLocation = true

        

       self.map.removeAnnotations(self.map.annotations)

        locationManager.delegate = self

        locationManager.desiredAccuracy = kCLLocationAccuracyBest

        locationManager.requestAlwaysAuthorization()

        locationManager.startUpdatingLocation()

        

        

        let location = self.locationManager.location

        

        var latitude: Double = location.coordinate.latitude

        var longitude: Double = location.coordinate.longitude

        

        println("current latitude :: \(latitude)")

        println("current longitude :: \(longitude)")

    }

    override func didReceiveMemoryWarning()

    {

        super.didReceiveMemoryWarning()

       

    }

   You have to override CLLocationManager.didUpdateLocations (part of CLLocationManagerDelegate) to get notified when the location manager retrieves the current location:

    func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!)

    {

        //-

        

        let location = locations.last as CLLocation

        

        let center = CLLocationCoordinate2D(latitude: location.coordinate.latitude, longitude: location.coordinate.longitude)

        let region = MKCoordinateRegion(center: center, span: MKCoordinateSpan(latitudeDelta: 0.01, longitudeDelta: 0.01))

        

        

        self.map.setRegion(region, animated: true)

        

    

        // Add an annotation on Map View

        var point: MKPointAnnotation! = MKPointAnnotation()

        

        point.coordinate = location.coordinate

        point.title = "Current Location"

        point.subtitle = "sub title"

        

        self.map.addAnnotation(point)

        

        //stop updating location to save battery life

        locationManager.stopUpdatingLocation()

    }

//--- Uncomment to add custom annotation view ---//

    /*

    //--- use this code to add custom image (Annotation) for pin point ---//

    func mapView(mapView: MKMapView!, viewForAnnotation annotation: MKAnnotation!) -> MKAnnotationView! 

{

        if !(annotation is MKPointAnnotation)

        {

            return nil

        }

        

        let reuseId = "test"

        

        var anView = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseId)

        

        if anView == nil

        {

            anView = MKAnnotationView(annotation: annotation, reuseIdentifier: reuseId)

            anView.image = UIImage(named:"1.png")

            anView.canShowCallout = true

        }

        else

        {

            anView.annotation = annotation

        }

        

        return anView

    }

    */

}