Swift + CLGeocoder to show address string on Map

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

import UIKit

import MapKit

class ViewController: UIViewController, CLLocationManagerDelegate

{

    @IBOutlet weak var map: MKMapView!

    

  

    override func viewDidLoad()

    {

        super.viewDidLoad()

        

       self.map.mapType = MKMapType.Standard

       self.map.showsUserLocation = true

        

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

     

         let address = "address string"

        

        var geocoder:CLGeocoder = CLGeocoder()

        

        geocoder.geocodeAddressString(address, completionHandler: {(placemarks: [AnyObject]!, error: NSError!) -> Void in

            

            if(error != nil)

            {

                

                println("Error", error)

            }

                

            else if let placemark = placemarks?[0] as? CLPlacemark

            {

                

                var placemark:CLPlacemark = placemarks[0] as CLPlacemark

                var coordinates:CLLocationCoordinate2D = placemark.location.coordinate

                

                var pointAnnotation:MKPointAnnotation = MKPointAnnotation()

                pointAnnotation.coordinate = coordinates

                pointAnnotation.title = "Apple HQ"

                

                self.map.addAnnotation(pointAnnotation)

                self.map.centerCoordinate = coordinates

                self.map.selectAnnotation(pointAnnotation, animated: true)

                

                println("Added annotation to map view")

            }

            

        })

    }

    override func didReceiveMemoryWarning()

    {

        super.didReceiveMemoryWarning()

       

    }

}

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

    }

    */

}

Get Address from Coordinate or CLLocation

CLLocation *loc = [[CLLocation alloc]initWithLatitude:37.3104 longitude:-122.0108];

[self getAddressFromLocation:loc];

-(void)getAddressFromLocation:(CLLocation*)loc

{

    CLGeocoder *ceo = [[CLGeocoder alloc]init];

    

    

    [ceo reverseGeocodeLocation:loc completionHandler:^(NSArray *placemarks, NSError *error)

     {

         

         NSLog(@"Found placemarks: %@, error: %@", placemarks, error);

         

         

         

         NSLog(@"placemarks=%@",[placemarks objectAtIndex:0]);

         CLPlacemark *placemark1 = [placemarks objectAtIndex:0];

         

         NSLog(@"placemark.ISOcountryCode =%@",placemark1.ISOcountryCode);

         NSLog(@"placemark.country =%@",placemark1.country);

         NSLog(@"placemark.postalCode =%@",placemark1.postalCode);

         NSLog(@"placemark.administrativeArea =%@",placemark1.administrativeArea);

         NSLog(@"placemark.locality =%@",placemark1.locality);

         NSLog(@"placemark.subLocality =%@",placemark1.subLocality);

         NSLog(@"placemark.subThoroughfare =%@",placemark1.subThoroughfare);

         

         

         NSString *locatedaddress = [[placemark.addressDictionary valueForKey:@"FormattedAddressLines"] componentsJoinedByString:@", "];

         

         //Print the location in the console

         NSLog(@"Currently address is: %@",locatedaddress);

         

         

         if (error == nil && [placemarks count] > 0)

         {

             placemark = [placemarks lastObject];

             

             // strAdd -> take bydefault value nil

             NSString *strAdd = nil;

             

             if ([placemark.subThoroughfare length] != 0)

                 strAdd = placemark.subThoroughfare;

             

             if ([placemark.thoroughfare length] != 0)

             {

                 // strAdd -> store value of current location

                 if ([strAdd length] != 0)

                     strAdd = [NSString stringWithFormat:@"%@, %@",strAdd,[placemark thoroughfare]];

                 else

                 {

                     // strAdd -> store only this value,which is not null

                     strAdd = placemark.thoroughfare;

                 }

             }

             

             if ([placemark.postalCode length] != 0)

             {

                 if ([strAdd length] != 0)

                     strAdd = [NSString stringWithFormat:@"%@, %@",strAdd,[placemark postalCode]];

                 else

                     strAdd = placemark.postalCode;

             }

             

             if ([placemark.locality length] != 0)

             {

                 if ([strAdd length] != 0)

                     strAdd = [NSString stringWithFormat:@"%@, %@",strAdd,[placemark locality]];

                 else

                     strAdd = placemark.locality;

             }

             

             if ([placemark.administrativeArea length] != 0)

             {

                 if ([strAdd length] != 0)

                     strAdd = [NSString stringWithFormat:@"%@, %@",strAdd,[placemark administrativeArea]];

                 else

                     strAdd = placemark.administrativeArea;

             }

             

             if ([placemark.country length] != 0)

             {

                 if ([strAdd length] != 0)

                     strAdd = [NSString stringWithFormat:@"%@, %@",strAdd,[placemark country]];

                 else

                     strAdd = placemark.country;

             }

             

             

             NSLog(@"Address : %@", strAdd);

             

             

             

             address = strAdd;

             

         }

         

         

     }];

    

}

Show Coordinate on Map View

CLLocationCoordinate2D _coordinate = CLLocationCoordinate2DMake(37.3104, -122.0108);

    MKCoordinateRegion extentsRegion = MKCoordinateRegionMakeWithDistance(_coordinate, 50, 50);

    

    

    extentsRegion.span.latitudeDelta = 0.02f;

    

    extentsRegion.span.longitudeDelta = 0.02f;

    

    extentsRegion.center = _coordinate;

    

    [self.myMapView setRegion:extentsRegion animated:YES];

    

    

    //set annotation

    MKPointAnnotation *annotation = [[MKPointAnnotation alloc]init];

    

    NSString *sttt = [[NSString alloc]initWithFormat:@"%f,%f",_coordinate.latitude,_coordinate.longitude];

    

    

    

    

    annotation.title = [NSString stringWithFormat:@"%@",address];

    annotation.subtitle = sttt;

    

    annotation.coordinate = _coordinate;

    

    [self.myMapView addAnnotation:annotation];

Get Coordinate from Address String Using CLGeocoder and Show on Map with Default Annotation

CLLocationCoordinate2D cordinate = [self geoCodeUsingAddress:@"

6138 Bollinger Road, San Jose, United States"];

    

NSLog(@"coordinate from address::%f , %f",cordinate.longitude,cordinate.latitude);

- (CLLocationCoordinate2D) geoCodeUsingAddress:(NSString *)address

{

        CLGeocoder *geocoder11 = [[CLGeocoder alloc] init];

    [geocoder11 geocodeAddressString: address completionHandler:^(NSArray* placemarks, NSError* error){

        for (CLPlacemark* aPlacemark in placemarks)

        {

            // Process the placemark.

            NSString *latDest1 = [NSString stringWithFormat:@"%.4f",aPlacemark.location.coordinate.latitude];

            NSString *lngDest1 = [NSString stringWithFormat:@"%.4f",aPlacemark.location.coordinate.longitude];

           

           

           

           NSLog(@"coordinate from address::%@ , %@",latDest1,lngDest1);

           

           

            CLLocationCoordinate2D center;

            center.latitude = aPlacemark.location.coordinate.latitude;

            center.longitude = aPlacemark.location.coordinate.longitude;

            

            

            

            MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(center, 50, 50);

            

            region.span.latitudeDelta = 0.02f;

            

            region.span.longitudeDelta = 0.02f;

            

            region.center = center;

            

            

            [self.myMapView setRegion:region animated:YES];

            

            

            

            

            

            //set annotation

            MKPointAnnotation *annotation = [[MKPointAnnotation alloc]init];

            

            NSString *sttt = [[NSString alloc]initWithFormat:@"%f,%f",center.latitude,center.longitude];

            

            annotation.title = address;

            annotation.subtitle = sttt;

            

            annotation.coordinate = center;

            

            [self.myMapView addAnnotation:annotation];

           

           return center;

           

           

        }

    }];

}

Get Coordinate from Address String Using Google Api and Show on Map with Default Annotation

CLLocationCoordinate2D cordinate = [self geoCodeUsingAddress:@"Your Address"];

    

   

NSLog(@"coordinate from address::%f , %f",cordinate.longitude,cordinate.latitude);

- (CLLocationCoordinate2D) geoCodeUsingAddress:(NSString *)address

{

    double latitude = 0, longitude = 0;

    

    NSString *esc_addr =  [address stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

    

    

    NSString *req = [NSString stringWithFormat:@"http://maps.google.com/maps/api/geocode/json?sensor=false&address=%@", esc_addr];

    

    

    

    NSString *result = [NSString stringWithContentsOfURL:[NSURL URLWithString:req] encoding:NSUTF8StringEncoding error:NULL];

    

    

    

    

    if (result)

    {

        NSScanner *scanner = [NSScanner scannerWithString:result];

        if ([scanner scanUpToString:@"\"lat\" :" intoString:nil] && [scanner scanString:@"\"lat\" :" intoString:nil]) {

            [scanner scanDouble:&latitude];

            if ([scanner scanUpToString:@"\"lng\" :" intoString:nil] && [scanner scanString:@"\"lng\" :" intoString:nil]) {

                [scanner scanDouble:&longitude];

            }

        }

    }

    CLLocationCoordinate2D center;

    center.latitude = latitude;

    center.longitude = longitude;

    

    

    

    

    

    

    MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(center, 50, 50);

    

    region.span.latitudeDelta = 0.02f;

    

    region.span.longitudeDelta = 0.02f;

    

    region.center = center;

    

    

    [self.myMapView setRegion:region animated:YES];

    

    

    

    

    

    //set annotation

    MKPointAnnotation *annotation = [[MKPointAnnotation alloc]init];

    

    NSString *sttt = [[NSString alloc]initWithFormat:@"%f,%f",center.latitude,center.longitude];

    

    annotation.title = address;

    annotation.subtitle = sttt;

    

    annotation.coordinate = center;

    

    [self.myMapView addAnnotation:annotation];

    

    

    

    

    return center;

}

You will get the result like this

{
   "results" : [
      {
         "address_components" : [
            {
               "long_name" : "Coimbatore",
               "short_name" : "Coimbatore",
               "types" : [ "locality", "political" ]
            },
            {
               "long_name" : "Coimbatore",
               "short_name" : "Coimbatore",
               "types" : [ "administrative_area_level_2", "political" ]
            },
            {
               "long_name" : "Tamil Nadu",
               "short_name" : "TN",
               "types" : [ "administrative_area_level_1", "political" ]
            },
            {
               "long_name" : "India",
               "short_name" : "IN",
               "types" : [ "country", "political" ]
            }
         ],
         "formatted_address" : "Coimbatore, Tamil Nadu, India",
         "geometry" : {
            "bounds" : {
               "northeast" : {
                  "lat" : 11.14356120,
                  "lng" : 77.1133590
               },
               "southwest" : {
                  "lat" : 10.89792370,
                  "lng" : 76.8830110
               }
            },
            "location" : {
               "lat" : 11.01684450,
               "lng" : 76.95583209999999
            },
            "location_type" : "APPROXIMATE",
            "viewport" : {
               "northeast" : {
                  "lat" : 11.09502970,
                  "lng" : 77.05123890
               },
               "southwest" : {
                  "lat" : 10.89792370,
                  "lng" : 76.8830110
               }
            }
         },
         "types" : [ "locality", "political" ]
      }
   ],
   "status" : "OK"
}