Question

I am Using MKReverseGeocoder with locationManager's didUpdateToLocation delegate But in i am wondering about some value getting null while i am testing app in Device.

My code is Bellow:-

- (void)viewDidLoad 
{
    locationManager = [[CLLocationManager alloc] init];
    locationManager.delegate = self;
    locationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters;
    [locationManager startUpdatingLocation];


     [super viewDidLoad];
}

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
{
    // this creates a MKReverseGeocoder to find a placemark using the found coordinates
    reverseGeocoder = [[MKReverseGeocoder alloc] initWithCoordinate:newLocation.coordinate];
    reverseGeocoder.delegate = self;
    [reverseGeocoder start];
}

- (void)reverseGeocoder:(MKReverseGeocoder *)geocoder didFailWithError:(NSError *)error
{
    NSLog(@"MKReverseGeocoder has failed.");
}

- (void)reverseGeocoder:(MKReverseGeocoder *)geocoder didFindPlacemark:(MKPlacemark *)placemark
{
    MKPlacemark * myPlacemark = placemark;
    NSString *city = myPlacemark.thoroughfare;
    NSString *subThrough=myPlacemark.subThoroughfare;
    NSString *locality=myPlacemark.locality;
    NSString *subLocality=myPlacemark.subLocality;
    NSString *adminisArea=myPlacemark.administrativeArea;
    NSString *subAdminArea=myPlacemark.subAdministrativeArea;
    NSString *postalCode=myPlacemark.postalCode;
    NSString *country=myPlacemark.country;
    NSString *countryCode=myPlacemark.countryCode;


    NSLog(@"city%@",city);
    NSLog(@"subThrough%@",subThrough);
    NSLog(@"locality%@",locality);
    NSLog(@"subLocality%@",subLocality);
    NSLog(@"adminisArea%@",adminisArea);
    NSLog(@"subAdminArea%@",subAdminArea);
    NSLog(@"postalCode%@",postalCode);
    NSLog(@"country%@",country);
    NSLog(@"countryCode%@",countryCode);

}

OUTPUT

cityDrive-in Road

subThrough(null)

locality(null)

subLocality(null)

adminisAreaGujarat

subAdminArea(null)

postalCode(null)

countryIndia

countryCodeIN

USING CLGeocoder

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
{
    // this creates a MKReverseGeocoder to find a placemark using the found coordinates
//    reverseGeocoder = [[MKReverseGeocoder alloc] initWithCoordinate:newLocation.coordinate];
//    reverseGeocoder.delegate = self;
//    [reverseGeocoder start];

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

    [reverseGeo reverseGeocodeLocation: newLocation completionHandler:
     ^(NSArray *placemarks, NSError *error) {

         NSLog(@"%@",[placemarks objectAtIndex:0]);
         for (CLPlacemark *placemark in placemarks) {



             NSLog(@"~~~~~~~~%@",placemark.locality);

         }


     }];
}

OUTPUT IS:- ~~~~~~~~(null)

My above code Working Properly in simulator but not in Device.. 🙁 Please Help and guide me on proper way to get city name

Answer 1

You shouldn’t really use MKReverseGeocoder as it has been depreciated by apple in iOS5, you should really use CLGeocoder. The CLGeocode will return a information which is based in the NSArray *placemarks, you can then iterate through them and call the keys in the assoc array.
Please go through the link.

CLGeoCode Class Reference

Related sample code