iOS MapKit and Google Map API Geocoding

Google_geocode.m

//GOOGLE GEOCODING

//Get Address String from Google API CLLocation Lat/Lon

-(void) googleReverseGeocode :(CLLocation *)location {
    
    [[GMSGeocoder geocoder] reverseGeocodeCoordinate:location.coordinate completionHandler:
     ^(GMSReverseGeocodeResponse *response, NSError *error){

         if (error) {
             NSLog(@"Error %@", error.description);
         } else {
             GMSAddress *gmsAddress = response.firstResult;
             NSString *address = [NSString stringWithFormat:@"%@ %@ %@ %@", gmsAddress.thoroughfare, gmsAddress.locality, gmsAddress.administrativeArea, gmsAddress.postalCode];
             [self.addressField setText:address];
             [self.mapDataObj setAddress:address];

              GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:gmsAddress.coordinate.latitude
                                                                      longitude:gmsAddress.coordinate.longitude
                                                                           zoom:ZOOMLEVEL];
              [self.gMapView setCamera:camera];
             
             //Update annotation for coord
             CLLocationCoordinate2D coord = CLLocationCoordinate2DMake(gmsAddress.coordinate.latitude, gmsAddress.coordinate.longitude);
             [self updateAnnotationCoord:coord];
         }

     }];
    
}

Google_reverseaddress.m

//GOOGLE GEOCODING

//Get CLLocationCoordinate2D from Address String
// You don't need to use GoogleKit, but it was very convenient
// Using https://github.com/maxsokolov/GoogleKit
// https://cocoapods.org/pods/GoogleKit

- (void) googleReverseAddress:(NSString *)address completion:(void (^)(CLLocationCoordinate2D coordinate))completionBlock
{

    GKGeocoderQuery *query = [GKGeocoderQuery query];
    
    query.key = @"SERVER-API-KEY";
    query.address = address;

    __block CLLocationCoordinate2D coord;
    
    // perform query
    [query lookupLocation:^(NSArray *results, NSError *error) {
        
        GKGeocoderPlace *place = [results firstObject];
        NSLog(@"place %@",results);
        
        coord = place.coordinate;
        
        GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:coord.latitude
                                                                longitude:coord.longitude
                                                                     zoom:ZOOMLEVEL];
        [self.gMapView setCamera:camera];
        completionBlock(coord);
    }];

}

MapKit_geocode.m

//APPLE GEOCODING

//Get Address String from CLLocation Lat/Lon

- (void)reverseGeocode:(CLLocation *)location {
    CLGeocoder *geocoder = [[CLGeocoder alloc] init];
    [geocoder reverseGeocodeLocation:location completionHandler:^(NSArray *placemarks, NSError *error) {
        if (error) {
            NSLog(@"Error %@", error.description);
        } else {
            CLPlacemark *placemark = [placemarks lastObject];
            NSString *address = [NSString stringWithFormat:@"%@", ABCreateStringWithAddressDictionary(placemark.addressDictionary, NO)];
            [self.addressField setText:[address stringByReplacingOccurrencesOfString:@"United States" withString:@""]];
            [self.mapDataObj setAddress:self.addressField.text];
            
            MKCoordinateRegion viewRegion = MKCoordinateRegionMakeWithDistance(location.coordinate, 500, 500);
            [self.mapView setRegion:viewRegion animated:YES];
        }
    }];
}

MapKit_reverseaddress.m

//APPLE GEOCODING

//Get CLLocationCoordinate2D from Address String

-(void)reverseAddress:(NSString*)address completion:(void (^)(BOOL success))completionBlock {
    CLGeocoder *geocoder = [[CLGeocoder alloc] init];
    __block MKCoordinateRegion region;
    [geocoder geocodeAddressString:address completionHandler:^(NSArray *placemarks, NSError *error) {
        if (error) {
            NSLog(@"%@", error);
        } else {
            CLPlacemark *placemark = [placemarks lastObject];
            float spanX = 0.00725;
            float spanY = 0.00725;
            
            region.center.latitude = placemark.location.coordinate.latitude;
            region.center.longitude = placemark.location.coordinate.longitude;
            region.span = MKCoordinateSpanMake(spanX, spanY);
            
            [self.mapView setRegion:region animated:YES];
            
            if(address != NULL){
                [self.addressField setText:address];
            }
            
            //Add annotation for coord
            CLLocationCoordinate2D coord = CLLocationCoordinate2DMake(region.center.latitude, region.center.longitude);
            [self updateCoord:coord];
            
        }
        
        completionBlock(YES);
    }];
}