Getting Postal Code using CLGeocoder - ios

Question

I'm trying to get the postal code when my map region has changed by using CLGeocoder:
CLLocation *location = [[CLLocation alloc] initWithLatitude:13.184098 longitude:77.725978];
- (void)mapView:(MKMapView *)mapView regionDidChangeAnimated:(BOOL)animated
{
CLLocation *location=[[CLLocation alloc] initWithLatitude:13.184098 longitude:77.725978];
[self.geocoder reverseGeocodeLocation:location completionHandler:^(NSArray *placemarks, NSError *error)
{
if (!(error))
{
CLPlacemark *placemark = [placemarks objectAtIndex:0];
NSLog(#"placemark %#",placemark);
NSString *Zipcode = [[NSString alloc]initWithString:placemark.postalCode];
NSLog(#"%#",Zipcode);
}
else
{
NSLog(#"Geocode failed with error %#", error); // Error handling must required
}
}];
}
i am getting response like this
{ Country = India; CountryCode = IN; FormattedAddressLines = ( Amarwara, "Madhya Pradesh", India ); Name = Amarwara; State = "Madhya Pradesh"; SubAdministrativeArea = Chhindwara; SubLocality = Amarwara; }
I'm able to get the postal code for the first time. When the region changes, I try to reverse geocode the postal code. I even tried setting the location explicitly (line 1) and it's still returning null postal code. Can any one help this strange bug?

Answer 1

Try this
CLGeocoder *geocoder = [[CLGeocoder alloc] init];
CLLocation *newLocation = [[CLLocation alloc]initWithLatitude:21.1700
longitude:72.8300];
[geocoder reverseGeocodeLocation:newLocation
completionHandler:^(NSArray *placemarks, NSError *error) {
if (error) {
NSLog(#"Geocode failed with error: %#", error);
return;
}
if (placemarks && placemarks.count > 0)
{
CLPlacemark *placemark = placemarks[0];
NSDictionary *addressDictionary =
placemark.addressDictionary;
NSLog(#"%# ", addressDictionary);
NSString *address = [addressDictionary
objectForKey:(NSString *)kABPersonAddressStreetKey];
NSString *city = [addressDictionary
objectForKey:(NSString *)kABPersonAddressCityKey];
NSString *state = [addressDictionary
objectForKey:(NSString *)kABPersonAddressStateKey];
NSString *zip = [addressDictionary
objectForKey:(NSString *)kABPersonAddressZIPKey];
NSLog(#"%# %# %# %#", address,city, state, zip);
}
}];