Geocoding to UITextfield not displaying - ios

Question

I am using reverse geocoding which works but I am trying to separate the attributes. For example I want to have zip code displayed in it's own text field.
This is what I've tried but I get a breakpoint at if([placemarks count] >0)
- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations
{
// Make sure this is a recent location event
CLLocation *newLocation = [locations lastObject];
NSTimeInterval eventInterval = [newLocation.timestamp timeIntervalSinceNow];
if(abs(eventInterval) < 30.0)
{
// Make sure the event is valid
if (newLocation.horizontalAccuracy < 0)
return;
// Instantiate _geoCoder if it has not been already
if (_geocoder == nil)
_geocoder = [[CLGeocoder alloc] init];
//Only one geocoding instance per action
//so stop any previous geocoding actions before starting this one
if([_geocoder isGeocoding])
[_geocoder cancelGeocode];
[_geocoder reverseGeocodeLocation: newLocation
completionHandler: ^(NSArray* placemarks, NSError* error)
{
if([placemarks count] > 0)
{
CLPlacemark *foundPlacemark = [placemarks objectAtIndex:0];
self.address.text =
[NSString stringWithFormat:#"%#",
foundPlacemark.description];
self.zip.text =
[NSString stringWithFormat:#"%#",
foundPlacemark.postalCode];
}
else if (error.code == kCLErrorGeocodeCanceled)
{
NSLog(#"Geocoding cancelled");
}
else if (error.code == kCLErrorGeocodeFoundNoResult)
{
self.address.text=#"No geocode result found";
}
else if (error.code == kCLErrorGeocodeFoundPartialResult)
{
self.address.text=#"Partial geocode result";
}
else
{
self.address.text =
[NSString stringWithFormat:#"Unknown error: %#",
error.description];
}
}
];

Answer 1

Try to handle error first by checking if its nil:
if (error) {
// handle here
NSLog(#"error: %#", error);
return; // exit statement
}
// handle code here if there was no error
and avoid strong reference cycles create a weak object of your self, when calling a object use this instnace.
__weak typeof(self) weakSelf = self;
so self.address.text=#"Partial geocode result"; will turn to weakSelf.address.text=#"some text here...";