How to get place name from lattitude and longitude?

Question

I am getting the latitude and longitude from the api, and need to get the place name from these cooridinates so that I use this block of code

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

CLLocation *LocationAtual=[[CLLocation alloc] initWithLatitude:[[latlong objectForKey:@"latitude"] doubleValue] 
                                                     longitude:[[latlong objectForKey:@"longitude"] doubleValue]];

NSLog(@"loc %@", LocationAtual);

[ceo reverseGeocodeLocation:LocationAtual  completionHandler:^(NSArray *placemarks, NSError *error)
{
  CLPlacemark *placemark = [placemarks objectAtIndex:0];
  NSLog(@"placemark %@",placemark);
  //String to hold address
  NSString *locatedAt = [[placemark.addressDictionary valueForKey:@"FormattedAddressLines"] componentsJoinedByString:@", "];
  NSLog(@"addressDictionary %@", placemark.addressDictionary);

  NSLog(@"placemark %@",placemark.region);
  NSLog(@"placemark %@",placemark.country);  // Give Country Name
  NSLog(@"placemark %@",placemark.locality); // Extract the city name
  NSLog(@"location %@",placemark.name);
  NSLog(@"location %@",placemark.ocean);
  NSLog(@"location %@",placemark.postalCode);
  NSLog(@"location %@",placemark.subLocality);

  NSLog(@"location %@",placemark.location);

  NSLog(@"I am currently at %@",locatedAt);
  NSLog(@"  ");
}
];

But when my control goes on this line

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

this block of code is not executed. Control goes.

Get it from here @sandeep http://stackoverflow.com/questions/14346516/set-address-string-with-reversegeocodelocation-and-return-from-method — Vizllx, May 25 '16 at 06:55
@DharmbirSingh these are the values sir 28.566540 77.209841 error i get these values from api — sandeep tomar, May 25 '16 at 07:10
ok to be to the point tell me : NSLog(@"loc %@", LocationAtual); what it prints ? NSLog(@"placemark %@",placemark); what this prints ? NSLog(@"addressDictionary %@", placemark.addressDictionary); what this prints ? — maddy, May 25 '16 at 07:35
placemark CLCircularRegion (identifier:'<+28.56713205,+77.21233975> radius 471.64', center:<+28.56713205,+77.21233975>, radius:471.64m) 2 placemark India placemark New Delhi location All India Institute Of Medical Sciences - AIIMS location (null) location 110029 location Ansari Nagar location <+28.56713200,+77.21182200> +/- 100.00m (speed -1.00 mps / course -1.00) @ 25/05/2016 13:11:55 India Standard Time 2016-05-25 13:11:55.759 GGR Driver Staging[13889:8711845] I am currently at All India Institute Of Medical Sciences - AIIMS, Ansari Nagar, New Delhi, Delhi 110029, India — sandeep tomar, May 25 '16 at 07:44
City = "New Delhi"; Country = India; CountryCode = IN; FormattedAddressLines = ( "All India Institute Of Medical Sciences - AIIMS", "Ansari Nagar", "New Delhi", "Delhi 110029", India ); Name = "All India Institute Of Medical Sciences - AIIMS"; State = Delhi; SubAdministrativeArea = Delhi; SubLocality = "Ansari Nagar"; ZIP = 110029; — sandeep tomar, May 25 '16 at 07:45
@Alok But sir when i tried to add breakpoints in block its not working — sandeep tomar, May 25 '16 at 07:47
that's what @trojanfoe is telling you . This process is call Asynchronous (don't ever say control goes :) ). Your code is working perfectly. Now you can use Notification Center to be notified that your callback method have got some values you are interested in. — maddy, May 25 '16 at 07:55

score 1 · Accepted Answer · answered May 25 '16 at 08:19

In viewDidLoad OfYour class or any other class just add:

- (void)viewDidLoad
{
    [super viewDidLoad];
// Add observer
        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(gotPlaceInfo:) name:@"gotPlaceInfoNotification" object:nil];
}

//define `gotPlaceInfo`:
-(void)gotPlaceInfo:(NSNotification *)notif{

NSLog(@"place mark dict is  %@", notif.userInfo);
}

i have just add a single line in your code:

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

    CLLocation *LocationAtual=[[CLLocation alloc] initWithLatitude:[[latlong objectForKey:@"latitude"] doubleValue] 
                                                         longitude:[[latlong objectForKey:@"longitude"] doubleValue]];

    NSLog(@"loc %@", LocationAtual);

    [ceo reverseGeocodeLocation:LocationAtual  completionHandler:^(NSArray *placemarks, NSError *error)
    {
      CLPlacemark *placemark = [placemarks objectAtIndex:0];

NSDictionary *currentLocationDictionary = @{@"CLPlacemark":CLPlacemark};
      NSLog(@"placemark %@",placemark);
      //String to hold address
      NSString *locatedAt = [[placemark.addressDictionary valueForKey:@"FormattedAddressLines"] componentsJoinedByString:@", "];
      NSLog(@"addressDictionary %@", placemark.addressDictionary);

      NSLog(@"placemark %@",placemark.region);
      NSLog(@"placemark %@",placemark.country);  // Give Country Name
      NSLog(@"placemark %@",placemark.locality); // Extract the city name
      NSLog(@"location %@",placemark.name);
      NSLog(@"location %@",placemark.ocean);
      NSLog(@"location %@",placemark.postalCode);
      NSLog(@"location %@",placemark.subLocality);

      NSLog(@"location %@",placemark.location);

      NSLog(@"I am currently at %@",locatedAt);
      NSLog(@"  ");
NSNotification *notification2 = [NSNotification notificationWithName:@"gotPlaceInfoNotification" object:self userInfo:currentLocationDictionary];
    [[NSNotificationCenter defaultCenter] postNotification:notification2];
    }
    ];

Hope it will give you a overall learning

Yes sir this is work for me and thanks for understand me a new concept for me — sandeep tomar, May 25 '16 at 08:42

score 0 · Answer 2 · edited May 23 '17 at 12:31

0

Try this code from Ram G answer of This Question it works for you

- (void) getAddressFromLatLon:(CLLocation *)bestLocation
{
    NSLog(@"%f %f", bestLocation.coordinate.latitude, bestLocation.coordinate.longitude);
    CLGeocoder *geocoder = [[CLGeocoder alloc] init] ;
    [geocoder reverseGeocodeLocation:bestLocation
                   completionHandler:^(NSArray *placemarks, NSError *error)
    {
        if (error){
            NSLog(@"Geocode failed with error: %@", error);
            return;
        }
        CLPlacemark *placemark = [placemarks objectAtIndex:0];
        NSLog(@"placemark.ISOcountryCode %@",placemark.ISOcountryCode);
        NSLog(@"locality %@",placemark.locality);
        NSLog(@"postalCode %@",placemark.postalCode);

    }];

}

edited May 23 '17 at 12:31

Community

1
1

answered May 25 '16 at 06:53

get the same problem sir – sandeep tomar May 25 '16 at 07:03
this block not executed [geocoder reverseGeocodeLocation:bestLocation completionHandler:^(NSArray *placemarks, NSError *error) { if (error){ NSLog(@"Geocode failed with error: %@", error); return; } CLPlacemark *placemark = [placemarks objectAtIndex:0]; NSLog(@"placemark.ISOcountryCode %@",placemark.ISOcountryCode); NSLog(@"locality %@",placemark.locality); NSLog(@"postalCode %@",placemark.postalCode); }]; – sandeep tomar May 25 '16 at 07:04
CLLocationManagerDelegate declare it in .h file and import #import – sandeep tomar May 25 '16 at 07:07
import this one #import – Vidhi Patel May 25 '16 at 07:12
Are you getting proper lat long? – Vidhi Patel May 25 '16 at 07:24
@VidhiPatel yeah coordinates are fine. should i use didupdatelocation method – sandeep tomar May 25 '16 at 07:32
@AbhinandanPratap any reason why his code not working ? how your code differ from OP – maddy May 25 '16 at 07:39
Remove return from this code if (error){ NSLog(@"Geocode failed with error: %@", error);return;} and check this error is print or not – Vidhi Patel May 25 '16 at 08:08

How to get place name from lattitude and longitude?

2 Answers2