How to get device location name in iPhone? - iphone

Question

Currently i am working in iPhone application, Using CLLocationManager to get Latitude and Longitude values fine.
I didn't know this? How to get the device location (Address) name from this latitude and longitude value? please help me
Thanks in Advance
I tried this:
- (void)viewDidLoad
{
[super viewDidLoad];
LocationManager = [[CLLocationManager alloc]init];
LocationManager.delegate=self;
LocationManager.desiredAccuracy = kCLLocationAccuracyBest;
[LocationManager startUpdatingLocation];
}
- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
{
NSString * latitude = [[[NSString alloc] initWithFormat:#"%f", newLocation.coordinate.latitude]autorelease];
NSString * longitude = [[[NSString alloc] initWithFormat:#"%f", newLocation.coordinate.longitude]autorelease];
[LocationManager stopUpdatingLocation];
NSLog(#"latitude:%#",latitude);
NSLog(#"longitude:%#",longitude);
}

Answer 1

-(void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
{
[manager stopUpdatingLocation];
lati = [[NSString alloc] initWithFormat:#"%+.6f", newLocation.coordinate.latitude];
NSLog(#"address:%#",lati);
longi = [[NSString alloc] initWithFormat:#"%+.6f", newLocation.coordinate.longitude];
NSLog(#"address:%#",longi);
[geoCoder reverseGeocodeLocation: newLocation completionHandler: ^(NSArray *placemarks, NSError *error)
{
//Get nearby address
CLPlacemark *placemark = [placemarks objectAtIndex:0];
//String to hold address
NSString *locatedAt = [[placemark.addressDictionary valueForKey:#"FormattedAddressLines"] componentsJoinedByString:#", "];
//Print the location to console
NSLog(#"I am currently at %#",locatedAt);
address = [[NSString alloc]initWithString:locatedAt];
NSLog(#"address:%#",address);
}];
}

Answer 2

CLGeocoder *ceo = [[CLGeocoder alloc]init];
CLLocation *loc = [[CLLocation alloc]initWithLatitude:32.00 longitude:21.322];
[ceo reverseGeocodeLocation: loc 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);
//Print the location to console
NSLog(#"I am currently at %#",locatedAt);
}];

Answer 3

You have ta make some reverse location. You're lucky : Apple provides a class to do that.
See CLGeocoder (for iOS >= 5.0) or MKReverseGeocoder (for iOS < 5.0)

Answer 4

You can use Google Maps API for this (works on any iOS):
NSString *req = [NSString stringWithFormat:#"http://maps.googleapis.com/maps/api/geocode/json?latlng=%.5f,%.5f&sensor=false&language=da", location.latitude, location.longitude];
NSString *resultString = [NSString stringWithContentsOfURL:[NSURL URLWithString:req] encoding:NSUTF8StringEncoding error:NULL];
Then you can parse this response to NSDictionary using Any JSON library (SBJSON in this case):
SBJSON *jsonObject = [[SBJSON alloc] init];
NSError *error = nil;
NSDictionary *response = [jsonObject objectWithString:resultString error:&error];
[jsonObject release];
Extracting address:
if (error) {
NSLog(#"Error parsing response string to NSObject: %#",[error localizedDescription]);
}else{
NSString *status = [response valueForKey:#"status"];
if ([status isEqualToString:#"OK"]) {
NSArray *results = [response objectForKey:#"results"];
int count = [results count];
//NSSLog(#"Matches: %i", count);
if (count > 0) {
NSDictionary *result = [results objectAtIndex:0];
NSString *address = [result valueForKey:#"formatted_address"];
}
}
}

Answer 5

You have to create a CLLocation object and pass that on to reverseGeoCoder.

Answer 6

Before iOS 5.0 we have MKReverse Geo-coder class to find this..Now it is deprecated..
We have to use CLGeocoder class in Core Location Framework