如何在IOS中使用经度和经度通过CLlocationManager获取城市名称？

Question

I am trying to get address via CLLocationManager using latitude and longitude but it only returns state and country name, I want city also, I am attaching my code can anybody tell me that how can I alter my code to get city name also.Below is my code

- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations
{
    currentLocation = [locations objectAtIndex:0];
    CLGeocoder *geocoder1 = [[CLGeocoder alloc] init];

     NSLog(@"Detected Location : %f, %f", currentLocation.coordinate.latitude, currentLocation.coordinate.longitude);

    //CLLocation *newLocation = [[CLLocation alloc]initWithLatitude:26.9260 longitude:75.8235];

    CLLocation *newLocation = [[CLLocation alloc]initWithLatitude:currentLocation.coordinate.latitude longitude:currentLocation.coordinate.longitude];

    [geocoder1 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);
                       }

                   }];
}

Answer 1

Try this ..

-(NSString*)getAddressFromLatLong : (NSString *)latLng {
    //  NSString *string = [[Address.text stringByAppendingFormat:@"+%@",cityTxt.text] stringByAppendingFormat:@"+%@",addressText];
    NSString *esc_addr =  [latLng stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

        NSString *req = [NSString stringWithFormat:@"http://maps.google.com/maps/api/geocode/json?sensor=false&address=%@", esc_addr];
        NSString *result = [NSString stringWithContentsOfURL:[NSURL URLWithString:req] encoding:NSUTF8StringEncoding error:NULL];
        NSMutableDictionary *data = [NSJSONSerialization JSONObjectWithData:[result dataUsingEncoding:NSUTF8StringEncoding]options:NSJSONReadingMutableContainers error:nil];
        NSMutableArray *dataArray = (NSMutableArray *)[data valueForKey:@"results" ];
        if (dataArray.count == 0) {
            UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"Error" message:@"Please Enter a valid address" delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil];
            [alert show];
        }else{
            for (id firstTime in dataArray) {
                NSString *jsonStr1 = [firstTime valueForKey:@"formatted_address"];
                return jsonStr1;
            }
        }

    return nil;
}

Send comma separated Latitude longitude .. and try It's working fine

Reference Link Get Address From Latitude Longitude using Apple Function in iOS & iPad

Answer 2

You are using k-constants from ABPerson class from AddressBook framework for CLGeocoder object keys. While some may match, I'm pretty sure others will not.

You can try ...

NSMutableArray *addrArray = [[NSMutableArray alloc] init];
//to return address line(s)
addrArray = [NSMutableArray arrayWithArray: [p.addressDictionary objectForKey:@"FormattedAddressLines"]];
[addrArray removeLastObject]; //country name
NSString *addressString = [addrArray componentsJoinedByString:@" ,"];
#if DEBUG
                NSLog(@"Address: %@", addressString);
#endif

Answer 3

We will get Complete Address based on latitude and longitude.Here is the Sample Code.

 - (void) getAddressFromLatLon:(CLLocation *)location
 {

      CLGeocoder *geocoder = [[CLGeocoder alloc] init] ;
      [geocoder reverseGeocodeLocation:location
               completionHandler:^(NSArray *array, NSError *error){
    if (error){
        NSLog(@"Geocode failed with error: %@", error);
        return;
    }
    CLPlacemark *placemark = [array objectAtIndex:0];
     NSLog(@"City %@",placemark.subAdministrativeArea);
     NSLog(@"State %@",placemark.administrativeArea);

     }];
 }

In below i mentioned different types.So easily you can check it.These are all belongs to CLPlacemark class objects.This class can be available on CoreLocation Framework.

@property (nonatomic, readonly, copy, nullable) NSString *name; // eg. Apple Inc.
@property (nonatomic, readonly, copy, nullable) NSString *thoroughfare; // street name, eg. Infinite Loop
@property (nonatomic, readonly, copy, nullable) NSString *subThoroughfare; // eg. 1
@property (nonatomic, readonly, copy, nullable) NSString *locality; // city, eg. Cupertino
@property (nonatomic, readonly, copy, nullable) NSString *subLocality // neighborhood, common name, eg. Mission District
@property (nonatomic, readonly, copy, nullable) NSString *administrativeArea; // state, eg. CA
@property (nonatomic, readonly, copy, nullable) NSString *subAdministrativeArea; // City, eg. Santa Clara
@property (nonatomic, readonly, copy, nullable) NSString *postalCode; // zip code, eg. 95014
@property (nonatomic, readonly, copy, nullable) NSString *ISOcountryCode; // eg. US
@property (nonatomic, readonly, copy, nullable) NSString *country; // eg. United States
@property (nonatomic, readonly, copy, nullable) NSString *inlandWater; // eg. Lake Tahoe
@property (nonatomic, readonly, copy, nullable) NSString *ocean; // eg. Pacific Ocean
@property (nonatomic, readonly, copy, nullable) NSArray<NSString *> *areasOfInterest;

What ever you want you just add it and get the result.Here is reference link .