Get nome della località da latitudine e longitudine in iOS

Question

voglio trovare nome attuale posizione dalla latitudine e longitudine,

Ecco il mio frammento di codice ho provato, ma il mio registro mostra valore nullo in tutti i posti tranne in placemark, placemark.ISOcountryCode e placemark.country

Voglio il valore di placemark.locality e placemark.subLocality ma mostra valori nulli.

- (void)viewWillAppear:(BOOL)animated 
{ 
    [super viewWillAppear:animated]; 

    // this creates the CCLocationManager that will find your current location 
    locationManager = [[CLLocationManager alloc] init]; 
    locationManager.delegate = self; 
    locationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters; 
    [locationManager startUpdatingLocation]; 

} 

// this delegate is called when the app successfully finds your current location 
- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation 
{ 
    CLGeocoder *geocoder = [[CLGeocoder alloc] init]; 
    [geocoder reverseGeocodeLocation:locationManager.location 
        completionHandler:^(NSArray *placemarks, NSError *error) { 
         NSLog(@"reverseGeocodeLocation:completionHandler: Completion Handler called!"); 

         if (error){ 
          NSLog(@"Geocode failed with error: %@", error); 
          return; 

         } 

         NSLog(@"placemarks=%@",[placemarks objectAtIndex:0]); 
         CLPlacemark *placemark = [placemarks objectAtIndex:0]; 

         NSLog(@"placemark.ISOcountryCode =%@",placemark.ISOcountryCode); 
         NSLog(@"placemark.country =%@",placemark.country); 
         NSLog(@"placemark.postalCode =%@",placemark.postalCode); 
         NSLog(@"placemark.administrativeArea =%@",placemark.administrativeArea); 
         NSLog(@"placemark.locality =%@",placemark.locality); 
         NSLog(@"placemark.subLocality =%@",placemark.subLocality); 
         NSLog(@"placemark.subThoroughfare =%@",placemark.subThoroughfare); 

        }]; 
} 

// this delegate method is called if an error occurs in locating your current location 
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error 
{ 
    NSLog(@"locationManager:%@ didFailWithError:%@", manager, error); 
} 

Grazie In anticipo.

EDIT:

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation 
{ 
    CLGeocoder *geocoder = [[CLGeocoder alloc] init]; 

    CLLocation *currentLocation = newLocation; 

    if (currentLocation != nil) 
     NSLog(@"longitude = %.8f\nlatitude = %.8f", currentLocation.coordinate.longitude,currentLocation.coordinate.latitude); 

    // stop updating location in order to save battery power 
    [locationManager stopUpdatingLocation]; 


    [geocoder reverseGeocodeLocation:currentLocation completionHandler:^(NSArray *placemarks, NSError *error) 
    { 
     NSLog(@"Found placemarks: %@, error: %@", placemarks, error); 
     if (error == nil && [placemarks count] > 0) 
     { 
      CLPlacemark *placemark = [placemarks lastObject]; 

      // strAdd -> take bydefault value nil 
      NSString *strAdd = nil; 

      if ([placemark.subThoroughfare length] != 0) 
       strAdd = placemark.subThoroughfare; 

      if ([placemark.thoroughfare length] != 0) 
      { 
       // strAdd -> store value of current location 
       if ([strAdd length] != 0) 
        strAdd = [NSString stringWithFormat:@"%@, %@",strAdd,[placemark thoroughfare]]; 
       else 
       { 
        // strAdd -> store only this value,which is not null 
        strAdd = placemark.thoroughfare; 
       } 
      } 

      if ([placemark.postalCode length] != 0) 
      { 
       if ([strAdd length] != 0) 
        strAdd = [NSString stringWithFormat:@"%@, %@",strAdd,[placemark postalCode]]; 
       else 
        strAdd = placemark.postalCode; 
      } 

      if ([placemark.locality length] != 0) 
      { 
       if ([strAdd length] != 0) 
        strAdd = [NSString stringWithFormat:@"%@, %@",strAdd,[placemark locality]]; 
       else 
        strAdd = placemark.locality; 
      } 

      if ([placemark.administrativeArea length] != 0) 
      { 
       if ([strAdd length] != 0) 
        strAdd = [NSString stringWithFormat:@"%@, %@",strAdd,[placemark administrativeArea]]; 
       else 
        strAdd = placemark.administrativeArea; 
      } 

      if ([placemark.country length] != 0) 
      { 
       if ([strAdd length] != 0) 
        strAdd = [NSString stringWithFormat:@"%@, %@",strAdd,[placemark country]]; 
       else 
        strAdd = placemark.country; 
      } 
     } 
    }]; 
} 

Answer 1

I' Sto dando il frammento che sto usando per risolvere l'indirizzo. Includo anche il commento nel posto necessario per capire il codice per te. Inoltre, sentiti libero di porre qualsiasi domanda dallo snippet se non riesci a capire qualcosa.

Scrivi seguente frammento in didUpdateToLocation metodo

NSLog(@"didUpdateToLocation: %@", newLocation); 
CLLocation *currentLocation = newLocation; 

if (currentLocation != nil) 
    NSLog(@"longitude = %.8f\nlatitude = %.8f", currentLocation.coordinate.longitude,currentLocation.coordinate.latitude); 

// stop updating location in order to save battery power 
[locationManager stopUpdatingLocation]; 


// Reverse Geocoding 
NSLog(@"Resolving the Address"); 

// “reverseGeocodeLocation” method to translate the locate data into a human-readable address. 

// The reason for using "completionHandler" ---- 
    // Instead of using delegate to provide feedback, the CLGeocoder uses “block” to deal with the response. By using block, you do not need to write a separate method. Just provide the code inline to execute after the geocoding call completes. 

[geocoder reverseGeocodeLocation:currentLocation completionHandler:^(NSArray *placemarks, NSError *error) 
{ 
    NSLog(@"Found placemarks: %@, error: %@", placemarks, error); 
    if (error == nil && [placemarks count] > 0) 
    { 
     placemark = [placemarks lastObject]; 

     // strAdd -> take bydefault value nil 
     NSString *strAdd = nil; 

     if ([placemark.subThoroughfare length] != 0) 
      strAdd = placemark.subThoroughfare; 

     if ([placemark.thoroughfare length] != 0) 
     { 
      // strAdd -> store value of current location 
      if ([strAdd length] != 0) 
       strAdd = [NSString stringWithFormat:@"%@, %@",strAdd,[placemark thoroughfare]]; 
      else 
      { 
      // strAdd -> store only this value,which is not null 
       strAdd = placemark.thoroughfare; 
      } 
     } 

     if ([placemark.postalCode length] != 0) 
     { 
      if ([strAdd length] != 0) 
       strAdd = [NSString stringWithFormat:@"%@, %@",strAdd,[placemark postalCode]]; 
      else 
       strAdd = placemark.postalCode; 
     } 

     if ([placemark.locality length] != 0) 
     { 
      if ([strAdd length] != 0) 
       strAdd = [NSString stringWithFormat:@"%@, %@",strAdd,[placemark locality]]; 
      else 
       strAdd = placemark.locality; 
     } 

     if ([placemark.administrativeArea length] != 0) 
     { 
      if ([strAdd length] != 0) 
       strAdd = [NSString stringWithFormat:@"%@, %@",strAdd,[placemark administrativeArea]]; 
      else 
       strAdd = placemark.administrativeArea; 
     } 

     if ([placemark.country length] != 0) 
     { 
      if ([strAdd length] != 0) 
       strAdd = [NSString stringWithFormat:@"%@, %@",strAdd,[placemark country]]; 
      else 
       strAdd = placemark.country; 
     } 

Dove strAdd tornerà indirizzo utilizzando la geolocalizzazione ..

di una programmazione !!

Answer 2

Se la posizione che si sta cercando di ottenere è elencato in questa lista, allora c'è qualcosa di sbagliato nel codice ..

http://developer.apple.com/library/ios/#technotes/tn2289/_index.html#//apple_ref/doc/uid/DTS40011305

altrimenti CLGeoCoder non ha indirizzi verso altri paesi.

Ho affrontato lo stesso problema quindi l'ho usato per ottenere l'indirizzo .. Fornisce un indirizzo molto preciso.

http://maps.googleapis.com/maps/api/geocode/json?latlng=40.714224,-73.961452&sensor=true_or_false

Answer 3

Prima di tutto, luoghi di filtro in didUpdateToLocation per impedire l'uso cache o posizioni sbagliate per geocoding

NSTimeInterval locationAge = -[newLocation.timestamp timeIntervalSinceNow]; 

if (abs(locationAge) > 5.0) return; 

if (newLocation.horizontalAccuracy < 0) return; 

Inoltre, cercare di spostare il metodo reverseGeoCoding lontano da didUpdateToLocation

Answer 4

Una volta che avete latitude, longitude valori di una posizione è possibile utilizzare CLGeocoder ecco un tutorial che potrebbe aiutare.

Answer 5

utilizzare questa API per ottenere i dati e passare valori lat e lunghi.

API for Geo location

Answer 6

Usa API di Google per il geotagging inverso:

URL: http://maps.googleapis.com/maps/api/geocode/json?latlng=40.714224,-73.961452&sensor=true_or_false

Da: https://developers.google.com/maps/documentation/geocoding/

Answer 7

metodo con il blocco completo:

typedef void(^addressCompletion)(NSString *); 

-(void)getAddressFromLocation:(CLLocation *)location complationBlock:(addressCompletion)completionBlock 
{ 
    __block CLPlacemark* placemark; 
    __block NSString *address = nil; 

    CLGeocoder* geocoder = [CLGeocoder new]; 
    [geocoder reverseGeocodeLocation:location completionHandler:^(NSArray *placemarks, NSError *error) 
    { 
     if (error == nil && [placemarks count] > 0) 
     { 
      placemark = [placemarks lastObject]; 
      address = [NSString stringWithFormat:@"%@, %@ %@", placemark.name, placemark.postalCode, placemark.locality]; 
      completionBlock(address); 
     } 
    }]; 
} 

Questo è come usarlo:

CLLocation* eventLocation = [[CLLocation alloc] initWithLatitude:_latitude longitude:_longitude]; 

[self getAddressFromLocation:eventLocation complationBlock:^(NSString * address) { 
     if(address) { 
      _address = address; 
     } 
    }]; 

Answer 8

Prova questa

[geocoder reverseGeocodeLocation:currentLocation completionHandler:^(NSArray *placemarks, NSError *error) { 
     //..NSLog(@"Found placemarks: %@, error: %@", placemarks, error); 
     if (error == nil && [placemarks count] > 0) { 
      placemark = [placemarks lastObject]; 
      lblgetaddrees.text = [NSString stringWithFormat:@"%@,%@,%@,%@,%@,%@", 
            placemark.subThoroughfare, placemark.thoroughfare, 
            placemark.postalCode, placemark.locality, 
            placemark.administrativeArea, 
            placemark.country]; 
     } else { 
      //..NSLog(@"%@", error.debugDescription); 
     } 
    } ]; 

Answer 9

ho implementato la soluzione di Niru in Swift 3, distacco qui qualcuno dovrebbe bisogno:

let geocoder = CLGeocoder() 
geocoder.reverseGeocodeLocation(self.location!) { (placemarksArray, error) in 

    if (placemarksArray?.count)! > 0 { 

     let placemark = placemarksArray?.first 
     let number = placemark!.subThoroughfare 
     let bairro = placemark!.subLocality 
     let street = placemark!.thoroughfare 

     self.addressLabel.text = "\(street!), \(number!) - \(bairro!)" 
    } 
}