Geocodificar um local de forma inversa
Mantenha tudo organizado com as coleções
Salve e categorize o conteúdo com base nas suas preferências.
Desenvolvedores do Espaço Econômico Europeu (EEE)
Quando o mapa é pressionado por muito tempo, as coordenadas do gesto são enviadas ao
serviço de geocodificação inversa. Se a operação for bem-sucedida, um marcador com uma janela de informações
que contém o resultado será adicionado ao mapa.
Primeiros passos
Antes de testar o exemplo de código, é necessário configurar o ambiente de desenvolvimento.
Para mais informações, consulte Exemplos de código do SDK do Maps para iOS.
Ver o código
Swift
import GoogleMaps
import UIKit
// Sample code for GeoCoder service.
class GeocoderViewController: UIViewController {
private lazy var mapView: GMSMapView = {
let camera = GMSCameraPosition(latitude: -33.868, longitude: 151.2086, zoom: 12)
return GMSMapView(frame: .zero, camera: camera)
}()
private lazy var geocoder = GMSGeocoder()
override func loadView() {
view = mapView
mapView.delegate = self
}
}
extension GeocoderViewController: GMSMapViewDelegate {
func mapView(_ mapView: GMSMapView, didLongPressAt coordinate: CLLocationCoordinate2D) {
// On a long press, reverse geocode this location.
geocoder.reverseGeocodeCoordinate(coordinate) { response, error in
guard let address = response?.firstResult() else {
let errorMessage = error.map { String(describing: $0) } ?? "<no error>"
print(
"Could not reverse geocode point (\(coordinate.latitude), \(coordinate.longitude)): \(errorMessage)"
)
return
}
print("Geocoder result: \(address)")
let marker = GMSMarker(position: address.coordinate)
marker.appearAnimation = .pop
marker.map = mapView
guard let lines = address.lines, let title = lines.first else { return }
marker.title = title
if lines.count > 1 {
marker.snippet = lines[1]
}
}
}
}
Objective-C
#import "GoogleMapsDemos/Samples/GeocoderViewController.h"
#import <GoogleMaps/GoogleMaps.h>
@implementation GeocoderViewController {
GMSMapView *_mapView;
GMSGeocoder *_geocoder;
}
- (void)viewDidLoad {
[super viewDidLoad];
GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.868
longitude:151.2086
zoom:12];
_mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];
_mapView.delegate = self;
_geocoder = [[GMSGeocoder alloc] init];
self.view = _mapView;
}
- (void)mapView:(GMSMapView *)mapView didLongPressAtCoordinate:(CLLocationCoordinate2D)coordinate {
// On a long press, reverse geocode this location.
__weak __typeof__(self) weakSelf = self;
GMSReverseGeocodeCallback handler = ^(GMSReverseGeocodeResponse *response, NSError *error) {
[weakSelf handleResponse:response coordinate:coordinate error:error];
};
[_geocoder reverseGeocodeCoordinate:coordinate completionHandler:handler];
}
- (void)handleResponse:(nullable GMSReverseGeocodeResponse *)response
coordinate:(CLLocationCoordinate2D)coordinate
error:(nullable NSError *)error {
GMSAddress *address = response.firstResult;
if (address) {
NSLog(@"Geocoder result: %@", address);
GMSMarker *marker = [GMSMarker markerWithPosition:address.coordinate];
NSArray<NSString *> *lines = [address lines];
marker.title = [lines firstObject];
if (lines.count > 1) {
marker.snippet = [lines objectAtIndex:1];
}
marker.appearAnimation = kGMSMarkerAnimationPop;
marker.map = _mapView;
} else {
NSLog(@"Could not reverse geocode point (%f,%f): %@", coordinate.latitude, coordinate.longitude,
error);
}
}
@end
Executar o app de exemplo completo localmente
O app de exemplo do SDK do Maps para iOS está disponível como um arquivo de download no GitHub.
Siga estas etapas para instalar e testar o app de exemplo do SDK do Maps para iOS.
- Execute
git clone https://github.com/googlemaps-samples/maps-sdk-for-ios-samples.git
para clonar o repositório de amostras em um diretório local.
Abra uma janela de terminal, navegue até o diretório em que você clonou os arquivos de amostra e
detalhe o diretório GoogleMaps:
Swift
cd maps-sdk-for-ios-samples-main/GoogleMaps-Swift
pod install
open GoogleMapsSwiftDemos.xcworkspace
Objective-C
cd maps-sdk-for-ios-samples-main/GoogleMaps
pod install
open GoogleMapsDemos.xcworkspace
- No Xcode, pressione o botão de compilação para
criar o app
com o esquema atual. O build produz um erro, pedindo que você insira sua chave de API
no arquivo
SDKConstants.swift
para Swift ou no arquivo SDKDemoAPIKey.h
para Objective-C.
- Gere uma chave de API do seu projeto com o SDK do Maps para iOS ativado.
- Edite o arquivo
SDKConstants.swift
para Swift ou o arquivo SDKDemoAPIKey.h
para Objective-C e cole sua chave de API na definição da constante
apiKey
ou kAPIKey
. Exemplo:
Swift
static let apiKey = "YOUR_API_KEY"
Objective-C
static NSString *const kAPIKey = @"YOUR_API_KEY";
- No arquivo
SDKConstants.swift
(Swift) ou SDKDemoAPIKey.h
(Objective-C), remova a seguinte linha, porque ela é usada para registrar o problema definido pelo usuário:
Swift
#error (Register for API Key and insert here. Then delete this line.)
Objective-C
#error Register for API Key and insert here.
- Compile e execute o projeto. A janela do simulador do iOS aparece, mostrando
uma lista de demonstrações do SDK do Maps.
- Escolha uma das opções mostradas para testar um recurso do SDK do Maps para iOS.
- Se for preciso permitir que o GoogleMapsDemos acesse seu local, escolha Permitir.
Exceto em caso de indicação contrária, o conteúdo desta página é licenciado de acordo com a Licença de atribuição 4.0 do Creative Commons, e as amostras de código são licenciadas de acordo com a Licença Apache 2.0. Para mais detalhes, consulte as políticas do site do Google Developers. Java é uma marca registrada da Oracle e/ou afiliadas.
Última atualização 2025-08-31 UTC.
[null,null,["Última atualização 2025-08-31 UTC."],[[["\u003cp\u003eThis code demonstrates reverse geocoding, converting coordinates to a human-readable address when a user long-presses a location on a Google Map.\u003c/p\u003e\n"],["\u003cp\u003eUpon a long press, a marker with an info window displaying the address is placed on the map at the specified coordinates.\u003c/p\u003e\n"],["\u003cp\u003eTo run the code, you need to configure your development environment with the Maps SDK for iOS and obtain a Google Maps API key.\u003c/p\u003e\n"],["\u003cp\u003eThe sample app provides various demos showcasing different features of the Maps SDK for iOS, accessible after building and running the project.\u003c/p\u003e\n"]]],["Upon a long press on the map, the gesture's coordinates are sent to the reverse geocoding service. A successful response results in a marker being added to the map at that location. The marker's info window then displays the address obtained from the service. The marker's title shows the first line of the address and the marker snippet displays the second line of the address if present.\n"],null,["**European Economic Area (EEA) developers** If your billing address is in the European Economic Area, effective on 8 July 2025, the [Google Maps Platform EEA Terms of Service](https://cloud.google.com/terms/maps-platform/eea) will apply to your use of the Services. Functionality varies by region. [Learn more](/maps/comms/eea/faq).\n\nWhen the map is long pressed, the coordinates of the gesture are sent to the reverse geocoding service. If successful, a marker with an info window containing the result is added to the map.\n\nGet started\n\nBefore you can try the sample code, you must configure your development environment.\nFor more information, see [Maps SDK for iOS code samples](/maps/documentation/ios-sdk/examples).\n\nView the code \n\nSwift \n\n```swift\nimport GoogleMaps\nimport UIKit\n\n// Sample code for GeoCoder service.\nclass GeocoderViewController: UIViewController {\n\n private lazy var mapView: GMSMapView = {\n let camera = GMSCameraPosition(latitude: -33.868, longitude: 151.2086, zoom: 12)\n return GMSMapView(frame: .zero, camera: camera)\n }()\n\n private lazy var geocoder = GMSGeocoder()\n\n override func loadView() {\n view = mapView\n mapView.delegate = self\n }\n}\n\nextension GeocoderViewController: GMSMapViewDelegate {\n func mapView(_ mapView: GMSMapView, didLongPressAt coordinate: CLLocationCoordinate2D) {\n // On a long press, reverse geocode this location.\n geocoder.reverseGeocodeCoordinate(coordinate) { response, error in\n guard let address = response?.firstResult() else {\n let errorMessage = error.map { String(describing: $0) } ?? \"\u003cno error\u003e\"\n print(\n \"Could not reverse geocode point (\\(coordinate.latitude), \\(coordinate.longitude)): \\(errorMessage)\"\n )\n return\n }\n print(\"Geocoder result: \\(address)\")\n let marker = GMSMarker(position: address.coordinate)\n marker.appearAnimation = .pop\n marker.map = mapView\n\n guard let lines = address.lines, let title = lines.first else { return }\n marker.title = title\n if lines.count \u003e 1 {\n marker.snippet = lines[1]\n }\n }\n }\n}https://github.com/googlemaps-samples/maps-sdk-for-ios-samples/blob/86408feffd008565cd2cafce8aff3dc27f1f41bb/GoogleMaps-Swift/GoogleMapsSwiftDemos/Swift/Samples/GeocoderViewController.swift#L14-L56\n \n```\n\nObjective-C \n\n```objective-c\n#import \"GoogleMapsDemos/Samples/GeocoderViewController.h\"\n\n#import \u003cGoogleMaps/GoogleMaps.h\u003e\n\n@implementation GeocoderViewController {\n GMSMapView *_mapView;\n GMSGeocoder *_geocoder;\n}\n\n- (void)viewDidLoad {\n [super viewDidLoad];\n GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.868\n longitude:151.2086\n zoom:12];\n\n _mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];\n _mapView.delegate = self;\n\n _geocoder = [[GMSGeocoder alloc] init];\n\n self.view = _mapView;\n}\n\n- (void)mapView:(GMSMapView *)mapView didLongPressAtCoordinate:(CLLocationCoordinate2D)coordinate {\n // On a long press, reverse geocode this location.\n __weak __typeof__(self) weakSelf = self;\n GMSReverseGeocodeCallback handler = ^(GMSReverseGeocodeResponse *response, NSError *error) {\n [weakSelf handleResponse:response coordinate:coordinate error:error];\n };\n [_geocoder reverseGeocodeCoordinate:coordinate completionHandler:handler];\n}\n\n- (void)handleResponse:(nullable GMSReverseGeocodeResponse *)response\n coordinate:(CLLocationCoordinate2D)coordinate\n error:(nullable NSError *)error {\n GMSAddress *address = response.firstResult;\n if (address) {\n NSLog(@\"Geocoder result: %@\", address);\n\n GMSMarker *marker = [GMSMarker markerWithPosition:address.coordinate];\n NSArray\u003cNSString *\u003e *lines = [address lines];\n\n marker.title = [lines firstObject];\n if (lines.count \u003e 1) {\n marker.snippet = [lines objectAtIndex:1];\n }\n\n marker.appearAnimation = kGMSMarkerAnimationPop;\n marker.map = _mapView;\n } else {\n NSLog(@\"Could not reverse geocode point (%f,%f): %@\", coordinate.latitude, coordinate.longitude,\n error);\n }\n}\n\n@end \nhttps://github.com/googlemaps-samples/maps-sdk-for-ios-samples/blob/86408feffd008565cd2cafce8aff3dc27f1f41bb/GoogleMaps/GoogleMapsDemos/Samples/GeocoderViewController.m#L16-L71\n\n \n```\n\nRun the full sample app locally\n\nThe Maps SDK for iOS sample app is available as a\n[download archive](https://github.com/googlemaps-samples/maps-sdk-for-ios-samples/archive/main.zip)\nfrom [GitHub](https://github.com/googlemaps-samples/maps-sdk-for-ios-samples/tree/main/GoogleMaps).\nFollow these steps to install and try the Maps SDK for iOS sample app.\n\n1. Run `git clone https://github.com/googlemaps-samples/maps-sdk-for-ios-samples.git` to clone the samples repository into a local directory.\n2. Open a terminal window, navigate to the directory where you cloned the sample files, and\n drill down into the GoogleMaps directory:\n\n Swift \n\n cd maps-sdk-for-ios-samples-main/GoogleMaps-Swift\n pod install\n open GoogleMapsSwiftDemos.xcworkspace\n\n Objective-C \n\n cd maps-sdk-for-ios-samples-main/GoogleMaps\n pod install\n open GoogleMapsDemos.xcworkspace\n\n3. In Xcode, press the compile button to [build the app](https://developer.apple.com/documentation/xcode/building-and-running-an-app) with the current scheme. The build produces an error, prompting you to enter your API key in the `SDKConstants.swift` file for Swift or`SDKDemoAPIKey.h` file for Objective-C.\n4. [Get an API key](/maps/documentation/ios-sdk/get-api-key) from your project with the [Maps SDK for iOS enabled](/maps/documentation/ios-sdk/cloud-setup#enabling-apis).\n5. Edit the `SDKConstants.swift` file for Swift or`SDKDemoAPIKey.h` file for Objective-C and paste your API key into the definition of either the `apiKey` or `kAPIKey` constant. For example: \n\n Swift \n\n ```scdoc\n static let apiKey = \"YOUR_API_KEY\"\n ```\n\n Objective-C \n\n ```objective-c\n static NSString *const kAPIKey = @\"YOUR_API_KEY\";\n ```\n6. In the `SDKConstants.swift` file (Swift) or`SDKDemoAPIKey.h` file (Objective-C), remove the following line, because it's used to register the user-defined issue: \n\n Swift \n\n ```text\n #error (Register for API Key and insert here. Then delete this line.)\n ```\n\n Objective-C \n\n ```text\n #error Register for API Key and insert here.\n ```\n7. Build and run the project. The iOS simulator window appears, showing a list of **Maps SDK Demos**.\n8. Choose one of the options displayed, to experiment with a feature of the Maps SDK for iOS.\n9. If prompted to allow GoogleMapsDemos to access your location, choose **Allow**."]]