Cómo mostrar una ventana de información para un marcador
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En este ejemplo, se muestran marcadores en tres ciudades importantes de Australia. Cuando el usuario presiona un marcador, aparece una ventana de información.
Comenzar
Antes de probar el código de muestra, debes configurar tu entorno de desarrollo.
Para obtener más información, consulta Muestras de código del SDK de Maps para iOS.
Consulta el código
Swift
import GoogleMaps
import UIKit
final class MarkerInfoWindowViewController: UIViewController {
private let sydneyMarker = GMSMarker(
position: CLLocationCoordinate2D(latitude: -33.8683, longitude: 151.2086))
private let melbourneMarker = GMSMarker(
position: CLLocationCoordinate2D(latitude: -37.81969, longitude: 144.966085))
private let brisbaneMarker = GMSMarker(
position: CLLocationCoordinate2D(latitude: -27.4710107, longitude: 153.0234489))
private lazy var contentView: UIImageView = {
return UIImageView(image: UIImage(named: "aeroplane"))
}()
override func loadView() {
let cameraPosition = GMSCameraPosition(latitude: -37.81969, longitude: 144.966085, zoom: 4)
let mapView = GMSMapView(frame: .zero, camera: cameraPosition)
mapView.delegate = self
view = mapView
sydneyMarker.title = "Sydney"
sydneyMarker.snippet = "Population: 4,605,992"
sydneyMarker.map = mapView
melbourneMarker.title = "Melbourne"
melbourneMarker.snippet = "Population: 4,169,103"
melbourneMarker.map = mapView
brisbaneMarker.title = "Brisbane"
brisbaneMarker.snippet = "Population: 2,189,878"
brisbaneMarker.map = mapView
}
}
extension MarkerInfoWindowViewController: GMSMapViewDelegate {
func mapView(_ mapView: GMSMapView, markerInfoWindow marker: GMSMarker) -> UIView? {
if marker == sydneyMarker {
return contentView
}
return nil
}
func mapView(_ mapView: GMSMapView, markerInfoContents marker: GMSMarker) -> UIView? {
if marker == brisbaneMarker {
return contentView
}
return nil
}
func mapView(_ mapView: GMSMapView, didCloseInfoWindowOf marker: GMSMarker) {
showToast(message: "Info window for marker \(marker.title ?? "") closed.")
}
func mapView(_ mapView: GMSMapView, didLongPressInfoWindowOf marker: GMSMarker) {
showToast(message: "Info window for marker \(marker.title ?? "") long pressed.")
}
}
extension UIViewController {
func showToast(message: String) {
let toast = UIAlertController(title: nil, message: message, preferredStyle: .alert)
present(
toast, animated: true,
completion: {
DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + .seconds(2)) {
toast.dismiss(animated: true)
}
})
}
}
Objective-C
#import "GoogleMapsDemos/Samples/MarkerInfoWindowViewController.h"
#import "GoogleMapsDemos/UIViewController+GMSToastMessages.h"
#import <GoogleMaps/GoogleMaps.h>
@interface MarkerInfoWindowViewController () <GMSMapViewDelegate>
@end
@implementation MarkerInfoWindowViewController {
GMSMarker *_sydneyMarker;
GMSMarker *_melbourneMarker;
GMSMarker *_brisbaneMarker;
UIView *_contentView;
}
- (void)viewDidLoad {
[super viewDidLoad];
GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-37.81969
longitude:144.966085
zoom:4];
GMSMapView *mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];
_sydneyMarker = [[GMSMarker alloc] init];
_sydneyMarker.title = @"Sydney";
_sydneyMarker.snippet = @"Population: 4,605,992";
_sydneyMarker.position = CLLocationCoordinate2DMake(-33.8683, 151.2086);
_sydneyMarker.map = mapView;
NSLog(@"sydneyMarker: %@", _sydneyMarker);
_melbourneMarker.map = nil;
_melbourneMarker = [[GMSMarker alloc] init];
_melbourneMarker.title = @"Melbourne";
_melbourneMarker.snippet = @"Population: 4,169,103";
_melbourneMarker.position = CLLocationCoordinate2DMake(-37.81969, 144.966085);
_melbourneMarker.map = mapView;
NSLog(@"melbourneMarker: %@", _melbourneMarker);
_brisbaneMarker.map = nil;
_brisbaneMarker = [[GMSMarker alloc] init];
_brisbaneMarker.title = @"Brisbane";
_brisbaneMarker.snippet = @"Population: 2,189,878";
_brisbaneMarker.position = CLLocationCoordinate2DMake(-27.4710107, 153.0234489);
_brisbaneMarker.map = mapView;
NSLog(@"brisbaneMarker: %@", _brisbaneMarker);
_contentView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"aeroplane"]];
mapView.delegate = self;
self.view = mapView;
}
#pragma mark GMSMapViewDelegate
- (UIView *)mapView:(GMSMapView *)mapView markerInfoWindow:(GMSMarker *)marker {
if (marker == _sydneyMarker) {
return _contentView;
}
return nil;
}
- (UIView *)mapView:(GMSMapView *)mapView markerInfoContents:(GMSMarker *)marker {
if (marker == _brisbaneMarker) {
return _contentView;
}
return nil;
}
- (void)mapView:(GMSMapView *)mapView didCloseInfoWindowOfMarker:(GMSMarker *)marker {
NSString *message =
[NSString stringWithFormat:@"Info window for marker %@ closed.", marker.title];
[self gms_showToastWithMessage:message];
}
- (void)mapView:(GMSMapView *)mapView didLongPressInfoWindowOfMarker:(GMSMarker *)marker {
NSString *message =
[NSString stringWithFormat:@"Info window for marker %@ long pressed.", marker.title];
[self gms_showToastWithMessage:message];
}
@end
Ejecuta la app de ejemplo completa de forma local
La app de ejemplo del SDK de Maps para iOS está disponible como archivo de descarga en GitHub.
Sigue estos pasos para instalar y probar la app de ejemplo del SDK de Maps para iOS.
- Ejecuta
git clone https://github.com/googlemaps-samples/maps-sdk-for-ios-samples.git
para clonar el repositorio de muestras en un directorio local.
Abre una ventana de terminal, navega al directorio en el que clonaste los archivos de muestra y desplázate hacia abajo hasta el directorio 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
- En Xcode, presiona el botón de compilación para
compilar la app
con el esquema actual. La compilación genera un error que te solicita que ingreses tu clave de API
en el archivo
SDKConstants.swift
para Swift o en el archivoSDKDemoAPIKey.h
para Objective-C.
- Obtén una clave de API de tu proyecto con el SDK de Maps para iOS habilitado.
- Edita el archivo
SDKConstants.swift
para Swift o el archivo SDKDemoAPIKey.h
para Objective-C y pega tu clave de API en la definición de la constante apiKey
o kAPIKey
. Por ejemplo:
Swift
static let apiKey = "YOUR_API_KEY"
Objective-C
static NSString *const kAPIKey = @"YOUR_API_KEY";
- En el archivo
SDKConstants.swift
(Swift) o en el archivo SDKDemoAPIKey.h
(Objective-C), quita la siguiente línea, ya que se usa para registrar el problema definido por el usuario:
Swift
#error (Register for API Key and insert here. Then delete this line.)
Objective-C
#error Register for API Key and insert here.
- Compila y ejecuta el proyecto. Aparecerá la ventana del simulador de iOS, que mostrará una lista de demostraciones del SDK de Maps.
- Elige una de las opciones que se muestran para experimentar con una función del SDK de Maps para iOS.
- Si se te solicita que permitas que GoogleMapsDemos acceda a tu ubicación, elige Permitir.
Salvo que se indique lo contrario, el contenido de esta página está sujeto a la licencia Atribución 4.0 de Creative Commons, y los ejemplos de código están sujetos a la licencia Apache 2.0. Para obtener más información, consulta las políticas del sitio de Google Developers. Java es una marca registrada de Oracle o sus afiliados.
Última actualización: 2025-08-31 (UTC)
[null,null,["Última actualización: 2025-08-31 (UTC)"],[[["\u003cp\u003eThis example showcases markers for Sydney, Melbourne, and Brisbane on a Google Map within an iOS app.\u003c/p\u003e\n"],["\u003cp\u003eTapping a marker reveals an info window, with a custom info window displayed for Sydney and Brisbane.\u003c/p\u003e\n"],["\u003cp\u003eUsers can run the full sample app locally by cloning the repository, installing dependencies, and building the project in Xcode.\u003c/p\u003e\n"],["\u003cp\u003eBefore running the app, obtain and configure a Google Maps API key within the project's source code.\u003c/p\u003e\n"]]],[],null,["This example displays markers on three major cities in Australia. When the user taps a marker, an info window appears.\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\nfinal class MarkerInfoWindowViewController: UIViewController {\n\n private let sydneyMarker = GMSMarker(\n position: CLLocationCoordinate2D(latitude: -33.8683, longitude: 151.2086))\n\n private let melbourneMarker = GMSMarker(\n position: CLLocationCoordinate2D(latitude: -37.81969, longitude: 144.966085))\n\n private let brisbaneMarker = GMSMarker(\n position: CLLocationCoordinate2D(latitude: -27.4710107, longitude: 153.0234489))\n\n private lazy var contentView: UIImageView = {\n return UIImageView(image: UIImage(named: \"aeroplane\"))\n }()\n\n override func loadView() {\n let cameraPosition = GMSCameraPosition(latitude: -37.81969, longitude: 144.966085, zoom: 4)\n let mapView = GMSMapView(frame: .zero, camera: cameraPosition)\n mapView.delegate = self\n view = mapView\n\n sydneyMarker.title = \"Sydney\"\n sydneyMarker.snippet = \"Population: 4,605,992\"\n sydneyMarker.map = mapView\n\n melbourneMarker.title = \"Melbourne\"\n melbourneMarker.snippet = \"Population: 4,169,103\"\n melbourneMarker.map = mapView\n\n brisbaneMarker.title = \"Brisbane\"\n brisbaneMarker.snippet = \"Population: 2,189,878\"\n brisbaneMarker.map = mapView\n }\n}\n\nextension MarkerInfoWindowViewController: GMSMapViewDelegate {\n func mapView(_ mapView: GMSMapView, markerInfoWindow marker: GMSMarker) -\u003e UIView? {\n if marker == sydneyMarker {\n return contentView\n }\n return nil\n }\n\n func mapView(_ mapView: GMSMapView, markerInfoContents marker: GMSMarker) -\u003e UIView? {\n if marker == brisbaneMarker {\n return contentView\n }\n return nil\n }\n\n func mapView(_ mapView: GMSMapView, didCloseInfoWindowOf marker: GMSMarker) {\n showToast(message: \"Info window for marker \\(marker.title ?? \"\") closed.\")\n }\n\n func mapView(_ mapView: GMSMapView, didLongPressInfoWindowOf marker: GMSMarker) {\n showToast(message: \"Info window for marker \\(marker.title ?? \"\") long pressed.\")\n }\n}\n\nextension UIViewController {\n func showToast(message: String) {\n let toast = UIAlertController(title: nil, message: message, preferredStyle: .alert)\n present(\n toast, animated: true,\n completion: {\n DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + .seconds(2)) {\n toast.dismiss(animated: true)\n }\n })\n }\n}https://github.com/googlemaps-samples/maps-sdk-for-ios-samples/blob/86408feffd008565cd2cafce8aff3dc27f1f41bb/GoogleMaps-Swift/GoogleMapsSwiftDemos/Swift/Samples/MarkerInfoWindowViewController.swift#L14-L87\n \n```\n\nObjective-C \n\n```objective-c\n#import \"GoogleMapsDemos/Samples/MarkerInfoWindowViewController.h\"\n\n#import \"GoogleMapsDemos/UIViewController+GMSToastMessages.h\"\n#import \u003cGoogleMaps/GoogleMaps.h\u003e\n\n@interface MarkerInfoWindowViewController () \u003cGMSMapViewDelegate\u003e\n\n@end\n\n@implementation MarkerInfoWindowViewController {\n GMSMarker *_sydneyMarker;\n GMSMarker *_melbourneMarker;\n GMSMarker *_brisbaneMarker;\n UIView *_contentView;\n}\n\n- (void)viewDidLoad {\n [super viewDidLoad];\n GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-37.81969\n longitude:144.966085\n zoom:4];\n GMSMapView *mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];\n\n _sydneyMarker = [[GMSMarker alloc] init];\n _sydneyMarker.title = @\"Sydney\";\n _sydneyMarker.snippet = @\"Population: 4,605,992\";\n _sydneyMarker.position = CLLocationCoordinate2DMake(-33.8683, 151.2086);\n _sydneyMarker.map = mapView;\n NSLog(@\"sydneyMarker: %@\", _sydneyMarker);\n\n _melbourneMarker.map = nil;\n _melbourneMarker = [[GMSMarker alloc] init];\n _melbourneMarker.title = @\"Melbourne\";\n _melbourneMarker.snippet = @\"Population: 4,169,103\";\n _melbourneMarker.position = CLLocationCoordinate2DMake(-37.81969, 144.966085);\n _melbourneMarker.map = mapView;\n NSLog(@\"melbourneMarker: %@\", _melbourneMarker);\n\n _brisbaneMarker.map = nil;\n _brisbaneMarker = [[GMSMarker alloc] init];\n _brisbaneMarker.title = @\"Brisbane\";\n _brisbaneMarker.snippet = @\"Population: 2,189,878\";\n _brisbaneMarker.position = CLLocationCoordinate2DMake(-27.4710107, 153.0234489);\n _brisbaneMarker.map = mapView;\n NSLog(@\"brisbaneMarker: %@\", _brisbaneMarker);\n\n _contentView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@\"aeroplane\"]];\n\n mapView.delegate = self;\n self.view = mapView;\n}\n\n#pragma mark GMSMapViewDelegate\n\n- (UIView *)mapView:(GMSMapView *)mapView markerInfoWindow:(GMSMarker *)marker {\n if (marker == _sydneyMarker) {\n return _contentView;\n }\n return nil;\n}\n\n- (UIView *)mapView:(GMSMapView *)mapView markerInfoContents:(GMSMarker *)marker {\n if (marker == _brisbaneMarker) {\n return _contentView;\n }\n return nil;\n}\n\n- (void)mapView:(GMSMapView *)mapView didCloseInfoWindowOfMarker:(GMSMarker *)marker {\n NSString *message =\n [NSString stringWithFormat:@\"Info window for marker %@ closed.\", marker.title];\n [self gms_showToastWithMessage:message];\n}\n\n- (void)mapView:(GMSMapView *)mapView didLongPressInfoWindowOfMarker:(GMSMarker *)marker {\n NSString *message =\n [NSString stringWithFormat:@\"Info window for marker %@ long pressed.\", marker.title];\n [self gms_showToastWithMessage:message];\n}\n\n@end \nhttps://github.com/googlemaps-samples/maps-sdk-for-ios-samples/blob/86408feffd008565cd2cafce8aff3dc27f1f41bb/GoogleMaps/GoogleMapsDemos/Samples/MarkerInfoWindowViewController.m#L16-L96\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**."]]