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Agrega un mapa con un marcador
En este instructivo, se muestra cómo agregar un mapa de Google Maps con un marcador a tu app para iOS. Está destinado a personas con conocimientos básicos o intermedios de Swift o Objective-C, además de conocimientos generales de Xcode. Si deseas obtener una guía avanzada para crear mapas, consulta la guía para desarrolladores.
Con este instructivo, crearás el siguiente mapa. El marcador se ubica en Sídney, Australia.
importUIKitimportGoogleMapsclassViewController:UIViewController{overridefuncviewDidLoad(){super.viewDidLoad()// Do any additional setup after loading the view.// Create a GMSCameraPosition that tells the map to display the// coordinate -33.86,151.20 at zoom level 6.letcamera=GMSCameraPosition.camera(withLatitude:-33.86,longitude:151.20,zoom:6.0)letmapView=GMSMapView.map(withFrame:self.view.frame,camera:camera)self.view.addSubview(mapView)// Creates a marker in the center of the map.letmarker=GMSMarker()marker.position=CLLocationCoordinate2D(latitude:-33.86,longitude:151.20)marker.title="Sydney"marker.snippet="Australia"marker.map=mapView}}
Objective-C
#import "ViewController.h"#import <GoogleMaps/GoogleMaps.h>@interfaceViewController()@end@implementationViewController-(void)viewDidLoad{[superviewDidLoad];// Do any additional setup after loading the view.// Create a GMSCameraPosition that tells the map to display the// coordinate -33.86,151.20 at zoom level 6.GMSCameraPosition*camera=[GMSCameraPositioncameraWithLatitude:-33.86longitude:151.20zoom:6];GMSMapView*mapView=[GMSMapViewmapWithFrame:self.view.framecamera:camera];mapView.myLocationEnabled=YES;[self.viewaddSubview:mapView];// Creates a marker in the center of the map.GMSMarker*marker=[[GMSMarkeralloc]init];marker.position=CLLocationCoordinate2DMake(-33.86,151.20);marker.title=@"Sydney";marker.snippet=@"Australia";marker.map=mapView;}@end
Si aún no tienes CocoaPods, instálalo en macOS ejecutando el siguiente comando desde la terminal:
sudo gem install cocoapods
Navega al directorio tutorials/map-with-marker.
Ejecuta el comando pod install. Esto instalará el SDK de Maps especificado en el archivo Podfile, junto con las dependencias.
Ejecuta pod outdated para comparar la versión del pod instalado con las actualizaciones nuevas. Si se detecta una versión nueva, ejecuta pod update para actualizar Podfile y, luego, instala el SDK más reciente. Para obtener más detalles, consulta la Guía de CocoaPods.
Haz doble clic en el archivo map-with-marker.xcworkspace del proyecto para abrirlo en Xcode. Debes usar el archivo .xcworkspace para abrir el proyecto.
Obtén una clave de API y habilita las API necesarias
Si deseas completar este instructivo, necesitas una clave de API de Google autorizada para usar el SDK de Maps para iOS. Haz clic en el siguiente botón para obtener una clave y activar la API.
Agrega tu clave de API a AppDelegate.swift de la siguiente manera:
Ten en cuenta que se agregó la siguiente sentencia de importación al archivo:
importGoogleMaps
Edita la siguiente línea en tu método application(_:didFinishLaunchingWithOptions:) y reemplaza YOUR_API_KEY por tu clave de API:
GMSServices.provideAPIKey("YOUR_API_KEY")
Compila y ejecuta tu app
Conecta un dispositivo iOS a tu computadora o selecciona un simulador en el menú de esquemas de Xcode.
Si usas un dispositivo, asegúrate de que los servicios de ubicación estén habilitados.
Si usas un simulador, selecciona una ubicación en el menú Funciones.
En Xcode, haz clic en la opción del menú Product/Run (o en el ícono del botón de reproducción).
Xcode compila la app y, luego, la ejecuta en el dispositivo o en el simulador.
Deberías ver un mapa con un marcador centrado en Sídney, en la costa este de Australia, similar al de la imagen que se muestra en esta página.
Solución de problemas:
Si no ves un mapa, verifica si obtuviste una clave de API y la agregaste a la app, como se describió anteriormente. Consulta la consola de depuración de Xcode para ver si hay mensajes de error sobre la clave de API.
Si restringiste la clave de API por el identificador de paquete de iOS, edita la
clave para agregar el identificador de paquete de la app:
com.google.examples.map-with-marker.
Asegúrate de tener una buena conexión de Wi-Fi o GPS.
Crea un mapa y establécelo como vista en viewDidLoad().
Swift
// Create a GMSCameraPosition that tells the map to display the// coordinate -33.86,151.20 at zoom level 6.letcamera=GMSCameraPosition.camera(withLatitude:-33.86,longitude:151.20,zoom:6.0)letmapView=GMSMapView.map(withFrame:CGRect.zero,camera:camera)view=mapView
Objective-C
// Create a GMSCameraPosition that tells the map to display the// coordinate -33.86,151.20 at zoom level 6.GMSCameraPosition*camera=[GMSCameraPositioncameraWithLatitude:-33.86longitude:151.20zoom:6.0];GMSMapView*mapView=[[GMSMapViewalloc]initWithFrame:CGRectZerocamera:camera];self.view=mapView;
Agrega un marcador al mapa en viewDidLoad().
Swift
// Creates a marker in the center of the map.letmarker=GMSMarker()marker.position=CLLocationCoordinate2D(latitude:-33.86,longitude:151.20)marker.title="Sydney"marker.snippet="Australia"marker.map=mapView
Objective-C
// Creates a marker in the center of the map.GMSMarker*marker=[[GMSMarkeralloc]init];marker.position=CLLocationCoordinate2DMake(-33.86,151.20);marker.title=@"Sydney";marker.snippet=@"Australia";marker.map=mapView;
De forma predeterminada, el SDK de Maps para iOS muestra el contenido de la ventana de información cuando el usuario presiona un marcador. Si deseas utilizar el comportamiento predeterminado, no es necesario agregar un objeto de escucha de clics para el marcador.
¡Felicitaciones! Compilaste una app para iOS que muestra un mapa de Google Maps con un marcador para indicar una ubicación determinada. También aprendiste a usar el
SDK de Maps para iOS.
[null,null,["Última actualización: 2025-08-31 (UTC)"],[[["\u003cp\u003eThis tutorial provides a step-by-step guide for adding a Google map with a marker to your iOS app, targeting beginners and intermediate Swift/Objective-C developers.\u003c/p\u003e\n"],["\u003cp\u003eThe tutorial covers installation using Swift Package Manager or CocoaPods, obtaining and implementing an API key, and building/running the app.\u003c/p\u003e\n"],["\u003cp\u003eCode examples in Swift and Objective-C demonstrate creating a map view, setting camera position, and adding a marker with title and snippet.\u003c/p\u003e\n"],["\u003cp\u003eTroubleshooting tips address common issues like missing maps, API key errors, and connectivity problems.\u003c/p\u003e\n"],["\u003cp\u003eUsers are encouraged to further explore the map object and marker functionalities within the Maps SDK for iOS.\u003c/p\u003e\n"]]],["This tutorial guides you to add a Google map with a marker to an iOS app. First, you'll download the sample code, then install the Maps SDK using Swift Package Manager or CocoaPods. Next, you'll acquire a Google API key and add it to your `AppDelegate.swift`. You'll then build and run the app on a device or simulator. The code creates a map centered on coordinates -33.86, 151.20 (Sydney) at zoom level 6, and adds a marker at that location with \"Sydney\" as the title and \"Australia\" as the snippet.\n"],null,["Add a Map with a Marker \n\nThis tutorial shows how to add a Google map with a marker to your iOS\napp. It suits people with a beginner or intermediate knowledge of Swift or\nObjective-C along with general knowledge of Xcode. For an advanced guide to\ncreating maps, read the developers' guide.\n\nYou'll create the following map using this tutorial. The marker is positioned at\nSydney, Australia.\n\nGet the code\n\nClone or download the\n[Google Maps iOS samples repository](https://github.com/googlemaps-samples/maps-sdk-for-ios-samples) on GitHub.\n\nAlternatively, click the following button to download the source code:\n\n[Give me the code](https://github.com/googlemaps-samples/maps-sdk-for-ios-samples/archive/main.zip)\n\n\nSwift \n\n```swift\nimport UIKit\nimport GoogleMaps\n\nclass ViewController: UIViewController {\n\n override func viewDidLoad() {\n super.viewDidLoad()\n // Do any additional setup after loading the view.\n // Create a GMSCameraPosition that tells the map to display the\n // coordinate -33.86,151.20 at zoom level 6.\n let camera = GMSCameraPosition.camera(withLatitude: -33.86, longitude: 151.20, zoom: 6.0)\n let mapView = GMSMapView.map(withFrame: self.view.frame, camera: camera)\n self.view.addSubview(mapView)\n\n // Creates a marker in the center of the map.\n let marker = GMSMarker()\n marker.position = CLLocationCoordinate2D(latitude: -33.86, longitude: 151.20)\n marker.title = \"Sydney\"\n marker.snippet = \"Australia\"\n marker.map = mapView\n }\n}\n \n```\n\nObjective-C \n\n```objective-c\n#import \"ViewController.h\"\n#import \u003cGoogleMaps/GoogleMaps.h\u003e\n\n@interface ViewController ()\n\n@end\n\n@implementation ViewController\n\n- (void)viewDidLoad {\n [super viewDidLoad];\n // Do any additional setup after loading the view.\n // Create a GMSCameraPosition that tells the map to display the\n // coordinate -33.86,151.20 at zoom level 6.\n GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.86\n longitude:151.20\n zoom:6];\n GMSMapView *mapView = [GMSMapView mapWithFrame:self.view.frame camera:camera];\n mapView.myLocationEnabled = YES;\n [self.view addSubview:mapView];\n\n // Creates a marker in the center of the map.\n GMSMarker *marker = [[GMSMarker alloc] init];\n marker.position = CLLocationCoordinate2DMake(-33.86, 151.20);\n marker.title = @\"Sydney\";\n marker.snippet = @\"Australia\";\n marker.map = mapView;\n}\n\n@end\n \n```\n\n\u003cbr /\u003e\n\nGet started \n\nSwift Package Manager\n\nThe Maps SDK for iOS can be installed using [Swift Package Manager](https://developer.apple.com/documentation/xcode/swift-packages).\n\n1. Remove any existing Maps SDK for iOS dependencies.\n2. Open a terminal window and navigate to the `tutorials/map-with-marker` directory.\n3. Close your Xcode workspace and run the following commands: \n\n ```swift\n sudo gem install cocoapods-deintegrate cocoapods-clean\n pod deintegrate\n pod cache clean --all\n rm Podfile\n rm map-with-marker.xcworkspace\n ```\n4. Open your Xcode project and delete the podfile.\n5. Go to **File \\\u003e Add Package Dependencies**.\n6. Enter \u003chttps://github.com/googlemaps/ios-maps-sdk\u003e as the URL, press **Enter** to pull in the package, and click **Add Package**.\n7. You may need to reset your package cache using **File \\\u003e Packages \\\u003e Reset Package Cache**.\n\nUse CocoaPods\n\n1. Download and install [Xcode](https://developer.apple.com/xcode/) **version 16.0** or later.\n2. If you don't already have [CocoaPods](https://guides.cocoapods.org/using/getting-started.html), install it on macOS by running the following command from the terminal: \n\n ```text\n sudo gem install cocoapods\n ```\n3. Navigate to the `tutorials/map-with-marker` directory.\n4. Run the `pod install` command. This will install the [Maps SDK](https://developers.google.com/maps/documentation/ios-sdk) specified in the `Podfile`, along with any dependencies.\n5. Run `pod outdated` to compare the installed pod version with any new updates. If a new version is detected, run `pod update` to update the `Podfile` and install the latest SDK. For more details, see the [CocoaPods Guide](https://guides.cocoapods.org/using/pod-install-vs-update.html).\n6. Open (double-click) the project's **map-with-marker.xcworkspace** file to open it in Xcode. You must use the `.xcworkspace` file to open the project.\n\nGet an API key and enable the necessary APIs\n\nTo complete this tutorial, you need a Google API key that's authorized to\nuse the Maps SDK for iOS. Click the following button to get\na key and activate the API.\n[Get Started](https://cloud.google.com/maps-platform/#get-started)\n\nFor more details, see\n[Get an API key](/maps/documentation/ios-sdk/get-api-key).\n\nAdd the API key to your application\n\nAdd your API key to your `AppDelegate.swift` as follows:\n\n1. Note that following import statement has been added to the file: \n\n ```python\n import GoogleMaps\n ```\n2. Edit the following line in your `application(_:didFinishLaunchingWithOptions:)` method, replacing *YOUR_API_KEY* with your API key: \n\n ```scdoc\n GMSServices.provideAPIKey(\"YOUR_API_KEY\")\n ```\n\n| **Note:** The [sample code](https://github.com/googlemaps-samples/maps-sdk-for-ios-samples) for the completed tutorial is configured to run as a Swift Xcode project but includes Swift and Objective-C examples.\n\nBuild and run your app\n\n1. Connect an iOS device to your computer, or select a [simulator](https://developer.apple.com/library/content/documentation/IDEs/Conceptual/iOS_Simulator_Guide/Introduction/Introduction.html) from the Xcode scheme menu.\n2. If you're using a device, make sure that location services are enabled. If you're using a simulator, select a location from the **Features** menu.\n3. In Xcode, click the **Product/Run** menu option (or the play button icon).\n - Xcode builds the app, and then runs the app on the device or on the simulator.\n - You should see a map with a marker centered on Sydney on the east coast of Australia, similar to the image on this page.\n\nTroubleshooting:\n\n- If you don't see a map, check that you've obtained an API key and added it to the app, [as described previously](#add_api_key). Check Xcode's debugging console for error messages about the API key.\n- If you have restricted the API key by the iOS bundle identifier, edit the key to add the bundle identifier for the app: `com.google.examples.map-with-marker`.\n- Make sure that you have a good Wifi or GPS connection.\n- Use the [Xcode debugging tools](https://developer.apple.com/library/content/documentation/DeveloperTools/Conceptual/debugging_with_xcode/chapters/debugging_tools.html) to view logs and debug the app.\n\nUnderstand the code\n\n1. Create a map and set it as the view in `viewDidLoad()`. \n\n Swift \n\n ```swift\n // Create a GMSCameraPosition that tells the map to display the\n // coordinate -33.86,151.20 at zoom level 6.\n let camera = GMSCameraPosition.camera(withLatitude: -33.86, longitude: 151.20, zoom: 6.0)\n let mapView = GMSMapView.map(withFrame: CGRect.zero, camera: camera)\n view = mapView\n \n ```\n\n Objective-C \n\n ```objective-c\n // Create a GMSCameraPosition that tells the map to display the\n // coordinate -33.86,151.20 at zoom level 6.\n GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.86\n longitude:151.20\n zoom:6.0];\n GMSMapView *mapView = [[GMSMapView alloc] initWithFrame: CGRectZero camera:camera];\n self.view = mapView;\n \n ```\n2. Add a marker to the map in `viewDidLoad()`. \n\n Swift \n\n ```swift\n // Creates a marker in the center of the map.\n let marker = GMSMarker()\n marker.position = CLLocationCoordinate2D(latitude: -33.86, longitude: 151.20)\n marker.title = \"Sydney\"\n marker.snippet = \"Australia\"\n marker.map = mapView\n \n ```\n\n Objective-C \n\n ```objective-c\n // Creates a marker in the center of the map.\n GMSMarker *marker = [[GMSMarker alloc] init];\n marker.position = CLLocationCoordinate2DMake(-33.86, 151.20);\n marker.title = @\"Sydney\";\n marker.snippet = @\"Australia\";\n marker.map = mapView;\n \n ```\n\nBy default, the Maps SDK for iOS displays the content of the info\nwindow when the user taps a marker. There's no need to add a click listener for\nthe marker if you're happy to use the default behavior.\n\n**Congratulations!** You've built an iOS app that displays a Google map with a\nmarker to indicate a particular location. You've also learned how to use the [Maps SDK for iOS](/maps/documentation/ios-sdk).\n\nNext steps\n\nLearn more about the [map object](/maps/documentation/ios-sdk/map), and what you\ncan do with [markers](/maps/documentation/ios-sdk/marker)."]]