Cómo controlar eventos
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En este ejemplo, te indicamos cómo escuchar y administrar algunos eventos en el mapa.
Para obtener más información, consulta la documentación.
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 SDK para Android.
Consulta el código
Kotlin
class EventsDemoActivity : AppCompatActivity(), OnMapClickListener,
OnMapLongClickListener, OnCameraIdleListener, OnMapReadyCallback {
private lateinit var tapTextView: TextView
private lateinit var cameraTextView: TextView
private lateinit var map: GoogleMap
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.events_demo)
tapTextView = findViewById(R.id.tap_text)
cameraTextView = findViewById(R.id.camera_text)
val mapFragment = supportFragmentManager.findFragmentById(R.id.map) as SupportMapFragment?
mapFragment?.getMapAsync(this)
}
override fun onMapReady(googleMap: GoogleMap) {
// return early if the map was not initialised properly
map = googleMap
map.setOnMapClickListener(this)
map.setOnMapLongClickListener(this)
map.setOnCameraIdleListener(this)
}
override fun onMapClick(point: LatLng) {
tapTextView.text = "tapped, point=$point"
}
override fun onMapLongClick(point: LatLng) {
tapTextView.text = "long pressed, point=$point"
}
override fun onCameraIdle() {
if (!::map.isInitialized) return
cameraTextView.text = map.cameraPosition.toString()
}
}
Java
public class EventsDemoActivity extends AppCompatActivity
implements OnMapClickListener, OnMapLongClickListener, OnCameraIdleListener,
OnMapReadyCallback {
private TextView tapTextView;
private TextView cameraTextView;
private GoogleMap map;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.events_demo);
tapTextView = findViewById(R.id.tap_text);
cameraTextView = findViewById(R.id.camera_text);
SupportMapFragment mapFragment =
(SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
@Override
public void onMapReady(GoogleMap map) {
this.map = map;
this.map.setOnMapClickListener(this);
this.map.setOnMapLongClickListener(this);
this.map.setOnCameraIdleListener(this);
}
@Override
public void onMapClick(LatLng point) {
tapTextView.setText("tapped, point=" + point);
}
@Override
public void onMapLongClick(LatLng point) {
tapTextView.setText("long pressed, point=" + point);
}
@Override
public void onCameraIdle() {
cameraTextView.setText(map.getCameraPosition().toString());
}
}
Clona y ejecuta las muestras
Se requiere Git para ejecutar esta muestra a nivel local. Con el siguiente comando, se clona el repositorio de la aplicación de ejemplo.
git clone git@github.com:googlemaps-samples/android-samples.git
Importa el proyecto de muestra en Android Studio:
- En Android Studio, selecciona File > New > Import Project.
Ve a la ubicación en la que guardaste el repositorio y selecciona el directorio del proyecto para Kotlin o Java:
- Kotlin:
PATH-REPO/android-samples/ApiDemos/kotlin
- Java:
PATH-REPO/android-samples/ApiDemos/java
- Selecciona Open. Android Studio creará tu proyecto con la herramienta de compilación Gradle.
- Crea un archivo
secrets.properties
en blanco en el mismo directorio en el que se encuentra el archivo local.properties
de tu proyecto. Para obtener más información, consulta Agrega tu clave de API al proyecto.
Agrega la siguiente cadena a secrets.properties
reemplazando YOUR_API_KEY con el valor de tu clave de API:
MAPS_API_KEY=YOUR_API_KEY
- Ejecuta la app.
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: 2024-08-13 (UTC)
[null,null,["Última actualización: 2024-08-13 (UTC)"],[[["\u003cp\u003eThis example demonstrates how to listen for and respond to map events like clicks, long presses, and camera movements in your Android application.\u003c/p\u003e\n"],["\u003cp\u003eCode samples are provided in both Kotlin and Java, illustrating the implementation of event handling for map interactions.\u003c/p\u003e\n"],["\u003cp\u003eTo run the sample code locally, you'll need to clone the repository, import the project into Android Studio, and configure your development environment with an API key.\u003c/p\u003e\n"],["\u003cp\u003eThe sample code showcases how to register event listeners for clicks, long presses, and camera idleness, allowing you to trigger actions based on user interactions with the map.\u003c/p\u003e\n"]]],[],null,["This example shows how to listen to and handle some events on the map.\n\nFor more information, see the [documentation.](/maps/documentation/android-sdk/events)\n\nGet started\n\nBefore you can try the sample code, you must configure your development environment.\nFor more information, see [Maps SDK for Android code samples](/maps/documentation/android-sdk/examples).\n\nView the code\n\n\nKotlin \n\n```kotlin\nclass EventsDemoActivity : SamplesBaseActivity(), OnMapClickListener,\n OnMapLongClickListener, OnCameraIdleListener, OnMapReadyCallback {\n\n private lateinit var tapTextView: TextView\n private lateinit var cameraTextView: TextView\n private lateinit var map: GoogleMap\n\n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n setContentView(R.layout.events_demo)\n tapTextView = findViewById(R.id.tap_text)\n cameraTextView = findViewById(R.id.camera_text)\n val mapFragment = supportFragmentManager.findFragmentById(R.id.map) as SupportMapFragment?\n mapFragment?.getMapAsync(this)\n applyInsets(findViewById\u003cView?\u003e(R.id.map_container))\n }\n\n override fun onMapReady(googleMap: GoogleMap) {\n // return early if the map was not initialised properly\n map = googleMap\n map.setOnMapClickListener(this)\n map.setOnMapLongClickListener(this)\n map.setOnCameraIdleListener(this)\n }\n\n override fun onMapClick(point: LatLng) {\n tapTextView.text = \"tapped, point=$point\"\n }\n\n override fun onMapLongClick(point: LatLng) {\n tapTextView.text = \"long pressed, point=$point\"\n }\n\n override fun onCameraIdle() {\n if (!::map.isInitialized) return\n cameraTextView.text = map.cameraPosition.toString()\n }\n}https://github.com/googlemaps-samples/android-samples/blob/73ac16ffca01a2ca6fedd1988c713138ec000082/ApiDemos/project/kotlin-app/src/main/java/com/example/kotlindemos/EventsDemoActivity.kt#L31-L68\n\n \n```\n\nJava \n\n```java\npublic class EventsDemoActivity extends SamplesBaseActivity\n implements OnMapClickListener, OnMapLongClickListener, OnCameraIdleListener,\n OnMapReadyCallback {\n\n private TextView tapTextView;\n private TextView cameraTextView;\n private GoogleMap map;\n\n @Override\n protected void onCreate(Bundle savedInstanceState) {\n super.onCreate(savedInstanceState);\n setContentView(com.example.common_ui.R.layout.events_demo);\n\n tapTextView = findViewById(com.example.common_ui.R.id.tap_text);\n cameraTextView = findViewById(com.example.common_ui.R.id.camera_text);\n\n SupportMapFragment mapFragment =\n (SupportMapFragment) getSupportFragmentManager().findFragmentById(com.example.common_ui.R.id.map);\n mapFragment.getMapAsync(this);\n applyInsets(findViewById(com.example.common_ui.R.id.map_container));\n }\n\n @Override\n public void onMapReady(GoogleMap map) {\n this.map = map;\n this.map.setOnMapClickListener(this);\n this.map.setOnMapLongClickListener(this);\n this.map.setOnCameraIdleListener(this);\n }\n\n @Override\n public void onMapClick(LatLng point) {\n tapTextView.setText(\"tapped, point=\" + point);\n }\n\n @Override\n public void onMapLongClick(LatLng point) {\n tapTextView.setText(\"long pressed, point=\" + point);\n }\n\n @Override\n public void onCameraIdle() {\n cameraTextView.setText(map.getCameraPosition().toString());\n }\n}https://github.com/googlemaps-samples/android-samples/blob/73ac16ffca01a2ca6fedd1988c713138ec000082/ApiDemos/project/java-app/src/main/java/com/example/mapdemo/EventsDemoActivity.java#L35-L79\n\n \n```\n\n\u003cbr /\u003e\n\nClone and run the samples\n\nGit is required to run this sample locally. The following command clones the sample\napplication repository. \n\n```\ngit clone git@github.com:googlemaps-samples/android-samples.git\n```\n\nImport the sample project into Android Studio:\n\n1. In Android Studio, select **File \\\u003e New \\\u003e Import Project**.\n2. Go to the location where you saved the repository and select the project directory for\n Kotlin or Java:\n\n - **Kotlin** : \u003cvar translate=\"no\"\u003ePATH-REPO\u003c/var\u003e`/android-samples/ApiDemos/kotlin`\n - **Java** : \u003cvar translate=\"no\"\u003ePATH-REPO\u003c/var\u003e`/android-samples/ApiDemos/java`\n3. Select **Open**. Android Studio builds your project, using the Gradle build tool.\n4. Create a blank `secrets.properties` file in the same directory as your project's `local.properties` file. For more information about this file, see [Add your API key to the project](/maps/documentation/android-sdk/config#step_3_add_your_api_key_to_the_project).\n5. [Get an API key](/maps/documentation/android-sdk/get-api-key) from your project with the [Maps SDK for Android enabled](/maps/documentation/android-sdk/cloud-setup#enabling-apis).\n6. Add the following string to `secrets.properties`, replacing **YOUR_API_KEY** with the value of\n your API key:\n\n ```scdoc\n MAPS_API_KEY=YOUR_API_KEY\n ```\n7. Run the app."]]