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RxJava è una libreria di programmazione reattiva per comporre programmi asincroni e basati su eventi.
usando sequenze osservabili.
La libreria Maps Rx
consente di ricevere sequenze osservabili per eventi asincroni su Maps SDK per Android
e Places SDK per Android per poter sfruttare il ricco set di funzioni RxJava.
Installazione
Per installare la libreria Maps Rx nel tuo progetto Google Maps:
Aggiungi le seguenti dipendenze al file build.gradle a livello di modulo:
dependencies {// RxJava bindings for the Maps SDKimplementation("com.google.maps.android:maps-rx:1.0.0")// RxJava bindings for the Places SDKimplementation("com.google.maps.android:places-rx:1.0.0")// It is recommended to also include the latest Maps SDK, Places SDK and RxJava so you// have the latest features and bug fixes.implementation("com.google.android.gms:play-services-maps:19.2.0")implementation("com.google.android.libraries.places:places:4.4.1")implementation("io.reactivex.rxjava3:rxjava:3.1.11")
Ricrea il progetto in Android Studio per sincronizzare queste modifiche.
Esempio di utilizzo
Ricevi una funzione osservabile per gli eventi di clic su un indicatore come funzione di estensione sull'oggetto GoogleMap:
googleMap.markerClickEvents().subscribe { marker ->
Log.d("MapsRx", "Marker ${marker.title} was clicked")}
L'esempio successivo mostra come utilizzare l'operatore RxJava, merge, per combinare
Vari eventi della videocamera in un singolo stream osservabile:
Observable.merge(googleMap.cameraIdleEvents(),googleMap.cameraMoveEvents(),googleMap.cameraMoveCanceledEvents(),googleMap.cameraMoveStartedEvents()).subscribe {// Notified when any camera event occurs}
[null,null,["Ultimo aggiornamento 2025-08-31 UTC."],[[["\u003cp\u003eThe Maps Rx library enables the use of RxJava with the Maps SDK and Places SDK for Android to handle asynchronous events.\u003c/p\u003e\n"],["\u003cp\u003eIt provides observable sequences for events like marker clicks and camera movements, allowing developers to leverage RxJava features.\u003c/p\u003e\n"],["\u003cp\u003eYou can install the library by adding specific dependencies to your \u003ccode\u003ebuild.gradle\u003c/code\u003e file and rebuilding your project.\u003c/p\u003e\n"],["\u003cp\u003eThe library offers extension functions and operators to simplify the integration of RxJava with Google Maps functionality.\u003c/p\u003e\n"]]],["The Maps Rx library, designed for use with RxJava, allows developers to receive observable sequences for asynchronous events on the Maps SDK and Places SDK for Android. To install, add dependencies for `maps-rx`, `places-rx`, and the latest `Maps SDK`, `Places SDK`, and `RxJava` to the `build.gradle` file, then rebuild the project. Developers can subscribe to events, like marker clicks, using extension functions. The library also supports merging multiple event types, such as various camera events, into a single observable stream using RxJava operators.\n"],null,["RxJava is a reactive programming library for composing asynchronous and event-based programs by\nusing observable sequences.\n\nThe [Maps Rx library](https://github.com/googlemaps/android-maps-rx)\nlets you receive observable sequences for asynchronus events on the Maps SDK for Android\nand Places SDK for Android so you can take advantage of the rich set of RxJava features.\n\nInstallation **Note:** See the [Maps Rx library](https://github.com/googlemaps/android-maps-rx) documentation on GitHub for the latest system requirements and installation instructions.\n\nTo install the Maps Rx library in your Google Maps project:\n\n1. Add the following dependencies to your module-level `build.gradle` file:\n\n ```yaml\n dependencies {\n // RxJava bindings for the Maps SDK\n implementation(\"com.google.maps.android:maps-rx:1.0.0\")\n\n // RxJava bindings for the Places SDK\n implementation(\"com.google.maps.android:places-rx:1.0.0\")\n\n // It is recommended to also include the latest Maps SDK, Places SDK and RxJava so you\n // have the latest features and bug fixes.\n implementation(\"com.google.android.gms:play-services-maps:19.2.0\")\n implementation(\"com.google.android.libraries.places:places:4.4.1\")\n implementation(\"io.reactivex.rxjava3:rxjava:3.1.11\")\n ```\n2. Rebuild your project in Android Studio to sync these changes.\n\nExample Usage\n\nReceive an Observable for marker click events as an extension function on the GoogleMap object: \n\n```yaml\ngoogleMap.markerClickEvents()\n .subscribe { marker -\u003e\n Log.d(\"MapsRx\", \"Marker ${marker.title} was clicked\")\n }\n```\n\nThe next example shows you how you can use the RxJava operator, `merge`, to combine\nvarious camera events into a single Observable stream: \n\n```yaml\nObservable.merge(\n googleMap.cameraIdleEvents(),\n googleMap.cameraMoveEvents(),\n googleMap.cameraMoveCanceledEvents(),\n googleMap.cameraMoveStartedEvents()\n).subscribe {\n // Notified when any camera event occurs\n}\n```\n\nWhat's next\n\n- View the [Maps Rx library](https://github.com/googlemaps/android-maps-rx) GitHub project page.\n- View the [Maps Rx library API reference](https://googlemaps.github.io/android-maps-rx/)."]]
