Android Google Maps v2 - Add object to marker

Question

How can we add an object to a marker in the new Google Maps Android API v2? So if we click on the InfoWindow, we can do something with the obje

Answer 1

As of Play Services v9.4.0, you can now set any object directly upon a marker!

To save the data:

Marker marker = getMap().addMarker(new MarkerOptions()
        .position(lat, lng)
        .title(spot.getName());

CustomObject myData = new CustomObject();
marker.setTag(myData);

Then to retreive your data:

CustomObject myRestoredData = (CustomObject)marker.getTag(myData);

For more infomration on marker data, here are the docs.

Answer 2

You can bind an object within the marker after adding it on the map like:

MarkerOptions markerOptions = new MarkerOptions().position(YOUR_LANG_LAT).title(YOUR_TITLE);
Marker addedMarker = mMap.addMarker(markerOptions);
CustomObject obj = new CustomObject();
addedMarker.setTag(obj);

Then on map click for instance you can retrieve your object as:

mMap.setOnMarkerClickListener(marker -> {
    CustomObject obj = (CustomObject) marker.getTag();

    return false;
});

Answer 3

Try android-maps-extensions its library where you can add object to mark by setdata method and retrieve data call method getData

Read more

Object getData() and setData(Object) on Marker, Circle, GroundOverlay, Polygon, Polyline or TileOverlay

from Gradle You may use any version of Google Play Services

dependencies {
    compile 'com.androidmapsextensions:android-maps-extensions:2.2.0'
    compile 'com.google.android.gms:play-services-maps:8.1.0'
}

Answer 4

Not really sure if this is the correct answer, but take a look at this blogpost I made about this problem:

Since Marker is final, it's this can easily be solved by linking the data with the Marker in a Map, for example HashMap<Marker, YourDataClass> or HashMap<Marker, String>

Here's a tutorial that explains all: http://bon-app-etit.blogspot.be/2012/12/add-informationobject-to-marker-in.html