Refresh markers on cluster manager

Question

while the user navigates the map, the app will get new locations for he to see. But the map is not refreshing with the new markers.

After receiving a JSON with the places, this method put them on the map.

private void setMarkers(JSONObject response) {

    mClusterManager.clearItems();

    try {
        JSONArray venues = response.getJSONArray("venues");

        for (int i = 0; i < venues.length(); i++) {
            Venue venue = new Gson().fromJson(venues.getJSONObject(i).toString(), Venue.class);
            MarkerItem marker = new MarkerItem(venue.getLat(), venue.getLng(), venue, R.drawable.pin_quente);
            mClusterManager.addItem(marker);
        }

    } catch (JSONException e) {
        e.printStackTrace();
    }
}

The first request put them ok, but the second do nothing.

Answer 1

Use:

mClusterManager.cluster();

After adding markers.

private void setMarkers(JSONObject response) {

    mClusterManager.clearItems();

    try {
        JSONArray venues = response.getJSONArray("venues");

        for (int i = 0; i < venues.length(); i++) {
            Venue venue = new Gson().fromJson(venues.getJSONObject(i).toString(), Venue.class);
            MarkerItem marker = new MarkerItem(venue.getLat(), venue.getLng(), venue, R.drawable.pin_quente);
            mClusterManager.addItem(marker);
        }

        mClusterManager.cluster(); 

    } catch (JSONException e) {
        e.printStackTrace();
    }
}