I'm getting an exception when I'm trying to add simple markers to a map.
The error is a little to cryptic for me to decode. Any ideas?
Here is the background:
Exception:
@com.google.gwt.maps.client.overlays.Marker::setMapImpl(Lcom/google/gwt/maps/client/MapImpl;)([JavaScript
object(34)]): Invalid value for property <map>: [object Object]
public class MapView extends Composite {
private final VerticalPanel verticalPanel;
private MapWidget mapWidget;
private List<Marker> markers;
public MapView() {
verticalPanel = new VerticalPanel();
markers = new ArrayList<Marker>();
initWidget(verticalPanel);
draw();
}
private void draw() {
verticalPanel.clear();
MapOptions opts = MapOptions.newInstance();
opts.setZoom(4);
opts.setCenter(App.createWashingtonMonumentLatLng());
opts.setMapTypeId(MapTypeId.ROADMAP);
mapWidget = new MapWidget(opts);
verticalPanel.add(mapWidget);
mapWidget.setSize("600px", "400px");
}
// Calling addMarker after the map has loaded by clicking on another UI
element
private void addMarker(final Node node) {
if (node.getCoordinate() == null) return;
LatLng center = node.getCoordinate().toLatLng();
MarkerOptions options = MarkerOptions.newInstance();
options.setPosition(center);
options.setTitle(node.getName());
final Marker marker = Marker.newInstance(options);
marker.setMap(mapWidget); // blows up here
marker.addClickHandler(new ClickMapHandler() {
@Override
public void onEvent(ClickMapEvent event) {
notifyListeners(new NodeChangeEvent(node));
}
});
markers.add(marker);
}
}
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