@Override
    public Map getExportedCustomDirectEventTypeConstants() {

        Map events = super.getExportedCustomDirectEventTypeConstants();

        events.put(ViroEvents.ON_EXIT_VIRO, MapBuilder.of("registrationName", ViroEvents.ON_EXIT_VIRO));

        return events;
    }
SceneNavigatorManager for building a {@link VRT3DSceneNavigator}
corresponding to the Viro3DSceneNavigator.js control.
android/viro_bridge/src/main/java/com/viromedia/bridge/component/VRT3DSceneNavigatorManager.java