https://pub.dev/documentation/poly_geofence_service/latest/poly_geofence_service/PolyGeofenceService/addLocationChangeListener.html
addLocationChangeListener method - PolyGeofenceService class - poly_geofence_service library - Dart...
API docs for the addLocationChangeListener method from the PolyGeofenceService class, for the Dart programming language.
service librarymethodclasspolygeofence