Flutter nearby search with Streambuilder and increasing search radius if no results?

Question

When it comes to geo searches in Flutter, geoFlutterFire is the go to solution https://pub.dev/packages/geoflutterfire One issue with it is that it does not have a single query functionality only Stream (https://github.com/DarshanGowda0/GeoFlutterFire/issues/27).

In a regular Streambuilder, could I increase the radius once I have the first snapshot, and its empty by setting a radius variable, and disposing the stream, and then setting state?

Would I need to dispose the stream before calling setState? It is said here that if we remove a widget from the tree the stream cancels Flutter: Streambuilder - Closing of streams Would a setState remove the current widget and reload as a new Streambuilder?

Sg like

 Widget build(BuildContext context) {
int radius = 1;

    return StreamBuilder<List<DocumentSnapshot>>(
      stream: geoFlutterFireInstance.collection(collectionRef: globals.usersCollection)
      .within(
    center: GeoFirePoint(
      geolocatorPosition.latitude,
      geolocatorPosition.longitude,
    ),
    radius: radius,
    field: 'position',
    strictMode: true,
  );,
      builder: (
        BuildContext context,
        AsyncSnapshot<List<DocumentSnapshot>> asyncSnapshot,
      ) {
        if (asyncSnapshot.hasError) {
          return Center(child: Text(asyncSnapshot.error.toString()));
        } else {
          switch (asyncSnapshot.connectionState) {
            case ConnectionState.none:
            case ConnectionState.waiting:
            return Container(...),
            case ConnectionState.active:
             if (asyncSnapshot.data.length == 0 && radius <= 10) 
                  {radius++; setState(() {
          });} 

PS I found a recommendation to use StreamController at Flutter How to refresh StreamBuilder? will check that out