Flutter - FutureBuilder fires twice on hot reload

Question

In my flutter project when I start the project in the simulator everything works fine and the future builder only fires once, but when I do hot reload the FutureBuilder fires twice which causes an error any idea how to fix this?

  Future frameFuture()  async {
    var future1 = await AuthService.getUserDataFromFirestore();
    var future2 = await GeoService.getPosition();
    return [future1, future2];
  }

  @override
  void initState() {
    user = FirebaseAuth.instance.currentUser!;
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return FutureBuilder(
        future: frameFuture(),
        builder: (context, snap) {
          if (snap.connectionState == ConnectionState.done && snap.hasData) return HomePage();
          else return Container(
            color: Colors.black,
            child: Center(
              child: spinKit,
            ),
          );
        }
    );
  }

Answer 1

I solved the issue. I put the Future function in the initState and then used the variable in the FutureBuilder. I'm not sure why it works this way, but here's the code:

  var futures;

  Future frameFuture()  async {
    var future1 = await AuthService.getUserDataFromFirestore();
    var future2 = await GeoService.getPosition();
    return [future1, future2];
  }

  @override
  void initState() {
    user = FirebaseAuth.instance.currentUser!;
    super.initState();
    futures = frameFuture();
  }

  @override
  Widget build(BuildContext context) {
    return FutureBuilder(
        future: futures,
        builder: (context, snap) {
          if (snap.connectionState == ConnectionState.done && snap.hasData) return HomePage();
          else return Container(
            color: Colors.black,
            child: Center(
              child: spinKit,
            ),
          );
        }
    );
  }