Get value from SharedPreferences without future builder

Question

I need to get one stored value from shared preferences and put it into text widget. How can I do this without a future builder?

_currPage() async {
  SharedPreferences prefs = await SharedPreferences.getInstance();
  int page = prefs.getInt('currPage') ?? 0;
  return page;
}

class _AllTasksPageState extends State<AllTasksPage> {
  @override
  Widget build(BuildContext context) {
  ...
  Text(_currPage()); //not working
  ...
  }
}

Answer 1

  int page = 0;

  @override
  void initState() {
    super.initState();
    readData();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: Text('$page'),
      ),
    );
  }

  void readData() async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    if (prefs.getInt('currPage') == null)
      setState(() => page = 0);
    else
      setState(() => page = prefs.getInt('currPage')!);
  }