import 'dart:async';

import 'package:flutter/material.dart';
import 'package:shared_preferences/shared_preferences.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});


  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  RangeValues currentRange = RangeValues(1, 16);


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


  void _loadSlider() async {
    final prefs = await SharedPreferences.getInstance();
    List<String> valuesString = [currentRange.start.round().toString(), currentRange.end.round().toString() ];
    setState(() {
      valuesString = (prefs.getStringList('sliderGain') ??
          [
            valuesString.toString()
          ]);
      print(valuesString);
    });