import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const HomePage(),
    );
  }
}

class HomePage extends StatefulWidget {
  const HomePage({Key? key}) : super(key: key);

  @override
  State<StatefulWidget> createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  RangeValues _currentRangeValues = const RangeValues(40, 80);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(),
      endDrawer: GestureDetector(
        onHorizontalDragEnd: (e) {},
        child: Drawer(
          child: Column(
            children: [
              const SizedBox(height: 100),
              RangeSlider(
                values: _currentRangeValues,
                max: 100,
                labels: RangeLabels(
                  _currentRangeValues.start.round().toString(),
                  _currentRangeValues.end.round().toString(),
                ),
                onChanged: (RangeValues values) {
                  setState(() {
                    _currentRangeValues = values;
                  });
                },
              ),
            ],
          ),
        ),
      ),
    );
  }
}