Flutter Slider Limit Min/Max

flutter_slider_limit.dart

// Flutter code sample for Slider

// ![A slider widget, consisting of 5 divisions and showing the default value
// indicator.](https://flutter.github.io/assets-for-api-docs/assets/material/slider.png)
//
// The Sliders value is part of the Stateful widget subclass to change the value
// setState was called.

// Docs: https://api.flutter.dev/flutter/material/Slider-class.html

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

/// This Widget is the main application widget.
class MyApp extends StatelessWidget {
  static const String _title = 'Flutter Code Sample';

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: _title,
      home: Scaffold(
        appBar: AppBar(title: const Text(_title)),
        body: MyStatefulWidget(),
      ),
    );
  }
}

class MyStatefulWidget extends StatefulWidget {
  MyStatefulWidget({Key key}) : super(key: key);

  @override
  _MyStatefulWidgetState createState() => _MyStatefulWidgetState();
}

class _MyStatefulWidgetState extends State<MyStatefulWidget> {
  double _currentSliderValue = 20;

  @override
  Widget build(BuildContext context) {
    return Slider(
      value: _currentSliderValue,
      min: 10,
      max: 90,
      label: _currentSliderValue.round().toString(),
      onChanged: (double value) {
        setState(() {
          _currentSliderValue = value;
        });
      },
    );
  }
}