An extension of the Flutter Material Slider
RangeSlider
An extension of the Flutter Material Slider to allow selection of a range of values via 2 thumbs.
Step by step explanation
A full explanation on how to build such Widget may be found on my blog:
Getting Started
You should ensure that you add the following dependency in your Flutter project.
dependencies:
flutter_range_slider: "^0.0.4"
You should then run flutter packages upgrade or update your packages in IntelliJ.
In your Dart code, to use it:
import 'package:flutter_range_slider/flutter_range_slider.dart';
Example
An example can be found in the example folder. Check it out.