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:
You should ensure that you add the following dependency in your Flutter project.
dependencies: range_slider: "^0.0.1"
You should then run
flutter packages upgrade or update your packages in IntelliJ.
An example can be found in the
example folder. Check it out.