Nilen Patel Inc.

Tutorial and code of Height Slider in Flutter. Copy and paste the below code as per your requirements.

height_slider: ^1.3.2

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

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

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Height Slider',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(
        title: 'Height Slider',
      ),
    );
  }
}

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

  final String title;

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

class _MyHomePageState extends State<MyHomePage> {
  int height = 170;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Center(child: Text(widget.title),),
      ),
      body: Center(
        child: HeightSlider(
          height: height,
          onChange: (val) => setState(() => height = val),
          unit: 'cm', // optional
        ),
      ),
    );
  }
}