simple_ruler_picker 0.0.3

A simple and customizable ruler picker widget for Flutter that enables users to pick values by scrolling through a ruler-like interface.

example/lib/main.dart

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

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

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Simple Ruler Picker',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const ExamplePage(),
    );
  }
}

class ExamplePage extends StatelessWidget {
  const ExamplePage({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: const Color(0xffF6F8FC),
      body: SafeArea(
        child: Column(
          children: [
            PickerCard(
              title: 'Your Height',
              height: 180,
              child: SimpleRulerPicker(
                height: 100,
                minValue: 0,
                maxValue: 250,
                initialValue: 180,
                onValueChanged: (value) {
                  debugPrint(value.toString());
                },
              ),
            ),
            PickerCard(
              title: 'Your Weight',
              height: 200,
              child: SimpleRulerPicker(
                height: 130,
                minValue: 50,
                maxValue: 300,
                initialValue: 100,
                selectedColor: Colors.blue,
                lineStroke: 3,
                longLineHeight: 50,
                shortLineHeight: 25,
                scaleItemWidth: 20,
                lineColor: Colors.grey,
                onValueChanged: (value) {
                  debugPrint(value.toString());
                },
              ),
            ),
          ],
        ),
      ),
    );
  }
}

class PickerCard extends StatelessWidget {
  const PickerCard({
    super.key,
    required this.title,
    required this.height,
    required this.child,
  });

  final String title;
  final double height;
  final Widget child;

  @override
  Widget build(BuildContext context) {
    return Container(
      height: height,
      margin: const EdgeInsets.all(16),
      padding: const EdgeInsets.all(16),
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(32),
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(
            title,
            style: const TextStyle(
              fontSize: 16,
              color: Colors.black,
              fontWeight: FontWeight.bold,
            ),
          ),
          child
        ],
      ),
    );
  }
}