flutter_spinbox_fork 0.3.1+2

SpinBox is a numeric input widget with an input field for entering a specific value, and spin buttons for quick, convenient, and accurate value adjustments.

example/lib/main.dart

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_spinbox_fork/cupertino.dart';

void main() => runApp(
      CupertinoApp(
        debugShowCheckedModeBanner: false,
        home: CupertinoPageScaffold(
          navigationBar: CupertinoNavigationBar(
            middle: Text('CupertinoSpinBox for Flutter'),
          ),
          child: CupertinoTabScaffold(
            tabBar: CupertinoTabBar(
              items: const <BottomNavigationBarItem>[
                BottomNavigationBarItem(
                  icon: Icon(CupertinoIcons.ellipsis),
                  label: 'Horizontal',
                ),
                BottomNavigationBarItem(
                  icon: Icon(CupertinoIcons.ellipsis),
                  label: 'Vertical',
                ),
              ],
            ),
            tabBuilder: (BuildContext context, int index) =>
                index == 0 ? HorizontalSpinBoxPage() : VerticalSpinBoxPage(),
          ),
        ),
      ),
    );

class HorizontalSpinBoxPage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    final caption = TextStyle(fontWeight: FontWeight.bold);
    return GestureDetector(
      onTap: () => FocusScope.of(context).unfocus(),
      child: CupertinoScrollbar(
        child: ListView(
          children: [
            Padding(
              padding: const EdgeInsets.symmetric(horizontal: 16),
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Padding(
                    child: Text('Basic', style: caption),
                    padding: const EdgeInsets.only(left: 16, top: 12),
                  ),
                  CupertinoSpinBox(
                    value: 10,
                    numOfDecimals: 1,
                  ),
                ],
              ),
            ),
            Padding(
              padding: const EdgeInsets.symmetric(horizontal: 16),
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Padding(
                    child: Text('Decimals', style: caption),
                    padding: const EdgeInsets.only(left: 16),
                  ),
                  CupertinoSpinBox(
                    min: 0.0, max: 999999999.0, value: 999,numOfDecimals: 3,
                  )
                ],
              ),
            ),
            Padding(
              padding: const EdgeInsets.symmetric(horizontal: 16),
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Padding(
                    child: Text('Accelerated', style: caption),
                    padding: const EdgeInsets.only(left: 16),
                  ),
                  CupertinoSpinBox(
                    min: -10.0,
                    max: 10000.0,
                    value: 0.25,
                    numOfDecimals: 3,
                  ),
                ],
              ),
            ),
            Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Padding(
                  child: Text('Decorated', style: caption),
                  padding: const EdgeInsets.only(left: 16, top: 16),
                ),
                CupertinoSpinBox(
                  value: 50,
                  prefix: Text('prefix'),
                  suffix: Text('suffix'),
                  decoration: const BoxDecoration(
                    border: Border.symmetric(
                      vertical: BorderSide(
                        width: 0,
                        color: CupertinoColors.inactiveGray,
                      ),
                    ),
                  ),
                ),
              ],
            ),
          ],
        ),
      ),
    );
  }
}

class VerticalSpinBoxPage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return CupertinoScrollbar(
      child: Center(
        child: ListView(
          shrinkWrap: true,
          children: [
            Center(
              child: Container(
                width: 128,
                child: CupertinoSpinBox(
                  min: -50,
                  max: 50,
                  value: 15,
                  spacing: 24,
                  direction: Axis.vertical,
                  textStyle: TextStyle(fontSize: 48),
                  incrementIcon: Icon(CupertinoIcons.up_arrow, size: 64),
                  decrementIcon: Icon(CupertinoIcons.down_arrow, size: 64),
                  padding: const EdgeInsets.all(24),
                  decoration: BoxDecoration(
                    color: CupertinoDynamicColor.withBrightness(
                      color: CupertinoColors.white,
                      darkColor: CupertinoColors.black,
                    ),
                    border: Border.all(
                      color: CupertinoDynamicColor.withBrightness(
                        color: Color(0x33000000),
                        darkColor: Color(0x33FFFFFF),
                      ),
                      style: BorderStyle.solid,
                      width: 0.0,
                    ),
                    borderRadius: BorderRadius.all(Radius.circular(5.0)),
                  ),
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }
}