How To Create Numeric Form Field Using Flutter Android App

Posted By Bajarangi soft , Posted On 29-10-2020

create a number input field with and up and down arrow button to increment and decrement its value.

Numeric Form Field

Step 1: We cannot directly remove the time stamp from Numeric Form Field but using the intl.dart package we can easily filter the date stamp from time stamp. So open your flutter project’s pubspec.yaml in code

dependencies:
  flutter:
    sdk: flutter
  number_inc_dec: ^0.6.6

Step 2: After done saving the pubspec.yaml file, Open your flutter project root folder in Command Prompt or Terminal and execute flutter pub get command.

flutter pub get

Step 3: Open your project’s main.dart file and import material.dart and number_inc_dec: ^0.6.6. dart package.

import 'package:number_inc_dec/number_inc_dec.dart';

Complete Code For Numeric Form Field In Flutter
main.dart

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

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        primarySwatch: Colors.blue,
        visualDensity: VisualDensity.adaptivePlatformDensity,
        textTheme: Theme.of(context).textTheme.apply(
          fontSizeFactor: 0.9,
          fontSizeDelta: 1.0,
        ),
      ),
      home: SafeArea(
        child: Scaffold(
          appBar: AppBar(
            backgroundColor: Colors.orange,
            title: Text('Number Input With Increment Decrement'),
          ),
          body: Center(
            child: ListView(
              padding: EdgeInsets.all(12),
              children: [
                Text('Default appearance:',style: TextStyle(fontSize: 12),),
                SizedBox(height: 10),
                NumberInput(),
                SizedBox(height: 10),
                Text('Prefabbed widget: RoundEdged Icons',style: TextStyle(fontSize: 12),),
                SizedBox(height: 10),
                NumberInputPrefabbed.roundedEdgeButtons(
                  controller: TextEditingController(),
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}

class NumberInput extends StatelessWidget {
  const NumberInput({
    Key key,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return NumberInputWithIncrementDecrement(
      controller: TextEditingController(),
    );
  }
}