Currency Text Input Formatter

Currency Text Input Formatter for Flutter. https://pub.dev/packages/currency_text_input_formatter

Installation

Add pubspec.yaml

dependencies:
  currency_text_input_formatter: ^2.2.9

Solving Intl package conflict

Add this code end of pubspec.yaml.

dependency_overrides:
  intl: your intl package version

Usage

Basic

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

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Welcome to Flutter',
      home: Scaffold(
        appBar: AppBar(
          title: Text('Welcome to Flutter'),
        ),
        body: Center(
          child: TextField(
            inputFormatters: [CurrencyTextInputFormatter.currency()],
            // inputFormatters: [CurrencyTextInputFormatter.simpleCurrency()], < for simple
            // inputFormatters: [CurrencyTextInputFormatter()], < for basic
            keyboardType: TextInputType.number,
          ),
        ),
      ),
    );
  }
}

With initialValue

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

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Welcome to Flutter',
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Welcome to Flutter'),
        ),
        body: Center(
          child: MyFormField(),
        ),
      ),
    );
  }
}

class MyFormField extends StatefulWidget {
  const MyFormField({ super.key });

  @override
  State<YellowBird> createState() => _MyFormFieldState();
}

class _MyFormFieldState extends State<MyFormField> {
  final CurrencyTextInputFormatter _formatter = CurrencyTextInputFormatter.currency();

  @override
  Widget build(BuildContext context) {
    return TextFormField(
      initialValue: _formatter.formatString('2000'),
      inputFormatters: <TextInputFormatter>[_formatter],
      keyboardType: TextInputType.number,
    );
  }
}

Custom Options

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

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Welcome to Flutter',
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Welcome to Flutter'),
        ),
        body: Center(
          child: TextField(
            inputFormatters: <TextInputFormatter>[
              CurrencyTextInputFormatter.currency(
                locale: 'ko',
                decimalDigits: 0,
                symbol: 'KRW(원) ',
              ),
            ],
            keyboardType: TextInputType.number,
          ),
        ),
      ),
    );
  }
}

With built-in methods

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

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

class MyApp extends StatelessWidget {

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Welcome to Flutter',
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Welcome to Flutter'),
        ),
        body: Center(
          child: MyFormField(),
        ),
      ),
    );
  }
}

class MyFormField extends StatefulWidget {
  const MyFormField({ super.key });

  @override
  State<YellowBird> createState() => _MyFormFieldState();
}

class _MyFormFieldState extends State<MyFormField> {
  final CurrencyTextInputFormatter _formatter = CurrencyTextInputFormatter.currency();

  @override
  Widget build(BuildContext context) {
    // Built-in Methods
    print(formatter.getFormattedValue()); // $ 2,000
    print(formatter.getUnformattedValue()); // 2000.00
    print(formatter.formatString('2000')); // $ 2,000
    print(formatter.formatDouble('20.00')); // $ 20

    return TextFormField(
      inputFormatters: <TextInputFormatter>[_formatter],
      keyboardType: TextInputType.number,
    );
  }
}

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Maintainer

• Jehun Seem

License

MIT