mask_formatter 0.0.1

mask_formatter #

Another pure dart package for masked text. Implemented as TextInputFormtter Seems to be composable and universal.

Getting Started #

There are two properties to pass into constuructor:

  1. mask (not named);
  2. escapeChar - if you need to change the default one ('_')

And useful method getEscapedString. TextController will return masked value So it's hand converter.

With this piece of code:

import 'package:mask_formatter/mask_formatter.dart';

class App extends StatefulWidget {
  AppState createState() => new AppState();

class AppState extends State<App> {
  final maskFormatter = MaskTextInputFormatter('+1 (___) ___-__-__');

  String inputValue = '';
  String unmaskedInputValue = '';
  _onTextChange(String s) {
    setState(() {
      inputValue = s;
      unmaskedInputValue = maskFormatter.getEscapedString(s);

  Widget build(BuildContext context) => 
      title: 'Flutter masked input',
      home: Scaffold(
        body: TextField(
          key: widget.testEnv.textFieldKey,
          onChanged: _onTextChange,
          inputFormatters: [
            decoration: InputDecoration(
              hintText: '+1 (___) ___-__-__'

You'll get quite good looking, functional and composable way to solve the issue (at least nicer than here).

Happy coding!

[0.0.1] - TODO: Add release date.

  • TODO: Describe initial release.

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:

  mask_formatter: ^0.0.1

2. Install it

You can install packages from the command line:

with pub:

$ pub get

with Flutter:

$ flutter pub get

Alternatively, your editor might support pub get or flutter pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:mask_formatter/mask_formatter.dart';
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The package version is not analyzed, because it does not support Dart 2. Until this is resolved, the package will receive a health and maintenance score of 0.

Analysis issues and suggestions

Support Dart 2 in pubspec.yaml.

The SDK constraint in pubspec.yaml doesn't allow the Dart 2.0.0 release. For information about upgrading it to be Dart 2 compatible, please see


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.0.0-dev.28.0 <2.0.0