Flutters en_AU localizations give the wrong dateHelpText. Specifically, they inherit from MaterialLocalizationEn - which uses US style mm/dd/yyyy. That's not how things are done in Australia.
While the help text is incorrect, the underlying DateFormat locale uses the correct d/m/yyyy formatting. This confuses the user, because when they enter a date as specified by the help desk, the parsed DateTime result is incorrect.
Steps to Reproduce
- Run
flutter create bug.
- Follow the Internationalization guide to configure localizations
- Add flutter_localizations to pubspec
- Set the app's supported locale to en_AU
- Render the helpText.
Minimal Example
pubspec.yaml
name: dateformat
description: A new Flutter project.
publish_to: "none"
version: 1.0.0+1
environment:
sdk: ">=2.7.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
flutter_localizations:
sdk: flutter
dev_dependencies:
flutter_test:
sdk: flutter
flutter:
uses-material-design: truemain.dart
import 'package:flutter/material.dart';
import 'package:flutter_localizations/flutter_localizations.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Date Format Test',
localizationsDelegates: [
GlobalMaterialLocalizations.delegate,
GlobalWidgetsLocalizations.delegate,
GlobalCupertinoLocalizations.delegate,
],
supportedLocales: [
const Locale('en', 'AU'),
// ... other locales the app supports
],
home: Scaffold(
appBar: AppBar(title: Text('Date Format Test')),
body: Builder(builder: (context) {
final locale = Localizations.localeOf(context);
final localizations = MaterialLocalizations.of(context);
final date = DateTime(2020, 11, 12);
return ListView(
children: [
Text('Current Locale: ${locale.toString()}'),
Text('dateHelpText: ${localizations.dateHelpText}'),
Text('Compact Date: ${localizations.formatCompactDate(date)}'),
Text('Short Date: ${localizations.formatShortDate(date)}'),
Text('Medium Date: ${localizations.formatMediumDate(date)}'),
Text('Full Date: ${localizations.formatFullDate(date)}'),
],
);
}),
),
);
}
}Expected results:
Help text should be dd/mm/yyyy
Actual results:
Help text shows as mm/dd/yyyy
Logs
no errors when flutter run --verbose
Analyzing dateformat...
No issues found! (ran in 4.2s)
[✓] Flutter (Channel beta, 1.23.0-18.1.pre, on Mac OS X 10.15.7 19H2 x86_64, locale en-AU)
• Flutter version 1.23.0-18.1.pre at /Users/michael/.bin/flutter
• Framework revision 198df796aa (4 weeks ago), 2020-10-15 12:04:33 -0700
• Engine revision 1d12d82d9c
• Dart version 2.11.0 (build 2.11.0-213.1.beta)
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
• Android SDK at /Users/michael/Library/Android/sdk
• Platform android-29, build-tools 29.0.3
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b4-5784211)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 12.0)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 12.0, Build version 12A7209
• CocoaPods version 1.9.3
[✓] Android Studio (version 3.6)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 45.1.1
• Dart plugin version 192.7761
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b4-5784211)
[✓] VS Code (version 1.51.1)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.16.0
[✓] Connected device (1 available)
• iPhone 11 (mobile) • F3EA93B5-C2C5-4293-BF6C-B8E48251D7E0 • ios • com.apple.CoreSimulator.SimRuntime.iOS-14-0 (simulator)
Flutters
en_AUlocalizations give the wrongdateHelpText. Specifically, they inherit from MaterialLocalizationEn - which uses US style mm/dd/yyyy. That's not how things are done in Australia.While the help text is incorrect, the underlying DateFormat locale uses the correct d/m/yyyy formatting. This confuses the user, because when they enter a date as specified by the help desk, the parsed DateTime result is incorrect.
Steps to Reproduce
flutter create bug.Minimal Example
pubspec.yamlmain.dartExpected results:
Help text should be dd/mm/yyyy
Actual results:
Help text shows as mm/dd/yyyy
Logs
no errors when
flutter run --verboseAnalyzing dateformat...
No issues found! (ran in 4.2s)