easy_localization 2.0.1+2

Easy and Fast internationalizing and localization your Flutter Apps, this package simplify the internationalizing process using Json file.

Easy localization

Easy and Fast internationalizing your Flutter Apps, this package simplify the internationalizing process using Json file

Why easy_localization

• ✅ simplifying and making easy the internationalizing process in Flutter.
• ✅ Using JSON Files .
• ✅ Load locale from remote or backend.
• ✅ Automatically saving App state (save/restor the selected locale).
• ✅ Supports plural
• ✅ Supports gender
• ✅ Supports Flutter extension.
• ✅ Supports change locale dynamically .
• ✅ Supports for RTL locales
• ✅ Supports for nesting
• ✅ Customization AssetLoader localizations
• ✅ Support for context
• ✅ Testable and easy maintenence

Changelog

[2.0.1]

• Added change locale dynamically saveLocale default value true
• fixed many issues

[2.0.0]

this version came with many updates, here are the main ones:

• optimized and clean code more stability

• fixed many issues

• added Unite test

• Customization AssetLoader localizations assetLoader

• added fallbackLocale as optional

• Hiding EasyLocalizationProvider

• refactor and update approach localization for more details see example:

  // Now V2.0.0
  runApp(EasyLocalization(
    child: MyApp(),
    ...
  ));
  
  // after V2.0.0
  runApp(EasyLocalization(
    child: MyApp(),
    ...
  ));
  ...
  class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    var data = EasyLocalizationProvider.of(context).data;
    return EasyLocalizationProvider(...);
  }}
  

• added Support for context

  tr("key", context: context),
  plural("key", 1 , context: context),
  

Getting Started

Configuration

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

dependencies:
  # stable version install from https://pub.dev/packages
  easy_localization: <last_version>

  # Dev version install from git REPO
  easy_localization:
    git: https://github.com/aissat/easy_localization.git

you must add flutter_localizations to your pubspec.yaml file:

dependencies:
  flutter_localizations:
    sdk: flutter

Load translations from local assets

You must create a folder in your project's root: the path. Some examples:

/assets/"langs" , "i18n", "locale" or anyname ...

/resources/"langs" , "i18n", "locale" or anyname ...

Inside this folder, must put the json files containing the translated keys :

path/${languageCode}-${countryCode}.json

example:

• en.json to en-US.json
• ar.json to ar-DZ.json
• zh.json to zh-CN.json
• zh.json to zh-TW.json

must declare the subtree in your pubspec.yaml as assets:

flutter:
  assets:
    - {`path`/{languageCode}-{countryCode}.json}

The next step :

import 'dart:developer';

import 'package:example/lang_view.dart';
import 'package:example/my_flutter_app_icons.dart';
import 'package:flutter/material.dart';
import 'package:flutter_localizations/flutter_localizations.dart';
import 'package:easy_localization/easy_localization.dart';

void main(){
  runApp(EasyLocalization(
    child: MyApp(),
    supportedLocales: [Locale('en', 'US'), Locale('ar', 'DZ')],
    path: 'resources/langs',
    // fallbackLocale: Locale('en', 'US'),
    // useOnlyLangCode: true,
    // optional assetLoader default used is RootBundleAssetLoader which uses flutter's assetloader
    // assetLoader: RootBundleAssetLoader()
    // assetLoader: NetworkAssetLoader()
    // assetLoader: TestsAssetLoader()
    // assetLoader: FileAssetLoader()
    // assetLoader: StringAssetLoader()
  ));
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      localizationsDelegates: [
        GlobalMaterialLocalizations.delegate,
        GlobalWidgetsLocalizations.delegate,
        EasyLocalization.of(context).delegate,
      ],
      supportedLocales: EasyLocalization.of(context).supportedLocales,
      locale: EasyLocalization.of(context).locale,
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Easy localization'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int counter = 0;
  bool _gender = true;

  incrementCounter() {
    setState(() {
      counter++;
    });
  }

  switchGender(bool val) {
    setState(() {
      _gender = val;
    });
  }

  @override
  Widget build(BuildContext context) {
    log(tr("title"), name: this.toString() );
    return Scaffold(
      appBar: AppBar(
        title: Text("title").tr(context: context),
        actions: <Widget>[
          FlatButton(
            child: Icon(Icons.language),
            onPressed: () {
              Navigator.push(
                context,
                MaterialPageRoute(
                    builder: (_) => LanguageView(), fullscreenDialog: true),
              );
            },
          ),
        ],
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Spacer(
              flex: 1,
            ),
            Text(
              'switch.with_arg',
              style: TextStyle(
                  color: Colors.grey.shade600,
                  fontSize: 19,
                  fontWeight: FontWeight.bold),
            ).tr(args: ["aissat"], gender: _gender ? "female" : "male"),
            Text(
              tr('switch', gender: _gender ? "female" : "male"),
              style: TextStyle(
                  color: Colors.grey.shade600,
                  fontSize: 15,
                  fontWeight: FontWeight.bold),
            ),
            Row(
              mainAxisAlignment: MainAxisAlignment.center,
              children: <Widget>[
                Icon(MyFlutterApp.male_1),
                Switch(value: _gender, onChanged: switchGender),
                Icon(MyFlutterApp.female_1),
              ],
            ),
            Spacer(
              flex: 1,
            ),
            Text('msg').tr(args: ['aissat', 'Flutter']),
            Text('clicked').plural(counter),
            FlatButton(
              onPressed: () {
                incrementCounter();
              },
              child: Text('clickMe').tr(),
            ),
            SizedBox(
              height: 15,
            ),
            Text(
                plural('amount', counter,
                    format: NumberFormat.currency(
                        locale: Intl.defaultLocale,
                        symbol: "€")),
                style: TextStyle(
                    color: Colors.grey.shade900,
                    fontSize: 18,
                    fontWeight: FontWeight.bold)),
            SizedBox(
              height: 20,
            ),
            Text('profile.reset_password.title').tr(),
            Spacer(
              flex: 2,
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: incrementCounter,
        child: Text('+1'),
      ),
    );
  }
}

to change Locale

EasyLocalization.of(context).locale = locale;

Load translations from Customization AssetLoader

for example You need to have backend endpoint (loadPath) where resources get loaded from and your endpoint must containing the translated keys.

example:

class NetworkAssetLoader extends AssetLoader {
  @override
  Future<Map<String, dynamic>> load(String localePath) async {
    return http
        .get(localePath)
        .then((response) => json.decode(response.body.toString()));
  }

  @override
  Future<bool> localeExists(String localePath) => Future.value(true);
}

The next step :

...
void main(){
  runApp(EasyLocalization(
    child: MyApp(),
    supportedLocales: [Locale('en', 'US'), Locale('ar', 'DZ')],
    path: 'https://raw.githubusercontent.com/aissat/easy_localization/master/example/resources/langs',
    assetLoader: NetworkAssetLoader()
    // fallbackLocale: Locale('en', 'US'),
    // useOnlyLangCode: true,
    // optional assetLoader default used is RootBundleAssetLoader which uses flutter's assetloader
    // assetLoader: RootBundleAssetLoader()
    // assetLoader: TestsAssetLoader()
    // assetLoader: FileAssetLoader()
    // assetLoader: StringAssetLoader()
  ));
}
...

Screenshots

Arbic RTL	English LTR

Donations

---

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Contributors thanks