flutter_translator 0.0.3

Flutter Translator is a package use for in-app localization with json file. More easier and faster to implement. This package is inspired by the flutter_localizations itself.

How to use

Create the json file for the language translation

We're not support the dynamic path and file name yet so the json files have to be at the assets/locales/ and the file name has to be localization_{languageCode}.json example: localization_en.json So the directory tree will look like this:

project_root_directory
|__ ...
|__ assets
    |__ fonts
    |__ images
    |__ locales
        |__ localization_en.json
        |__ localization_kh.json
        |__ localization_ja.json
|__ ...

And don't for get to add asset path to the pubspec.yaml:

assets:
    - assets/locales/

Project configuration

Initialize the TranslatorGenerator object (this can be local or global, up to you)

final TranslatorGenerator _translator = TranslatorGenerator.instance;

Init the supported languages and default language code for the app. This has to be done only at the main.dart

@override
void initState() {
    _translator.init(
        languageCodes: ['en', 'kh', 'ja'],
        initLanguageCode: 'en',
    );
    _translator.onTranslatedLanguage = _onTranslatedLanguage;
    super.initState();
}

void _onTranslatedLanguage(Locale locale) {
    setState(() {});
}

Add supportedLocales and localizationsDelegates to the MaterialApp

@override
Widget build(BuildContext context) {
    return MaterialApp(
        supportedLocales: _translator.supportedLocales,
        localizationsDelegates: _translator.localizationsDelegates,
        home: HomeScreen(),
    );
}

Call the translate function anytime you want to translate the app and provide it with the language code

RaisedButton(
    child: Text('English'),
    onPressed: () {
        _translator.translate('en');
    },
),

To display the value from the json file, just use the getString function by providing context and key

_translator.getString(context, 'title');