internationalization 1.1.0+1

A project to easily implement internationalization on flutter projects

internationalization

A project to easily implement internationalization on flutter projects

Configure Internationalization

Import internationalization package on main.dart.

import 'package:internationalization/internationalization.dart';

call suportedLocales in constructor of your main widget and add locales you might like to use.

class App extends StatelessWidget {
  App() {
    suportedLocales.addAll([
      const Locale('pt', 'BR'),
      const Locale('en', 'US'),
    ]);
  }
}

Now pass the suportedLocales to suportedLocales and the delegates to localizationsDelegates. For InternationalizationDelegate you pass a default locale and a path where the JSON files will be placed

@override
Widget build(BuildContext context) {
    return MaterialApp(
        supportedLocales: suportedLocales,
        localizationsDelegates: [
            InternationalizationDelegate(
                defaultLocale: Locale('pt', 'BR'),
                path: "assets/strings",
            ),
            GlobalMaterialLocalizations.delegate,
            GlobalWidgetsLocalizations.delegate,
        ],
    );
}

In pubspec.yaml put the path that you've passed to InternationalizationDelegate

flutter:
  assets:
    - ./assets/strings/

Usage

Strings.of(context).valueOf("key") //To get a simple string
Strings.of(context).valueOf("key", args: ["A", "B", "C"]) //To get a interpoled string
Strings.of(context).pluralOf("key", 0) //To get a plural string
Strings.of(context).pluralOf("key", 0, args: ["A", "B", "C"]) //To get a plural interpoled string
Strings.of(context).valueOf("key", args: ["A", "B", "C"], namedArgs: {"named_arg_key": "Named arg"}) //To get a interpoled name string

JSON file

Crete JSON files with locale language code and country code. Ex.: pt_BR.json, en_US.json, etc... Note: create JSON files inside folder you passed to InternationalizationDelegate

{
    "simple_string": "Simple string value",
    "interpolation_string": "Interpoleted {0} string {1}",
    "simple_plurals" : {
        "zero": "No information",
        "one": "A item",
        "other": "Many itens"
    },
    "interpolation_plurals": {
        "zero": "No information {0} with {1}",
        "one": "A item {0} with {1}",
        "other": "Many itens {0} with {1}"
    },
    "interpolation_string_with_named_args": "Interpoleted {0} string with ::named_arg_key::"
}