localize_and_translate 2.0.1

Flutter Localization In Human Way, Help with localizing your app

localize_and_translate

Flutter Localization In Human Way

Screenshots

Methods

Method	Job
currentLanguage	active language code
locale	active Locale
init()	initialize things, before runApp()
translate('word')	word translation
googleTranslate('word', from: 'en', to: 'ar')	google translate
setNewLanguage(context,'en',restart: true, remember: true,)	change language
locals()	locales list
isDirectionRTL()	is Direction RTL check

How To Use

1. add localize_and_translate: <latest> as dependency in pubspec.yaml
2. run flutter pub get into app folder
3. add .json translation files as assets

• For example : 'assets/langs/ar.json' | 'assets/langs/en.json'
• structure should look like

{
  "appTitle" : "Example",
  "buttonTitle": "العربية", 
  "textArea" : "Thisi is just a test text",
}

{
  "appTitle" : "تجربة",
  "buttonTitle": "English", 
  "textArea" : "هذا مجرد نموذج للتأكد من اداء الاداة",
}

• define them as assets in pubspec.yaml

flutter:
  assets:
    - assets/langs/en.json
    - assets/langs/ar.json

• run flutter pub get

4. add imports to main.dart

import 'package:flutter/material.dart';
import 'package:localize_and_translate/localize_and_translate.dart';

5. wrap app entry into LocalizedApp() ** make sure you define it's child into different place "NOT INSIDE" **
6. convert your main() method to async, we will need next
7. add WidgetsFlutterBinding.ensureInitialized(); at very first of main()
8. inside main() define: Languages + Root dir, then call await translator.init();

• so now your main() should look like this

Future<void> main() async {
  // if your flutter > 1.7.8 :  ensure flutter activated
  WidgetsFlutterBinding.ensureInitialized();

  LIST_OF_LANGS = ['ar', 'en']; // define languages
  LANGS_DIR = 'assets/langs/'; // define directory
  await translator.init(); // intialize

  runApp(
    LocalizedApp(
      child: MyApp(),
    ),
  );
}

11. define your LocalizedApp() child as MaterialApp() like this

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Home(), // re Route
      localizationsDelegates: translator.delegates, // Android + iOS Delegates
      locale: translator.locale, // active locale
      supportedLocales: translator.locals(), // locals list
    );
  }
}

12. Enjoy

• we use translate("appTitle")
• we use googleTranslate("test", from: 'en', to: 'ar')
• setNewLanguage("en") : and it's parameters

class Home extends StatefulWidget {
  @override
  _HomeState createState() => _HomeState();
}

class _HomeState extends State<Home> {
  String testText =
      translator.currentLanguage == 'ar' ? 'جار الترجمة' : 'Translating..';

  @override
  void initState() {
    super.initState();
    Future.delayed(Duration.zero, () async {
      translator.currentLanguage == 'ar'
          ? testText = await translator.googleTranslate(
              'This text translated using google translate',
              from: 'en',
              to: 'ar',
            )
          : testText = await translator.googleTranslate(
              'هذا النص ترجم باستخدام ترجمة جوجل',
              from: 'ar',
              to: 'en',
            );

      setState(() {});
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      drawer: Drawer(),
      appBar: AppBar(
        title: Text(translator.translate('appTitle')),
        // centerTitle: true,
      ),
      body: Container(
        width: double.infinity,
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.center,
          mainAxisAlignment: MainAxisAlignment.spaceAround,
          children: <Widget>[
            SizedBox(height: 50),
            Text(
              translator.translate('textArea'),
              textAlign: TextAlign.center,
              style: TextStyle(fontSize: 35),
            ),
            Text(
              testText,
              textAlign: TextAlign.center,
              style: TextStyle(fontSize: 35),
            ),
            OutlineButton(
              onPressed: () {
                translator.setNewLanguage(
                  context,
                  newLanguage: translator.currentLanguage == 'ar' ? 'en' : 'ar',
                  remember: true,
                  restart: true,
                );
              },
              child: Text(translator.translate('buttonTitle')),
            ),
          ],
        ),
      ),
    );
  }
}

Complete Example

• Pub
• Github

Known Issues

• Not working with flutter version < 1.12.13

Author

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My Plugins

• localize_and_translate
• print_color
• user_auth
• flutter_hex_color