Ggtcf

I am trying to add a new language to flutter since it is not supported by default.

I have added translated language file material_dv.arb to flutter/packages/flutter_localizations/lib/src/l10n and ran the code dart dev/tools/gen_localizations.dart --overwrite to generate localizations and date localizations dart file but still when i try to change the locale to the newly added locale dv an error comes up saying that the locale is not supported. So what am i doing wrong here. Or how do i proceed to add a new language to flutter..

Use a Localizations class combined with a LocalizationDelegate:

 class MyLocalizations 
 MyLocalizations(this.locale);

 final Locale locale;

 static Map<String, Map<String, String>> _localizedValues = 
 'en': 
 'Title': 'App',
 ,
 'ar': 
 'Title' : 'التطبيق',
 ,
 ;

 String translate(key) 
 return _localizedValues[locale.languageCode][key];
 

 static String of(BuildContext context, String key) 
 return Localizations.of<MyLocalizations>(context,
 MyLocalizations).translate(key);
 
 

Then the LocalizationDelegate:

 class MyLocalizationsDelegate extends LocalizationsDelegate<MyLocalizations> 

 const MyLocalizationsDelegate();

 @override
 bool isSupported(Locale locale) => ['en', 'ar'].contains(locale.languageCode);

 @override
 Future<MyLocalizations> load(Locale locale) 
 return SynchronousFuture<MyLocalizations> (MyLocalizations(locale));
 

 @override
 bool shouldReload(MyLocalizationsDelegate old) => false;

The complete guide to how to implement internationalization in your app in much easier way in in this article which the above code snippet is coming from.