How to change language of Show date picker in flutter

In order to show the date picker in local language, you need to make use of flutter_localizations plugin and specify localizationDelegates and supportedLocales inside MaterialApp in your main code. Below is sample working code that shows datepicker in French:

1. Add flutter_localizations plugin in pubspec.yaml and run pub get.

2. Import the plugin in dart file.

3. Inside MaterialApp, add following:

   return MaterialApp(      localizationsDelegates: [        GlobalMaterialLocalizations.delegate      ],      supportedLocales: [        const Locale('en'),        const Locale('fr')      ],

   ....

   body: Center(          child: RaisedButton(            child: Text('Tap'),            onPressed: () {              showDatePicker(                context: context,                  locale : const Locale("fr","FR"),                initialDate: DateTime.now(),                firstDate: DateTime(2018),                lastDate: DateTime(2030),                builder: (BuildContext context, Widget child) {                  return Theme(                    data: ThemeData.dark(),                    child: child,                  );                }              );            },          )        )

4. Run app again (hot restart) and see that datepicker shows up in French.

Hope this answers your question.

I followed @Darshan's answer but I got the following error :

Unsupported operation: Cannot set value in unmodifiable Map

after I removed await initializeDateFormatting('fr_FR'); from main.dart it worked well for me , enjoy