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How to override the localization in the Flutter Calendar

In the Flutter Event Calendar, you can override the localization by using the extendibility options.

STEP 1: Add the localization_extendibility.dart file inside the lib folder.


STEP 2: Override the required keyword like the following code snippet.

allowed views label

STEP 3: Add the delegate class for localization in localization_extendibility.dart file.

class SfLocalizationsFrDelegate extends LocalizationsDelegate<SfLocalizations> {
  const SfLocalizationsFrDelegate();
  bool isSupported(Locale locale) => locale.languageCode == 'fr';
  Future<SfLocalizations> load(Locale locale) {
    return SynchronousFuture<SfLocalizations>(SfLocalizationsFr());
  bool shouldReload(LocalizationsDelegate<SfLocalizations> old) => true;

STEP 4: Then call the delegate class to override the localized words.

import 'package:flutter/material.dart';
import 'package:syncfusion_flutter_calendar/calendar.dart';
import 'package:flutter_localizations/flutter_localizations.dart';
import './localization_extendability.dart';
void main() {
  return runApp(Extendibility());
class Extendibility extends StatelessWidget {
  Widget build(BuildContext context) {
    return MaterialApp(
      localizationsDelegates: [
        //Specify the delegate directly
      supportedLocales: [
        const Locale('en'),
        const Locale('et'),
        const Locale('fr'),
      locale: const Locale('fr'),
      home: FlutterLocale(),
class FlutterLocale extends StatefulWidget {
  _FlutterLocaleState createState() => _FlutterLocaleState();
class _FlutterLocaleState extends State<FlutterLocale> {
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(),
        body: SfCalendar(
          view: CalendarView.month,
          allowedViews: [

View sample in GitHub



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