content localized on locale change

lib/widgets/language_dropdown.dart

@@ -1,13 +1,22 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+import 'package:provider/provider.dart';
 
-class LanguageDropdown extends StatelessWidget {
+import '../providers/locale_provider.dart';
+
+class LanguageDropdown extends StatefulWidget {
   const LanguageDropdown({super.key});
 
+  @override
+  State<LanguageDropdown> createState() => _LanguageDropdownState();
+}
+
+class _LanguageDropdownState extends State<LanguageDropdown> {
   @override
   Widget build(BuildContext context) {
-    return DropdownButton(
-      value: 'de',
+    LocaleProvider localeProvider = Provider.of<LocaleProvider>(context);
+    return DropdownButton<String>(
+      value: localeProvider.locale.languageCode,
       items: [
         DropdownMenuItem(
           value: 'de',
@@ -24,12 +33,13 @@ class LanguageDropdown extends StatelessWidget {
           ),
         ),
       ],
-      onChanged: _onChanged,
+      onChanged: (value) {
+        if (value == null) return;
+        localeProvider.setLocale(Locale(value));
+      },
     );
   }
 
-  void _onChanged(dynamic value) {}
-
   Widget getMenuItem(String label, String imagePath) {
     return Row(
       children: [