2023/02/12 22:57
[Solved] Flutter Intl Plugin Error: No instance of S present in the widget tree. Did you add S.delegate in localizationsDelegates?
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
localizationsDelegates: const [
GlobalMaterialLocalizations.delegate,
GlobalWidgetsLocalizations.delegate,
GlobalCupertinoLocalizations.delegate,
S.delegate,
],
supportedLocales: S.delegate.supportedLocales,
localeListResolutionCallback: (locales, supportedLocales) {
print('当前系统语言环境$locales');
return;
},
onGenerateTitle: (context){
return S.of(context).title;
},
theme: ThemeData(
primarySwatch: Colors.blue,
),
//home: MyHomePage(title: S.of(context).title),
home: MyHomePage(title: S.current.title)
);
}
Error
The following assertion was thrown building MyApp(dirty):
No instance of S present in the widget tree. Did you add S.delegate in localizationsDelegates?
‘package:untitled/generated/l10n.dart’:
Failed assertion: line 44 pos 12: ‘instance != null’
Solution
Change this:
//home: MyHomePage(title: S.of(context).title),
to:
home: MyHomePage(title: S.current.title)