修改flutter輸入框彈出框爲中文

return MaterialApp(
localizationsDelegates: [
CupertinoLocalizationsDelegate(),
GlobalMaterialLocalizations.delegate,
GlobalWidgetsLocalizations.delegate,
],
supportedLocales: [
const Locale('zh', 'CN'),
// const Locale('en', 'US'),
],
navigatorKey: navigatorKey,
debugShowCheckedModeBanner: false,
title: Strings.STRING_APP,