feat:拆分组件

lib/main.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:flutter_localizations/flutter_localizations.dart';
 import 'package:food_hub_app/profile.dart';
 import 'package:food_hub_app/record.dart';
 import 'package:food_hub_app/views/login.dart';
@@ -19,7 +20,25 @@ class MyApp extends StatelessWidget {
     return MaterialApp(
       debugShowCheckedModeBanner: false,
       theme: ThemeData(fontFamily: 'CustomFont', primaryColor: Colors.green),
-      locale: const Locale('zh', 'CN'),
+      supportedLocales: const [
+        Locale('en', 'US'), // 英语
+        Locale('zh', 'CN'), // 中文
+      ],
+      // 本地化代理配置
+      localizationsDelegates: const [
+        GlobalMaterialLocalizations.delegate,
+        GlobalWidgetsLocalizations.delegate,
+        GlobalCupertinoLocalizations.delegate,
+      ],
+      // 根据系统语言自动选择Locale
+      localeResolutionCallback: (locale, supportedLocales) {
+        for (var supportedLocale in supportedLocales) {
+          if (supportedLocale.languageCode == locale?.languageCode) {
+            return supportedLocale;
+          }
+        }
+        return supportedLocales.first;
+      },
       home: LoginPage(),
       routes: {
         '/home': (context) => MainPage(),