initial

lib/main.dart

@@ -0,0 +1,61 @@
+import 'package:flutter/material.dart';
+import 'package:unionapp/providers/user_provider.dart';
+import 'home_screen.dart'; // 1. 导入我们写好的主界面
+import 'package:provider/provider.dart';
+
+
+void main() async {
+  WidgetsFlutterBinding.ensureInitialized();
+  final userProvider = UserProvider.instance;
+  await userProvider.initUser();
+
+  runApp(
+    ChangeNotifierProvider.value(
+      value: userProvider,
+      child: const MaterialApp(home: MyApp()),
+    ),
+  );
+}
+class MyApp extends StatelessWidget {
+  const MyApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'Glass Nav Demo',
+      // 2. 配置主题
+      theme: ThemeData(
+        useMaterial3: true,
+
+        // 🔑 关键点：背景色不能是纯白或不透明的纯色
+        // 建议设置一个浅灰色或带渐变的背景，这样玻璃效果才明显
+        scaffoldBackgroundColor: const Color(0xFFF0F2F5),
+
+        colorScheme: ColorScheme.fromSeed(
+          seedColor: Colors.blue,
+          brightness: Brightness.light,
+        ),
+      ),
+
+      // 3. 配置暗色模式主题（可选，但推荐）
+      darkTheme: ThemeData(
+        useMaterial3: true,
+        // 暗色模式下，背景深一点，玻璃效果会更像“磨砂黑玻璃”
+        scaffoldBackgroundColor: const Color(0xFF121212),
+        colorScheme: ColorScheme.fromSeed(
+          seedColor: Colors.blue,
+          brightness: Brightness.dark,
+        ),
+      ),
+
+      // 4. 跟随系统自动切换亮/暗模式
+      themeMode: ThemeMode.system,
+
+      // 5. 设置首页为 HomeScreen
+      home: const HomeScreen(),
+
+      // 去掉默认的 debug 标签（可选）
+      debugShowCheckedModeBanner: false,
+    );
+  }
+}