feat:增加主题颜色和暗黑模式

lib/main.dart

@@ -11,7 +11,7 @@ import 'layout/main_screen.dart';
 import 'models/todo.dart';
 import 'provider/todo_provider.dart';
 
-void main() async{
+void main() async {
   WidgetsFlutterBinding.ensureInitialized();
   // 初始化提醒服务
   final notifyService = NotifyService();
@@ -50,22 +50,23 @@ class MyApp extends StatelessWidget {
       providers: [
         ChangeNotifierProvider(create: (_) => AppProvider()),
         ChangeNotifierProvider(create: (_) => TodoProvider()),
-        ChangeNotifierProvider(create: (_) => FlispProvider())
+        ChangeNotifierProvider(create: (_) => FlispProvider()),
       ],
-      child: MaterialApp(
-        title: '闪灵',
-        localizationsDelegates: [
-          GlobalMaterialLocalizations.delegate,
-          GlobalWidgetsLocalizations.delegate,
-          GlobalCupertinoLocalizations.delegate
-        ],
-        supportedLocales: [
-          const Locale('zh'),
-          const Locale('zh', 'CN'),
-        ],
-        locale: Locale('zh', 'CN'),
-        theme: ThemeData(primarySwatch: Colors.blue, useMaterial3: true),
-        home: const MainScreen(),
+      child: Consumer<AppProvider>(
+        builder: (context, appProvider, child) {
+          return MaterialApp(
+            title: '闪灵',
+            localizationsDelegates: [
+              GlobalMaterialLocalizations.delegate,
+              GlobalWidgetsLocalizations.delegate,
+              GlobalCupertinoLocalizations.delegate,
+            ],
+            supportedLocales: [const Locale('zh'), const Locale('zh', 'CN')],
+            locale: Locale('zh', 'CN'),
+            theme: appProvider.currentThemeData,
+            home: const MainScreen(),
+          );
+        },
       ),
     );
   }