factor:布局颜色重构

lib/layout/app_drawer.dart

@@ -6,7 +6,7 @@ import 'package:provider/provider.dart';
 class AppDrawer extends StatelessWidget {
   const AppDrawer({super.key});
 
-  DrawerHeader buildDrawerHeader(BuildContext context) {
+  DrawerHeader _buildDrawerHeader(BuildContext context) {
     return DrawerHeader(
       decoration: BoxDecoration(color: Theme.of(context).colorScheme.primary),
       child: Column(
@@ -86,7 +86,7 @@ class AppDrawer extends StatelessWidget {
     );
   }
 
-  Widget buildVersionInfo({
+  Widget _buildVersionInfo({
     required BuildContext context,
     required String fullVersion,
   }) {
@@ -109,18 +109,16 @@ class AppDrawer extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final appProvider = Provider.of<AppProvider>(context);
+    final appProvider = context.watch<AppProvider>();
 
     return Drawer(
       child: Column(
         children: [
-          // 主要内容区域，可以滚动
           Expanded(
             child: ListView(
               padding: EdgeInsets.zero,
               children: [
-                // 抽屉头部
-                buildDrawerHeader(context),
+                _buildDrawerHeader(context),
                 _buildThemeSection(context, appProvider),
                 const Divider(),
                 _buildDrawerItem(
@@ -135,15 +133,10 @@ class AppDrawer extends StatelessWidget {
               ],
             ),
           ),
-
-          Consumer<AppProvider>(
-            builder: (context, appProvider, child) {
-              return buildVersionInfo(
-                context: context,
-                fullVersion: appProvider.fullVersion,
-              );
-            },
-          ),
+          _buildVersionInfo(
+            context: context,
+            fullVersion: appProvider.fullVersion,
+          )
         ],
       ),
     );