feat:增加加载中组件

lib/widgets/recipe/list.dart

@@ -1,8 +1,8 @@
 import 'package:flutter/material.dart';
-import 'package:food_hub_app/apis/recipe.dart';
-import 'package:food_hub_app/models/recipe.dart';
+import 'package:food_hub_app/provider/food_provider.dart';
 import 'package:food_hub_app/widgets/common/index.dart';
 import 'package:food_hub_app/widgets/recipe/card.dart';
+import 'package:provider/provider.dart';
 
 class RecipeList extends StatefulWidget {
   const RecipeList({super.key});
@@ -12,33 +12,40 @@ class RecipeList extends StatefulWidget {
 }
 
 class _RecipeListState extends State<RecipeList> {
-  List<RecipeSummary> recipeSummaryList = [];
-
   @override
   void initState() {
     super.initState();
-    refreshRecipeList();
+
+    // 初始化加载数据
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      context.read<FoodProvider>().refreshRecipeList();
+    });
   }
 
-  Future<void> refreshRecipeList() async {
-    final result = await queryRecipeApi(RecipeQuery(category: ""));
-
-    setState(() {
-      recipeSummaryList = result;
-    });
+  Widget _buildContent(FoodProvider provider) {
+    if (provider.recipeSummaryList.isEmpty) {
+      return buildEmptyData();
+    } else {
+      return ListView.builder(
+        itemCount: provider.recipeSummaryList.length,
+        itemBuilder: (context, index) {
+          return RecipeCard(recipe: provider.recipeSummaryList[index]);
+        },
+      );
+    }
   }
 
   @override
   Widget build(BuildContext context) {
-    if (recipeSummaryList.isEmpty) {
-      return buildEmptyData();
-    } else {
-      return ListView.builder(
-        itemCount: recipeSummaryList.length,
-        itemBuilder: (context, index) {
-          return RecipeCard(recipe: recipeSummaryList[index]);
-        }
-      );
-    }
+    final provider = context.watch<FoodProvider>();
+
+    return Stack(
+      children: [
+        if (provider.isLoading)
+          buildLoadingIndicator(context)
+        else
+          _buildContent(provider),
+      ],
+    );
   }
 }