feat:更新统计模块

lib/widgets/stats/card.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:food_hub_app/models/stats.dart';
 
 class StatisticCard extends StatelessWidget {
   final IconData icon;
@@ -25,13 +26,14 @@ class StatisticCard extends StatelessWidget {
       child: Padding(
         padding: const EdgeInsets.all(10.0),
         child: Row(
+          mainAxisAlignment: MainAxisAlignment.center,
           children: [
             SizedBox(
-              width: 60,
-              height: 60,
-              child: Icon(icon, color: color, size: 42),
+              width: 40,
+              height: 40,
+              child: Icon(icon, color: color, size: 40),
             ),
-            const SizedBox(width: 16),
+            const SizedBox(width: 10),
             Column(
               crossAxisAlignment: CrossAxisAlignment.center,
               mainAxisAlignment: MainAxisAlignment.center,
@@ -56,3 +58,58 @@ class StatisticCard extends StatelessWidget {
     );
   }
 }
+
+// 获取排名对应的颜色
+Color _getRankColor(int index) {
+  switch (index) {
+    case 0: // 第1名
+      return Colors.amber; // 金色
+    case 1: // 第2名
+      return Colors.grey; // 银色
+    case 2: // 第3名
+      return Colors.orange[700]!; // 铜色
+    default:
+      return Colors.black; // 普通颜色
+  }
+}
+
+Widget rankChart(List<ChartData> items) {
+  return ListView.builder(
+    itemCount: items.length,
+    itemBuilder: (context, index) {
+      final item = items[index];
+      final rank = index + 1;
+      return SizedBox(
+        height: 35,
+        child: Row(
+          mainAxisAlignment: MainAxisAlignment.spaceBetween,
+          children: [
+            Row(
+              children: [
+                Container(
+                  width: 25,
+                  alignment: Alignment.center,
+                  child: Text(
+                    '$rank.',
+                    style: TextStyle(
+                      fontWeight: FontWeight.bold,
+                      color: _getRankColor(index),
+                    ),
+                  ),
+                ),
+                Text(
+                  item.name,
+                  style: TextStyle(color: _getRankColor(index)),
+                ),
+              ],
+            ),
+            Text(
+              '${item.value.toStringAsFixed(0)} 次',
+              style: TextStyle(color: _getRankColor(index)),
+            ),
+          ],
+        ),
+      );
+    },
+  );
+}