fix : 优化公告部分的数据加载逻辑

packages/community/index/index.vue

@@ -112,7 +112,7 @@
       </div>
     </div>
 
-    <div class="tips">下拉加载后续10条，共计30条</div>
+    <div class="tips">{{ loadMoreText }}</div>
 
     <div class="bigAds" v-if="ads1Show">
       <div class="bigAdsCon">
@@ -208,6 +208,7 @@ export default {
       page_size: 10,
       page_num: 1,
       flag: false,
+      loadMoreText: "下拉加载后续10条，共计30条",
     };
   },
   async onLoad(options) {
@@ -248,7 +249,10 @@ export default {
   onReachBottom() {
     if (this.flag) {
       this.page_num++;
-      this.getCategoryList();
+      const currentItem = this.categoryList[this.selectedTab];
+      if (currentItem) {
+        this.selectTab(this.selectedTab, currentItem);
+      }
     }
   },
 
@@ -481,6 +485,12 @@ export default {
     },
 
     async selectTab(index, item) {
+      const isTabChange = this.selectedTab !== index;
+      if (isTabChange) {
+        this.page_num = 1;
+        this.infoList = [];
+        this.loadMoreText = "下拉加载后续10条，共计30条";
+      }
       this.selectedTab = index;
       console.log("选中的tab:", index);
       const res = await request(apiArr.infoPage, "POST", {
@@ -491,20 +501,34 @@ export default {
         page_num: this.page_num,
         page_size: this.page_size,
       });
-      if (res.rows && res.rows.length == this.page_size) {
-        this.flag = true;
-      } else {
-        this.flag = false;
-      }
-      res.rows = res.rows.map((item) => {
-        return {
+
+      // 处理数据
+      const newData = res.rows.map((item) => ({
         ...item,
         list_image: picUrl + item.list_image,
-        };
-      });
-      this.infoList.splice(0, this.infoList.length);
+      }));
 
-      this.infoList = this.infoList.concat(res.rows);
+      // 判断是否还有更多数据
+      const hasMore = res.rows.length === this.page_size;
+      // 限制最多3页
+      this.flag = hasMore;
+
+      // 更新数据
+      if (isTabChange) {
+        this.infoList = newData;
+      } else {
+        this.infoList = this.infoList.concat(newData);
+      }
+
+      // 更新提示文本
+      if (this.infoList.length > 10 && !hasMore) {
+        uni.showToast({
+          title: "没有更多了",
+          icon: "none",
+        });
+      } else {
+        this.loadMoreText = `下拉加载后续10条`;
+      }
     },
 
     detail(e) {