给分区吸顶增加api滚动测试

pages/component/sticky-section/sticky-section.uvue

 <template>
-	<list-view :scroll-y="true" ref="list-view" class="page" scroll-x="true" rebound="false">
+  <list-view id="list-view" ref="list-view" class="page" rebound="false">
     <sticky-section v-for="(sectionText) in data" :padding="sectionPadding" :push-pinned-header="true">
       <sticky-header :header-id="sectionText">
         <text class="sticky-header-text">{{sectionText}}</text>
@@ -8,6 +8,10 @@
         <text class="text">{{sectionText}}--item--content----{{i}}</text>
       </list-item>
     </sticky-section>
+    <list-item style="padding: 10px; margin: 5px 0;align-items: center;">
+      <!-- <text style="color: #aaa">到底了</text> -->
+      <button @click="toTop" size="mini">回到顶部</button>
+    </list-item>
   </list-view>
 </template>
 
@@ -15,11 +19,14 @@
   export default {
     data() {
       return {
-          data: ['A','B','C','D','E','F','G','H','I','J','K','L','M','N'],
-          sectionPadding: [0,10,0,10] as Array <number>
+        data: ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N'],
+        sectionPadding: [0, 10, 0, 10] as Array<number>
       }
     },
     methods: {
+      toTop(){
+        uni.getElementById("list-view")!.scrollTop = 0
+      },
       //用于自动化测试
       listViewScrollByY(y : number) {
         const listview = this.$refs["list-view"] as Element
@@ -34,12 +41,14 @@
     flex: 1;
     background-color: #f5f5f5;
   }
+
   .sticky-header-text {
     font-size: 16px;
     padding: 8px;
     color: #959595;
     background-color: #f5f5f5;
   }
+
   .content-item {
     padding: 15px;
     margin: 5px 0;