优化侧边栏按钮：不在顶部时点击《自动隐藏，刷新页面保持记忆

pages/index/index.js

@@ -20,6 +20,7 @@ Page({
     currentY: 0,
     sidebarBtnTop: 500,
     sidebarBtnHidden: false,
+    userManuallyHidden: false,
     
     // 搜索区域相关
     searchSectionVisible: true,
@@ -125,9 +126,23 @@ Page({
   
   // 切换按钮显示/隐藏到侧边栏
   toggleSidebarBtn() {
-    this.setData({
+    // 如果当前不在顶部，点击则隐藏按钮
-      sidebarBtnHidden: !this.data.sidebarBtnHidden
+    if (this.data.lastScrollTop > 50) {
-    });
+      this.setData({
+        sidebarBtnHidden: true,
+        userManuallyHidden: true
+      });
+      wx.setStorageSync('sidebarBtnHidden', true);
+      wx.setStorageSync('userManuallyHidden', true);
+    } else {
+      const newHiddenState = !this.data.sidebarBtnHidden;
+      this.setData({
+        sidebarBtnHidden: newHiddenState,
+        userManuallyHidden: newHiddenState
+      });
+      wx.setStorageSync('sidebarBtnHidden', newHiddenState);
+      wx.setStorageSync('userManuallyHidden', newHiddenState);
+    }
   },
   
   // 触摸开始事件
@@ -179,13 +194,17 @@ Page({
     
     if (Math.abs(diffY) > screenHeight / 3) {
       this.setData({
-        sidebarBtnTop: -100 // 隐藏按钮
+        sidebarBtnTop: -100, // 隐藏按钮
+        sidebarBtnHidden: true,
+        userManuallyHidden: true
       });
       wx.setStorageSync('sidebarBtnTop', -100);
       wx.setStorageSync('sidebarBtnHidden', true);
+      wx.setStorageSync('userManuallyHidden', true);
     } else {
       wx.setStorageSync('sidebarBtnTop', this.data.sidebarBtnTop);
       wx.setStorageSync('sidebarBtnHidden', false);
+      wx.setStorageSync('userManuallyHidden', false);
     }
     
     this.setData({
@@ -211,6 +230,7 @@ Page({
     
     const savedBtnTop = wx.getStorageSync('sidebarBtnTop');
     const savedBtnHidden = wx.getStorageSync('sidebarBtnHidden');
+    const savedUserManuallyHidden = wx.getStorageSync('userManuallyHidden');
     
     let defaultTop = screenHeight * 0.5;
     if (savedBtnTop !== '' && savedBtnTop !== -100) {
@@ -223,7 +243,8 @@ Page({
     
     this.setData({
       sidebarBtnTop: defaultTop,
-      sidebarBtnHidden: false,
+      sidebarBtnHidden: savedBtnHidden || false,
+      userManuallyHidden: savedUserManuallyHidden || false,
       isSearchBarFullyHidden: false,
       lastScrollTop: 0
     });
@@ -1116,7 +1137,8 @@ Page({
     // 搜索框始终固定显示，不做隐藏处理
     
     // 侧边栏按钮显示逻辑
-    if (scrollTop <= threshold && this.data.sidebarBtnHidden) {
+    // 如果用户手动隐藏过，滚动到顶部也不再自动显示
+    if (scrollTop <= threshold && this.data.sidebarBtnHidden && !this.data.userManuallyHidden) {
       updates.sidebarBtnHidden = false;
       needUpdate = true;
       wx.setStorageSync('sidebarBtnHidden', false);

pages/index/index.wxml

@@ -88,7 +88,7 @@
     bindtap="scrollToTop"
   >
     <text class="back-to-top-icon">↑</text>
-    <text class="back-to-top-text">顶部</text>
+    <text class="back-to-top-text">top</text>
   </view>
   <view wx:if="{{showSidebar}}" class="sidebar">
     <view class="sidebar-title">招商合作</view>