同步小程序讲解页面标题

src/pages/index/index.vue

@@ -1032,6 +1032,11 @@ const syncTopTabToUrl = (tabId: GuideTopTab) => {
   }
 }
 
+const syncEmbeddedHostNavigationTitle = (tabId: GuideTopTab) => {
+  if (!isEmbeddedInWechatMiniProgram()) return
+  syncHostNavigationTitle(tabId === 'explain' ? '免费讲解' : '地图导览')
+}
+
 const isPoiSearchOverlayHistoryState = (state: unknown): state is PoiSearchOverlayHistoryState => (
   Boolean(
     state
@@ -1133,6 +1138,7 @@ const handleTabChange = (tabId: GuideTopTab) => {
   }
 
   currentTab.value = tabId
+  syncEmbeddedHostNavigationTitle(tabId)
   syncTopTabToUrl(tabId)
   loadTopTabData(tabId)
 
@@ -1160,11 +1166,13 @@ const syncTopTabFromHash = () => {
       closeArrivalPanel()
     }
     syncTopTabToUrl(tab)
+    syncEmbeddedHostNavigationTitle(tab)
     return
   }
 
   syncTopTabToUrl(currentTab.value)
   loadTopTabData(currentTab.value)
+  syncEmbeddedHostNavigationTitle(currentTab.value)
 }
 
 onMounted(() => {
@@ -1173,10 +1181,6 @@ onMounted(() => {
 
   if (typeof window === 'undefined') return
 
-  if (isEmbeddedInWechatMiniProgram()) {
-    syncHostNavigationTitle('地图导览')
-  }
-
   stopOutdoorMapAvailabilitySubscription = subscribeOutdoorMapAvailability(handleOutdoorMapUnavailable)
   void refreshOutdoorMapAvailability()
   syncTopTabFromHash()