feat: 预加载优化、nav-bar 箭头居中优化

miniprogram/pages/age/age.ts

@@ -19,7 +19,15 @@ const TAB_BAR_PATHS = new Set([
     '/pages/profile/profile',
 ]);
 
+let _navigating = false;
+
+function releaseNavigateLock() {
+    _navigating = false;
+}
+
 function navigateByPath(path?: string, fallbackTitle?: string) {
+    if (_navigating) return;
+
     const p = String(path || '').trim();
     if (!p) {
         wx.showToast({
@@ -37,11 +45,22 @@ function navigateByPath(path?: string, fallbackTitle?: string) {
                 query,
             );
         }
-        wx.switchTab({ url: basePath });
+        _navigating = true;
+        wx.switchTab({
+            url: basePath,
+            complete: releaseNavigateLock,
+            fail: releaseNavigateLock,
+        });
         return;
     }
-    wx.navigateTo({ url: p }).catch((err) => {
-        console.error('navigateByPath error:', err);
+    _navigating = true;
+    wx.navigateTo({
+        url: p,
+        complete: releaseNavigateLock,
+        fail: (err) => {
+            console.error('navigateByPath error:', err);
+            releaseNavigateLock();
+        },
     });
 }
 

miniprogram/pages/age/age.wxml

@@ -116,7 +116,7 @@
                     path="{{item.path}}"
                     data-title="{{item.title}}"
                     data-path="{{item.path}}"
-                    bindtap="onTapCard"
+                    bind:cardtap="onTapCard"
                 />
             </view>
         </view>

miniprogram/pages/favorites/favorites.ts

@@ -158,6 +158,8 @@ function formatDateKey(date: Date): string {
 }
 
 Page({
+    _navigating: false,
+
     data: {
         favScrollHeight: 0,
         activeTab: 'favorites' as FavoritesTab,
@@ -240,12 +242,23 @@ Page({
     },
 
     onCardTap(e: WechatMiniprogram.TouchEvent) {
+        if (this._navigating) return;
+
         const path = e.currentTarget.dataset.path as string | undefined;
         if (!path) {
             wx.showToast({ title: '该练习已下架', icon: 'none' });
             return;
         }
-        wx.navigateTo({ url: path });
+        this._navigating = true;
+        wx.navigateTo({
+            url: path,
+            complete: () => {
+                this._navigating = false;
+            },
+            fail: () => {
+                this._navigating = false;
+            },
+        });
     },
 
     onSearchTap() {

miniprogram/pages/home/home.ts

@@ -71,7 +71,15 @@ function sortSectionsByTabs(
         }));
 }
 
+let _navigating = false;
+
+function releaseNavigateLock() {
+    _navigating = false;
+}
+
 function navigateByPath(path?: string, fallbackTitle?: string) {
+    if (_navigating) return;
+
     if (!path) {
         wx.showToast({
             title: fallbackTitle ? `${fallbackTitle} 即将上线` : '即将上线',
@@ -96,11 +104,22 @@ function navigateByPath(path?: string, fallbackTitle?: string) {
                 query,
             );
         }
-        wx.switchTab({ url: basePath });
+        _navigating = true;
+        wx.switchTab({
+            url: basePath,
+            complete: releaseNavigateLock,
+            fail: releaseNavigateLock,
+        });
         return;
     }
-    wx.navigateTo({ url: path }).catch((err) => {
-        console.error('navigateByPath error:', err);
+    _navigating = true;
+    wx.navigateTo({
+        url: path,
+        complete: releaseNavigateLock,
+        fail: (err) => {
+            console.error('navigateByPath error:', err);
+            releaseNavigateLock();
+        },
     });
 }
 

miniprogram/pages/home/home.wxml

@@ -248,7 +248,7 @@
                         path="{{item.path}}"
                         data-title="{{item.title}}"
                         data-path="{{item.path}}"
-                        bindtap="onTapCard" />
+                        bind:cardtap="onTapCard" />
                 </view>
             </scroll-view>
         </view>