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pages/course-detail/course-detail.js

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+// pages/course-detail/course-detail.js
+const { coursesData } = require('../../utils/data.js')
+const { showSuccess, showError } = require('../../utils/util.js')
+const learningTracker = require('../../utils/learningTracker.js')
+
+Page({
+  data: {
+    course: null,
+    isFavorite: false,
+    activeTab: 0,
+    tabs: ['课程信息', '教学大纲', '课程评价']
+  },
+
+  onLoad(options) {
+    const { id } = options
+    this.loadCourseDetail(id)
+  },
+
+  onShow() {
+    // 开始跟踪学习时间
+    learningTracker.onPageShow('course')
+  },
+
+  onHide() {
+    // 停止跟踪学习时间
+    learningTracker.onPageHide()
+  },
+
+  onUnload() {
+    // 记录学习时长
+    learningTracker.onPageUnload()
+  },
+
+  // 加载课程详情
+  loadCourseDetail(id) {
+    const course = coursesData.find(c => c.id === parseInt(id))
+    if (course) {
+      const favorites = wx.getStorageSync('favoriteCourses') || []
+      this.setData({
+        course,
+        isFavorite: favorites.includes(course.id)
+      })
+    } else {
+      showError('课程不存在')
+      setTimeout(() => {
+        wx.navigateBack()
+      }, 1500)
+    }
+  },
+
+  // 切换标签
+  onTabChange(e) {
+    const { index } = e.currentTarget.dataset
+    this.setData({ activeTab: index })
+  },
+
+  // 收藏/取消收藏
+  onToggleFavorite() {
+    const { course, isFavorite } = this.data
+    let favorites = wx.getStorageSync('favoriteCourses') || []
+    
+    if (isFavorite) {
+      favorites = favorites.filter(id => id !== course.id)
+      showSuccess('取消收藏')
+    } else {
+      favorites.push(course.id)
+      showSuccess('收藏成功')
+    }
+    
+    wx.setStorageSync('favoriteCourses', favorites)
+    this.setData({ isFavorite: !isFavorite })
+  },
+
+  // 分享课程
+  onShareAppMessage() {
+    const { course } = this.data
+    return {
+      title: `推荐课程：${course.name}`,
+      path: `/pages/course-detail/course-detail?id=${course.id}`
+    }
+  }
+})