feat(PosterCheckin): 添加海报切换功能并优化活动信息展示

添加左右箭头切换不同海报的功能
增加活动信息展示区域，包含活动主题、打卡进度和截止日期
重构海报生成逻辑以支持多海报切换

@@ -15,6 +15,7 @@ declare module 'vue' {
     NutActionSheet: typeof import('@nutui/nutui-taro')['ActionSheet']
     NutButton: typeof import('@nutui/nutui-taro')['Button']
     NutDatePicker: typeof import('@nutui/nutui-taro')['DatePicker']
+    NutIcon: typeof import('@nutui/nutui-taro')['Icon']
     NutImagePreview: typeof import('@nutui/nutui-taro')['ImagePreview']
     NutInput: typeof import('@nutui/nutui-taro')['Input']
     NutPicker: typeof import('@nutui/nutui-taro')['Picker']

 <!--
  * @Date: 2022-09-19 14:11:06
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-09-03 14:47:33
+ * @LastEditTime: 2025-09-03 15:54:59
  * @FilePath: /lls_program/src/pages/ActivitiesCover/index.vue
  * @Description: 活动海报页面 - 展示活动信息并处理定位授权
 -->
@@ -277,7 +277,7 @@ const onShareActivity = () => {
 const onSharePoster = () => {
   console.log('分享海报')
   Taro.navigateTo({
-    url: '/pages/CheckinList/index',
+    url: '/pages/PosterCheckin/index',
   })
 }
 

 <template>
   <view class="poster-checkin-page bg-gray-50 h-screen flex flex-col">
+    <!-- 活动信息区域 -->
+    <view class="bg-white mx-4 mt-4 mb-2 rounded-lg shadow-sm p-4">
+      <!-- 活动主题 -->
+      <view class="text-lg font-bold text-gray-800 mb-2">
+        {{ activityInfo.title }}
+      </view>
+
+      <!-- 打卡进度 -->
+      <view class="flex items-center mb-2">
+        <view class="flex items-center mr-4">
+          <view
+            v-for="(point, index) in activityInfo.checkPoints"
+            :key="index"
+            class="w-6 h-6 rounded-full mr-2 flex items-center justify-center"
+            :class="point.completed ? 'bg-orange-400' : 'bg-gray-300'"
+          >
+            <text class="text-white text-xs">{{ index + 1 }}</text>
+          </view>
+        </view>
+        <text class="text-sm text-gray-600">{{ activityInfo.completedCount }}/{{ activityInfo.totalCount }}</text>
+      </view>
+
+      <!-- 活动截止日期 -->
+      <view class="text-sm text-gray-500">
+        活动截止日期：{{ activityInfo.endDate }}
+      </view>
+    </view>
+
     <!-- 海报预览区域 -->
-    <view class="flex-1 mx-4 mt-4 mb-4 rounded-lg overflow-hidden">
-      <view class="h-full relative flex items-center justify-center">
-        <view v-if="posterPath" class="w-full h-full relative">
+    <view class="flex-1 mx-4 mb-2 bg-white rounded-lg shadow-sm relative" style="overflow: visible;">
+      <view class="h-full relative bg-gray-100 flex items-center justify-center">
+        <view v-if="currentPoster.path" class="w-full h-full relative">
           <image
-            :src="posterPath"
+            :src="currentPoster.path"
             mode="aspectFit"
             class="w-full h-full"
-
           />
           <!-- 点击预览提示 -->
-          <view @tap="previewPoster" class="absolute bottom-4 right-4 bg-black bg-opacity-50 text-white text-xs px-2 py-1 rounded">
+          <view @tap="previewPoster" class="absolute bottom-2 right-2 bg-black bg-opacity-50 text-white text-xs px-2 py-1 rounded">
             点击预览
           </view>
         </view>
-        <!-- <view v-else class="text-center text-gray-500">
-          <view class="text-4xl mb-2">🎨</view>
-          <text class="text-sm">海报生成中...</text>
-          <view class="mt-2">
-            <view class="w-8 h-8 border-2 border-blue-500 border-t-transparent rounded-full animate-spin mx-auto"></view>
-          </view>
-        </view> -->
+      </view>
+
+      <!-- 左箭头按钮 -->
+      <view
+        class="absolute top-1/2 transform -translate-y-1/2 w-10 h-10 rounded-full flex items-center justify-center transition-all duration-200 z-10"
+        :class="currentPosterIndex > 0 ? 'bg-orange-400 text-white shadow-lg' : 'bg-gray-300 text-gray-500'"
+        style="left: -20rpx;"
+        @tap="previousPoster"
+      >
+        <Left size="16"></Left>
+      </view>
+
+      <!-- 右箭头按钮 -->
+      <view
+        class="absolute top-1/2 transform -translate-y-1/2 w-10 h-10 rounded-full flex items-center justify-center transition-all duration-200 z-10"
+        :class="currentPosterIndex < posterList.length - 1 ? 'bg-orange-400 text-white shadow-lg' : 'bg-gray-300 text-gray-500'"
+        style="right: -20rpx;"
+        @tap="nextPoster"
+      >
+        <Right size="16"></Right>
       </view>
     </view>
 
@@ -86,7 +126,7 @@
 <script setup>
 import { ref, onMounted, computed, watch } from 'vue'
 import Taro from '@tarojs/taro'
-import { Left } from '@nutui/icons-vue-taro'
+import { Left, Right } from '@nutui/icons-vue-taro'
 import PosterBuilder from '@/components/PosterBuilder/index.vue'
 import BASE_URL from '@/utils/config'
 
@@ -94,11 +134,57 @@ import BASE_URL from '@/utils/config'
 const posterPath = ref('') // 生成的海报路径
 const backgroundImage = ref('') // 用户上传的背景图
 const shouldGeneratePoster = ref(false) // 是否应该生成海报
+const currentPosterIndex = ref(0) // 当前显示的海报索引
 
 // 图片预览相关
 const previewVisible = ref(false)
 const previewImages = ref([])
 
+// 活动信息数据
+const activityInfo = ref({
+  title: '南京路乐龄时尚消费主题路线',
+  checkPoints: [
+    { id: 1, name: '起点签到', completed: true },
+    { id: 2, name: '商圈探索', completed: true },
+    { id: 3, name: '文化体验', completed: true },
+    { id: 4, name: '美食品鉴', completed: false },
+    { id: 5, name: '终点打卡', completed: false }
+  ],
+  completedCount: 3,
+  totalCount: 5,
+  endDate: '2025年9月7日'
+})
+
+// 海报列表数据
+const posterList = ref([
+  {
+    id: 1,
+    title: '起点签到',
+    path: '',
+    checkPointId: 1,
+    backgroundImage: 'https://cdn.ipadbiz.cn/lls_prog/images/welcome_1.png'
+  },
+  {
+    id: 2,
+    title: '商圈探索',
+    path: '',
+    checkPointId: 2,
+    backgroundImage: 'https://cdn.ipadbiz.cn/lls_prog/images/welcome_1.png'
+  },
+  {
+    id: 3,
+    title: '文化体验',
+    path: '',
+    checkPointId: 3,
+    backgroundImage: 'https://cdn.ipadbiz.cn/lls_prog/images/welcome_1.png'
+  }
+])
+
+// 当前海报
+const currentPoster = computed(() => {
+  return posterList.value[currentPosterIndex.value] || { path: '', title: '' }
+})
+
 // Mock数据
 const mockData = ref({
   user: {
@@ -126,7 +212,8 @@ const defaultBackground = 'https://cdn.ipadbiz.cn/lls_prog/images/welcome_1.png'
 
 // 海报配置
 const posterConfig = computed(() => {
-  const bgImage = backgroundImage.value || defaultBackground
+  const currentPosterData = posterList.value[currentPosterIndex.value]
+  const bgImage = backgroundImage.value || currentPosterData?.backgroundImage || defaultBackground
 
   return {
     width: 750,
@@ -246,8 +333,8 @@ const posterConfig = computed(() => {
  */
 onMounted(() => {
   Taro.setNavigationBarTitle({ title: '海报打卡' })
-  // 页面加载时生成海报
-  generatePoster()
+  // 页面加载时生成当前海报
+  generateCurrentPoster()
 })
 
 /**
@@ -255,11 +342,18 @@ onMounted(() => {
  */
 watch(backgroundImage, () => {
   if (backgroundImage.value) {
-    generatePoster()
+    generateCurrentPoster()
   }
 })
 
 /**
+ * 监听当前海报索引变化，切换海报
+ */
+watch(currentPosterIndex, () => {
+  generateCurrentPoster()
+})
+
+/**
  * 返回上一页
  */
 const goBack = () => {
@@ -267,9 +361,9 @@ const goBack = () => {
 }
 
 /**
- * 生成海报
+ * 生成当前海报
  */
-const generatePoster = () => {
+const generateCurrentPoster = () => {
   posterPath.value = ''
   shouldGeneratePoster.value = false
 
@@ -280,6 +374,33 @@ const generatePoster = () => {
 }
 
 /**
+ * 切换海报
+ */
+const switchPoster = (index) => {
+  if (index >= 0 && index < posterList.value.length) {
+    currentPosterIndex.value = index
+  }
+}
+
+/**
+ * 切换到上一张海报
+ */
+const previousPoster = () => {
+  if (currentPosterIndex.value > 0) {
+    currentPosterIndex.value = currentPosterIndex.value - 1
+  }
+}
+
+/**
+ * 切换到下一张海报
+ */
+const nextPoster = () => {
+  if (currentPosterIndex.value < posterList.value.length - 1) {
+    currentPosterIndex.value = currentPosterIndex.value + 1
+  }
+}
+
+/**
  * 选择背景图片
  */
 const chooseBackgroundImage = () => {
@@ -340,6 +461,10 @@ const uploadBackgroundImage = (filePath) => {
  */
 const onPosterSuccess = (result) => {
   posterPath.value = result.tempFilePath
+  // 更新当前海报的路径
+  if (posterList.value[currentPosterIndex.value]) {
+    posterList.value[currentPosterIndex.value].path = result.tempFilePath
+  }
   shouldGeneratePoster.value = false
   Taro.showToast({ title: '海报生成成功', icon: 'success' })
 }
@@ -357,10 +482,11 @@ const onPosterFail = (error) => {
  * 预览海报
  */
 const previewPoster = () => {
-  console.warn('预览海报', posterPath.value)
-  if (!posterPath.value) return
+  const currentPath = currentPoster.value.path
+  console.warn('预览海报', currentPath)
+  if (!currentPath) return
 
-  previewImages.value = [{ src: posterPath.value }]
+  previewImages.value = [{ src: currentPath }]
   previewVisible.value = true
 }
 
@@ -375,13 +501,14 @@ const closePreview = () => {
  * 保存海报到相册
  */
 const savePoster = () => {
-  if (!posterPath.value) {
+  const currentPath = currentPoster.value.path
+  if (!currentPath) {
     Taro.showToast({ title: '请等待海报生成完成', icon: 'none' })
     return
   }
 
   Taro.saveImageToPhotosAlbum({
-    filePath: posterPath.value,
+    filePath: currentPath,
     success: () => {
       Taro.showToast({ title: '保存成功', icon: 'success' })
     },