cfc/cfc-frontend/custom-tab-bar/index.vue

<template>
  <view class="tab-bar-wrap" v-if="isLoggedIn">
    <!-- 普通用户TabBar -->
    <view v-if="currentRole !== 'teacher'" class="tab-bar">
      <view
        v-for="(item, index) in normalTabs"
        :key="index"
        class="tab-item"
        :class="{ active: currentIndex === index }"
        @click="switchTab(item, index)"
      >
        <image
          class="tab-icon"
          :src="currentIndex === index ? item.selectedIcon : item.icon"
          mode="aspectFit"
        ></image>
        <text class="tab-text">{{ item.text }}</text>
      </view>
    </view>

    <!-- 规划师TabBar -->
    <view v-else class="tab-bar">
      <view
        v-for="(item, index) in teacherTabs"
        :key="index"
        class="tab-item"
        :class="{ active: currentIndex === index }"
        @click="switchTab(item, index)"
      >
        <image
          class="tab-icon"
          :src="currentIndex === index ? item.selectedIcon : item.icon"
          mode="aspectFit"
        ></image>
        <text class="tab-text">{{ item.text }}</text>
      </view>
    </view>
  </view>
</template>

<script>
export default {
  data() {
    return {
      currentIndex: 0,
      normalTabs: [
        { text: '首页', pagePath: '/pages/index/index', icon: '/static/tab-home.png', selectedIcon: '/static/tab-home-active.png' },
        { text: '任务', pagePath: '/pages/tasks/tasks', icon: '/static/tab-task.png', selectedIcon: '/static/tab-task-active.png' },
        { text: '心愿单', pagePath: '/pages/rewards/rewards', icon: '/static/tab-reward.png', selectedIcon: '/static/tab-reward-active.png' },
        { text: '我的', pagePath: '/pages/profile/profile', icon: '/static/tab-profile.png', selectedIcon: '/static/tab-profile-active.png' }
      ],
      teacherTabs: [
        { text: '首页', pagePath: '/pages/teacher/index', icon: '/static/tab-home.png', selectedIcon: '/static/tab-home-active.png' },
        { text: '家庭', pagePath: '/pages/teacher/families', icon: '/static/tab-family.png', selectedIcon: '/static/tab-family-active.png' },
        { text: '团队', pagePath: '/pages/teacher/team', icon: '/static/tab-team.png', selectedIcon: '/static/tab-team-active.png' },
        { text: '成长档案', pagePath: '/pages/growth/index', icon: '/static/tab-growth.png', selectedIcon: '/static/tab-growth-active.png' },
        { text: '我的', pagePath: '/pages/teacher/teacher-profile', icon: '/static/tab-profile.png', selectedIcon: '/static/tab-profile-active.png' }
      ]
    }
  },
  computed: {
    isLoggedIn() {
      return !!uni.getStorageSync('token')
    },
    currentRole() {
      return uni.getStorageSync('currentRole') || 'parent'
    }
  },
  mounted() {
    this.updateSelected()
    uni.$on('switchRole', () => {
      this.updateSelected()
    })
  },
  methods: {
    updateSelected() {
      const pages = getCurrentPages()
      if (pages.length) {
        const currentPage = pages[pages.length - 1]
        const currentPath = '/' + currentPage.route

        if (this.currentRole === 'teacher') {
          const idx = this.teacherTabs.findIndex(t => t.pagePath === currentPath)
          this.currentIndex = idx >= 0 ? idx : 0
        } else {
          const idx = this.normalTabs.findIndex(t => t.pagePath === currentPath)
          this.currentIndex = idx >= 0 ? idx : 0
        }
      }
    },
    switchTab(item, index) {
      this.currentIndex = index
      // 原生TabBar页使用switchTab，非Tab页使用redirectTo（比reLaunch轻量）
      const nativeTabPages = ['/pages/index/index', '/pages/discover/index', '/pages/shop/index', '/pages/profile/profile']
      if (nativeTabPages.includes(item.pagePath)) {
        uni.switchTab({ url: item.pagePath })
      } else {
        uni.redirectTo({ url: item.pagePath })
      }
    }
  }
}
</script>

<style scoped>
.tab-bar-wrap {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
}

.tab-bar {
  display: flex;
  height: 100rpx;
  background: #fff;
  padding-bottom: env(safe-area-inset-bottom);
  border-top: 1rpx solid #eee;
}

.tab-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.tab-icon {
  width: 48rpx;
  height: 48rpx;
  margin-bottom: 4rpx;
}

.tab-text {
  font-size: 22rpx;
  color: #999;
}

.tab-item.active .tab-text {
  color: #F97316;
}
</style>