mall-web-ssr/components/mobile/MobileFooter.vue

<template>
  <div class="mobile-footer">
    <span :class="activeType=='home'?'active':''">
      <nuxt-link to="/">
        <i :class="activeType=='home'?'iconfont icon-shouye':'iconfont icon-shouye1'"></i><p>首页</p>
      </nuxt-link>
    </span>
    <span :class="activeType=='shops'?'active':''">
      <nuxt-link to="/mobile/shop">
        <i :class="activeType=='shops'?'iconfont icon-dianpu':'iconfont icon-dianpu1'"></i><p>店铺</p>
      </nuxt-link>
    </span>
    <span :class="activeType=='user'?'active':''">
      <nuxt-link to="/mobile/user">
        <i :class="activeType=='user'?'iconfont icon-icon':'iconfont icon-wo'"></i><p>我</p>
      </nuxt-link>
    </span>
    <a @click="toTop" v-show="!hideToTop"><i class="iconfont icon-arrow-up icon-xlg"></i></a>
  </div>
</template>
<script>
  import { scrollTo } from '~utils/scroll'
  export default{
    name: 'MobileFooter',
    data () {
      return {
        hideToTop: true
      }
    },
    computed: {
      activeType () {
        return this.$route.path === '/' ? 'home' : this.$route.path === '/mobile/shop' ? 'shops' : this.$route.path === '/mobile/user' ? 'user' : ''
      }
    },
    mounted: function () {
      this.$nextTick(function () {
        window.addEventListener('scroll', this.onScroll)
      })
    },
    methods: {
      onScroll () {
        let scrolled = document.documentElement.scrollTop || window.pageYOffset || document.body.scrollTop
        if (scrolled > window.screen.availHeight) {
          this.hideToTop = false
        } else {
          this.hideToTop = true
        }
      },
      toTop () {
        scrollTo('body', 300)
      }
    }
  }
</script>
<style scoped>
  .mobile-footer{
    position:fixed;
    bottom:0;
    width:100%;
    height:.98rem;
    text-align: center;
    border-top:.04rem solid #ccc;
    background: #ffffff;
    z-index: 10;
  }
  .mobile-footer span{
    display: inline-block;
    width: 2.5rem;
    font-size:.32rem;
    color:#b0b0b0;
    padding-top:.1rem;
  }

  .mobile-footer span a{
    color:#b0b0b0;
  }

  .mobile-footer span a i{
    font-size:.45rem;
  }
  .mobile-footer span a p{
    font-size:.22rem;
  }

  .mobile-footer span.active a{
    color:#3976f4;
  }
  .mobile-footer >a {
    position: absolute;
    right: .1rem;
    top: -1rem;
    background: rgba(0,0,0,.4);
    color: #fff;
    width: .88rem;
    height: .88rem;
    line-height: .88rem;
    border-radius: 100%;
  }
  .mobile-footer >a i{
    font-size: .46rem;
  }
</style>