vue——手写swiper子组件，pagination不显示、轮播无效问题解决

<link href="https://cdn.bootcss.com/Swiper/3.4.2/css/swiper.css" rel="stylesheet">
<script src="https://cdn.bootcss.com/Swiper/3.4.2/js/swiper.min.js"></script>

<template>
  <div id="detail">
        <DetailSwiper v-bind:swiperList="swiperList"></DetailSwiper>
  </div>
</template>

<script>
  import DetailSwiper from ‘../components/DetailSwiper.vue‘

  export default {
      name: ‘Detail‘,
      data() {
        return {
　　　　　　swiperList:[]
　　　　　}
      },
　　　 mounted(){
　　　　　var _this = this;
　　　　　*****   //获取轮播图片
　　　　　_this.swiperList = list;//list为后端返回的轮播图数据
　　　 },
      components: {
        DetailSwiper
      }
  }
</script>
<style scoped>
  #detail{
        width:100%;
        overflow:hidden;//一定要加，否则轮播图会超出横向屏幕形成滚动条
    }
</style>

<template>
  <div class="shopImgDiv">
    <div class="swiper-container">
      <div class="swiper-wrapper">
         <div class="swiper-slide" v-for="item in swiperList">
                <img :src="item.imgpath" style="width:100%;height:100%">
           </div>
      </div>
      <div class="swiper-pagination"></div>
    </div>
  </div>
</template>

<script>
  export default {
    name: ‘DetailSwiper‘,
    data() {
      return {
        swiperLength: 0,
        swiperList: [],
        option: {
          autoplay: false,
          loop: false,
          pagination: ‘‘,
        }
      }
    },
    methods: {
      initSwiper: function() {
        let _this = this;
        var mySwiper = new Swiper(".swiper-container", {
          autoplay: _this.option.autoplay,
          loop: _this.option.loop,
          autoplayDisableOnInteraction: false,//用户操作swiper之后，是否禁止autoplay
          preventLinksPropagation: false,//是否阻止click冒泡。拖动Swiper时阻止click事件
          pagination: _this.option.pagination,//是否显示小圆点
          observer: true, //修改swiper自己或子元素时，自动初始化swiper
          observeParents: true, //修改swiper的父元素时，自动初始化swiper
        })
      }
    },
    props: [‘swiperList‘],
    watch: {
      swiperList: function(newVal, oldVal) {
        var _this = this;
        var len = newVal.length;
        if (len == 1) { //图片只有一张时不轮播
          _this.$nextTick(() => {  //解决动态获取图片后，不轮播或轮播到最后一张后，第一张一闪而过的问题
            _this.option.autoplay = false;
            _this.option.loop = false;
            _this.option.pagination = ‘‘;
            _this.initSwiper();
          })
        } else if(len > 1) {
          _this.$nextTick(() => {
            _this.option.autoplay = 3000;
            _this.option.loop = true;
            _this.option.pagination = ‘.swiper-pagination‘;
            _this.initSwiper();
          })
        }
      }
    }
  }
</script>

<style @scoped>
  @import ‘.././assets/css/components/componentSwiper.css‘;
</style>

body {
   margin: 0;
   padding: 0;
 }

 .swiper-container {
   width: 100%;
   height: 100%;
 }

 .shopImgDiv {
   width: 100%;
   overflow: hidden;
   height: 100%; //可以设置为auto，会根据图片的高度进行调整
   position: relative;
　　backgound:lightcoral;
 }

 .swiper-wrapper {
   font-size: 0;
 }

 .swiper-pagination {
   width: 100%;
   height: .2rem;
   text-align: center;
   position: absolute;
   bottom: 0 !important;
   line-height: .2rem;
   box-sizing: border-box;
   padding: 0 .3rem;
   font-size: 0;
   z-index: 1;
 }

 .swiper-pagination-bullet {
   background-color: rgba(255, 255, 255, 1);
   opacity: 1;
 }

 .swiper-pagination-bullet-active {  //设置小圆点激活颜色
   background-color: #ff7035 !important;
   opacity: 1;
 }

 .swiper-container-autoheight,
 .swiper-container-autoheight .swiper-slide {
   font-size: 0;
   position: relative;
 }