How to implement horizontal sliding of pictures in vueJS

VueJS method to realize horizontal sliding of pictures: 1. Use npm to install vue-awesome-swiper; 2. Reference vue-awesome-swiper in main.js; 3. Use swiper to slide left and right to switch pictures. .

The operating environment of this article: windows7 system, vue2.9.6 version, DELL G3 computer.

How to achieve horizontal sliding of images in vueJS?

vue uses swiper to slide left and right to switch pictures:

Use npm to install vue-awesome-swiper

npm install vue-awesome-swiper --save

In main.js Quote

import VueAwesomeSwiper from 'vue-awesome-swiper'
Vue.user(VueAwesomeSwiper)
import 'swiper/dist/css/swiper.css'

Use

<template>
 <div>
  <label>{{ time }}</label>
  <div id="star-pic-vue">
   <template v-if="data">
    <img
     e
     v-for="(item, index) in images"
     :src="item.url"
     :key="index"
     id="contract_url"
     @click="enlargePic(index)"
    />
    <template v-if="isDialogShow"> </template>
    <el-dialog
     :visible.sync="centerDialogVisible"
     width="100%"
     modal
     close-on-click-modal
     custom-class="dialog"
    >
     <swiper :options="swiperOption" ref="mySwiper" style="height: 100%;">
      <swiper-slide v-for="(img, index) in images" :key="index">
       <div>
        <img :src="img.url" alt="" />
       </div>
      </swiper-slide>
     </swiper>
    </el-dialog>
   </template>
  </div>
 </div>
</template>
 
<script>
import { swiper, swiperSlide } from "vue-awesome-swiper";
export default {
 name: "PictureComponent",
 props: ["data", "maxShow", "time"],
 data() {
  return {
   centerDialogVisible: false,
   showPic: "",
   isDialogShow: false,
   activeIndex: 1,
   startX: 0,
   swiperOption: {
    width: window.innerWidth,
    zoom: true,
    initialSlide: 0
   }
  };
 },
 computed: {
  images() {
   if (this.data instanceof Array && this.data.length > 2) {
    var value = this.data;
    return value.splice(0, this.maxShow);
   } else {
    return this.data;
   }
  }
 },
 components: {
  swiper,
  swiperSlide
 },
 methods: {
  // 放大图片
  enlargePic(i) {
   this.activeIndex = i;
   this.isDialogShow = true;
   // 使用$refs，如果ref是定位在有v-if、v-for、v-show中的DOM节点，
   // 返回来的只能是undefined，因为在mounted阶段他们根本不存在
   this.$nextTick(() => {
    var swiper = this.$refs.mySwiper.swiper;
    swiper.activeIndex = i;
   });
   this.centerDialogVisible = true;
  }
 }
};
</script>
 
<style>
.timeline {
 display: block;
 margin: 10px 20px 5px;
}
#star-pic-vue .el-dialog__wrapper {
 position: fixed;
 top: 0;
 right: 0;
 bottom: 0;
 left: 0;
 overflow: auto;
 margin: 0;
 background: #171717;
}
#star-pic-vue {
 width: 100%;
 height: auto;
 display: flex;
 flex-wrap: wrap;
 justify-content: stretch;
 padding: 3px 13px;
 img {
  width: 82px;
  height: 80px;
  margin: 4px 0px 0px;
  padding-right: 2px;
 }
 .dialog {
  img {
   width: 100%;
   height: 100%;
   margin: 0;
  }
 }
 .el-carousel__item h3 {
  color: #475669;
  font-size: 18px;
  opacity: 0.75;
  line-height: 300px;
  margin: 0;
  height: 100%;
  width: 100%;
 }
 .el-dialog__header {
  display: none;
 }
 .el-dialog__body {
  padding: 0 !important;
  margin: 0 !important;
  height: 460px;
  background: #171717;
 }
 .el-carousel {
  height: 100%;
 }
 .el-carousel__container {
  height: 410px;
 }
 .el-carousel__indicators--outside {
  margin-top: 20px;
 }
}
</style>

Effect

The main reason why $refs cannot be located is because v-if, v If statements such as -for and v-show rely on parameters passed by the parent component, the parameters have not been obtained in the mounted() stage.

If you want to really get the data after the DOM is loaded, you need to call VUE's global api: this.$nextTick(() => {})

Recommended: "The latest 5 vue.js video tutorial selections"

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