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vue实现滑动到底部加载更多效果
2020-11-27 21:52:17 责编:小OO
文档


本文实例为大家分享了vue实现滑动到底部加载更多的具体代码,供大家参考,具体内容如下

思路:

如果可视区的高度域dom元素的getBoundingClientRect().bottom高度相同说明已经到了底部,可以实现加载了

template:

<template>
 <div class="content">
 <div class="logo">
 <div>
 <img v-if="server[0].thUintroduceLogo" :src="setIp + server[0].thUintroduceLogo" ">
 <img v-if="!server[0].thUintroduceLogo" src="../../../assets/images/shooping/u538.png" ">
 </div>
 <div>
 <span>{{server[0].companyName}}</span>
 </div>
 <div @click="callCustomer()">
 <img src="../../../assets/images/shooping/u37.png" "> 致电客服
 </div>
 </div>
 <div class="info">
 <div class="swipe">
 <mt-swipe ref="swipe" :auto="0" :showIndicators="false" @change="swipeChange">
 <mt-swipe-item v-for="(item,index) in server[0].thUintroduceImg.split(',')" :key="index">
 <div class="jcc">
 <img :src="setIp + item" ">
 </div>
 </mt-swipe-item>
 </mt-swipe>
 <span class="index">{{activeIndex}}/{{server[0].thUintroduceImg.split(',').length}}</span>
 </div>
 <div class="info1">
 <p>{{server[0].thUintroduceText}}</p>
 <span @click="hidden()" v-if="show"> <i>......</i> 展开</span>
 </div>
 </div>
 <div class="shopping">
 <h4>
 <img src="../../../assets/images/shooping/u19.png" ">
 <span>全部商品</span>
 </h4>
 <img src="../../../assets/images/shooping/split.jpg" ">
 </div>
 <div>
 <div ref="my_pull" class="listUl">
 <div v-for="item in server" :key="item.pId" class="itemLIST" @click="pushInfo(item)">
 <div>
 <img :src="setIp + item.pImgeOne" ">
 </div>
 <div>
 <h3>{{item.pTitle}}</h3>
 <p>
 <span>已售{{item.pSaleNums}}件</span>
 <span v-if="!isMemberId">价格登录可见</span>
 <span v-if="isMemberId">¥{{item.uPrice}}</span>
 </p>
 </div>
 </div>
 <!-- <div v-for="item in 10" :key="item" style="height:100px">{{item}}</div> -->
 </div>
 </div>
 <div v-if="isbottom == -1" class="isbottom">
 <i class="iconfont icon-jiazai1"></i>
 <span>加载中,请稍后</span>
 </div>
 <div v-if="isbottom == 1" class="isbottom">
 <span>没有更多数据了</span>
 </div>
 </div>
</template>

script:

<script>
 import {
 Swipe,
 SwipeItem,
 Popup
 } from 'mint-ui'
 export default {
 data: () => ({
 server: [],
 page: 1,
 clientHeight: 0,
 el: {},
 isbottom: 0,
 show: true,
 activeIndex: 1
 }),
 created() {
 this.getServer()
 },
 beforeDestroy() {
 let title = document.querySelector("#title")
 title.style.background = "#6a7d8f";
 let arr = document.querySelector(".is-left")
 arr.style.color = "#fff"
 },
 computed: {
 isMemberId() {
 return this.$store.state.isMemberId
 }
 },
 mounted() {
 this.clientHeight = document.documentElement.clientHeight
 this.$nextTick(() => {
 let title = document.querySelector("#title")
 title.style.background = "#fff";
 let arr = document.querySelector(".is-left")
 arr.style.color = "#333"
 this.el = this.$refs.my_pull;
 window.addEventListener('scroll', this.handleScroll)
 })
 },
 methods: {
 callCustomer() {
 let msg = this.server[0].thServicePhone;
 $App.callCustomer(msg);
 },
 swipeChange() {
 this.activeIndex = this.$refs.swipe.index + 1
 },
 hidden() {
 let el = document.querySelector(".info1")
 el.style.height = "auto"
 this.show = false
 },
 pushInfo(item) {
 this.$store.dispatch("newshoppingInfo", item)
 console.log(this.$store.state.shoppingInfo);
 this.$router.push({
 path: "/shooping/shoopingInfo",
 })
 },
 handleScroll() {
 let a = this.el.getBoundingClientRect().bottom;
 a = Math.ceil(a);
 if (a == this.clientHeight) {
 this.isbottom = -1
 this.page++
 this.getServer()
 }
 },
 // 获取后台数据
 getServer() {
 $App.showWebActivity();
 this.$http.post(this.root + 'agriculture/xxxxxxxxx', {
 key: this.zkey,
 code: this.zcode,
 page: this.page,
 rows: 4,
 townsid: sessionStorage.getItem("villageId"),
 pUid: sessionStorage.getItem("shoppingUid")
 }, {
 emulateJSON: true
 }).then((res) => {
 $App.dismissWebActivity()
 if (res.body.code == 100) {
 if (this.page == 1) {
 this.server = res.body.list.rows;
 } else {
 this.server = this.server.concat(res.body.list.rows)
 }
 if (res.body.list.rows.length >= 4) {
 this.isLast = false
 } else {
 this.isLast = true;
 this.isbottom = 1
 window.removeEventListener('scroll', this.handleScroll)
 }
 } else {
 $App.toastWebActivity(res.body.message)
 console.log(res)
 }
 }, (err) => {
 $App.dismissWebActivity()
 })
 },
 },
 }
</script>

style:

<style lang="less" scoped>
 .content {
 .isbottom {
 display: flex;
 align-items: center;
 justify-content: center;
 padding: 15px 0;
 color: #999;
 i {
 font-size: 30px;
 animation: rotate 1s infinite;
 }
 span {
 color: #ccc;
 padding-left: 15px;
 }
 }
 .logo {
 background: #fff;
 padding-bottom: 15px;
 div {
 &:nth-child(1) {
 display: flex;
 justify-content: center;
 img {
 width: 60px;
 height: 60px;
 }
 }
 &:nth-child(2) {
 text-align: center;
 padding: 15px 15px;
 color: #609bf0;
 }
 &:nth-child(3) {
 display: flex;
 justify-content: center;
 align-items: center;
 color: #1296db;
 border: #1296db 1PX solid;
 width: 50%;
 margin: 0 auto;
 padding: 5px 0;
 font-size: 15px;
 img {
 width: 20px;
 height: 20px;
 margin-right: 8px;
 }
 }
 }
 }
 .info {
 background: #fff;
 margin-bottom: 10px;
 padding-bottom: 15px;
 .swipe {
 height: 300px;
 background: #eee;
 position: relative;
 .jcc {
 display: flex;
 justify-content: center;
 height: 300px;
 }
 img {
 // width: 100%;
 height: 100%;
 }
 .index {
 position: absolute;
 background: rgba(243, 244, 245, .8);
 padding: 5px 15px;
 bottom: 10px;
 right: 10px;
 border-radius: 50px;
 }
 }
 }
 .info1 {
 background: #fff;
 position: relative;
 padding: 15px 9px 0;
 height: 79px;
 overflow: hidden;
 p {
 line-height: 22px;
 text-indent: 2em;
 letter-spacing: 1.2px;
 }
 span {
 width: 75px;
 text-align: right;
 position: absolute;
 bottom: 0;
 right: 9px;
 color: #39c;
 background: #fff;
 i {
 color: #333;
 }
 }
 }
 .shopping {
 background: #fff;
 padding-top: 15px;
 h4 {
 display: flex;
 align-items: center;
 justify-content: center;
 padding-bottom: 10px;
 >img {
 width: 30px;
 height: 30px;
 margin-right: 10px;
 }
 span {
 color: #0f5e;
 font-weight: normal;
 }
 }
 img {
 display: block;
 width: 100%;
 height: 2px;
 }
 }
 .listUl {
 // display: flex;
 // flex-wrap: wrap;
 padding: 0 15px;
 top: 60px;
 height: calc(100% - 100px) !important;
 background: #fff;
 overflow: hidden;
 .itemLIST {
 // float: left;
 width: 50%;
 display: inline-block;
 padding-top: 15px;
 padding-bottom: 15px;
 &:nth-child(2n) {
 padding-right: 5px;
 }
 &:nth-child(2n -1) {
 padding-left: 5px;
 }
 img {
 // width: 100%;
 height: 100%;
 /* prettier-ignore */
 // border: 1PX solid #eee;
 }
 div {
 &:first-child {
 overflow: hidden;
 height: 160px;
 display: flex;
 align-items: center;
 justify-content: center;
 }
 &:last-child {
 h3 {
 font-weight: normal;
 font-size: 16px;
 margin-top: 5px;
 text-overflow: ellipsis;
 white-space: nowrap;
 overflow: hidden;
 }
 p {
 font-size: 14px;
 margin-top: 5px;
 display: flex;
 align-items: center;
 justify-content: space-between; // padding: 0 15px;
 padding-right: 10px;
 span {
 display: block;
 &:first-child {
 color: #888;
 }
 &:last-child {
 color: red;
 font-size: 16px;
 }
 }
 }
 }
 }
 }
 }
 }
</style>

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