vue底部加载更多

来源：互联网发布：java与c 的区别编辑：程序博客网时间：2024/06/15 19:42
要实现的效果如下：
<template>  <div class="newsList">    <div v-for="(items, index) in newsList">      <div class="date">{{showDay(index)}}</div>      <div class="list" >        <ul>          <li class="list-item" v-for="item in items">            <span class="text">{{item.title}}</span>            <img :src="attachImageUrl(item.images[0])" class="image"/>          </li>        </ul>      </div>    </div>    <div class="infinite-scroll" v-show="loading">      <svg class="loader-circular" viewBox="25 25 50 50">        <circle class="loader-path" cx="50" cy="50" r="20" fill="none" stroke="rgb(53, 157, 218)" stroke-width="5"></circle>      </svg>      <span class="infinite-scroll-text">{{tips}}</span>    </div>  </div></template><script>  import axios from 'axios';  export default {    data () {      return {        newsList: [],        date: [],        todayDate: '',        REQUIRE: true,        loading: false,        tips: '努力加载中...'      }    },    created () {      // 获取今日新闻      axios.get('http://zhihuapi.herokuapp.com/api/4/news/latest')        .then( (res) => {        this.newsList.push(res.data['stories'])        this.date.push(res.data['date']);        this.todayDate = res.data['date']      })    },    mounted () {      // 添加滚动事件，检测滚动到页面底部      window.addEventListener('scroll', this.scrollBottom)    },    methods: {      scrollBottom() {        // 滚动到页面底部时，请求前一天的文章内容        if (((window.screen.height + document.body.scrollTop) > (document.body.clientHeight)) && this.REQUIRE) {          // 请求的数据未加载完成时，滚动到底部不再请求前一天的数据          this.REQUIRE = false;          this.loading = true;          this.tips = '努力加载中...';          axios.get('http://zhihuapi.herokuapp.com/api/4/news/before/' + this.todayDate).then((res) => {            this.newsList.push(res.data['stories']);          this.date.push(res.data['date']);          this.todayDate = res.data['date'];          // 请求的数据加载完成后，再次滚动到底部时，允许请求前一天数据          this.$nextTick(() => {            this.REQUIRE = true;            this.loading = false;          });        }).catch(() => {            this.tips = '连接失败，请稍后重试';          // 请求失败时，将 REQUIRE 置为 true，滚动到底部时，再次请求          this.REQUIRE = true;        });        }      },      showDay (index) {        if (index === 0) {          return '今日新闻'        } else {          return this.getToday(index)        }      },      getToday (index) {        let year = this.date[index].slice(0, 4);        let month = this.date[index].slice(4, 6);        let day = this.date[index].slice(6);        let today = new Date(year + '/' + month + '/' + day);        let week = ['日', '一', '二', '三', '四', '五', '六'];        return month + '月' + day + '日' + ' 星期' + week[today.getDay()];      },      attachImageUrl (srcUrl) {        if (srcUrl !== undefined) {          return 'http://read.html5.qq.com/image?src=forum&q=5&r=0&imgflag=7&imageUrl=' + srcUrl.slice(0, 4) + srcUrl.slice(5);        }      }    }  }</script>
阅读全文
0 0