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How to implement scrolling loading more functions in vue

小云云
Release: 2017-12-23 10:40:09
Original
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This article mainly brings you an example of rolling loading in vue. The editor thinks it’s pretty good, so I’ll share it with you now and give it as a reference. Let’s follow the editor to take a look, I hope it can help everyone.

In the previous era of front-end slash-and-burn farming, we wanted to achieve rolling loading for more people. It would be a little troublesome in vue. I recently studied it myself and made a simple demo for everyone. Reference:


<template>
  <p>
    <ul>
      <li v-for="item in articles">
        <h2>{{item.title}}</h2>
        <img :src="item.images" alt="">
      </li>
    </ul>
  </p>
</template>
<script>
  import axios from &#39;axios&#39;;
  export default{
    data(){
      return {
        articles : []
      }
    },
    mounted(){
      // 缓存指针
      let _this = this;
      // 设置一个开关来避免重负请求数据
      let sw = true;
      // 此处使用node做了代理
      axios.get(&#39;http://localhost:3000/proxy?url=http://news-at.zhihu.com/api/4/news/latest&#39;)
        .then(function(response){
          // console.log(JSON.parse(response.data).stories);
          // 将得到的数据放到vue中的data
          _this.articles = JSON.parse(response.data).stories;
        })
        .catch(function(error){
          console.log(error);
        });

      // 注册scroll事件并监听
      window.addEventListener(&#39;scroll&#39;,function(){
        // console.log(document.documentElement.clientHeight+&#39;-----------&#39;+window.innerHeight); // 可视区域高度
        // console.log(document.body.scrollTop); // 滚动高度
        // console.log(document.body.offsetHeight); // 文档高度
        // 判断是否滚动到底部
        if(document.body.scrollTop + window.innerHeight >= document.body.offsetHeight) {
          // console.log(sw);
          // 如果开关打开则加载数据
          if(sw==true){
            // 将开关关闭
            sw = false;
            axios.get(&#39;http://localhost:3000/proxy?url=http://news.at.zhihu.com/api/4/news/before/20170608&#39;)
              .then(function(response){
                console.log(JSON.parse(response.data));
                // 将新获取的数据push到vue中的data,就会反应到视图中了
                JSON.parse(response.data).stories.forEach(function(val,index){
                  _this.articles.push(val);
                  // console.log(val);
                });
                // 数据更新完毕,将开关打开
                sw = true;
              })
              .catch(function(error){
                console.log(error);
              });  
          }
        }
      });
    }
  }
</script>
<style lang="less">
  *{
    margin:0;
    padding:0;
  }
  li{
    list-style:none;
  }
</style>
Copy after login

The approximate effect is as follows

Of course it is just a demo at the moment, there are better solutions for everyone Supplement yourself.

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