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封装了一个vue移动端下拉加载下一页数据的组件

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前言

简单封装了一个vue下拉加载组件,分享一下,已放到github和前端资源库,欢迎下载!

组件代码

<template>
    <div class="my-scroll" :class="[scrollState?'prohibit':'allow']" ref="myScroll" @scroll.passive="onScroll($event)"  @touchmove="onScroll($event)"  >
        <!-- top -->
        <div class="scroll-list">
            <slot name='scrollList'></slot>
            <div class="scroll-bottom">
                <div v-if="state==1">
                    <i><img :src="Load"/></i>
                    <p>加载中</p>
                    </div>
                <div v-if="state==2">加载完成</div>
                <div v-if="state==3">没有数据了</div>
            </div>
        </div>
    </div>
</template>
<script type="text/javascript">
import Load from '@/assets/Load.gif'
export default {
  name: 'myScroll',
  props: {
    'onPull': { // 加载回调
      type: Function,
      require: true
    },
    'scrollState': {// 是否可滑动
      type: Boolean,
      require: true
    },
    loaded: {
      type: Boolean,
      default() {
        return false
      }
    }
  },
  data() {
    return {
      Load,
      timeoutId: null,
      state: 0,
      myScroll: null
    }
  },
  methods: {
    /*
             * 加载中:1
             * 加载完成:2
             * 没有更多:3
             */
    setState(index) { // 修改状态
      this.state = index
      // console.log(this.state)
    },
    onScroll(e) {
      const _this = this
      const scrollTop = document.documentElement.scrollTop || document.body.scrollTop
      // console.log(window.innerHeight + scrollTop, this.myScroll.offsetHeight)
      if (!this.loaded && window.innerHeight + scrollTop - 50 >= this.myScroll.offsetHeight) {
        clearTimeout(this.timeoutId)
        _this.timeoutId = setTimeout(() => {
          _this.bottomCallback()
        }, 100)
      }
    },
    bottomCallback() { // 加载回调
      // console.log('回调', new Date().getTime())
      if (this.state != 3) {
        this.state = 1
        this.onPull()
      }
    }
  },
  mounted() {
    this.myScroll = this.$refs.myScroll // 获取滑条dom
  }
}
</script>
<style lang="scss" scoped>
    .allow{
        overflow:hidden;
        height: auto;
    }
    .prohibit{
        max-width: 100%;
        max-height: 100%;
      height: 100%;
        overflow:hidden;
        overflow-y: scroll;
        -webkit-overflow-scrolling: touch;
        will-change: transform;
      transition: all 450ms;
      backface-visibility: hidden;
      perspective: 1000;
    }
    .my-scroll{
      position: relative;
         color: #999;
        .scroll-top{
            text-align: center;
            display:flex;
            position:absolute;
            top:0;
            left:0;
              width:100%;
              overflow: hidden;
        }
        .scroll-list{
            overflow:hidden;
            min-height: 100%;
        }
        .scroll-bottom{
            text-align: center;
            line-height: .8rem;
        div{
                display:flex;
                  height:auto;
                width:100%;
                justify-content: center;
                align-items:center;
                flex-wrap: wrap;
                i{
                    flex:1 0 100%;
                    display:block;
                    height: 0.4rem;
                }
                img{
                    width:0.6rem;
                }
                p{
                    flex:1 0 100%;
                }
            }
        }
    }
</style>

使用

<template>
  <div id="app">
      <my-scroll class="scrolls" ref="myScroll" :on-pull="getList" :loaded="loaded" :scroll-state="scrollState">
          <div slot="scrollList">
            <div class="list" v-for="(item,index) in listData" :key="index">{{item.name}}</div>
          </div>
      </my-scroll>
  </div>
</template>
<script>
import myScroll from "./components/vue-scroll.vue";
import axios from 'axios'
export default {
  name: "app",
  data(){
    return{
      scrollState: true, // 是否可以滑动
      loaded: false,
      iPage: 1,
      listData:[],
      iPageSize: 10,
    }
  },
  methods: {
    getList(){
       this.$refs.myScroll.setState(1)
       let _this = this
       // ajax 请求
        axios.get('https://easy-mock.com/mock/5b90f971ce624c454133ee2d/scoll/datalist').then(function (response) {
            if (response.data.code == 200 && response.data.data.pagelist.length > 0 && !_this.loaded) {
              if (_this.iPage == 1) {
                _this.listData = response.data.data.pagelist
              } else {
                _this.listData.push(...response.data.data.pagelist)
              }
              _this.iPage++
              _this.$refs.myScroll.setState(2)
            } else {
              if (_this.iPage == 1) {
                _this.czListData = []
              }
              _this.loaded = true
              _this.$refs.myScroll.setState(3)
            }   
          })
          .catch(function (error) {
            console.log(error);
          });
        }

  },
  mounted () {
    this.getList()  
  },
  components: {
    myScroll
  }
};
</script>

<style scoped>
#app {
  font-family: "Avenir", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}
.scrolls{
  font-size:.24rem;
}
.list{
  height:.9rem;
  line-height: .9rem;
  margin-bottom:.1rem;
  border-bottom:1px solid #dedede;
  color:#999;
  font-size:.28rem;
}
</style>

组件已放到github,欢迎下载和star

可以直接在vue项目中运行这个组件

github地址:https://github.com/confidence68/vue_mobile_scrollLoadpage

Tags: vuescroll

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