MUI 上拉刷新/下拉加载功能实例代码

新闻信息列表必备的功能,支持Table,Ul等列表.

以下是DIV版本,在安卓端或者ios端必须使用双webview模式,传送门:http://dev.dcloud.net.cn/mui/pulldown/

<!--下拉刷新容器-->
<div id="pullrefresh" class="mui-content mui-scroll-wrapper">
 <div class="mui-scroll">
  <!--数据列表-->
  <ul class="mui-table-view">
  </ul>
 </div>
</div>
<script type="text/javascript">
 mui.init
 ({
 pullRefresh: 
 {
  container: '#pullrefresh',
  down: {
  callback: pulldownRefresh
  },
  up: {
  contentrefresh: '正在加载...',
  callback: pullupRefresh
  }
 }
 });
 /*
 * 下拉刷新具体业务实现
 */
 function pulldownRefresh() 
 {
 setTimeout(function() 
 {
  var table = document.body.querySelector('.mui-table-view');
  var cells = document.body.querySelectorAll('.mui-table-view-cell');
  //模拟数据
  for (var i = cells.length, len = i + 3; i < len; i++) {
  var li = document.createElement('li');
  li.className = 'mui-table-view-cell';
  li.innerHTML = '<a class="mui-navigate-right">Item ' + (i + 1) + '</a>';
  //下拉刷新,新纪录插到最前面;
  table.insertBefore(li, table.firstChild);
  }
  mui('#pullrefresh').pullRefresh().endPulldownToRefresh(); //refresh completed
 }, 1500);
 }
 var count = 0;
 /*
 * 上拉加载具体业务实现
 */
 function pullupRefresh() 
 {
 setTimeout(function() {
  mui('#pullrefresh').pullRefresh().endPullupToRefresh((++count > 2)); //参数为true代表没有更多数据了。
  var table = document.body.querySelector('.mui-table-view');
  var cells = document.body.querySelectorAll('.mui-table-view-cell');
  for (var i = cells.length, len = i + 20; i < len; i++) {
  var li = document.createElement('li');
  li.className = 'mui-table-view-cell';
  li.innerHTML = '<a class="mui-navigate-right">Item ' + (i + 1) + '</a>';
  table.appendChild(li);
  }
 }, 1500);
 }
 if (mui.os.plus) {
 mui.plusReady(function() {
  setTimeout(function() {
  mui('#pullrefresh').pullRefresh().pullupLoading();
  }, 1000);
 });
 } else 
 { 
 mui.ready(function() {
  mui('#pullrefresh').pullRefresh().pullupLoading();
 });
 }
</script>

 个人心得

1、手动加载loading,并且会立即调用[下拉刷新]绑定的函数

mui('#pullrefresh').pullRefresh().pullupLoading(); //使用这个之后,自动会加载[下拉刷新]绑定的函数

2、停止上拉刷新和下拉加载的loading

mui('#pullrefresh').pullRefresh().endPullupToRefresh(num >= cnt); //参数可以为返回true/false的表达式
mui('#pullrefresh').pullRefresh().endPulldownToRefresh();

3、初始化

初始化时通常要将原数据列表清空,如:$("#mui-table-view").html("");

那么请务必将以下代码放置在清空代码之后.这和scroll的滚动性质有关

mui('#pullrefresh').pullRefresh().refresh(true);  //恢复滚动
mui('#pullrefresh').pullRefresh().scrollTo(0,0,100); //滚动置顶

4、Iscroll方面的扩展和内容

http://www.jb51.net/article/111090.htm

5 Vue使用

<template>
 <div>
  <header class="mui-bar mui-bar-nav">
   <button @click="model" class=" mui-btn mui-btn-blue mui-btn-link mui-btn-nav mui-pull-left"><span class="mui-icon mui-icon-left-nav"></span>{{ modelName }}</button>
   <h1 class="mui-title">笑话大全</h1>
  </header>
  <div class="mui-content mui-scroll-wrapper" id="pullrefresh" >
   <div class="mui-scroll">
    <div class="mui-card" v-for="item in items">
      <div class="mui-card-header mui-card-media" style="">
      <div class="mui-card-content-inner">
        <p style="color: #333;">{{ item.content }}</p>
       </div>
      </div>
      <div class="mui-card-content" v-if="item.url">
       <img :src=" item.url " width="100%" height="100%" draggable="false"/> 
      </div>
      <div class="mui-card-footer">
       Posted on {{ item.updatetime }}
      </div>
    </div>
   </div>
  </div>
 </div>
</template>
<script>
export default {
 data () {
 return { 
   items:[],
   page :1,
   pagesize:5,
   count:0,
   modelName:"图文"
 };
 },
 methods : {
  getJoke () {
   let self = this;  
   var model = self.modelName == "图文" ? "pic" : ""; 
   $.ajax({
    type:"get",
    url:`http://localhost:8090?${model}&page=${self.page}&pagesize=${self.pagesize}`, 
    success (data) {
     let json = JSON.parse(data).result.data;
     self.items = self.items.concat(json); // 合并并且返回一个新数组
     self.page += 1;    
     self.count += 10;
     mui('#pullrefresh').pullRefresh().endPullupToRefresh(self.count >= 1000);
    }
  })
  },
  model () {
   this.modelName = this.modelName == "图文" ? "文字" : "图文";
   this.items = [];
   this.getJoke(); 
  },
  pulldownRefresh () {
   setTimeout(() => {
    mui('#pullrefresh').pullRefresh().endPulldownToRefresh();
   },1500)
  },
  pullupRefresh () {
   this.getJoke();
  }
 },
 created () {
  let self = this;
 mui.ready(function(){
  mui.init
  ({
   pullRefresh: 
   {
    container: '#pullrefresh',
    down: {
    callback: self.pulldownRefresh
    },
    up: {
    contentrefresh: '正在加载...',
    callback: self.pullupRefresh
    }
   } 
  }); 
  self.getJoke(); 
 })
 }
};
</script>
<style lang="css" scoped>
 .mui-card:nth-last-child(1){margin-bottom:70px;}
 .mui-card-header>img:first-child{width:100%;height: 100%;}
 .mui-pull-bottom-pocket{position:inherit}
</style>

以上所述是小编给大家介绍的MUI 上拉刷新/下拉加载功能实例代码,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对编程小技巧网站的支持!

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