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使用Vue框架如何實現(xiàn)上拉刷新功能

亞連

發(fā)布： 2018-06-23 18:10:14

原創(chuàng)

3069人瀏覽過

這篇文章主要為大家詳細介紹了基于vue框架vux組件庫實現(xiàn)上拉刷新功能，具有一定的參考價值，感興趣的小伙伴們可以參考一下

最近公司在研發(fā)app,選擇了基于Vue框架的vux組件庫，現(xiàn)總結(jié)在實現(xiàn)上拉刷新功能遇到的坑：
1.問題：只刷新一次，解決方法：需要自己手動重置狀態(tài)
this.scrollerStatus.pullupStatus = ‘default'，
2.問題：不能滾動，解決方法：因為啟用keep-alive緩存，需要設置

activated () {
 this.$refs.scroller.reset()
}

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如果還沒效果，請在獲取后臺數(shù)據(jù)后，執(zhí)行如下代碼

this.$nxtTick(() => {
    this.$refs.scroller.reset()
   })

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貼出整個頁面的代碼。

<template> 
  <p style="height:100%;">

    <x-header slot="header" :left-options="{showBack: false}" >會議列表 
    <a slot="right" v-on:click="show = true" > <icon type="search"></icon> </button> </a> 
    </x-header>

    <!-- 會議列表 -->
    <scroller v-model="scrollerStatus" height="-46"  lock-x scrollbar-y ref="scroller" :bounce="isbounce" :use-pullup="showUp" :pullup-config="upobj" @on-pullup-loading="selPullUp" >
    <p class="box2">
      <p v-for="list, index in lists">  
         <router-link :to="{ path: list.id } ">
           <p style="height:40px;"> 
            <span class="spanMeetTitle" v-html='(index+1) + " . " + list.name' ></span>
            <span class="spanMeetStatu" v-html='list.status'></span>
           </p> 
          <p class="prevSuper">
           <form-preview header-label="" header-value="" :bodyItems="list" :footer-buttons="buttons1"></form-preview>
          </p>
          </router-link>  
          <hr>  
       </p> 
    </p>
    </scroller>

   <!-- 導航 -->
   <Home></Home>

   <!-- 搜索 --> 
   <popup v-model="show" @on-hide="log('hide')" @on-show="log('show')" height="93%">
   <p class="popup0">
    <group> 
     <x-input v-model='meetName' placeholder="請輸入“會議名稱”搜索"></x-input> 
     <p style="float:left;margin-top: -36px;"><icon type="search"></icon></p> 
    </group>
 <!--  
    <group> 
     <checklist :max=1 title="會議審批狀態(tài)" required :options="commonList" v-model="checkStatus" @on-change="change"></checklist> 
    </group> -->

     <group title="會議審批狀態(tài)">
     <radio :options="commonList" v-model="checkStatus" @on-change="change"></radio>
    </group>

    <group title="會議類型">
      <selector placeholder="請選擇會議類型" v-model="checkType" :options="meetType"></selector>
    </group>

     <group title="召開時間">
     <flexbox>
      <flexbox-item>
      <p class="flex-demo" style="background-color:white;color:black;height:45px"> 
       <datetime title='' placeholder="請選擇" v-model="startTime" format="YYYY-MM-DD HH:mm" @on-change="change" ></datetime>
      </p>
      </flexbox-item>
      至
      <flexbox-item>
      <p class="flex-demo" style="background-color:white;color:black;height:45px">
       <datetime title='' placeholder="請選擇" v-model="stopTime" format="YYYY-MM-DD HH:mm" @on-change="change" ></datetime>
      </p>
      </flexbox-item>
     </flexbox> 
    </group>
    <br>
    <flexbox orient="vertical">
     <flexbox-item><p class="flex-demo" v-on:click="toSearch" >確定</p></flexbox-item>
     <flexbox-item><p class="flex-demo" v-on:click="show = false" style="background-color:white;color:black">取消</p></flexbox-item>
    </flexbox>

   </p>
  </popup>

  <toast v-model="showToast">已加載全部數(shù)據(jù)</toast>

  <loading v-model="isShowLoading" :text="textLoading"></loading>

  <alert v-model="isShowAlert" :title="AlertCongratulations" > {{ alertMessage }}</alert>
  </p>
</template>

<style type="text/css">
 .weui-form-preview__value{
  font-size: 1.1em !important;
  color: black;
 }
 .spanMeetTitle{
  float: left; 
  border-radius: 13px;
  padding:10px 6px; 
  font-size: 15px; 
  font-weight: bold;
  margin-left: 3px;
  color: black;
 }
 .spanMeetStatu{
   float: right;
   background-color: green;
   border-radius: 10px;
   padding:6px 5px;
   color: white;
   font-size: 13px;
   margin-top: 5px;
 }
 .flex-demo{
  height: 30px;padding-top: 5px; 
 }
 .selected{
  color: blue !important;
  background-color: transparent;
 }
 .popup0 {
 padding-bottom:15px;
 height:200px;
 }
 .popup1 {
  width:100%;
  height:100%;
 }
 .popup2 {
  padding-bottom:15px;
  height:400px;
 }
 .box1 {
  height: 100px;
  position: relative;
  width: 1490px;
 }
 .box1-item {
  width: 200px;
  height: 100px;
  background-color: #ccc;
  display:inline-block;
  margin-left: 15px;
  float: left;
  text-align: center;
  line-height: 100px;
 }
 .box1-item:first-child {
  margin-left: 0;
 }
 .box2-wrap {
  height: 300px;
  overflow: hidden;
 }
</style>

<script>
import { XHeader, Group, FormPreview, Tabbar, TabbarItem, Scroller, Icon, Popup, XSwitch, Toast, XInput, Checklist, Datetime, Flexbox, FlexboxItem, Selector, Loading, Alert, Radio } from 'vux'
import Home from './Home'

export default {
 components: {
  XHeader,
  Home,
  Group,
  FormPreview,
  Tabbar,
  TabbarItem,
  Scroller,
  Icon,
  Popup,
  XSwitch,
  Toast,
  XInput,
  Checklist,
  Datetime,
  Flexbox,
  FlexboxItem,
  Selector,
  Loading,
  Alert,
  Radio
 },
 data () {
  return {
   type: '1',
   PageIndex: 0,
   show: false,
   showToast: false,
   showloading: false,
   showUp: true,
   isbounce: false,
   isShowAlert: false,
   AlertCongratulations: '條件有誤',
   textloading: '加載中',
   alertMessage: '‘召開時間' 不能大于 ‘結(jié)束時間'',
   value: '',
   meetName: '',
   startTime: '',
   stopTime: '',
   meetType: [],
   commonList: [{key: '20', value: '審批中'}, {key: '50', value: '審批通過'}, {key: '', value: '全部'}],
   checkStatus: '',
   checkType: '',
   commonList2: [],
   results: [],
   lists: [[]],
   buttons1: [{
    style: 'primary',
    text: '查看更多',
    link: '/Message'
   }],
   upobj: {
    content: '請上拉刷新數(shù)據(jù)',
    pullUpHeight: 60,
    height: 40,
    autoRefresh: false,
    downContent: '請上拉刷新數(shù)據(jù)',
    upContent: '請上拉刷新數(shù)據(jù)',
    loadingContent: '加載中...',
    clsPrefix: 'xs-plugin-pullup-'
   },
   isShowLoading: false,
   textLoading: '加載中',
   scrollerStatus: {
    pullupStatus: 'default'
   }
  }
 },
 mounted () {
  console.log(this.scrollerStatus.pullupStatus)
  this.getMeetList(true)
  this.getMeetType()
  this.$nextTick(() => {
   this.$refs.scroller.reset()
  })
 },
 methods: {
  log (str) {
   console.log(str)
  },
  getMeetList (isEmpty) {
   var APPROVE_STATUS = this.checkStatus
   var MEETING_TYPE = this.checkType
   this.isShowLoading = true
   this.$http.post(global.httpsUrl + '/Meet/GetMeetList', {'HumanId': global.userid, 'KEY': this.meetName, 'APPROVE_STATUS': APPROVE_STATUS, 'MEETING_TYPE': MEETING_TYPE, 'START_DATE': this.startTime, 'STOP_DATE': this.stopTime, 'PageIndex': this.PageIndex, 'PageSize': '2'}).then(response => {
   // sucess callback
    console.log('111')
    var data = response.body.Data
    if (isEmpty) {
     this.lists = []
     this.show = false
    } else {
     if (data && data.length === 0) {
      this.showToast = true
      this.isShowLoading = false
      this.scrollerStatus.pullupStatus = 'disabled' // 禁用下拉
      return
     }
    }
    for (var i = 0; i < data.length; i++) {
     if (data[i].APPROVE_STATUS < 20) {
      break
     }
     var personName = data[i].PERSION1_NAME
     if (personName && personName.length > 0) {
      personName = personName.substring(0, personName.indexOf('>'))
     }
     var meetlist = []
     var obj = {
      label: '地點',
      value: data[i].ADDRESS
     }
     meetlist.push(obj)
     obj = {
      label: '主持人',
      value: personName
     }
     meetlist.push(obj)
     obj = {
      label: '召開時間',
      value: global.formatDate.methods.toSet(data[i].ACT_START_TIME, 'yyyy-MM-dd HH:mm')
     }
     meetlist.push(obj)
     obj = {
      label: '會議類型',
      value: data[i].MEETING_TYPE_NAME
     }
     meetlist.push(obj)
     meetlist.id = 'FromMeet/' + data[i].MEETING_MINUTES_GUID + '/123'
     meetlist.name = data[i].MEETING_NAME
     var vstatus = '審批中'
     if (data[i].APPROVE_STATUS === 50) {
      vstatus = '審批通過'
     }
     meetlist.status = vstatus
     this.lists.push(meetlist)
    }
    this.isShowLoading = false
    if (!isEmpty) {
     this.scrollerStatus.pullupStatus = 'default'
     // this.$refs.scroller.reset()
     console.log(this.scrollerStatus.pullupStatus)
     this.$nextTick(() => {
      this.$refs.scroller.reset()
     })
    }
   }, response => {
   // error callback
    this.show = false
   })
  },
  showSearch () {
   this.show = true
  },
  change (val) {
   console.log('change', val)
   console.log(this.startTime)
  },
  change2 (val) {
   console.log('change', val)
  },
  resultClick () {
  },
  getResult () {
  },
  toSearch () {
   console.log(2222)
   if (this.startTime && this.stopTime && this.startTime > this.stopTime) {
    this.isShowAlert = true
   } else {
    this.PageIndex = 0
    this.getMeetList(true)
   }
  },
  selPullUp () {
   console.log('上拉刷新數(shù)據(jù)')
   this.PageIndex++
   this.getMeetList(false)
  },
  getMeetType () {
   this.$http.post(global.httpsUrl + '/Meet/GetMeetType').then(response => {
    // sucess callback
    var data = response.body.Data
    for (var i = data.length - 1; i >= 0; i--) {
     var obj = {
      key: data[i].TYPE_GUID,
      value: data[i].TYPE_NAME
     }
     this.meetType.push(obj)
    }
   }, response => {
   // error callback
   })
  }
 },
 activated () {
  this.$refs.scroller.reset()
 }
}
</script>

 <style lang="less">
@import '~vux/src/styles/1px.less';

.flex-demo {
 text-align: center;
 color: #fff;
 background-color: #20b907;
 border-radius: 4px;
 background-clip: padding-box;
}
</style>

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上面是我整理給大家的，希望今后會對大家有幫助。

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