Vue?vant-ui框架實(shí)現(xiàn)上拉加載下拉刷新功能

更新時(shí)間：2022年09月07日 11:03:45 作者：船長(zhǎng)在船上

功能需求——獲取后端接口返回的數(shù)據(jù)，實(shí)現(xiàn)列表數(shù)據(jù)上滑加載更多下一頁(yè)數(shù)據(jù)，下拉數(shù)據(jù)刷新功能，結(jié)合vant-ui框架實(shí)現(xiàn)?？芍苯訁⒖际褂?/div>

知識(shí)點(diǎn)速記

基本用法

List通過loading和finished兩個(gè)變量控制加載狀態(tài)，當(dāng)組件滾動(dòng)到底部時(shí)，會(huì)觸發(fā)load事件并將loading設(shè)置成true。此時(shí)可以發(fā)起異步操作并更新數(shù)據(jù)，數(shù)據(jù)更新完畢后，將loading設(shè)置成false即可。若數(shù)據(jù)已全部加載完畢，則直接將finished設(shè)置成true即可。

下拉刷新

List 組件可以與PullRefresh組件結(jié)合使用，實(shí)現(xiàn)下拉刷新的效果。

注意事項(xiàng)：

v-model ：是否處于加載狀態(tài)，加載過程中不觸發(fā)load事件
finished：是否已加載完成，加載完成后不再觸發(fā)load事件
offset ：滾動(dòng)條與底部距離小于 offset 時(shí)觸發(fā)load事件
loading-text加載過程中的提示文字
finished-text加載完成后的提示文字

List有以下三種狀態(tài)，理解這些狀態(tài)有助于你正確地使用List組件：

非加載中，loading為false，此時(shí)會(huì)根據(jù)列表滾動(dòng)位置判斷是否觸發(fā)load事件（列表內(nèi)容不足一屏幕時(shí)，會(huì)直接觸發(fā)）
加載中，loading為true，表示正在發(fā)送異步請(qǐng)求，此時(shí)不會(huì)觸發(fā)load事件
加載完成，finished為true，此時(shí)不會(huì)觸發(fā)load事件

在每次請(qǐng)求完畢后，需要手動(dòng)將loading設(shè)置為false，表示加載結(jié)束

事件使用：@load方法

滾動(dòng)條與底部距離小于 offset 時(shí)觸發(fā)

代碼實(shí)現(xiàn)

1.頁(yè)面布局

<template>
  <div class="myOrder">
    <!--公共頭部組件-->
    <nav-bar-top :titleText="titleName" :arrowTrue="arrowTrue"></nav-bar-top>
   <!--主體部分-->
    <div class="tabMain" style="margin-top:0">
      <div v-if="noData" class="p30 text-center fontSize30">
         <van-empty class="custom-image" :image="zwdd"/>
      </div>
      <van-pull-refresh v-model="isLoading" @refresh="onRefresh" class="content" success-text="刷新成功">
        <!-- 加載 -->
        <van-list v-if="contractData.length>0" v-model="loading" :finished="finished" :immediate-check="false" finished-text="我也是有底線的"
          @load="onLoad" :offset="10">
          <van-row class="m30 p30 capaIttem" v-for="item in contractData" :key="item.orderId">
            <van-col span="24" class="fontSize30">
              <div class="focus-con">
                <!-- ellipsis-orderNumber -->
                <div class="focus-title">
                  <span class="color3 van-ellipsis">合同編號(hào)：{{item.contractNumber}}</span>
                  <!-- <span class="color3 van-ellipsis">{{item.outsideContractId?'訂單':'合同'}}編號(hào)：{{item.contractNumber}}</span> -->
                  <!-- <img src="../../assets/index/VIPICO.png" class="vipIcon pl20"> -->
                </div>
                <!-- 發(fā)票開具狀態(tài)(0:待申請(qǐng),1:待審核,2:審核未通過,3:審核已通過) -->
                <div>
                  <van-tag :text-color="item.status=='0'?'#FF9133':item.status=='1'?'#4972FF':item.status=='2'?'#F1403C':'#00CE80'" class="tagStyle">
                    {{item.status=="0"?"待申請(qǐng)":item.status=="1"?"待審核":item.status=="2"?"審核未通過":"審核通過"}}
                  </van-tag>
                </div>
              </div>
            </van-col>
            <van-col span="24" class="mt10">
              <div class="capa-box">
                <div class="focus-title" >
                  <span class="color3 shipName fontSize32">{{item.userName}}</span>
                </div>
              </div>
              <div class="capa-box">
                <div class="color6 flex align-items fontSize24 van-ellipsis ellipsis-content">
                  <img src="../../assets/img/huo.png" class="huoIcon mr5">
                  {{item.unlimitedLoading&&item.unlimitedLoading=="1"?"隨船裝/":""}}
                  <span class="" v-if="item.cargoWeight">{{item.cargoWeight}}噸/</span>
                  <span class="van-ellipsis">{{item.cargoName?item.cargoName:""}}</span>
                </div>
              </div>
            </van-col>
            <van-col span="24" class="capa-body">
              <div class="capa-con fontSize28">
                <div class="content-left">
                  <img src="../../assets/index/zhuang.png" alt="" class=" mr5">
                  <span>{{item.loadingPort}}</span>
                </div>
                <img src="../../assets/index/arrows.png" class="capa-jt">
                <div class="content-right">
                  <img src="../../assets/index/xie.png" alt="" class=" mr5">
                  <span>{{item.arrivePort}}</span>
                </div>
              </div>
              <div class="capa-time mt10">
                <div class="capa-time-left">
                  <div class="time-img">
                    <img src="../../assets/index/time.png" class="capaImg">
                    <span class="timeTXT fontSize28 pl10">裝貨時(shí)間</span>
                  </div>
                  <div class="timeColor fontSize34 mt10 timeError">
                    {{item.loadingTime?item.loadingTime:"暫無(wú)"}}
                  </div>
                </div>
                <div style="height:50px;border-left:1px solid #E1E1E1"></div>
                <div class="capa-time-right">
                  <div class="time-img priceContent">
                    <img src="../../assets/index/money.png" class="capaImg">
                    <span class="timeTXT fontSize28 pl10">合同金額</span>
                  </div>
                  <div>
                    <div class="timeColor fontSize34 mt10 floatRight">
                       <span v-if="item.contractAmount">
                         {{item.priceType=="0"?item.contractAmount+"元":item.priceType=="1"?item.contractAmount+"元/噸":item.contractAmount+"元"}}
                       </span>
                       <span v-else>暫無(wú)報(bào)價(jià)</span>
                    </div>
                  </div>
                </div>
              </div>
            </van-col>
            <van-col style="width:100%" class="mt20">
              <div class="flex flex-end">
                  <van-button plain type="info" class="borderRaduis" size="small" @click="handleLook(item)">查看合同</van-button>
                  <van-button v-show="item.status=='2'" plain type="info ml20" class="borderRaduis" size="small" @click="handleFail(item,item.invoiceId)">失敗原因</van-button>
                  <van-button class="ml20 borderRaduis" color="#024ee0" type="info" size="small">{{item.status=='2'?'重新申請(qǐng)':'申請(qǐng)開票'}}</van-button>
              </div>
            </van-col>
          </van-row>
        </van-list>
      </van-pull-refresh>
    </div>
</div>
</template>

2.樣式

.myOrder{
  height: 100vh;
  overflow-y: auto;
}
::v-deep.van-cell {
  font-size: 14px;
}
.capaIttem {
  box-shadow: 0px 0px 10px 0px rgba(0,0,0,0.06);
  border-radius: 24px;
  background: #fff;
  position: relative;
}
::v-deep.van-cell {
  padding: 10px 0;
}
::v-deep.van-cell {
  font-size: 40px;
  line-height: 40px;
  font-size: 30px;
}
 
::v-deep.van-field__left-icon .van-icon {
  font-size: 30px;
}
::v-deep.van-tag {
  font-size: 24px;
  line-height: 40px;
}
::v-deep.van-button--small {
  height: 60px;
  font-size: 24px;
}
::v-deep.van-tabs--line .van-tabs__wrap {
  height: 88px;
}
::v-deep.van-tab {
  font-size: 30px;
}
 
.searchBtnFixed {
  position: fixed;
  top: 0;
  left: 80px;
  height: 92px;
  line-height: 92px;
  z-index: 1000;
  width: 86%;
  overflow: hidden;
}
::v-deep.van-search {
  position: absolute;
  top: -8px;
  // padding: 13px;
  width: 100%;
}
::v-deep.van-search__content {
  background: #eeeeee;
  border-radius: 16px;
  padding: 5px 10px;
}
.focusSearch ::v-deep.van-icon-clear {
  padding-right: 160px;
}
// 搜索
.onSearch {
  position: absolute;
  right: 50px;
  top: 28px;
  font-size: 30px;
  height: 36px;
  line-height: 36px;
  border-left: 1px solid #cccccd;
  padding-left: 30px;
  color: #024ee0;
}
// 新增
.focus-con {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid #ebedf0;
  padding-bottom: 20px;
}
.capa-title {
  border-bottom: 1px solid #ebedf0;
  padding-bottom: 20px;
  display: flex;
  align-items: center;
}
.focus-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
}
.vipIcon {
  width: 72px;
  height: 34px;
}
.capa-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 10px;
}
.capa-body {
 
  background: #f5f8ff;
  border-radius: 0.13333rem;
  padding: 0.33333rem;
}
.capa-con {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
}
.content-left,
.content-right {
  display: flex;
  justify-content: space-between;
  align-items: center;
  img {
    width: 0.5rem;
    height: 0.5rem;
  }
}
.capa-time {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.time-img {
  display: flex;
  align-items: center;
}
.capaImg {
  width: 30px;
}
.timeColor {
  font-weight: 700;
  color: #024ee0;
}
.order-group {
  display: flex;
  align-items: center;
}
.ellipsis-orderNumber{
  span{
    display: inline-block;
    width: 310px;
  }
}
.ellipsis-txt {
  display: inline-block;
  max-width: 200px;
  text-align: start;
}
.shipName {
  font-weight: 600;
  display: flex;
  align-items: center;
}
.orderNameWidth{
  max-width: 220px;
}
.ellipsis-content{
  width: 400px;
}
.priceContent{
  display: flex;
  justify-content: flex-end;
}
.floatRight{
  float: right;
}
.borderRaduis {
  border-radius: 10px;
  height: 56px;
  .van-button__text {
    font-size: 26px;
  }
}
.huoIcon{
  width: 26px;
  height: 26px;
}
.tagStyle{
  background-color: #fff !important;
}
.contactTel {
  width: 90%;
  border-radius: 10px;
}
.popup-header{
  height: 100px;
  text-align: center;
  color:#fff;
  background: #024EE0;
  line-height: 100px;
}
.contactTel ::v-deep.van-popup__close-icon--top-right{
  top:26px !important;
  color:#fff !important;
}
.popup-box{
  margin:60px 50px 30px;
}
.popup-btn{
  width: 100%;
  border-radius: 20px;
  font-size: 36px;
}
.popupTitle {
  box-sizing: border-box;
  padding: 35px 0 61px 0;
  font-size: 32px;
  color: #333333;
  font-weight: 500;
}
.imgContent {
  display: flex;
  align-items: center;
  justify-content: space-around;
  flex-wrap: wrap;
  margin-bottom: 30px;
  padding: 0 10px;
  li {
    width: 125px;
    height: 125px;
    margin-bottom: 37px;
    background-color: black;
    margin-right: 25px;
  }
  li:nth-of-type(4n) {
    margin-right: 0;
  }
}

3.方法

data數(shù)據(jù)定義：

data() {
    return {
      zwdd:require("../../assets/img/zwdd.png"),
      titleName: "我要開票",
      arrowTrue: true,
      page: 1,
      pageSize: 10,
      isLoading: false,
      loading: false,
      finished: false,
      noData: false,
      contractData: [],
      timer:null,
    };
  },

加載更多方法onLoad：

// 加載更多
    onLoad() {
      this.loading = true;
      this.timer = setTimeout(() => {
        this.page++;
        this.getInvoicingContractListFun();
      }, 1000);
    },

下拉刷新方法onRefresh：下拉刷新調(diào)用接口，并且頁(yè)數(shù)=1

    // 刷新
    onRefresh() {
      this.isLoading = true;
      this.page = 1;
      if (this.contractData.length == 0) {
        this.isLoading = false;
      }
      this.getInvoicingContractListFun();
    },

處理數(shù)據(jù)列表方法getInvoicingContractListFun:

調(diào)用接口，傳遞相應(yīng)的參數(shù)，獲取到數(shù)據(jù)，去判斷處理數(shù)據(jù)數(shù)據(jù)的加載，數(shù)據(jù)合并操作，利用定義的loading、finished、isLoading控制數(shù)據(jù)上拉數(shù)據(jù)加載。

    // 數(shù)據(jù)列表方法
    getInvoicingContractListFun() {
      let params = {
        carrierUserId: this.id,
        pageNum: this.page,
        pageSize: this.pageSize
      };
      getInvoicingContractList(params)
        .then(res => {
          if (res.code == 200) {
            if (this.contractData.length > 0) {
              this.noData = false;
              //當(dāng)請(qǐng)求前有數(shù)據(jù)時(shí) 第n次請(qǐng)求
              if (this.loading) {
                // 上拉加載
                this.contractData = this.contractData.concat(res.data.records); //上拉加載新數(shù)據(jù)添加到數(shù)組中
                this.$nextTick(() => {
                  //在下次 DOM 更新循環(huán)結(jié)束之后執(zhí)行延遲回調(diào)
                  this.loading = false; //關(guān)閉上拉加載中
                });
                if (res.data.records.length == 0) {
                  //沒有更多數(shù)據(jù)
                  this.finished = true; //上拉加載完畢
                }
              }
              if (this.isLoading) {
                //關(guān)閉下拉刷新
                this.isLoading = false; //關(guān)閉下拉刷新中
                this.contractData = res.data.records; //重新給數(shù)據(jù)賦值
                if (this.finished) {
                  //如果上拉加載完畢為true則設(shè)為false。解決上拉加載完畢后再下拉刷新就不會(huì)執(zhí)行上拉加載問題
                  this.finished = false;
                }
              }
            } else {
              this.noData = false;
              this.loading = false;
              this.isLoading = false;
              this.finished = false;
              //當(dāng)請(qǐng)求沒有數(shù)據(jù)時(shí) 第一次請(qǐng)求
              if (res.data.records.length == 0) {
                this.noData = true;
              } else {
                this.contractData = res.data.records;
              }
            }
          } else {
            this.$toast(res.msg);
          }
        })
        .catch(error => {});
    },

created中調(diào)用方法獲取數(shù)據(jù)

created(){
    //方法調(diào)用
    this.getInvoicingContractListFun();
}

最后在beforeDestroy生命周期清除定時(shí)器

beforeDestroy() {
    clearTimeout(this.timer);
    this.timer = null;
}

到此這篇關(guān)于Vue vant-ui框架實(shí)現(xiàn)上拉加載下拉刷新功能的文章就介紹到這了,更多相關(guān)Vue vant-ui內(nèi)容請(qǐng)搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！

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Vue?vant-ui框架實(shí)現(xiàn)上拉加載下拉刷新功能

目錄

知識(shí)點(diǎn)速記

基本用法

下拉刷新

代碼實(shí)現(xiàn)

1.頁(yè)面布局

2.樣式

3.方法

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