微信小程序搜索分页功能实现

这里以搜索歌曲为例：

前端：

<view class="search">    <view class="search-bar">      <view class="search-wrap">          <icon type="search" size="16" class="icon-search" />          <input type="text" placeholder="请输入搜索内容" class="search-input" name="searchKeyword" bindinput="bindKeywordInpu手机软件开发
t" value="{{searchKeyword}}" />      </view>      <view class="search-cancel" bindtap="keywordSearch">搜索</view>    </view>    <view class="search-result">      <scroll-view scroll-y="true" bindscrolltolower="searchScrollLower">        <view class="result-item" wx:for="{{searchSongList}}" wx:key="unique"  data-data="{{item}}" >          <view class="icon{{item.isonly=='0' ? ' nocopyright' : ''}}"></view>          <text class="title">{{item.SongName}}--{{item.SingerName}}</text>          <view class="subtitle">            <text>{{item.SingerName}}</text>          </view>        </view>        <view class="loading" hidden="{{!searchLoading}}">正在载入更多...</view>        <view class="loading complete" hidden="{{!searchLoadingComplete}}">已加载全部</view>      </scroll-view>      </view>  </view>

样式：

page{    display: flex;    flex-direction: column;    height: 100%;  }    /*搜索*/  .search{    flex: auto;    display: flex;    flex-direction: column;    background: #fff;  }  .search-bar{    flex: none;    display: flex;    align-items: center;    justify-content: space-between;    padding: 20rpx;    background: #f4f4f4;  }  .search-wrap{    position: relative;    flex: auto;    display: flex;    align-items: center;    height: 80rpx;    padding: 0 20rpx;    background: #fff;    border-radius: 6rpx;  }  .search-wrap .icon-search{    margin-right: 10rpx;  }  .search-wrap .search-input{    flex: auto;    font-size: 28rpx;  }  .search-cancel{    padding: 0 20rpx;    font-size: 28rpx;  }    /*搜索结果*/  .search-result{    flex: auto;    position: relative;  }  .search-result scroll-view{    position: absolute;    bottom: 0;    left: 0;    right: 0;    top: 0;  }  .result-item{    position: relative;    display: flex;    flex-direction: column;    padding: 20rpx 0 20rpx 110rpx;    overflow: hidden;    border-bottom: 2rpx solid #e5e5e5;  }    .result-item .media{    position: absolute;    left: 16rpx;    top: 16rpx;    width: 80rpx;    height: 80rpx;    border-radius: 999rpx;  }  .result-item .title,  .result-item .subtitle{    overflow: hidden;    text-overflow: ellipsis;    white-space: nowrap;    line-height: 36rpx;  }  .result-item .title{    margin-bottom: 4rpx;    color: #000;  }  .result-item .subtitle{    color: #808080;    font-size: 24rpx;  }  .result-item:first-child .subtitle text{    margin-right: 20rpx;  }  .result-item:not(:first-child) .subtitle text:not(:first-child):before{    content: '/';    margin: 0 8rpx;  }  .loading{    padding: 10rpx;    text-align: center;  }  .loading:before{    display: inline-block;    margin-right: 5rpx;    vertical-align: middle;    content: '';    width: 40rpx;    height: 40rpx;    /* background: url(../../images/icon-loading.png) no-repeat;   */  background-size: contain;    animation: rotate 1s linear infinite;  }  .loading.complete:before{    display: none;  }

js:

var util = require('../../utils/util.js')Page({  data: {    searchKeyword: '',  //需要搜索的字符      searchSongList: [], //放置返回数据的数组      isFromSearch: true,   // 用于判断searchSongList数组是不是空数组，默认true，空的数组      searchPageNum: 1,   // 设置加载的第几次，默认是第一次      callbackcount: 15,      //返回数据的个数      searchLoading: false, //"上拉加载"的变量，默认false，隐藏      searchLoadingComplete: false  //“没有数据”的变量，默认false，隐藏    },  //输入框事件，每输入一个字符，就会触发一次    bindKeywordInput: function (e) {    console.log("输入框事件")    this.setData({      searchKeyword: e.detail.value    })  },  //搜索，访问网络    fetchSearchList: function () {    let that = this;    let searchKeyword = that.data.searchKeyword,//输入框字符串作为参数        searchPageNum = that.data.searchPageNum,//把第几次加载次数作为参数        callbackcount = that.data.callbackcount; //返回数据的个数      //访问网络      util.getSearchMusic(searchKeyword, searchPageNum, callbackcount, function (data) {      console.log(data)      //判断是否有数据，有则取数据        if (data.status != 0) {        let searchList = [];        //如果isFromSearch是true从data中取出数据，否则先从原来的数据继续添加          that.data.isFromSearch ? searchList = data.data.lists : searchList = that.data.searchSongList.concat(data.data.lists)        that.setData({          searchSongList: searchList, //获取数据数组             //存放歌手属性的对象            // searchLoading: true   //把"上拉加载"的变量设为false，显示          });        //没有数据了，把“没有数据”显示，把“上拉加载”隐藏        } else {        that.setData({          searchLoadingComplete: true, //把“没有数据”设为true，显示            searchLoading: false  //把"上拉加载"的变量设为false，隐藏          });      }    })  }, //点击搜索按钮，触发事件    keywordSearch: function (e) {    this.setData({      searchPageNum: 1,   //第一次加载，设置1        searchSongList: [],  //放置返回数据的数组,设为空        isFromSearch: true,  //第一次加载，设置true        searchLoading: true,  //把"上拉加载"的变量设为true，显示        searchLoadingComplete: false //把“没有数据”设为false，隐藏      })    this.fetchSearchList();  },  //滚动到底部触发事件    searchScrollLower: function () {    let that = this;    if (that.data.searchLoading && !that.data.searchLoadingComplete) {      that.setData({        searchPageNum: that.data.searchPageNum + 1,  //每次触发上拉事件，把searchPageNum+1          isFromSearch: false  //触发到上拉事件，把isFromSearch设为为false        });      that.fetchSearchList();    }  }})              
              

            
微信小程序,搜索分页功能