【微信小程序】拍卖商品详情页设计与交互实现(包含倒计时、实时更新出价)

android 文章 2022-07-24 00:00 0 全屏看文

完整功能和页面

 1、goods.wxml代码

<!--商品详情页-->
<view class="container">
  <scroll-view class="main" scroll-y="true">
    <!--顶部轮播图-->
    <swiper autoplay="true" indicator-dots="true">
      <block wx:for="{{goodsInfo.images}}" wx:key="index">
        <swiper-item>
          <image src="{{item}}" mode="heightFix"></image>
        </swiper-item>
      </block>
    </swiper>
    <!--商品标题价格栏-->
    <view class="goodsPrice">
      <view style="margin-left: 30rpx;display: flex;align-items: center;">
        <image src="/image/goodsPrice.png" style="width: 30rpx;height: 30rpx;"></image>
        <text style="color: rgb(179, 6, 41);font-size: 50rpx;">{{goodsInfo.current_price}} </text>
        <!--倒计时-->
        <text wx:if="{{clock == '已经截止'}}" style="margin-left: 60%;color: crimson;">{{clock}}</text>
        <text wx:else="" style="margin-left: 12%;font-size: 45rpx;color: crimson;">{{clock}}</text>
      </view>

      <view style="display: flex;overflow: hidden;white-space: nowrap;text-overflow: ellipsis; align-items: center;">
        <text style="font-size: 30rpx;margin-left: 30rpx;">起拍价 {{goodsInfo.start_price}}</text>
        <image src="{{publisher.avatarUrl}}" style="width: 50rpx;height: 50rpx;border-radius: 50%;margin-left: 35%;"></image>
        <text style="font-size: 30rpx;margin-left: 10epx;" decode="true">&nbsp; {{publisher.nickName}} </text>
      </view>

      <view>
        <text style="margin-left: 30rpx;"> {{goodsInfo.name}} </text>
      </view>
    </view>
    <!--商品发布者和竞拍记录-->
    <scroll-view class="goodsAuctionRecord">
      <view style="text-align: center;">
        <text style="font-size: 40rpx;color: chocolate;">出价记录</text>
      </view>
      <!--出价的用户-->
      <block wx:for="{{auctionRecord}}" wx:key="index">
        <view>
          <text style="font-size: 24rpx;">{{item.auctionTimeFormat}}</text>
          <image src="{{item.userInfo.avatarUrl}}" style="width: 40rpx;height: 40rpx;border-radius: 50%;margin-left: 5%;"></image>
          <text decode="true"> {{item.userInfo.nickName}}&nbsp;出价了</text>
          <text style="color: crimson; font-size: 40rpx;">{{item.putPrice}} 元</text>
        </view>
      </block>

    </scroll-view>
    <!--商品详情描述-->
    <view class="describe">
      <rich-text>{{goodsInfo.describe}}<ich-text>
    </view>
  </scroll-view>
  <!--底部-->
  <view class="bottomContainer">
    <view>
      <image src="/image/jianhao.png" class="changePriceIcon" bindtap="downPrice"></image>
      <text class="addPrice">{{changePrice}}元</text>
      <image src="/image/add.png" class="changePriceIcon" style="width: 67rpx;height: 67rpx;margin-left: 36%;" bindtap="addPrice"></image>
      <text style="height: 100rpx;float: right;padding: 20rpx 40rpx;color: white;" bindtap="putPrice">出个价</text>
    </view>
  </view>
</view>

2、goods.wxss代码

.container {
  bottom: 0;
  top: 0;
  left: 0;
  right: 0;
  position: fixed;
  width: 100%;
  height: 100%;
  background-color: rgba(232, 234, 235, 0.89);
}

.main {
  width: 100%;
  height: 93%;
  top: 0;
  position: absolute;
  flex: 1;
  background-color: rgb(221, 221, 204);
}

swiper {
  height: 430rpx;
  background-color: white;
}

swiper-item {
  text-align: center;
  width: 100%;
  height: 100%;
}

swiper-item image {
  border-radius: 15rpx;
  height: 100%;
}

.goodsPrice {
  margin-top: 15rpx;
  width: 96%;
  margin-left: 2%;
  border-radius: 25rpx;
  border: aliceblue solid 1px;
  background-color: aliceblue;
  box-shadow: 4px 4px 15px rgb(180, 223, 202);
}

.goodsAuctionRecord {
  margin-top: 15rpx;
  width: 96%;
  height: auto;
  margin-left: 2%;
  border-radius: 25rpx;
  border: rgb(235, 238, 241) solid 1px;
  background-color: aliceblue;
  box-shadow: 4px 4px 15px rgb(180, 223, 202);
}

.describe {
  margin-top: 15rpx;
  width: 96%;
  margin-left: 2%;
  border-radius: 25rpx;
  border: rgb(235, 238, 241) solid 1px;
  background-color: aliceblue;
  box-shadow: 4px 4px 15px rgb(180, 223, 202);
}

.bottomContainer {
  position: absolute;
  top: 93%;
  width: 100%;
  height: 5%;
  white-space: nowrap;
  word-break:keep-all;
}

.addPrice {
  position: fixed;
  background-color: rgb(8, 8, 8);
  color: white;
  border-radius: 30px;
  margin-left: 4%;
  margin-top: 17rpx;
  padding: 10rpx 10% 10rpx 10%;
}
.changePriceIcon{
  width: 60rpx;
  height: 60rpx;
  margin-left: 4%;
  padding-top: 12rpx;
}

3、goods.js代码

var goods_id
var myTime //计数器
Page({

  data: {
    goodsInfo: null,
    publisher: null,
    auctionRecord: null,
    clock: '', changePrice: null //出价  }, onLoad(options) { let goodsId = options.goodsid //将id存起来给onshow用 goods_id = goodsId //获取商品信息 this.getGoodsInfo(goodsId) //倒计时 this.countdown(goodsId) }, onShow() { this.getGoodsInfo(goods_id) this.getAuctionRecord() }, onUnload() { //清楚计时器  clearInterval(myTime) }, onHide() { //清楚计时器  clearInterval(myTime) }, //查询所有商品  getGoodsInfo(goodsId) { wx.cloud.database().collection('goods').doc(goodsId).get({ success: (res) => { this.setData({ goodsInfo: res.data, changePrice: res.data.current_price + 1 }) //根据发布者id去用户表中查询商品发布者信息 wx.cloud.database().collection('userInfo').doc(res.data.publisher_id).get({ success: (res) => { this.setData({ publisher: res.data }) } }) } }) }, //底部加减价格  addPrice() { var price = this.data.changePrice price++ this.setData({ changePrice: price }) }, downPrice() { var price = this.data.changePrice if (price > this.data.goodsInfo.current_price + 1) { price-- this.setData({ changePrice: price }) } else { wx.showToast({ title: '出价应当高于当前价!', icon: 'none' }) } }, //竞拍者出价  putPrice() { //获取出价 let price = this.data.changePrice //获取出价用户 let userInfo = wx.getStorageSync('userInfo') //获取出价时间 let nowTime = new Date().getTime() //转化为时间格式 var util = require("../../util/time_transform.js") let timeFormat = util.js_date_time(nowTime) //弹窗确认  wx.showModal({ title: '确认出价', content: '价高者得,竞拍结束价高者可在竞拍记录中查看卖家联系信息,感谢您的参与!', success: (res) => { if (res.confirm) { wx.showLoading({ title: '正在出价...', }) //保存竞拍记录到数据库 wx.cloud.database().collection('goodsAuctionRecord').add({ data: { goodsID: goods_id, userInfo: userInfo, putPrice: price, auctionTime: nowTime, auctionTimeFormat: timeFormat }, success: res => {} }), //更新当前价 wx.cloud.database().collection('goods').doc(goods_id).update({ data: { current_price: price } }) let _this = this setTimeout(function () { wx.hideLoading({ success: (res) => { //刷新页面数据  _this.onShow() } }) }, 1000) } else { console.log('取消') } } }) }, //获取商品用户竞拍记录  getAuctionRecord() { wx.cloud.database().collection('goodsAuctionRecord').where({ goodsID: goods_id }).get({ success: (res) => { this.setData({ auctionRecord: res.data }) } }) }, //获取竞拍结束时间,并计算倒计时  countdown(goodsId) { wx.cloud.database().collection('goods').doc(goodsId).get({ success: res => { //取出竞拍结束时间,精确到秒 let auctionEndtime = res.data.end_time console.log(res) //获取当前系统时间,只精确到秒 var nowTime = new Date().getTime() / 1000 //剩余时间总的秒数 var totalSecond = Math.floor(auctionEndtime - nowTime) console.log('剩余秒数', totalSecond) //计算倒计时 this.doCountdown(totalSecond) } }) }, //计算商品倒计时  doCountdown(totalSecond) { let _this = this //每隔一秒执行一次代码 myTime = setInterval(function () { //如果竞拍已经结束 if (totalSecond < 0) { _this.setData({ clock: '已经截止' }) clearInterval(myTime) return } else { //执行计算 var time = _this.formatTime(totalSecond) _this.setData({ clock: '剩余' + time }) } totalSecond--; }, 1000) }, //倒计时时间格式化  formatTime(totalSecond) { //剩余天数 var day = Math.floor(totalSecond / 3600 / 24) /天后剩余小时数 var hour = Math.floor(totalSecond / 3600 % 24) /天n小时后剩余分钟数 var min = Math.floor(totalSecond / 60 % 60) /天n小时n分钟后剩余秒数 var sec = Math.floor(totalSecond % 60) return day + "天" + hour + "小时" + min + "分" + sec + "秒" } })

4、时间转化js代码

 在util 下面新建一个time_transform.js文件

//时间戳转换成日期时间,传入时间精确到毫秒
function js_date_time(unixtime) {
  var date = new Date(unixtime) 
  var y = date.getFullYear();
  var m = date.getMonth() + 1;
  m = m < 10 ? ('0' + m) : m;
  var d = date.getDate(); d = d < 10 ? ('0' + d) : d; var h = date.getHours(); h = h < 10 ? ('0' + h) : h; var minute = date.getMinutes(); var second = date.getSeconds(); minute = minute < 10 ? ('0' + minute) : minute; second = second < 10 ? ('0' + second) : second; return y + '-' + m + '-' + d + ' ' + h + ':' + minute + ':' + second;//年月日时分秒 // return y + '-' + m + '-' + d + ' ' + h + ':' + minute; // return y + '-' + m + '-' + d; } module.exports = { js_date_time: js_date_time }

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