微信小程序多列表渲染数据开关互不影响

<!--pages/list/list.wxml-->
<wxs src="../../utils/filter.wxs" module="filter" />
<view class="list">
    <view wx:for="{{list}}" wx:key="{{index}}" class="ban" data-main='{{index}}'>
        <view class="time">{{filter.replaceStar(index)}}</view>
        <view wx:for="{{item}}" wx:key="*this"  class="cen ovf"  data-id='{{item.id}}'  data-index='{{index}}'  >
            <navigator url="../details/details?id={{item.id}}" open-type="navigate" class="ovf  item_1">
               <view>
                       <view class="name">{{item.ymname}}</view>
                       <view class="msg">{{item.ymms}}</view>
               </view>
            </navigator>
            <view class="check ovf">
                    <view   id="jl" bindtap='cancle' wx:if="{{item.seleced==1}}"  data-fid='{{item.fid}}'  data-id='{{item.id}}'  data-index='{{index}}'>已记录</view>
                    <picker mode="date" data-id='{{item.id}}'  data-index='{{index}}' data-fid='{{item.fid}}' bindchange="bindDateChange" bindcancel="bindcancel" class="item_2" name="picker" wx:if="{{item.seleced!=1}}">
                      <view id="jl" bindchange="checkboxChange" value='{{date}}'>记录</view>
                    </picker>
                    <view class="zi" wx:if="{{item.seleced==1}}">{{item.time}}</view>
            </view>
        </view>
    </view>
</view>
<view class="fix" bindtap='wait'>
    <text>查看待\n打疫苗</text>
</view>


// pages/list/list.js
const app = getApp()
var time =''
Page({
  data: {
    id:0,
    list: [],
    date:'',
    tr:'',
    s:''
  },
  //事件处理函数
  // bindcancel:function (e) {
  //   var that = this
  //   console.log(e.target.dataset.id)
  //   that.setData({
  //     tr: 1,
  //   })
  // },
  bindDateChange:function (e) {
    console.log('picker发送选择改变，携带值为', e.detail.value)
    time = e.detail.value
    var that = this
    var arr = that.data.list
    var index = e.target.dataset.index
    var index1 = e.target.dataset.fid
    arr[index1][index].seleced = 1
    arr[index1][index].time = e.detail.value
    that.setData({
      id: e.target.dataset.id,
      date: time,
      list: arr
    })
  },
  cancle:function (e) {
    var that = this
    var arr = that.data.list
    var index = e.target.dataset.index
    var index1 = e.target.dataset.fid
    arr[index1][index].seleced = ''
    that.setData({
      id: e.target.dataset.id,
      list: arr
    })
  },
  wait:function () {
    wx.navigateTo({
      url: '../wait/wait'
    })
  },
  lis: function () {
      wx.navigateTo({
        url: '../archives/archives'
      })
    },
  onLoad: function () {
    var that = this
    wx.request({
      url: 'https://m.renyiwenzhen.com/xcx_ajax.php?action=yimiaolist', //仅为示例，并非真实的接口地址
      method: 'post',
      header: {
        'content-type': 'application/json' // 默认值
      },
      success(res) {
        console.log(res.data)
        that.setData({
          list: res.data
        })
      }
    })
  }
})
总结：
这里使用了双层循环，需要注意的是使用wx:key='*this'循环本身
使用wx:if="{{item.seleced==1}}"标记点击效果，给数据自定义属性

arr[index1][index].seleced = 1

作者：Vam的金豆之路

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