uniapp微信小程序 选择日期时间

一。根据需要点击选择时间日期，效果如下图：

（1）新建一个dateTimePicker.js文件

function withData(param){
  return param < 10 ? '0' + param : '' + param;
}
function getLoopArray(start,end){
  var start = start || 0;
  var end = end || 1;
  var array = [];
  for (var i = start; i <= end; i++) {
    array.push(withData(i));
  }
  return array;
}
function getMonthDay(year,month){
  var flag = year % 400 == 0 || (year % 4 == 0 && year % 100 != 0), array = null;

  switch (month) {
    case '01':
    case '03':
    case '05':
    case '07':
    case '08':
    case '10':
    case '12':
      array = getLoopArray(1, 31)
      break;
    case '04':
    case '06':
    case '09':
    case '11':
      array = getLoopArray(1, 30)
      break;
    case '02':
      array = flag ? getLoopArray(1, 29) : getLoopArray(1, 28)
      break;
    default:
      array = '月份格式不正确，请重新输入！'
  }
  return array;
}
function getNewDateArry(){
  // 当前时间的处理 年月日时分秒
  var newDate = new Date();
  var year = withData(newDate.getFullYear()),
      mont = withData(newDate.getMonth() + 1),
      date = withData(newDate.getDate()),
      hour = withData(newDate.getHours()),
      minu = withData(newDate.getMinutes());
      seco = withData(newDate.getSeconds());
  return [year, mont, date, hour, minu,seco];
}
function dateTimePicker(startYear,endYear,date) {
  // 返回默认显示的数组和联动数组的声明
  var dateTime = [], dateTimeArray = [[],[],[],[],[],[]];
  var start = startYear || 1978;
  var end = endYear || 2100;

 //处理传过来的字符串转化为数组
 let dataArr = date.split(" ")[0].split('/')
 let time = date.split(" ")[1].split(':')
  // 默认开始显示数据 如果把自定义值传过来的话就使用自定义时间 否则用当前时间  ...dataArr数组解构
  var defaultDate = date ? [...dataArr, ...time] : getNewDateArry();

  // 处理联动列表数据
  /*年月日 时分秒*/
  dateTimeArray[0] = getLoopArray(start,end);
  dateTimeArray[1] = getLoopArray(1, 12);
  dateTimeArray[2] = getMonthDay(defaultDate[0], defaultDate[1]);
  dateTimeArray[3] = getLoopArray(0, 23);
  dateTimeArray[4] = getLoopArray(0, 59);
  dateTimeArray[5] = getLoopArray(0, 59);

 //遍历dateTimeArray数组
  dateTimeArray.forEach((current,index) =>{
  //匹配defaultDate[index]值在current数组中的位置
    dateTime.push(current.indexOf(defaultDate[index]))
  });

  return {
    dateTimeArray: dateTimeArray,
    dateTime: dateTime
  }
}
module.exports = {
  dateTimePicker: dateTimePicker,
  getMonthDay: getMonthDay
}

（2）需要用到的页面中

<view class="warning-form-item">
      <view class="warning-title">上门时间</view>
      <picker class="warning-input" mode="multiSelector" :range="dateTimeArray" v-model="dateTime" @change="change" @columnchange="columnchange">
          <view class="inp-box">
               <input type="text" disabled="true" v-model="upTower" placeholder="请选择时间" placeholder-class="inputPlace" />
          </view>
      </picker>
</view>

（3）引入js文件，并调取方法

const dateTimePicker = require('@/utils/dateTimePicker.js')
onLoad(){
　　let date = new Date(),
    Y = date.getFullYear() + '/',
    M = (date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1) + '/',
    D = date.getDate() + ' ',
    h = '10' + ':',
   //   m = date.getMinutes() + ':',
    // s = date.getSeconds()
    m = '00'+ ':',
    s = '00';
    let arr = Y+M+D + h + m +s

    let obj = dateTimePicker.dateTimePicker(this.startYear, this.endYear,arr)
    this.dateTimeArray = obj.dateTimeArray
    this.dateTime = obj.dateTime
}
method:{

//时间格式化
withData(param){
　　return param < 10 ? '0' + param : '' + param;
},
change(e){
　　let value = []
　　e.detail.value.forEach((val,index) => {
　　　　value.push(this.withData(val))
　　})
　　console.log(value,'value')
　　let m = Number(value[1])+1 ;
　　let d = Number(value[2])+1 ;
　　if(m<10) m = '0'+m
　　if(d<10) d = '0'+d

　　let dateArray = "20" + value[0] + "-" + m + "-" + d + " " + value[3] + ":" + value[4]+ ":" + value[5]
　　this.upTower = dateArray
　　console.log(this.upTower,'this.upTower')
　　this.form.visitTime = dateArray
},
columnchange(e){
　　let dateArr = this.dateTimeArray
　　let arr = this.dateTime
　　//滑动所在列的数据并对其值进行更新
　　arr[e.detail.column] = e.detail.value
　　//更新展示月份对应的天数（28 or 29 or 30 or 31）
　　dateArr[2] = dateTimePicker.getMonthDay(dateArr[0][arr[0]], dateArr[1][arr[1]])
　　//最后把最新的数值赋值到dateTimeArray
　　this.dateTimeArray = dateArr
　　this.dateTime = arr
},

}

二。根据需要点击选择日期，效果如下：

<view class="warning-form-item">
    <view class="warning-title">选择时间</view>
    <view class="uni-list-cell-db warning-inputs">
        <picker mode="date" :value="date" :start="startDate" :end="endDate"  @cancel="cancel" @change="bindDateChange">
              <view class="pick_item">
                   <view :class="is_writez? 'uni-input':'clo-color' ">{{unitData}}</view>
              </view>
        </picker>
    </view>
    <image class="per-shimg" src="../../../static/images/more_n.png" mode="">
</view>

bindDateChange(e) {
    this.is_writez = true
    this.date = e.detail.value
    this.unitData = this.date
    this.visitor.checkInTime = this.unitData
},
cancel(){
    this.unitData = "选择时间"
    this.date = ''
},