uniapp picker多列选择器定义年月日时分秒组件

dateTimePicker.js

/**
 * 自定义多列时间选择器
 */
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
  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 || 2000;
  var end = endYear || 2100;
  // 默认开始显示数据
  var defaultDate = date ? [...date.split(' ')[0].split('-'), ...date.split(' ')[1].split(':')] : 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);
 
  dateTimeArray.forEach((current, index) => {
    dateTime.push(current.indexOf(defaultDate[index]));
  });
 
  return {
    dateTimeArray: dateTimeArray,
    dateTime: dateTime
  }
}
/**格式化日期 */
function generateTimeStr(dateTimeArray, dateTime) {
  const timeStr =
    dateTimeArray[0][dateTime[0]] +
    "-" +
    dateTimeArray[1][dateTime[1]] +
    "-" +
    dateTimeArray[2][dateTime[2]] +
    " " +
    dateTimeArray[3][dateTime[3]] +
    ":" +
    dateTimeArray[4][dateTime[4]] +
    ":" +
    dateTimeArray[5][dateTime[5]];
  return timeStr;
}
module.exports = {
   dateTimePicker,
   getMonthDay,
   generateTimeStr
};
//export default {
//  dateTimePicker: dateTimePicker,
//  getMonthDay: getMonthDay,
//  generateTimeStr: generateTimeStr,
//};

uniapp页面中引用

<picker mode="multiSelector" :value="dateTime" @change="changeDateTime"  @columnchange="changeDateTimeColumn" :range="dateTimeArray">
	<view class='lableBox' style='margin-top:40rpx;'>
		<view class="otherCheck">{{timeStr}}</view>
	</view> 
</picker>
 
 
<script>
	const { dateTimePicker,getMonthDay,generateTimeStr} = require('../../untils/dateTimePicker.js');
	export default {
		data() {
			return {
				dateTime: null,
				dateTimeArray: null,
				startYear: 2000,
                timeStr:''
			}
		},
		onLoad() {
			this.initTime()
		},
		methods: {
			initTime(){
				let date = new Date();
				let endYear = date.getFullYear();
				// 获取完整的年月日 时分秒，以及默认显示的数组
				let obj = dateTimePicker(this.startYear, endYear);
				// 精确到分的处理，将数组的秒去掉
				// let lastArray = obj.dateTimeArray.pop();
				// let lastTime = obj.dateTime.pop();
 
				this.dateTimeArray=obj.dateTimeArray
				this.dateTime=obj.dateTime
			},
			changeDateTime(e) {
			    this.dateTime = e.detail.value;
                this.timeStr= generateTimeStr(this.dateTimeArray,this.dateTime);
                //ios时间不能用'-'解析成时间戳
			 },
            /*年,月切换时重新更新计算*/
			changeDateTimeColumn(e) {
				//let {id} = e.target;
				let {column,value} = e.detail;
				if(column==0 || column==1){
                    //直接修改数组下标视图不更新,用深拷贝之后替换数组
					let dateTime = JSON.parse(JSON.stringify(this.dateTime));
                    let dateTimeArray = JSON.parse(JSON.stringify(this.dateTimeArray));
					dateTime[column] = value;
					dateTimeArray[2] = getMonthDay(dateTimeArray[0][dateTime[0]], dateTimeArray[1][dateTime[1]]);
                    this.dateTime = dateTime;
                    this.dateTimeArray = dateTimeArray;
				}
			},
		}
	}
</script>

参考：https://blog.youkuaiyun.com/Arbort_/article/details/109485133