uniapp——基于picker实现年月日时分秒选择器deno效果（整理）_uniapp picker组件 年月日时分秒

在ios上’-‘没法被解析为时间戳的解决方案，使用正则将’-‘替换为’/'。安卓，pc端，ios端均可适配。
代码如下：

//解决ios中不能用'-'解析成时间戳问题
let dateStr  = '2021-04-26 10:26:14'
let newDataStr = dateStr.replace(/\.|\-/g, '/')
let date = new Date(newDataStr);
let timestamp = date.getTime();
console.log(timestamp)
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date.js文件

/**
 * 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
  }
}
 
module.exports = {
  dateTimePicker: dateTimePicker,
  getMonthDay: getMonthDay
}
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vue文件

<template>
	<view class="choose-value-box row column-me">
		<status-bar title="卡券管理" :showBack="true" :bgColor="false" class="home-data"></status-bar>
		<picker mode="multiSelector" :value="dateTime" @change="changeDateTime" @columnchange="changeDateTimeColumn"
			:range="dateTimeArray">
			<view class='lableBox'>
				<view class="choose-value">{{timeStr}}</view>
			</view>
		</picker>
	</view>
</template>

<script>
	const {
		dateTimePicker,
		getMonthDay
	} = require('@/components/time.js');
	export default {
		data() {
			return {
				dateTime: null,
				dateTimeArray: null,
				startYear: 2000,
				timeStr: '请选择'
			}
		},

		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
				// this.timeStr = this.createTimeStr(this.dateTimeArray, this.dateTime);
			},

			changeDateTime(e) {
				this.dateTime = e.detail.value;
				// this.timeStr = this.createTimeStr(this.dateTimeArray, this.dateTime);
				var aa = this.createTimeStr(this.dateTimeArray, this.dateTime);
				this.timeStr = aa.replace(/\.|\-/g, '/');
			},

			/*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;
				}
			},

			createTimeStr(dateTimeArray, dateTime) {
				let 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]
				];
				console.log(timeStr, '93-timeStr')
				return timeStr
			},
		}
	}
</script>

<style>
</style>

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