1.實現(xiàn)效果

time.gif

2.實現(xiàn)原理

mode='multiSelector'多列選擇器

自定義范圍數(shù)組range

在這里插入圖片描述

3.實現(xiàn)代碼

<!--pages/jsCase/multiTime/index4.wxml-->
<view class="act_box">
  <view class="act_item flex j_b">
    <view class="nowp"><text class="require">*</text>
      開始時間：
    </view>
    <picker mode="multiSelector" value="{{start_time}}" data-type="start_time" data-param='start_time_p' bindchange="changeDateTime" bindcolumnchange="changeDateTimeColumn" range="{{dateTimeArray}}">
      <view class="flex-row act_right">
        <text wx:if="{{!start_time_p}}">請選擇</text>
        <text wx:else class="sel_text">{{start_time_p}}</text>
      </view>
    </picker>
  </view>
  <view class="act_item flex j_b">
    <view class="nowp"><text class="require">*</text>
      結束時間：
    </view>
    <picker mode="multiSelector" value="{{end_time}}" data-type="end_time" data-param='end_time_p' bindchange="changeDateTime" bindcolumnchange="changeDateTimeColumn" range="{{dateTimeArray}}">
      <view class="flex-row act_right">
        <text wx:if="{{!end_time_p}}">請選擇</text>
        <text wx:else class="sel_text">{{end_time_p}}</text>
      </view>
    </picker>
  </view>
</view>

/* pages/jsCase/multiTime/index4.wxss */
.act_item {
  width: 702rpx;
  background: #FFFFFF;
  border-radius: 16rpx;
  margin-bottom: 24rpx;
  box-sizing: border-box;
  padding: 24rpx;
  position: relative;
  font-size: 28rpx;
  color: #4D4D4D;
  font-weight: 500;
}

.require {
  color: #E9543E;
}

.nowp {
  white-space: nowrap;
  margin-right: 15rpx;
}

.act_right {
  display: flex;
  justify-content: flex-end;
  font-size: 28rpx;
  color: #999;
}

.act_item picker {
  flex: 1;
  margin-left: 40rpx;
}

.act_box {
  margin: 24rpx auto;
  width: 710rpx;
}

.sel_text {
  font-size: 28rpx;
  font-weight: 500;
  color: #4D4D4D;
}

// pages/jsCase/multiTime/index4.js
var dateTimePicker = require('../util/dateTimer.js');
Page({


  data: {
    end_time: '',
    start_time: '',
    dateTimeArray: '', //時間數(shù)組
    startYear: 2000, //最小年份
    endYear: 2050, // 最大年份
    start_time_p: '', //顯示的開始時間
    start_time_p: '', //顯示的結束時間
  },


  onLoad: function (options) {
    // 獲取完整的年月日 時分秒，以及默認顯示的數(shù)組
    var obj = dateTimePicker.dateTimePicker(this.data.startYear, this.data.endYear);
    this.setData({
      start_time: obj.dateTime,
      end_time: obj.dateTime,
      dateTimeArray: obj.dateTimeArray,
    });
  },
  /**
   * 選擇時間
   * @param {*} e 
   */
  changeDateTime(e) {
    let dateTimeArray = this.data.dateTimeArray,
      {
        type,
        param
      } = e.currentTarget.dataset;
    this.setData({
      [type]: e.detail.value,
      [param]: dateTimeArray[0][e.detail.value[0]] + '-' + dateTimeArray[1][e.detail.value[1]] + '-' + dateTimeArray[2][e.detail.value[2]] + ' ' + dateTimeArray[3][e.detail.value[3]] + ':' + dateTimeArray[4][e.detail.value[4]] + ':' + dateTimeArray[5][e.detail.value[5]]
    });
  },
  changeDateTimeColumn(e) {
    var dateArr = this.data.dateTimeArray,
      {
        type
      } = e.currentTarget.dataset,
      arr = this.data[type];
    arr[e.detail.column] = e.detail.value;
    dateArr[2] = dateTimePicker.getMonthDay(dateArr[0][arr[0]], dateArr[1][arr[1]]);
    this.setData({
      dateTimeArray: dateArr,
      [type]: arr
    });
  },


})

自定義range數(shù)組：

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 = '月份格式不正確，請重新輸入！'
  }
  return array;
}

function getNewDateArry() {
  // 當前時間的處理
  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) {
  // 返回默認顯示的數(shù)組和聯(lián)動數(shù)組的聲明
  var dateTime = [],
    dateTimeArray = [
      [],
      [],
      [],
      [],
      [],
      []
    ];
  var start = startYear || 1978;
  var end = endYear || 2100;
  // 默認開始顯示數(shù)據
  var defaultDate = date ? [...date.split(' ')[0].split('-'), ...date.split(' ')[1].split(':')] : getNewDateArry();
  // 處理聯(lián)動列表數(shù)據
  /*年月日 時分秒*/
  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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