小程序中vant的DatetimePicker会自己滑动，跳来跳去。原生日期，时间选择器

网上找了一下，很多人遇到这个问题，一般都是用 将bind:input 换成 bind:change 事件 解决的

<van-datetime-picker type="datetime" value="{{ currentDate }}" bind:change="onchange" bind:confirm="confirm_plan" bind:cancel="cancel_plan" />

  //选择时间
  onchange(event: any) {
    let temp = event.detail.getValues();
    let time = `${temp[0]}-${temp[1]}-${temp[2]} ${temp[3]}:${temp[4]}`;
    this.setData({
      currentDate: moment(time).valueOf(),
    });
  },

但是这样修改之后会出现延迟，这次确认的值还是上次选择的结果。

所以后面根据原生小程序自己写了一个日期时间选择的功能

下面是基础js

  1 function withData(param) {
  2   return param < 10 ? '0' + param : '' + param;
  3 }
  4 function getLoopArray(start, end) {
  5   var start = start || 0;
  6   var end = end || 1;
  7   var array = [];
  8   for (var i = start; i <= end; i++) {
  9     array.push(withData(i));
 10   }
 11   return array;
 12 }
 13 function getMonthDay(year, month) {
 14   var flag = year % 400 == 0 || (year % 4 == 0 && year % 100 != 0), array = null;
 15 
 16   switch (month) {
 17     case '01':
 18     case '03':
 19     case '05':
 20     case '07':
 21     case '08':
 22     case '10':
 23     case '12':
 24       array = getLoopArray(1, 31)
 25       break;
 26     case '04':
 27     case '06':
 28     case '09':
 29     case '11':
 30       array = getLoopArray(1, 30)
 31       break;
 32     case '02':
 33       array = flag ? getLoopArray(1, 29) : getLoopArray(1, 28)
 34       break;
 35     default:
 36       array = '月份格式不正确，请重新输入！'
 37   }
 38   return array;
 39 }
 40 function getNewDateArry() {
 41   // 当前时间的处理
 42   var newDate = new Date();
 43   var year = withData(newDate.getFullYear()),
 44     mont = withData(newDate.getMonth() + 1),
 45     date = withData(newDate.getDate()),
 46     hour = withData(newDate.getHours()),
 47     minu = withData(newDate.getMinutes()),
 48     seco = withData(newDate.getSeconds());
 49 
 50   return [year, mont, date, hour, minu, seco];
 51 }
 52 function dateTimePicker(startYear, endYear, date) {
 53   // 返回默认显示的数组和联动数组的声明
 54   var dateTime = [], dateTimeArray = [[], [], [], [], [], []];
 55   var start = startYear || 1978;
 56   var end = endYear || 2100;
 57   // 默认开始显示数据
 58   var defaultDate = date ? [...date.split(' ')[0].split('-'), ...date.split(' ')[1].split(':')] : getNewDateArry();
 59   // 处理联动列表数据
 60   /*年月日 时分秒*/
 61   dateTimeArray[0] = getLoopArray(start, end);
 62   dateTimeArray[1] = getLoopArray(1, 12);
 63   dateTimeArray[2] = getMonthDay(defaultDate[0], defaultDate[1]);
 64   dateTimeArray[3] = getLoopArray(0, 23);
 65   dateTimeArray[4] = getLoopArray(0, 59);
 66   dateTimeArray[5] = getLoopArray(0, 59);
 67 
 68   dateTimeArray.forEach((current, index) => {
 69     dateTime.push(current.indexOf(defaultDate[index]));
 70   });
 71 
 72   return {
 73     dateTimeArray: dateTimeArray,
 74     dateTime: dateTime
 75   }
 76 }
 77 //根据类型返回
 78 function dateTimePickertype(type, startYear, endYear, date) {
 79   // 返回默认显示的数组和联动数组的声明
 80   var dateTime = [];
 81   var dateTimeArray = [];
 82   var start = startYear || 1978;
 83   var end = endYear || 2100;
 84   // 默认开始显示数据
 85   var defaultDate = date ? [...date.split(' ')[0].split('-'), ...date.split(' ')[1].split(':')] : getNewDateArry();
 86   // 处理联动列表数据
 87   /*年月日 时分秒*/
 88   switch (type) {
 89     case "year":
 90       dateTimeArray[0] = getLoopArray(start, end);
 91       break;
 92     case "month":
 93       dateTimeArray[0] = getLoopArray(start, end);
 94       dateTimeArray[1] = getLoopArray(1, 12);
 95       break;
 96     case "day":
 97       dateTimeArray[0] = getLoopArray(start, end);
 98       dateTimeArray[1] = getLoopArray(1, 12);
 99       dateTimeArray[2] = getMonthDay(defaultDate[0], defaultDate[1]);
100       break;
101     case "minute":
102       dateTimeArray[0] = getLoopArray(start, end);
103       dateTimeArray[1] = getLoopArray(1, 12);
104       dateTimeArray[2] = getMonthDay(defaultDate[0], defaultDate[1]);
105       dateTimeArray[3] = getLoopArray(0, 23);
106       dateTimeArray[4] = getLoopArray(0, 59);
107       break;
108     case "second":
109       dateTimeArray[0] = getLoopArray(start, end);
110       dateTimeArray[1] = getLoopArray(1, 12);
111       dateTimeArray[2] = getMonthDay(defaultDate[0], defaultDate[1]);
112       dateTimeArray[3] = getLoopArray(0, 23);
113       dateTimeArray[4] = getLoopArray(0, 59);
114       dateTimeArray[5] = getLoopArray(0, 59);
115       break;
116     default:
117       break;
118   }
119 
120   dateTimeArray.forEach((current, index) => {
121     dateTime.push(current.indexOf(defaultDate[index]));
122   });
123 
124   return {
125     dateTimeArray: dateTimeArray,
126     dateTime: dateTime
127   }
128 
129 }
130 module.exports = {
131   dateTimePicker: dateTimePicker,
132   getMonthDay: getMonthDay,
133   dateTimePickertype,
134 }
View Code

使用时用原生的picker，同时支持年，月，日，分，秒选择器

<picker mode="multiSelector" value="{{dateTime1}}" bindchange="changeDate" range="{{dateArray}}">
          <view class="picker">
            时间
          </view>
        </picker>


  /**
   * 生命周期函数--监听页面加载
   */
  onLoad() {
    let date = dateTimePicker.dateTimePickertype('minute');
    this.setData({
      dateArray: date.dateTimeArray,
      dateTime1: date.dateTime
    })
  },

  changeDate(e: any) {
    let time = e.detail.value;
    let strtime = `${this.data.dateArray[0][time[0]]}-${this.data.dateArray[1][time[1]]}-${this.data.dateArray[2][time[2]]} ${this.data.dateArray[3][time[3]]}:${this.data.dateArray[4][time[4]]}`;
    this.setData({
      dateTime1: e.detail.value,
    });
  },

 

posted @ 2022-11-23 16:09  何以平天下  阅读(1722)  评论(0)  编辑  收藏  举报