微信小程序日期时间选择器使用方法

本文实例为大家分享了精确到秒的微信小程序日期时间选择器,供大家参考,具体内容如下

效果图

实现原理

利用微信小程序的picker组件的多列选择器实现!

WXML

<view class="tui-picker-content">

<view class="tui-picker-name">时间选择器(选择时分)</view>

<picker mode="time" value="{{time}}" start="09:00" end="17:30" bindchange="changeTime">

<view class="tui-picker-detail">

午饭时间: {{time}}

</view>

</picker>

</view>

<view class="tui-picker-content">

<view class="tui-picker-name">日期选择器(选择年月日)</view>

<picker mode="date" value="{{date}}" start="2017-10-01" end="2017-10-08" bindchange="changeDate">

<view class="tui-picker-detail">

国庆出游: {{date}}

</view>

</picker>

</view>

<view class="tui-picker-content">

<view class="tui-picker-name">日期时间选择器(精确到秒)</view>

<picker mode="multiSelector" value="{{dateTime}}" bindchange="changeDateTime" bindcolumnchange="changeDateTimeColumn" range="{{dateTimeArray}}">

<view class="tui-picker-detail">

选择日期时间: {{dateTimeArray[0][dateTime[0]]}}-{{dateTimeArray[1][dateTime[1]]}}-{{dateTimeArray[2][dateTime[2]]}} {{dateTimeArray[3][dateTime[3]]}}:{{dateTimeArray[4][dateTime[4]]}}:{{dateTimeArray[5][dateTime[5]]}}

</view>

</picker>

</view>

<view class="tui-picker-content">

<view class="tui-picker-name">日期时间选择器(精确到分)</view>

<picker mode="multiSelector" value="{{dateTime1}}" bindchange="changeDateTime1" bindcolumnchange="changeDateTimeColumn1" range="{{dateTimeArray1}}">

<view class="tui-picker-detail">

选择日期时间: {{dateTimeArray1[0][dateTime1[0]]}}-{{dateTimeArray1[1][dateTime1[1]]}}-{{dateTimeArray1[2][dateTime1[2]]}} {{dateTimeArray1[3][dateTime1[3]]}}:{{dateTimeArray1[4][dateTime1[4]]}}

</view>

</picker>

</view>

WXSS

@import "../picker/picker.wxss";

使用的是三级联动选择器的样式,所以直接 import 引入!

JS

var dateTimePicker = require('../../utils/dateTimePicker.js');

Page({

data: {

date: '2018-10-01',

time: '12:00',

dateTimeArray: null,

dateTime: null,

dateTimeArray1: null,

dateTime1: null,

startYear: 2000,

endYear: 2050

},

onLoad(){

// 获取完整的年月日 时分秒,以及默认显示的数组

var obj = dateTimePicker.dateTimePicker(this.data.startYear, this.data.endYear);

var obj1 = dateTimePicker.dateTimePicker(this.data.startYear, this.data.endYear);

// 精确到分的处理,将数组的秒去掉

var lastArray = obj1.dateTimeArray.pop();

var lastTime = obj1.dateTime.pop();

this.setData({

dateTime: obj.dateTime,

dateTimeArray: obj.dateTimeArray,

dateTimeArray1: obj1.dateTimeArray,

dateTime1: obj1.dateTime

});

},

changeDate(e){

this.setData({ date:e.detail.value});

},

changeTime(e){

this.setData({ time: e.detail.value });

},

changeDateTime(e){

this.setData({ dateTime: e.detail.value });

},

changeDateTime1(e) {

this.setData({ dateTime1: e.detail.value });

},

changeDateTimeColumn(e){

var arr = this.data.dateTime, dateArr = this.data.dateTimeArray;

arr[e.detail.column] = e.detail.value;

dateArr[2] = dateTimePicker.getMonthDay(dateArr[0][arr[0]], dateArr[1][arr[1]]);

this.setData({

dateTimeArray: dateArr,

dateTime: arr

});

},

changeDateTimeColumn1(e) {

var arr = this.data.dateTime1, dateArr = this.data.dateTimeArray1;

arr[e.detail.column] = e.detail.value;

dateArr[2] = dateTimePicker.getMonthDay(dateArr[0][arr[0]], dateArr[1][arr[1]]);

this.setData({

dateTimeArray1: dateArr,

dateTime1: arr

});

}

})

外部JS,dateTimePicker.js的引入

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 || 1978;

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

}

总结

  • 将初始化列表以及初始化默认显示的数组放到dateTimePicker.js,防止页面逻辑太乱,而且可以多处使用;
  • 判断是否为闰年,在三木表达式中,必须将能别400整除放在前边,因为或运算只要一个条件满足,就会返回true,不会执行后续表达式;
  • switch case的合并方法需要注意格式;
  • 如果只需要联动列表更新,二结果展示栏不更新,则在changeDateTimeColumn函数中只更新dateTimeArray的值。

DEMO下载

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