這篇文章主要為大家詳細(xì)介紹了微信小程序日期時(shí)間選擇器的使用方法,自定義精確到分秒或時(shí)段,具有一定的參考價(jià)值,感興趣的小伙伴們可以參考一下
本文實(shí)例為大家分享了精確到秒的微信小程序日期時(shí)間選擇器,供大家參考,具體內(nèi)容如下
效果圖
實(shí)現(xiàn)原理
利用微信小程序的picker組件的多列選擇器實(shí)現(xiàn)!
WXML
<view class="tui-picker-content"> <view class="tui-picker-name">時(shí)間選擇器(選擇時(shí)分)</view> <picker mode="time" value="{{time}}" start="09:00" end="17:30" bindchange="changeTime"> <view class="tui-picker-detail"> 午飯時(shí)間: {{time}} </view> </picker> </view> <view class="tui-picker-content"> <view class="tui-picker-name">日期選擇器(選擇年月日)</view> <picker mode="date" value="{{date}}" start="2017-10-01" end="2017-10-08" bindchange="changeDate"> <view class="tui-picker-detail"> 國(guó)慶出游: {{date}} </view> </picker> </view> <view class="tui-picker-content"> <view class="tui-picker-name">日期時(shí)間選擇器(精確到秒)</view> <picker mode="multiSelector" value="{{dateTime}}" bindchange="changeDateTime" bindcolumnchange="changeDateTimeColumn" range="{{dateTimeArray}}"> <view class="tui-picker-detail"> 選擇日期時(shí)間: {{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">日期時(shí)間選擇器(精確到分)</view> <picker mode="multiSelector" value="{{dateTime1}}" bindchange="changeDateTime1" bindcolumnchange="changeDateTimeColumn1" range="{{dateTimeArray1}}"> <view class="tui-picker-detail"> 選擇日期時(shí)間: {{dateTimeArray1[0][dateTime1[0]]}}-{{dateTimeArray1[1][dateTime1[1]]}}-{{dateTimeArray1[2][dateTime1[2]]}} {{dateTimeArray1[3][dateTime1[3]]}}:{{dateTimeArray1[4][dateTime1[4]]}} </view> </picker> </view>
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WXSS
@import "../picker/picker.wxss";
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使用的是三級(jí)聯(lián)動(dòng)選擇器的樣式,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(){ // 獲取完整的年月日 時(shí)分秒,以及默認(rèn)顯示的數(shù)組 var obj = dateTimePicker.dateTimePicker(this.data.startYear, this.data.endYear); var obj1 = dateTimePicker.dateTimePicker(this.data.startYear, this.data.endYear); // 精確到分的處理,將數(shù)組的秒去掉 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 }); } })
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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 = '月份格式不正確,請(qǐng)重新輸入!' } return array; } function getNewDateArry(){ // 當(dāng)前時(shí)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(rèn)顯示的數(shù)組和聯(lián)動(dòng)數(shù)組的聲明 var dateTime = [], dateTimeArray = [[],[],[],[],[],[]]; var start = startYear || 1978; var end = endYear || 2100; // 默認(rèn)開(kāi)始顯示數(shù)據(jù) var defaultDate = date ? [...date.split(' ')[0].split('-'), ...date.split(' ')[1].split(':')] : getNewDateArry(); // 處理聯(lián)動(dòng)列表數(shù)據(jù) /*年月日 時(shí)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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總結(jié)
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將初始化列表以及初始化默認(rèn)顯示的數(shù)組放到dateTimePicker.js,防止頁(yè)面邏輯太亂,而且可以多處使用;
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判斷是否為閏年,在三木表達(dá)式中,必須將能別400整除放在前邊,因?yàn)榛蜻\(yùn)算只要一個(gè)條件滿足,就會(huì)返回true,不會(huì)執(zhí)行后續(xù)表達(dá)式;
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switch case的合并方法需要注意格式;
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如果只需要聯(lián)動(dòng)列表更新,二結(jié)果展示欄不更新,則在changeDateTimeColumn函數(shù)中只更新dateTimeArray的值。
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