ball-applet/commpents/datetime-picker/index.js

// commpents/datetime-picker/index.js
const app = getApp()
const moment = require("../../utils/moment.min");
Component({
    /**
     * 组件的属性列表
     */
    options: { multipleSlots: true },
    properties: {
        datetime: { type: String, value: '' },
        fieldValue: { type: String, value: '' }
    },
    // 生命周期函数，可以为函数，或一个在methods段中定义的方法名
    attached: function () { }, // 此处attached的声明会被lifetimes字段中的声明覆盖
    ready: function () { },
    pageLifetimes: {
        // 组件所在页面的生命周期函数
        show: function () { },
        hide: function () { },
        resize: function () { },
    },
    /**
     * 组件的初始数据
     */
    data: {
        dateTimeArray: [
            ['2001', '2002', '2003', '2004', '2005', '2006', '2007', '2008', '2009', '2010'],
            ['01', '02', '03', '04', '05', '06', '07', '08', '09', '10', '11', '12'],
            ['01', '02', '03', '04', '05', '06', '07', '08', '09', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31'],
            ['00', '01', '02', '03', '04', '05', '06', '07', '08', '09', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23'],
            ['00', '01', '02', '03', '04', '05', '06', '07', '08', '09', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31', '32', '33', '34', '35', '36', '37', '38', '39', '40', '41', '42', '43', '44', '45', '46', '47', '48', '49', '50', '51', '52', '53', '54', '55', '56', '57', '58', '59'],
            ['00', '01', '02', '03', '04', '05', '06', '07', '08', '09', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31', '32', '33', '34', '35', '36', '37', '38', '39', '40', '41', '42', '43', '44', '45', '46', '47', '48', '49', '50', '51', '52', '53', '54', '55', '56', '57', '58', '59'],
        ],
        // 计算日期
        year: '',
        moneh: '',
    },
    /**
     * 组件的方法列表
     */
    methods: {
        // 确认选择
        change: function (e) {
            const that = this;
            let dateTimeArray = that.data.dateTimeArray;
            let value = e.detail.value;
            let datetime = dateTimeArray[0][value[0]] + '-' + dateTimeArray[1][value[1]] + '-' + dateTimeArray[2][value[2]] + ' ' + dateTimeArray[3][value[3]] + ':' + dateTimeArray[4][value[4]] + ':' + dateTimeArray[5][value[5]];
            that.triggerEvent('datetimeChange', { datetime: datetime, fieldValue: that.properties.fieldValue })
        },
        // 选择月份
        columnChange: function (e) {
            const that = this;
            const { column, value } = e.detail;
            let dateTimeArray = that.data.dateTimeArray;
            let year = '';
            let month = '';
            year = that.data.year || dateTimeArray[0][0];
            month = that.data.month || dateTimeArray[1][0];
            if (column == '0') year = dateTimeArray[0][value];
            if (column == '1') month = dateTimeArray[1][value];
            that.setData({ year: year, month: month });
            // 计算当前选择年月所要显示的日期
            let ym = that.data.year + '-' + that.data.month;
            let test = ['01', '02', '03', '04', '05', '06', '07', '08', '09', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31'];
            let monthDay = moment(ym).daysInMonth();
            let thr = test.splice(0, monthDay);
            that.setData({ 'dateTimeArray[2]': thr })
        },
    }
})