vant-weapp/example/pages/calendar/index.js

import Page from '../../common/page';

Page({
  data: {
    date: {
      maxRange: [],
      selectSingle: null,
      selectRange: [],
      selectMultiple: [],
      quickSelect1: null,
      quickSelect2: [],
      customColor: [],
      customConfirm: [],
      customRange: null,
      customDayText: [],
      customPosition: null
    },
    type: 'single',
    round: true,
    color: undefined,
    minDate: Date.now(),
    maxDate: new Date(
      new Date().getFullYear(),
      new Date().getMonth() + 6,
      new Date().getDate()
    ).getTime(),
    maxRange: undefined,
    position: undefined,
    formatter: undefined,
    showConfirm: false,
    showCalendar: false,
    tiledMinDate: new Date(2012, 0, 10).getTime(),
    tiledMaxDate: new Date(2012, 2, 20).getTime(),
    confirmText: undefined,
    confirmDisabledText: undefined
  },

  onConfirm(event) {
    console.log(event);
    this.setData({ showCalendar: false });

    this.setData({
      [`date.${this.data.id}`]: event.detail
    });
  },

  onSelect(event) {
    console.log(event);
  },

  onClose() {
    this.setData({ showCalendar: false });
  },

  onOpen() {
    console.log('open');
  },

  onOpened() {
    console.log('opened');
  },

  onClosed() {
    console.log('closed');
  },

  resetSettings() {
    this.setData({
      round: true,
      color: null,
      minDate: Date.now(),
      maxDate: new Date(
        new Date().getFullYear(),
        new Date().getMonth() + 6,
        new Date().getDate()
      ).getTime(),
      maxRange: null,
      position: 'bottom',
      formatter: null,
      showConfirm: true,
      confirmText: '确定',
      confirmDisabledText: null
    });
  },

  show(event) {
    this.resetSettings();
    const { type, id } = event.currentTarget.dataset;
    const data = {
      id,
      type,
      showCalendar: true
    };

    switch (id) {
      case 'quickSelect1':
      case 'quickSelect2':
        data.showConfirm = false;
        break;
      case 'customColor':
        data.color = '#07c160';
        break;
      case 'customConfirm':
        data.confirmText = '完成';
        data.confirmDisabledText = '请选择结束时间';
        break;
      case 'customRange':
        data.minDate = new Date(2010, 0, 1).getTime();
        data.maxDate = new Date(2010, 0, 31).getTime();
        break;
      case 'customDayText':
        data.minDate = new Date(2010, 4, 1).getTime();
        data.maxDate = new Date(2010, 4, 31).getTime();
        data.formatter = this.dayFormatter;
        break;
      case 'customPosition':
        data.round = false;
        data.position = 'right';
        break;
      case 'maxRange':
        data.maxRange = 3;
        break;
    }

    this.setData(data);
  },

  dayFormatter(day) {
    const month = day.date.getMonth() + 1;
    const date = day.date.getDate();

    if (month === 5) {
      if (date === 1) {
        day.topInfo = '劳动节';
      } else if (date === 4) {
        day.topInfo = '五四青年节';
      } else if (date === 11) {
        day.text = '今天';
      }
    }

    if (day.type === 'start') {
      day.bottomInfo = '入店';
    } else if (day.type === 'end') {
      day.bottomInfo = '离店';
    }

    return day;
  }
});