微信小程序日历/日期选择插件使用方法详解

编程学习 2021-07-04 15:50www.dzhlxh.cn编程入门
这篇文章主要为大家详细介绍了微信小程序日历和日期选择插件的使用方法,具有一定的参考价值,感兴趣的小伙伴们可以参考一下

微信小程序日历选择器插件点击日历日期可以获取到年月日,具体内容如下

wxml

<view class="canlendarBgView">
 <view class="canlendarView">
  <view class="canlendarTopView">
   <view class="leftBgView" bindtap="handleCalendar" data-handle="prev">
    <view class="leftView">《</view>
   </view>
   <view class="centerView">{{cur_year || "--"}} 年 {{cur_month || "--"}} 月</view>
   <view class="rightBgView" bindtap="handleCalendar" data-handle="next">
    <view class="rightView">》</view>
   </view>
  </view>
  <view class="weekBgView">
   <view class="weekView" wx:for="{{weeks_ch}}" wx:key="{{index}}" data-idx="{{index}}">{{item}}</view>
  </view>
  <view class="dateBgView">
   <view wx:if="{{hasEmptyGrid}}" class="dateEmptyView" wx:for="{{empytGrids}}" wx:key="{{index}}" data-idx="{{index}}">
   </view>
   <view class="dateView" wx:for="{{days}}" wx:key="{{index}}" data-idx="{{index}}" bindtap="dateSelectAction">
    <view class="datesView {{index == todayIndex ? 'dateSelectView' : ''}}">{{item}}</view>
   </view>
  </view>
 </view>
 <view>点击日期选择</view>
</view>

js

//index.js
//获取应用实例
Page({
 data: {
  hasEmptyGrid: false,
  cur_year: '',
  cur_month: '',
 },
 onLoad(options) {
  this.setNowDate();
 },
 
 dateSelectAction: function (e) {
  var cur_day = e.currentTarget.dataset.idx;
  this.setData({
   todayIndex: cur_day
  })
  console.log(`点击的日期:${this.data.cur_year}年${this.data.cur_month}月${cur_day + 1}日`);
 },
 
 setNowDate: function () {
  const date = new Date();
  const cur_year = date.getFullYear();
  const cur_month = date.getMonth() + 1;
  const todayIndex = date.getDate() - 1;
  console.log(`日期:${todayIndex}`)
  const weeks_ch = ['日', '一', '二', '三', '四', '五', '六'];
  this.calculateEmptyGrids(cur_year, cur_month);
  this.calculateDays(cur_year, cur_month);
  this.setData({
   cur_year: cur_year,
   cur_month: cur_month,
   weeks_ch,
   todayIndex,
  })
 },
 
 getThisMonthDays(year, month) {
  return new Date(year, month, 0).getDate();
 },
 getFirstDayOfWeek(year, month) {
  return new Date(Date.UTC(year, month - 1, 1)).getDay();
 },
 calculateEmptyGrids(year, month) {
  const firstDayOfWeek = this.getFirstDayOfWeek(year, month);
  let empytGrids = [];
  if (firstDayOfWeek > 0) {
   for (let i = 0; i < firstDayOfWeek; i++) {
    empytGrids.push(i);
   }
   this.setData({
    hasEmptyGrid: true,
    empytGrids
   });
  } else {
   this.setData({
    hasEmptyGrid: false,
    empytGrids: []
   });
  }
 },
 calculateDays(year, month) {
  let days = [];
 
  const thisMonthDays = this.getThisMonthDays(year, month);
 
  for (let i = 1; i <= thisMonthDays; i++) {
   days.push(i);
  }
 
  this.setData({
   days
  });
 },
 handleCalendar(e) {
  const handle = e.currentTarget.dataset.handle;
  const cur_year = this.data.cur_year;
  const cur_month = this.data.cur_month;
  if (handle === 'prev') {
   let newMonth = cur_month - 1;
   let newYear = cur_year;
   if (newMonth < 1) {
    newYear = cur_year - 1;
    newMonth = 12;
   }
 
   this.calculateDays(newYear, newMonth);
   this.calculateEmptyGrids(newYear, newMonth);
 
   this.setData({
    cur_year: newYear,
    cur_month: newMonth
   })
 
  } else {
   let newMonth = cur_month + 1;
   let newYear = cur_year;
   if (newMonth > 12) {
    newYear = cur_year + 1;
    newMonth = 1;
   }
 
   this.calculateDays(newYear, newMonth);
   this.calculateEmptyGrids(newYear, newMonth);
 
   this.setData({
    cur_year: newYear,
    cur_month: newMonth
   })
  }
 }
})

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持狼蚁SEO。

Copyright © 2016-2025 www.dzhlxh.cn 金源码 版权所有 Power by

网站模板下载|网络推广|微博营销|seo优化|视频营销|网络营销|微信营销|网站建设|织梦模板|小程序模板