微信小程序日历日期选择插件使用方法详解

微信⼩程序⽇历⽇期选择插件使⽤⽅法详解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。