微信小程序实用组件：日历小程序（真机可用）
小程序很火，但是现有的很多web插件都是操作DOM的，导致不能直接使用，最近需要弄个小程序日历，故而分享出来，大家相互交流。
可以左右切换，GIF工具掉咯，就传个静态图吧，大家自己下载体验:time:
js文件
const conf = {
data: {
// hasEmptyGrid 变量控制是否渲染空格子，若当月第一天是星期天，就不应该渲染空格子
hasEmptyGrid: false
},
// 控制scroll-view高度
getSystemInfo() {
try {
const res = wx.getSystemInfoSync();
this.setData({
scrollViewHeight: res.windowHeight * res.pixelRatio || 667
});
} catch (e) {
console.log(e);
}
},
// 获取当月共多少天
getThisMonthDays(year, month) {
return new Date(year, month, 0).getDate();
},
// 获取当月第一天星期几
getFirstDayOfWeek(year, month) {
return new Date(Date.UTC(year, month - 1, 1)).getDay();
},
// 计算当月1号前空了几个格子
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: []
});
}
},
// 绘制当月天数占的格子
calculateDays(year, month) {
let days = [];
const thisMonthDays = this.getThisMonthDays(year, month);
for (let i = 1; i <= thisMonthDays; i++) {
days.push(i);
}
this.setData({
days
});
},
// 初始化数据
onLoad(options) {
const date = new Date();
const cur_year = date.getFullYear();
const cur_month = date.getMonth() + 1;
const weeks_ch = ['日', '一', '二', '三', '四', '五', '六'];
this.calculateEmptyGrids(cur_year, cur_month);
this.calculateDays(cur_year, cur_month);
this.getSystemInfo();
this.setData({
cur_year,
cur_month,
weeks_ch
})
},
// 切换控制年月
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
})
}
},
onShareAppMessage() {
return {
title: '小程序日历',
desc: '还是新鲜的日历哟',
path: 'pages/index/index'
}
}
};
Page(conf);
wxml文件
<scroll-view scroll-y="true" class="flex box box-tb box-pack-center box-align-center" style="height: {{scrollViewHeight*2}}rpx">
<view class="calendar pink-color box box-tb">
<view class="top-handle fs28 box box-lr box-align-center box-pack-center">
<view class="prev box box-rl" bindtap="handleCalendar" data-handle="prev">
<view class="prev-handle box box-lr box-align-center box-pack-center">《</view>
</view>
<view class="date-area box box-lr box-align-center box-pack-center">{{cur_year || "--"}} 年 {{cur_month || "--"}} 月</view>
<view class="next box box-lr" bindtap="handleCalendar" data-handle="next">
<view class="next-handle box box-lr box-align-center box-pack-center">》</view>
</view>
</view>
<view class="weeks box box-lr box-pack-center box-align-center">
<view class="flex week fs28" wx:for="{{weeks_ch}}" wx:key="{{index}}" data-idx="{{index}}">{{item}}</view>
</view>
<view class="days box box-lr box-wrap">
<view wx:if="{{hasEmptyGrid}}" class="grid white-color box box-align-center box-pack-center" wx:for="{{empytGrids}}" wx:key="{{index}}" data-idx="{{index}}">
</view>
<view class="grid white-color box box-align-center box-pack-center" wx:for="{{days}}" wx:key="{{index}}" data-idx="{{index}}">
<view class="day {{index >= 5 && index <= 13 ? 'border-radius pink-bg' : ''}} box box-align-center box-pack-center">{{item}}</view>
</view>
</view>
</view>
</scroll-view>
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