-
representaciones
-
en el componente de fecha
- parte wxml
<view>
<view bindtap="handleShowDatePicker">{
{
year}}-{
{
month}}<text wx:if="{
{isShowDays}}">-{
{
day}}</text></view>
</view>
<view class="date-picker-container {
{isShow ? 'active' : 'display-none'}}">
<view class="date-picker-title">日期选择器</view>
<picker-view indicator-style="height: 50px;" style="width: 100%; height: 200px;text-align:center;" value="{
{currentValue}}" bindpickstart="bindpickstart" bindpickend="bindpickend" bindchange="bindChange">
<picker-view-column>
<view wx:for="{
{years}}" wx:key="*this" style="line-height: 50px">{
{
item}}年</view>
</picker-view-column>
<picker-view-column>
<view wx:for="{
{months}}" wx:key="*this" style="line-height: 50px">{
{
item}}月</view>
</picker-view-column>
<picker-view-column wx:if="{
{isShowDays}}">
<view wx:for="{
{days}}" wx:key="*this" style="line-height: 50px">{
{
item}}日</view>
</picker-view-column>
</picker-view>
<view class="date-picker-btn-box">
<view bindtap="cancel" class="date-picker-cancel-btn">取消</view>
<view bindtap="confirm" class="date-picker-confirm-btn">确定</view>
</view>
</view>
<view class='mask' wx:if="{
{isShow}}" bindtap='closeModal'></view>
- parte de wxss
.mask{
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: 99999;
background-color: rgba(0, 0, 0, .5);
}
.date-picker-container {
width: 100%;
position: absolute;
bottom: 0;
left: 0;
z-index: 100000;
padding: 40rpx 60rpx;
transition: ease .3s;
transform: translateY(100%);
background-color: #fff;
box-sizing: border-box;
border-radius: 30rpx 30rpx 0 0;
}
.display-none{
display: none;
}
.date-picker-container.active{
transform: translateY(0);
display: block;
}
.date-picker-title {
text-align: center;
}
.date-picker-btn-box {
display: flex;
font-weight: 600;
margin-top: 40rpx;
color: var(--themeColor);
justify-content: space-around;
}
.date-picker-btn-box .date-picker-cancel-btn,
.date-picker-btn-box .date-picker-confirm-btn {
text-align: center;
font-size: 32rpx;
padding: 0 96rpx;
height: 88rpx;
line-height: 88rpx;
border-radius: 12rpx;
color: var(--themeColor);
border: 2rpx solid var(--themeColor);
}
.date-picker-btn-box .date-picker-confirm-btn{
color: #fff;
background-color: var(--themeColor);
}
- js parte
const date = new Date(); // 获取系统日期
var getYear = date.getFullYear(),
getMonth = (date.getMonth() + 1) < 10 ? '0' + (date.getMonth() + 1) : (date.getMonth() + 1),
getDate = date.getDate() < 10 ? '0' + date.getDate() : date.getDate(),
isScroll = false;
Component({
properties: {
// 是否显示 日
isShowDays: {
type: Boolean,
value: true
},
/**
* 日期选择器默认值
* 1. 这里设置无效 (暂时不知道什么原因) --- 问题
* 2. 所以由父组件传值过来，（* 父组件中，在 onShow() 这个生命周期中就 setData()） --- 解决
*/
currentValue: {
type: Array,
value: [9999,0,0]
},
},
data: {
isShow: true,
year:getYear,
month: getMonth,
day: getDate,
years: [],
months: [],
days: []
},
lifetimes: {
attached: function () {
this.initDatePicker();
},
moved: function () {
},
detached: function () {
},
},
methods: {
/***
* 滚动选择时触发change事件，
* 可以查看小程序官方文档了解
*/
bindChange(e) {
const val = e.detail.value;
// console.log(val)
this.setData({
year: this.data.years[val[0]],
month: this.data.months[val[1]],
day: this.data.days[val[2]]
})
const {
year, month } = this.data
const days = this.getOneMonthCountDaysArr(year, month)
this.setData({
days })
},
// 获取某个月中有多少天数,并存到一个数组中
getOneMonthCountDaysArr(year,month) {
let dayLen = new Date(year, Number(month), 0).getDate(); // 获取当前月有多少天
let daysArr = []
for (let i = 1; i <= dayLen; i++) {
if (i < 10) {
i = '0' + i }
daysArr.push(i)
}
return daysArr
},
// 滚动开始
bindpickstart(){
isScroll = true
},
//滚动结束
bindpickend(){
isScroll = false
},
// 点击日期，显示日期选择器
handleShowDatePicker() {
this.setData({
isShow: true})
},
// 点击取消按钮，关闭日期选择器
cancel() {
this.setData({
isShow: false})
},
// 点击确定按钮
confirm() {
let {
year, month, day } = this.data
// 判断用户选择时间滚动是否结束，解决 picker-view bindChange 延迟问题
if (isScroll) return
this.triggerEvent('handleSelectDate', {
year, month ,day })
this.setData({
isShow: false})
},
// 点击遮罩层，关闭日期选择器
closeModal() {
this.setData({
isShow: false})
},
// 初始化 picker 日期数据
initDatePicker() {
const date = new Date(),
years = [],
months = [],
days = this.getOneMonthCountDaysArr(date.getFullYear(), (date.getMonth() + 1)) || []; // 获取当前月有多少天
// 存放年份的数组
for (let i = 2010; i <= date.getFullYear(); i++) {
years.push(i)
}
// 存放月份的数组
for (let i = 1; i <= 12; i++) {
if (i < 10) {
i = '0' + i }
months.push(i)
}
this.setData({
years, months, days })
},
},
});
- sección json (predeterminada)
{
"component": true,
"usingComponents": {
}
}
- utilizado en el componente principal
- en wxml
<my-date-picker bind:handleSelectDate="handleSelectDate" currentValue="{
{valueList}}"></my-date-picker>
- en js
Page({
/**
* 页面的初始数据
*/
data: {
valueList: [9999,0,0]
},
handleSelectDate(e){
console.log(e.detail);
},
/**
* 生命周期函数--监听页面加载
*/
onLoad: function (options) {
},
/**
* 生命周期函数--监听页面初次渲染完成
*/
onReady: function () {
},
/**
* 生命周期函数--监听页面显示
*/
onShow: function () {
const date = new Date()
this.setData({
valueList: [9999,date.getMonth(),date.getDate() -1]})
},
/**
* 生命周期函数--监听页面隐藏
*/
onHide: function () {
},
/**
* 生命周期函数--监听页面卸载
*/
onUnload: function () {
},
/**
* 页面相关事件处理函数--监听用户下拉动作
*/
onPullDownRefresh: function () {
},
/**
* 页面上拉触底事件的处理函数
*/
onReachBottom: function () {
},
/**
* 用户点击右上角分享
*/
onShareAppMessage: function () {
}
})
- en json
{
"usingComponents": {
"my-date-picker": "/component/my-date-picker/index"
},
"navigationBarTitleText": "日期选择器"
}