在微信开放文档的picker组件中,只有单独的日期控件或者时间控件,而很多时候我们需要这两者的结合组件,就需要我们进行手动封装了。
使用步骤:
一、在js文件中封装组件并导出
function withData(param) {
return param < 10 ? '0' + param : '' + param;
}
function getLoopArray(start, end) {
var start = start || 0;
var end = end || 1;
var array = [];
for (var i = start; i <= end; i++) {
array.push(withData(i));
}
return array;
}
function getMonthDay(year, month) {
var flag = year % 400 == 0 || (year % 4 == 0 && year % 100 != 0),
array = null;
switch (month) {
case '01':
case '03':
case '05':
case '07':
case '08':
case '10':
case '12':
array = getLoopArray(1, 31)
break;
case '04':
case '06':
case '09':
case '11':
array = getLoopArray(1, 30)
break;
case '02':
array = flag ? getLoopArray(1, 29) : getLoopArray(1, 28)
break;
default:
array = '月份格式不正确,请重新输入!'
}
return array;
}
function getNewDateArry() {
// 当前时间的处理
var newDate = new Date();
var year = withData(newDate.getFullYear()),
mont = withData(newDate.getMonth() + 1),
date = withData(newDate.getDate()),
hour = withData(newDate.getHours()),
minu = withData(newDate.getMinutes()),
seco = withData(newDate.getSeconds());
return [year, mont, date, hour, minu, seco];
}
function dateTimePicker(startYear, endYear, date) {
// 返回默认显示的数组和联动数组的声明
var dateTime = [],
dateTimeArray = [
[],
[],
[],
[],
[],
[]
];
var start = startYear || 1978;
var end = endYear || 2100;
// 默认开始显示数据
var defaultDate = date ? [...date.split(' ')[0].split('-'), ...date.split(' ')[1].split(':')] : getNewDateArry();
// 处理联动列表数据
/*年月日 时分秒*/
dateTimeArray[0] = getLoopArray(start, end);
dateTimeArray[1] = getLoopArray(1, 12);
dateTimeArray[2] = getMonthDay(defaultDate[0], defaultDate[1]);
dateTimeArray[3] = getLoopArray(0, 23);
dateTimeArray[4] = getLoopArray(0, 59);
dateTimeArray[5] = getLoopArray(0, 59);
dateTimeArray.forEach((current, index) => {
dateTime.push(current.indexOf(defaultDate[index]));
});
return {
dateTimeArray: dateTimeArray,
dateTime: dateTime
}
}
module.exports = {
dateTimePicker: dateTimePicker,
getMonthDay: getMonthDay
}
在需要用到的页面的js文件中进行引入
var dateTimePicker = require('../../../utils/dateTimePicker');
在data对象中定义字段
data: {
dateTimeArray: null,
dateTime: null,
startYear: 2000,
endYear: 2050,
selectTime:'' // 最终要展示的时间
},
在onLoad方法中初始化数据
onLoad() {
// 获取完整的年月日 时分秒,以及默认显示的数组
let obj = dateTimePicker.dateTimePicker(this.data.startYear, this.data.endYear);
this.setData({
dateTime: obj.dateTime,
dateTimeArray: obj.dateTimeArray
});
},
wxml文件中使用picker组件绑定值跟事件
<view>
<picker mode="multiSelector" model:value="{{dateTime}}" bindcolumnchange="changeStartDateTimeColumn" range="{{dateTimeArray}}" bindtap="changeStartDateTimeColumn" bindcancel="cancelSelect">
<view style="position:relative">
{{visitStartTime}}
</view>
</picker>
</view>
js文件中触发时间选择事件
// 开始时间选择
changeStartDateTimeColumn(e) {
let dateArr = []
let arr = this.data.dateTime
dateArr = this.data.dateTimeArray
arr[e.detail.column] = e.detail.value
dateArr[2] = dateTimePicker.getMonthDay(dateArr[0][arr[0]], dateArr[1][arr[1]]);
this.setData({
dateTimeArray: dateArr,
dateTime: arr
});
let selectTime= `${this.data.dateTimeArray[0][this.data.dateTime[0]]}-${this.data.dateTimeArray[1][this.data.dateTime[1]]}-${this.data.dateTimeArray[2][this.data.dateTime[2]]} ${this.data.dateTimeArray[3][this.data.dateTime[3]]}:${this.data.dateTimeArray[4][this.data.dateTime[4]]}:${this.data.dateTimeArray[5][this.data.dateTime[5]]}`
this.setData({
selectTime,
})
},
效果如下图: