微信小程序时间控件picker view使用详解

<view class="time_screens"> <view style="text-align:center;color:#45BCE8">{{year}}-{{month}}-{{day}} {{hour}}:{{minute}}<label style="float:right;margin-right:10px;">确定</label></view> <view style="border-top:1px solid #45BCE8;height:25px;font-size:14px;"> <view class="time-title">年</view> <view class="time-title">月</view> <view class="time-title">日</view> <view class="time-title">时</view> <view class="time-title">分</view> </view> <picker-view indicator-style="height: 50px;" style="width: 100%; height: 300px;" value="{{value}}" bindchange="bindChange">  <picker-view-column class="picker-text">   <view wx:for="{{years}}" style="line-height: 50px">{{item}}</view>  </picker-view-column>  <picker-view-column class="picker-text">   <view wx:for="{{months}}" style="line-height: 50px">{{item}}</view>  </picker-view-column>  <picker-view-column class="picker-text">   <view wx:for="{{days}}" style="line-height: 50px">{{item}}</view>  </picker-view-column>   <picker-view-column class="picker-text">   <view wx:for="{{hours}}" style="line-height: 50px">{{item}}</view>  </picker-view-column>   <picker-view-column class="picker-text">   <view wx:for="{{minutes}}" style="line-height: 50px">{{item}}</view>  </picker-view-column> </picker-view></view>

.time-title{ float:left;width:20%;text-align:center;color:#45BCE8}.picker-text{ text-align:center;}/*mask*/.time_screens {  width: 100%;  position: fixed;bottom: 0; left: 0; z-index: 1000; opacity: 0.5; overflow: hidden;}

const date = new Date()const years = []const months = []const days = []const hours = []const minutes = []var thisMon = date.getMonth();var thisDay = date.getDate(); for (let i = 2017; i <= date.getFullYear()+1; i++) { years.push(i)} for (let i = date.getMonth(); i <= 11; i++) { var k = i; if (0 <= i && i < 9) {  k = "0" + (i+1); }else{  k = (i + 1); } months.push(k)}if (0 <= thisMon && thisMon<9){ thisMon = "0" + (thisMon + 1);}else{ thisMon = (thisMon + 1);}if (0 <= thisDay && thisDay<10){ thisDay ="0"+thisDay;} var totalDay = mGetDate(date.getFullYear(), thisMon); for (let i = 1; i <= 31; i++) { var k = i; if (0 <= i && i < 10) {  k = "0" + i } days.push(k)} for (let i = 0; i <= 23; i++) { var k=i; if(0<=i&&i<10){  k="0"+i } hours.push(k)}for (let i = 0; i <= 59; i++) { var k = i; if (0 <= i && i < 10) {  k = "0" + i } minutes.push(k)}function mGetDate(year, month) { var d = new Date(year, month, 0); return d.getDate();}Page({ data: {  years: years,  year: date.getFullYear(),  months: months,  month: thisMon,  days: days,  day: thisDay,  value: [1,thisMon-1,thisDay-1,0,0],  hours: hours,  hour: "00",  minutes: minutes,  minute: "00", }, bindChange: function (e) {  const val = e.detail.value  this.setData({   year: this.data.years[val[0]],   month: this.data.months[val[1]],   day: this.data.days[val[2]],   hour: this.data.hours[val[3]],   minute: this.data.minutes[val[4]],  })  var totalDay = mGetDate(this.data.year, this.data.month);   var changeDate=[];  for (let i = 1; i <= totalDay; i++) {   var k = i;   if (0 <= i && i < 10) {    k = "0" + i   }   changeDate.push(k)  }  this.setData({   days: changeDate  }) }, })