作者:新梅乀_Esther | 来源:互联网 | 2023-07-08 10:16
原标题:微信小程序 实现单个/多个倒计时功能显示
思路:首先获取到每个倒计时的结束时间,然后把结束时间跟当前时间转换成时间戳,结束时间减去当前时间再除以1000(因为时间戳是毫秒级)就是该结束时间距离当前时间的秒数了,然后根据公式计算出时分秒,最后使用定时器每秒跑一次就实现成功啦~
两种倒计时思路差不多,多个倒计时多了遍历数组步骤,遍历拿到数组中每个对象结束时间来计算时间
好啦!说完思路先上效果图看看~~~
单个倒计时
上代码,上代码!!!重点来啦…
wxml:
<view class="countdown">
<view class="item">
倒计时:
<view class="txt-time">{{txtTime.hou}}</view>:
<view class="txt-time">{{txtTi文章来源地址34123.htmlme.min}}</view>:
<view class="txt-time">{{txtTime.sec}}</view>
</view>
</view>
css:
.countdown .item {
display: flex;
justify-content: center;
align-items: center;
height: 200rpx;
width: 90%;
margin: 0 5%;
border-bottom: 2rpx solid #eee;
}
.countdown .item .txt-time {
background-color: #6EBEC7;
color: #fff;
border-radius: 10rpx;
font-size: 28rpx;
margin: 0 4rpx;
font-weight: bold;
height: 42rpx;
width: 66rpx;
line-height: 42rpx;
text-align: center;
}
js:
Page({
data: {
endTime: "2020-08-22 18:30:00",
},
timeFormat(param) {
return param < 10 ? '0' + param : param;
},
singleCountDown: function () {
var that = this;
var time = 0;
var obj = {};
var endTime = new Date(that.data.endTime.replace(/-/g, "/")).getTime();
var currentTime = new Date().getTime();
time = (endTime - currentTime) / 1000;
if (time > 0) {
var hou = parseInt(time / (60 * 60));
var min = parseInt(time % (60 * 60 * 24) % 3600 / 6www.yii666.com0);
var sec = parseInt(time % (60 * 60 * 24) % 3600 % 60);
obj = {
hou: that.timeFormat(hou),
min: that.timeFormat(min),
sec: that.timeFormat(sec)
}
} else {
obj = {
hou: "00",
min: "00",
sec: "00"
}
clearTimeout(that.data.timeIntervalSingle);
}
var timeIntervalSingle = setTimeout(that.singleCountDown, 1000);
that.setData({
timeIntervalSingle,
txtTime: obj,
})
},
onLoad: function (options) {
this.singleCountDown();
},
})
多个倒计时
wxml:
<view class="countdown">
&文章来源地址34123.htmllt;block wx:for="{{timeList}}" wx:key="index">
<view class="item">
{{item.title}}:
<view class="txt-time">{{item.time.hou}}</view>:
<view class="txt-time">{{item.time.min}}</view>:
<view class="txt-time">{{item.time.sec}}</view>
</view>
</block>
</view>
wxss: 跟上面单个倒计时样式一样,这里就不贴出来啦!
js:
Page({
data: {
timeList: [{
title: "a倒计时",
endTime: "2020-08-23 18:00:00",
}, {
title: "b倒计时",
endTime: "2020-08-25 20:00:00",
}, {
title: "c倒计时",
endTime: "2020-08-21 20:00:00",
}],
},
timeFormat(param) {
return param < 10 ? '0' + param : param;
},
severalCountDown: function () {
var that = this;
var time = 0;
var obj = {};
var timeList = that.data.timeList;
timeList.forEach(function (item) {
var endTime = new Date(item.endTime.replace(/-/g, "/")).getTime();
var currentTime = new Date().getTime();
time = (endTime - currentTime) / 1000;
if (time > 0) {
var hou = parseInt(time / (60 * 60));
var min = parseInt(time % (60 * 60 * 24) % 3600 / 60);
var sec = parseInt(time % (60 * 60 * 24) % 3600 % 60);
obj = {
hou: that.timeFormat(hou),
min: that.timeFormat(min),
sec: that.timeFo文章来源站点https://www.yii666.com/rmat(sec)
}
} else {
obj = {
hou: "00",
min: "00",
sec: "00"
}
clearTimeout(that.data.timeIntervalSeveral);
}
item.time = obj;
})
var timeIntwww.yii666.comervalSeveral = setTimeout(that.severalCountDown, 1000);
that.setData({
timeIntervalSeveral,
timeList,
})
},
onLoad: function (options) {
this.severalCountDown();
},
})
易错点:结束时间转换成时间戳时要特别特别注意把时间字符串的‘-’替换成‘/’,不然在ios中有报错
温馨提示:定时器推荐使用setTimeout(),而不推荐setinterval
好了,看到这里单个或者多个倒计时显示功能就实现成功啦,具体样式可以根据自己需求修改即可。
来源于:微信小程序 实现单个/多个倒计时功能显示