圆盘时钟 旋转时钟 数字时钟

圆盘时钟 旋转时钟 数字时钟

写在前面

仿荣耀手机时钟，设计的同款时钟效果

实现效果

实现原理

数字时钟

1. 利用Date内置对象获取当下的时间，通过处理呈现在页面上

这一步获取时间是非常简单的，通过Date下的一些属性就可以实现了

2. 背景采用的是一个炫彩流光的效果，利用了CSS3新增的动画效果

这部分的炫彩流光效果在之前的博客中有详细讲到

指针时钟

1. 通过定位将三根针重叠在一起，下端对齐都摆在原点，通过transfrom-origin属性，将旋转原点定为底部，也就是，让三根针转的时候绕中心点转

2. 在获取到时间的基础上，将时间转化为旋转的角度，每一个小时时针转30度，每分钟分钟转6度，每秒钟秒针转6度

这里有一点点的计算，需要理解一下

3. 为了让分针和时针是缓慢移动的，而不是突然间的抖动，让秒针转的时候，实时反馈给分针，分针转的时候反馈给时针

'rotate(' + (rotateH + (rotateM / 60)) + 'deg' + ')'

就像这样把分针旋转了多少反馈给时针，60分钟一个小时，所以是除以60

旋转时钟

1. 这里采用的是clip-path属性采取另一半的圆，圆环的效果采用的是大小圆的思路，用小圆盖在大半圆的上方
2. 圆环的旋转和指针的旋转异曲同工，圆环是反馈秒钟的，只需根据秒钟来判断即可
3. 为了让圆能够自转，需要将旋转原点设置为圆的中心点

实现代码

HTML结构

<!-- 转盘时钟 -->
<div class="clocker">
    <span class="long"></span>
    <span class="short"></span>
    <span class="mini"></span>
    <i class="twelve">12</i>
    <i class="three">3</i>
    <i class="six">6</i>
    <i class="nine">9</i>
    <div class="round"></div>
</div>
<!-- 旋转时钟 -->
<div class="rot">
    <div class="timing"></div>
    <div class="outer"></div>
    <div class="inner"></div>
</div>
<!-- 显示日期 -->
<div class="date">
    <p>中国标准时间</p>
    <div class="now"></div>
</div>
<!-- 数字时钟 -->
<div class = "clock">
    <span class ="hour"></span>
    <span class ="minute"></span>
    <span class ="second"></span>
</div>

CSS部分

* {
    margin: 0;
    padding: 0;
}
body {
    background-color: black;
}
@keyframes move {
    0% {
        background-position: 0%;
    }
    100% {
        background-position: 100%;
    }
}
/* 数字炫彩时钟 */
.clock {
    display: flex;
    position: relative;
    width: 400px;
    height: 100px;
    margin: 20px auto;
    background: linear-gradient(90deg,rgb(39,122,218),rgb(74,230,121),rgb(201,214,13),rgb(226,20,233),rgb(16,172,219));
    background-size: 400%;
    border-radius: 10px;
    justify-content: center;
    align-items: center;
    animation: move 3s linear infinite alternate;
}
.clock::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    width: 410px;
    height: 110px;
    background: linear-gradient(90deg,rgb(39,122,218),rgb(74,230,121),rgb(201,214,13),rgb(226,20,233),rgb(16,172,219));
    background-size: 400%;
    opacity: 1;
    border-radius: 10px;
    transition: all .6s;
    z-index: -1;
    filter: blur(10px);
    animation: move 3s linear infinite alternate;
}
.clock span {
    color: white;
    font-size: 50px;
    margin: 0px 30px;
    text-shadow: 0px 0px 12px white;
}
/* 日期样式 */
.date {
    width: 300px;
    height: 100px;
    margin: 0 auto;
}
p {
    text-align: center;
    letter-spacing: 4px;
    color: white;
    font-size: 34px;
}
.date .now {
    color: white;
    font-size: 20px;
    margin-top: 10px;
    letter-spacing: 3px;
    text-align: center;
}
/* 表盘 */
.clocker {
    /* display: none; */
    position: relative;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    margin: 50px auto;  
    background-color: rgb(179, 179, 179); 
}
.clocker span {
    display: inline-block;
    position: absolute;
    left: 50%;
    transform-origin: bottom;
}
/* 三根针 */
.long {
    top: 30px;
    width: 4px;
    height: 170px;
    background: linear-gradient(rgb(39,122,218),rgb(226,20,233),pink);
    background-size: 400%;
    transform: translate(-2px,0);
}
.short {
    position: relative;
    top: 60px;
    width: 8px;
    height: 140px;
    border-radius: 4px;
    background-color: black;
    transform: translate(-4px,0);
}
.short::before {
    position: absolute;
    bottom: 0;
    left: 3px;
    content: '';
    width: 2px;
    height: 60px;
    background-color: white;
    border-radius: 1px;
}
.mini {
    position: relative;
    top: 100px;
    width: 10px;
    height: 100px;
    border-radius: 5px ;
    background-color: black;
    transform: translate(-3px,0);
}
.mini::before {
    position: absolute;
    bottom: 0;
    left: 4px;
    content: '';
    width: 2px;
    height: 40px;
    background-color: white;
    border-radius: 1px;
}
/* 中间的小圆圈 */
.round {
    position: absolute;
    width: 20px;
    height: 20px;
    border: px solid black;
    /* background-color: white; */
    background: linear-gradient(rgb(39,122,218),rgb(226,20,233),pink);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    box-sizing: border-box;
    transform: translate(-8px,-10px);
}
/* 表盘数字的样式 */
i {
    font-style: normal;
    font-size: 24px;
    color: white;
}
.twelve {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-10px,0);
}
.three {
    position: absolute;
    top: 50%;
    right: 5px;
    transform: translate(0px,-10px);
}
.six {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translate(-10px,0);
}
.nine {
    position: absolute;
    top: 50%;
    left: 5px;
    transform: translate(0px,-10px);
}
/* 旋转时钟 */
.rot {
    display: none;
    position: relative;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    margin: 50px auto;
    background-color: rgb(41, 41, 41);
}
.timing {
    position: absolute;
    width: 260px;
    height: 260px;
    text-align: center;
    line-height: 260px;
    top: 50%;
    left: 50%;
    letter-spacing: 2px;
    transform: translate(-50%,-50%);
    font-size: 65px;
    color: black;
    z-index: 2;
}
.inner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background-color: rgb(243, 236, 236);
}
.outer {
    position: absolute;
    width: 400px;
    height: 400px;
    box-sizing: border-box;
    border-radius: 50%;
    background: linear-gradient(rgb(39,122,218),rgb(226,20,233),rgb(41, 41, 41));
    clip-path: inset( 0 50% 0 0 );
    transform-origin: center center;
}

JS代码

<script>
    /* 前面数字的三个span */
    var hour = document.querySelector('.hour');
    var minute = document.querySelector('.minute');
    var second = document.querySelector('.second');
    /* 获取圆盘的三根针 */
    var hourNeedle = document.querySelector('.mini');
    var minuteNeedle = document.querySelector('.short');
    var secondNeedle = document.querySelector('.long');
    /* 获取显示日期的div */
    var date = document.querySelector('.now');
    /* 旋转时钟 */
    var timing = document.querySelector('.timing');
    var outer = document.querySelector('.outer');
    /* 获取三个时钟 */
    var clocker = document.querySelector('.clocker');
    var rot = document.querySelector('.rot');
    console.log(clocker);
    /* 先来个立即执行函数让时间在页面打开时就显示 */
    (function times() {
        var time = new Date();
        var year = time.getFullYear();
        var month = time.getMonth();
        var dates = time.getDate();
        var day = time.getDay();
        var h = time.getHours();
        var days = ['星期天','星期一','星期二','星期三','星期四','星期五','星期六'];
        var divText = (month + 1) + '月' + dates + '日' + days[day];
        date.innerHTML = divText;
        h = h < 10 ? '0' + h : h;
        var m = time.getMinutes();
        m = m < 10 ? '0' + m : m;
        var s = time.getSeconds();
        s = s < 10 ? '0' + s : s;
        hour.innerHTML = h ;
        minute.innerHTML = m;
        second.innerHTML = s; 
        timing.innerHTML = h + ':' + m ;
        var rotateH = h * 30 ;
        var rotateM = m * 6;
        var rotateS = s * 6;
        hourNeedle.style.transform = 'rotate(' + rotateH + rotateM / 60 + 'deg' + ')';
        minuteNeedle.style.transform = 'rotate(' + (rotateM + (rotateS / 60)) + 'deg' + ')';
        secondNeedle.style.transform = 'rotate(' + rotateS + 'deg' + ')';
        outer.style.transform = 'rotate(' + rotateS + 'deg' + ')'
    }())
    /* 因为页面的加载需要一定的时间，所以这里会有一定的误差 */
    window.onload = function () {
    setInterval(timer,1000);
    function timer() {
        var time = new Date();
        var year = time.getFullYear();
        var month = time.getMonth();
        var dates = time.getDate();
        var day = time.getDay();
        var h = time.getHours();
        var days = ['星期天','星期一','星期二','星期三','星期四','星期五','星期六'];
        var divText = (month + 1) + '月' + dates + '日' + days[day];
        date.innerHTML = divText;
        h = h < 10 ? '0' + h : h;
        var m = time.getMinutes();
        m = m < 10 ? '0' + m : m;
        var s = time.getSeconds();
        s = s < 10 ? '0' + s : s;
        hour.innerHTML = h ;
        minute.innerHTML = m;
        second.innerHTML = s; 
        timing.innerHTML = h + ':' + m ;
        var rotateH = h * 30 ;
        var rotateM = m * 6;
        var rotateS = s * 6;
        hourNeedle.style.transform = 'rotate(' + (rotateH + (rotateM / 60)) + 'deg' + ')';
        minuteNeedle.style.transform = 'rotate(' + (rotateM + (rotateS / 60)) + 'deg' + ')';
        secondNeedle.style.transform = 'rotate(' + rotateS + 'deg' + ')';
        outer.style.transform = 'rotate(' + rotateS + 'deg' + ')'
    }     
    }
    clocker.onclick = function() {
        clocker.style.display = 'none';
        rot.style.display = 'block';
    }
    rot.onclick = function() {
        rot.style.display = 'none';
        clocker.style.display = 'block';
    }     
</script>

由于还没有学习canvas，技术水平不足，表盘的效果没有办法实现，圆环的实现，也只是通过了简单的裁剪，想不到实现圆弧的效果

代码有点长，如需完整代码，可以留言或私信