【www.bbyears.com--css3教程】
本身我做这一个ui的目的是支持移动端的页面，而webkit上也正好支持单标记的input元素是使用伪类（:before或:after），所以我没做更多的支持和优化，我只是想尽量的保持html干净，所以没用其他元素做模拟。如果你要使用在桌面应用上，或支持其他浏览器，可以自己稍微修改一下，反正我是没测试过。
今天继续分享一个iOS风格的switch开关按钮，样子也非常常见，如图：
主要是使用了来模拟实现，具体的HTML：
在实际的使用中后来又增加了两个过渡效果，分别加 mui-switch-animbg和mui-switch-anim 类即可，具体效果查看下面的demo页面。
CSS代码（SCSS导出的，排版有些奇怪）：
.mui-switch {
width: 52px;
height: 31px;
position: relative;
border: 1px solid #dfdfdf;
background-color: #fdfdfd;
box-shadow: #dfdfdf 0 0 0 0 inset;
border-radius: 20px;
border-top-left-radius: 20px;
border-top-right-radius: 20px;
border-bottom-left-radius: 20px;
border-bottom-right-radius: 20px;
background-clip: content-box;
display: inline-block;
-webkit-appearance: none;
user-select: none;
outline: none; }
.mui-switch:before {
content: "";
width: 29px;
height: 29px;
position: absolute;
top: 0px;
left: 0;
border-radius: 20px;
border-top-left-radius: 20px;
border-top-right-radius: 20px;
border-bottom-left-radius: 20px;
border-bottom-right-radius: 20px;
background-color: #fff;
box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4); }
.mui-switch:checked {
border-color: #64bd63;
box-shadow: #64bd63 0 0 0 16px inset;
background-color: #64bd63; }
.mui-switch:checked:before {
left: 21px; }
.mui-switch.mui-switch-animbg {
transition: background-color ease 0.4s; }
.mui-switch.mui-switch-animbg:before {
transition: left 0.3s; }
.mui-switch.mui-switch-animbg:checked {
box-shadow: #dfdfdf 0 0 0 0 inset;
background-color: #64bd63;
transition: border-color 0.4s, background-color ease 0.4s; }
.mui-switch.mui-switch-animbg:checked:before {
transition: left 0.3s; }
.mui-switch.mui-switch-anim {
transition: border cubic-bezier(0, 0, 0, 1) 0.4s, box-shadow cubic-bezier(0, 0, 0, 1) 0.4s; }
.mui-switch.mui-switch-anim:before {
transition: left 0.3s; }
.mui-switch.mui-switch-anim:checked {
box-shadow: #64bd63 0 0 0 16px inset;
background-color: #64bd63;
transition: border ease 0.4s, box-shadow ease 0.4s, background-color ease 1.2s; }
.mui-switch.mui-switch-anim:checked:before {
transition: left 0.3s; }
/*# sourceMappingURL=mui-switch.css.map */
SCSS代码：
@mixin borderRadius($radius:20px) {
border-radius: $radius;
border-top-left-radius: $radius;
border-top-right-radius: $radius;
border-bottom-left-radius: $radius;
border-bottom-right-radius: $radius;
}
$duration: .4s;
$checkedColor: #64bd63;
.mui-switch {
width: 52px;
height: 31px;
position: relative;
border: 1px solid #dfdfdf;
background-color: #fdfdfd;
box-shadow: #dfdfdf 0 0 0 0 inset;
@include borderRadius();
background-clip: content-box;
display: inline-block;
-webkit-appearance: none;
user-select: none;
outline: none;
&:before {
content: "";
width: 29px;
height: 29px;
position: absolute;
top: 0px;
left: 0;
@include borderRadius();
background-color: #fff;
box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}
&:checked {
border-color: $checkedColor;
box-shadow: $checkedColor 0 0 0 16px inset;
background-color: $checkedColor;
&:before {
left: 21px;
}
}
&.mui-switch-animbg {
transition: background-color ease $duration;
&:before {
transition: left 0.3s;
}
&:checked {
box-shadow: #dfdfdf 0 0 0 0 inset;
background-color: $checkedColor;
transition: border-color $duration, background-color ease $duration;
&:before {
transition: left 0.3s;
}
}
}
&.mui-switch-anim {
transition: border cubic-bezier(0, 0, 0, 1) $duration, box-shadow cubic-bezier(0, 0, 0, 1) $duration;
&:before {
transition: left 0.3s;
}
&:checked {
box-shadow: $checkedColor 0 0 0 16px inset;
background-color: $checkedColor;
transition: border ease $duration, box-shadow ease $duration, background-color ease $duration*3;
&:before {
transition: left 0.3s;
}
}
}
}
发现问题欢迎微博上@愚人码头，带上截图，机型，浏览器版本等，感激不尽！