1.前言,看过很多的轮播器代码;但是心中,老想着有没有简单的办法来实现同样的效果。搜到这个(下方链接),眼前一亮,便动手实践改进。主要工作,还是对文章第一段提出的“如果中间间隔有图片,那么在css3动画的执行过程中还是会看到,比较不给力”问题,进行改进,以及实现自动轮播。
不知道是哪位大神写出来的,也不知道后续有没有更新解决方案,总之,没搜到,于是,献丑贴代码吧。
使用html5+css3来实现slider切换效果告别javascript+css链接描述
2.源码链接里有,这里只说改变的地方,和自己写的代码。
2.1 将CSS样式处,#slidebrs .inner处的过渡动画取出,改为新的animated类,代码
@charset utf-8;
/* common */
body {
background: #ddd;
overflow-x: hidden;
}
img {
max-width: 70%;
}
#bd {
width: 960px;
margin: 100px auto;
max-width: 960px;
}
/* module: sliders */
#sliders {
border-radius: 5px;
box-shadow: 1px 1px 4px #666;
padding: 1%;
background: #fff;
}
#overflow {
width: 100%;
overflow: hidden;
}
#sliders .inner {
width: 500%;
cursor: pointer;
}
.animated {
transiton: all 1s linear;
-webkit-transition: all 1s linear;
}
#sliders article {
float: left;
width: 20%;
}
#sliders article .info {
position: absolute;
opacity: 0;
padding: 30px;
color: #666;
font-family: Arial;
transition: opacity 0.1s ease-out;
-webkit-transform: translateZ(0);
-webkit-transition: opacity 0.1s ease-out;
}
#sliders article .info h1 {
font-size: 22px;
font-weight: bold;
margin: 0 0 5px;
}
#sliders article .info a {
color: #666;
text-decoration: none;
}
/* module: controls */
#controls {
height: 50px;
width: 100%;
margin-top: -25%;
}
#controls label {
display: none;
width: 50px;
height: 50px;
opacity: 0.3;
cursor: pointer;
}
#controls label:hover {
opacity: 1;
}
/* module: active */
#active {
width: 40%;
margin: 23% auto 0 auto;
text-align: center;
}
#active label {
display: inline-block;
width: 10px;
height: 10px;
border-radius: 5px;
background: #bbb;
border-color: #777;
}
#active label:hover {
background: #ccc;
}
/* input checked change style */
#slider1:checked~ #active label:nth-child(1),
#slider2:checked~ #active label:nth-child(2),
#slider3:checked~ #active label:nth-child(3),
#slider4:checked~ #active label:nth-child(4),
#slider5:checked~ #active label:nth-child(5) {
background: #333;
}
#slider1:checked~ #controls label:nth-child(5),
#slider2:checked~ #controls label:nth-child(1),
#slider3:checked~ #controls label:nth-child(2),
#slider4:checked~ #controls label:nth-child(3),
#slider5:checked~ #controls label:nth-child(4) {
display: block;
float: left;
background: url(../img/prev.png) no-repeat;
margin-left: -70px;
}
#slider1:checked~ #controls label:nth-child(2),
#slider2:checked~ #controls label:nth-child(3),
#slider3:checked~ #controls label:nth-child(4),
#slider4:checked~ #controls label:nth-child(5),
#slider5:checked~ #controls label:nth-child(1) {
display: block;
float: right;
background: url(../img/next.png) no-repeat;
margin-right: -70px;
}
#slider1:checked~ #sliders article:nth-child(1) .info,
#slider2:checked~ #sliders article:nth-child(2) .info,
#slider3:checked~ #sliders article:nth-child(3) .info,
#slider4:checked~ #sliders article:nth-child(4) .info,
#slider5:checked~ #sliders article:nth-child(5) .info {
opacity: 1;
transition: all 0.6s ease-out 1s;
-webkit-transition: all 0.6s ease-out 1s;
}
#slider1:checked~ #sliders .inner {
margin-left: 0;
}
#slider2:checked~ #sliders .inner {
margin-left: -100%;
}
#slider3:checked~ #sliders .inner {
margin-left: -200%;
}
#slider4:checked~ #sliders .inner {
margin-left: -300%;
}
#slider5:checked~ #sliders .inner {
margin-left: -400%;
}
也有其它有些小样式变化,比如,inner添加了cursor:pointer;
还在HTML中input标签全添加了hidden属性,用于隐藏一个小BUG,BUG结尾有说,但影响不大。
2.2 以下是jQuery代码,版本2.1.4 ,手打代码,出错莫怪。
<div id="bd">
<input checked type="radio" name="slider" id="slider1">
<input type="radio" name="slider" id="slider2">
<input type="radio" name="slider" id="slider3">
<input type="radio" name="slider" id="slider4">
<input type="radio" name="slider" id="slider5">
<div id="sliders">
<div id="overflow">
<div class="inner">
<article>
<div class="info">
<h1>Title1</h1>
<a href="#">Description1</a>
</div>
<img src="img/1.jpg" />
</article>
<article>
<div class="info">
<h1>Title2</h1>
<a href="#">Description2</a>
</div>
<img src="img/2.jpg" />
</article>
<article>
<div class="info">
<h1>Title3</h1>
<a href="#">Description3</a>
</div>
<img src="img/3.jpg" />
</article>
<article>
<div class="info">
<h1>Title4</h1>
<a href="#">Description4</a>
</div>
<img src="img/4.jpg" />
</article>
<article>
<div class="info">
<h1>Title5</h1>
<a href="#">Description5</a>
</div>
<img src="img/2.jpg" />
</article>
</div>
</div>
</div>
<div id="controls">
<label for="slider1"></label>
<label for="slider2"></label>
<label for="slider3"></label>
<label for="slider4"></label>
<label for="slider5"></label>
</div>
<div id="active">
<label for="slider1"></label>
<label for="slider2"></label>
<label for="slider3"></label>
<label for="slider4"></label>
<label for="slider5"></label>
</div>
</div>
$(function() {
var $input = $("input");
var $inner = $input.siblings("#sliders").find(".inner");
var $article = $("article");
var $prevDom = $("input:checked");
var $prevDomIndex = $("input:checked").index();
$input.each(function() {
var _this = $(this);
_this.on("click", function() {
var _index = _this.index();
$inner.addClass("animated");
if($prevDom[0].id != ("slider" + _index) && $prevDom[0].id != ("slider" + (_index + 2))) { //如果点击图片间隔一个及以上,取消动画过程。不会闪闪闪眼睛。。
$inner.removeClass("animated");
}
$prevDom = _this;
$prevDomIndex = _index;
});
});
var timer = setInterval(autoAnimate, 3000);
$article.on("mouseover", function() {
clearInterval(timer);
}).on("mouseout", function() {
timer = setInterval(autoAnimate, 3000);
});
function autoAnimate() {
if($prevDomIndex == $input.length - 1) {
$input.eq($prevDomIndex).prop("checked", false);
$inner.removeClass("animated");
$input.eq(0).prop("checked", true);
} else {
$inner.addClass("animated");
$prevDom.prop("checked", false).next("input").prop("checked", true);
}
$prevDom = $("input:checked");
$prevDomIndex = $("input:checked").index();
}
})
3.结语,小BUG就是,删除input标签的hidden属性;执行以下顺序,在input标签组上,若点击间隔为一个及以上,下一次点击相邻图片时,不会出现动画。 但是下方laber标签就没有这个BUG,没有去想。 匆匆结束,代码肯定也可以优化。
收获就是,深深认识到了CSS3中“~“选择符的厉害之处,以及laber input的灵活运用。
肯定还有其它解决思路,献丑,求抱大神大腿,求大神指点。