iscroll4实现轮播图效果
相信很多人和我一样，在使用iscroll的是时候只知道可以手动滑动，不知道iscroll的轮播怎么实现一下就是我做的一个轮播效果，亲测有效；
1.html,当然可以动态添加下面的小圆点
<div id="wrapper"> <div id="scroller"> <ul id="thelist"> <li><strong>1.</strong> <em>A robot may not injure a human being or, through inaction, allow a human being to come to harm.</em></li> <li><strong>2.</strong> <em>A robot must obey any orders given to it by human beings, except where such orders would conflict with the First Law.</em></li> <li><strong>3.</strong> <em>A robot must protect its own existence as long as such protection does not conflict with the First or Second Law.</em></li> <li><strong>4Zeroth Law:</strong> <em>A robot may not harm humanity, or, by inaction, allow humanity to come to harm.</em></li> </ul> </div> </div> <div id="nav"> <div id="prev" onclick="myScroll.scrollToPage('prev', 0);return false">← prev</div> <ul id="indicator"> <li class="active">1</li> <li>2</li> <li>3</li> <li>4</li> </ul> <div id="next" onclick="myScroll.scrollToPage('next', 0);return false">next →</div> </div>
2.css
<style type="text/css" media="all">
body, ul, li {
padding: 10px;
margin: 0;
}
body {
font-size: 12px;
-webkit-user-select: none;
-webkit-text-size-adjust: none;
font-family: helvetica;
}
#wrapper {
width:100%;
height: 160px;
float: left;
position: relative; /* On older OS versions "position" and "z-index" must be defined, */
z-index: 1; /* it seems that recent webkit is less picky and works anyway. */
overflow: hidden;
background: #aaa;
-webkit-border-radius: 10px;
-moz-border-radius: 10px;
-o-border-radius: 10px;
border-radius: 10px;
background: #e3e3e3;
}
#scroller {
/*width: 2100px;*/
height: 100%;
float: left;
padding: 0;
}
#scroller ul {
list-style: none;
display: block;
float: left;
width: 100%;
height: 100%;
padding: 0;
margin: 0;
text-align: left;
}
#scroller li {
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
-o-box-sizing: border-box;
box-sizing: border-box;
display: block;
float: left;
/*width: 300px;*/
height: 160px;
text-align: center;
font-family: georgia;
font-size: 18px;
line-height: 140%;
}
#nav {
width:100%;
float: left;
}
#prev, #next {
float: left;
font-weight: bold;
font-size: 14px;
padding: 5px 0;
width: 80px;
}
#next {
float: right;
text-align: right;
}
#indicator, #indicator > li {
display: block;
float: left;
list-style: none;
padding: 0;
margin: 0;
}
#indicator {
width: 110px;
padding: 12px 0 0 30px;
}
#indicator > li {
text-indent: -9999em;
width: 8px;
height: 8px;
-webkit-border-radius: 4px;
-moz-border-radius: 4px;
-o-border-radius: 4px;
border-radius: 4px;
background: #ddd;
overflow: hidden;
margin-right: 4px;
}
#indicator > li.active {
background: #888;
}
#indicator > li:last-child {
margin: 0;
}
</style>
3.js，这里我用的jquery 做的测试，，你也可以根据自己的喜好选择其他库
<script src="js/jquery.js"></script>
<script src="js/iscrollc.js"></script>
<script type="text/javascript">
var myScroll;
var timer;
var i=0;
var obj=$('#wrapper');
var obj_w=obj.outerWidth(true);
var oli=obj.find('li');
var oli_l=oli.length;
oli.outerWidth(obj_w);
$('#scroller').width(oli_l*obj_w);
function loaded() {
myScroll = new iScroll('wrapper', {
snap: true,
momentum: false,
hScrollbar: false,
onScrollEnd: function () {
document.querySelector('#indicator > li.active').className = '';
document.querySelector('#indicator > li:nth-child(' + (this.currPageX+1) + ')').className = 'active';
},
onBeforeScrollStart:function(){
clearInterval(timer);
},
onTouchEnd:function(){
timer=setInterval(gund,2000);
i=myScroll.currPageX
},
});
timer=setInterval(gund,2000);
function gund(){ //每5秒滚动
i++;
if(i==oli_l){
i=0;
myScroll.scrollToPage(0, 0, 1000); //滚回第一页
} else {
myScroll.scrollToPage('next', 0);
};
document.title=i
};
};
document.addEventListener('DOMContentLoaded', loaded, false);
</script>
html 和css不用说，都是行家，主要是js，首先是初始化，再根据iscorll提供的API修改相应的代码，这里主要用刀onBeforeScrollStart，onScrollEnd，onTouchEnd这三个事件，同时结合scrollToPage（），currPageX事件进行对应的定时修改，滑动之后同步自动滚动的页数，就ok了，其实写这个主要是熟悉API。。。