简略的css3全屏滚动-左右方向

简单的css3全屏滚动-左右方向
据说 translateZ(0)可以触发GPU渲染,提高动画的性能。

切换的属性变化,可以有2种:
1. transform:translateX的值
2. left的值;

这里动画切换比较简单,看不出有什么优势。

二、采用translateX属性值控制容器位置:

<!DOCTYPE html>
<html><head>
	<title>qqqqqqqq</title>
	<meta charset="utf-8">
	  <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=0, minimum-scale=1.0, maximum-scale=1.0" />
	<meta name="apple-mobile-web-app-capable" content="yes"/>
	<meta name="apple-mobile-web-app-status-bar-style" content="black"/>
	<meta content="telephone=no" name="format-detection" />
	<link type="text/css" href="lib/normalize.css" rel="stylesheet"/>
	<style>
		body,#wrapper{min-height:100%;height:100%;overflow-x:hidden;/**/}
		
		
		#wrapper section{position:absolute;width:100%;height:100%;min-height:100%;overflow:hidden;}
		section{top:0;left:0;opacity:0;-webkit-transform:translate(100%,0,0);z-index:1;}
		section.active{-webkit-transform:translateX(0);z-index:2;opacity:1; /*transition:all 1s;*/}
		
		/*更改元素的display属性,一些浏览器会触发重新布局,导致里面滚动条回到顶部。
		section.none{display:none;}*/
		
		/*真正的内容容器*/
		section .container{height:100%;overflow:auto;}
		
		section.slideLeftPre{
			-webkit-animation: slideLeftPre 1s 1;
		}
		@-webkit-keyframes slideLeftPre{
			0%{-webkit-transform:translateX(0);opacity:1;z-index:2;}
			99%{-webkit-transform:translateX(-99%);opacity:1;z-index:2;}
			100%{-webkit-transform:translateX(-100%);opacity:0;z-index:2;}
		}
		
		section.slideLeftNext{
			-webkit-animation: slideLeftNext 1s 1;
		}
		@-webkit-keyframes slideLeftNext{
			0%{-webkit-transform:translateX(100%);opacity:1;z-index:2;}
			100%{-webkit-transform:translateX(0);opacity:1;z-index:2;}
		}
		
		section.slideRightPre{
			-webkit-animation: slideRightPre 1s 1;
		}
		@-webkit-keyframes slideRightPre{
			0%{-webkit-transform:translateX(0);opacity:1;z-index:2;}
			99%{-webkit-transform:translateX(99%);opacity:1;z-index:2;}
			100%{-webkit-transform:translateX(100%);opacity:0;z-index:2;}
		}
		
		section.slideRightNext{
			-webkit-animation: slideRightNext 1s 1;
		}
		@-webkit-keyframes slideRightNext{
			0%{-webkit-transform:translateX(-100%);opacity:1;z-index:2;}
			100%{-webkit-transform:translateX(0);opacity:1;z-index:2;}
		}
		
		.s1{background:#ccc;}
		.s2{background:gold;}
		.s3{background:pink;}
		.s4{background:green;}
		.swipeTip{position:absolute;width:3em;line-height:2em;bottom:0;left:0;right:0;margin:auto;z-index:10;text-align:center;
			color:#fff;
			background:#000;
			border-radius:100%;
			/**/-webkit-animation: st 1s infinite;
			animation: st 1s infinite;
		}
		@-webkit-keyframes st{
			0%{bottom:0;}
			50%{bottom:0.8em;}
			100%{bottom:0em;}
		}
		@keyframes st{
			0%{bottom:0;}
			50%{bottom:0.4em;}
			100%{bottom:0em;}
		}
		.slideLeft,.slideRight{font-size:36px;}
		
		
	</style>
</head>
<body onload="init()">
<div id="wrapper">
	<section class="s1 active">
		<div class="container">
			<div style="border:1px solid red;height:1000px;"> 
				<p>只是前面的一段文字</p>
				<a href="#" class="slideLeft">向左</a>
				<a href="#" class="slideRight">向右</a>
			</div>
			s1
			<a href="#" class="slideLeft">向左</a>
			<a href="#" class="slideRight">向右</a>
		</div>
	</section>
	<section class="s2">
		<div class="container">
			<div style="border:1px solid blue;height:300px;">我是S2 </div>
			s2<a href="#" class="slideLeft">向左</a>
			<a href="#" class="slideRight">向右</a>
		</div>
	</section>
	<section class="s3">
		<div class="container">
			s3<a href="#" class="slideLeft">向左</a>
			<a href="#" class="slideRight">向右</a>
		</div>
	</section>
	<section class="s4">
		<div class="container">
			s4<a href="#" class="slideLeft">向左</a>
			<a href="#" class="slideRight">向右</a>
		</div>
	</section>
</div>
<script>
var pfx = ["webkit", "moz", "MS", "o", ""];
function PrefixedEvent(element, type, callback) {
	for (var p = 0; p < pfx.length; p++) {
		if (!pfx[p]) type = type.toLowerCase();
		element.addEventListener(pfx[p]+type, callback, false);
	}
}

var UID = (function(){
	var id = new Date().getTime();
	return function(){
		return id++;
	}
})();

function init(){
	
	var sections = document.querySelectorAll("section");
	var size = sections.length;
	var index = 0;
	var lock = false;
	

	for(var i=0; i < size; i++){
		
		
		PrefixedEvent(sections[i], "AnimationEnd", function(){
			var cls = "";
			if(/Next/.test(this.className)){
				cls = " active";
				lock = false; 
			}else{
				cls = " none";
			}
			this.className = this.className.replace(/slideLeftPre|slideLeftNext|slideRightPre|slideRightNext/g,"").replace(/\s*$/,"") + cls;
		});
		
	}
	document.body.addEventListener("touchmove",function(e){
		//e.preventDefault();
	},false);
	
	
	document.body.addEventListener("touchend",function(e){
		e.preventDefault();
		if(e.target.tagName.toUpperCase() === "A"){
			e.preventDefault();
			
			if(lock){
				return;
			}
			lock = true;
			
			if(e.target.className === "slideLeft"){

				sections[index].className = sections[index].className.replace(/\s*active\s*/g,"") + " slideLeftPre";
				index++;
				index = index % size;
				sections[index].className = sections[index].className.replace(/\s*none\s*/g,"") + " slideLeftNext";		
			}else if(e.target.className === "slideRight"){

				sections[index].className = sections[index].className.replace(/\s*active\s*/g,"") + " slideRightPre";
				index--;
				index = (index+size) % size;
				sections[index].className = sections[index].className.replace(/\s*none\s*/g,"") + " slideRightNext";		
			}
		}
		
	},false);

}

</script>
</body></html>


二、采用left属性值控制容器位置:
section{top:0;left:100%;opacity:0;}
section.active{left:0;z-index:2;opacity:1; /*transition:all 1s;*/}
		
section.slideLeftPre{
			-webkit-animation: slideLeftPre 1s 1;
		}
		@-webkit-keyframes slideLeftPre{
			0%{left:0;opacity:1}
			99%{left:-99%;opacity:1}
			100%{left:-100%;opacity:0}
		}
		
		section.slideLeftNext{
			-webkit-animation: slideLeftNext 1s 1;
		}
		@-webkit-keyframes slideLeftNext{
			0%{left:100%;opacity:1;z-index:2;}
			100%{left:0;opacity:1;z-index:2;}
		}
		
		section.slideRightPre{
			-webkit-animation: slideRightPre 1s 1;
		}
		@-webkit-keyframes slideRightPre{
			0%{left:0;opacity:1}
			99%{left:99%;opacity:1}
			100%{left:100%;opacity:0}
		}
		
		section.slideRightNext{
			-webkit-animation: slideRightNext 1s 1;
		}
		@-webkit-keyframes slideRightNext{
			0%{left:-100%;opacity:1;z-index:2;}
			100%{left:0;opacity:1;z-index:2;}
		}