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1.0 什么是iscroll.js?
就是一个Javascript 库，或者说是一个JQuery 插件，能在手机端实现下拉刷新，滚动翻页,双指放大缩小等特效。
可以模拟原生iOS应用里的滚动列表操作。
下载地址：https://github.com/cubiq/iscroll/
2.0为什么要用iscroll.js ？
css属性overflow：scroll在ios5之前是不支持的，所以可以通过这个插件来在所有浏览器上支持这种滚动。
3.0如何使用iscroll,js?
直接看demo：
https://github.com/cubiq/iscroll/tree/master/demos。
简单来说就是
1.引入iscroll.js, 定义myScroll，内容里面div 父id写wrapper，子写scroller
<!DOCTYPE html> <html> <head> <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"> <title>iScroll demo: scroll to element</title> <script type="text/javascript" src="iscroll.js"></script> <script type="text/javascript"> var myScroll; function loaded () { myScroll = new IScroll(‘#wrapper‘, { mouseWheel: true, click: true }); } document.addEventListener(‘touchmove‘, function (e) { e.preventDefault(); }, false); </script> <style type="text/css"> * { -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box; } html { -ms-touch-action: none; } body,ul,li { padding: 0; margin: 0; border: 0; } body { font-size: 12px; font-family: ubuntu, helvetica, arial; overflow: hidden; /* this is important to prevent the whole page to bounce */ } #header { position: absolute; z-index: 2; top: 0; left: 0; width: 100%; height: 45px; line-height: 45px; background: #CD235C; padding: 0; color: #eee; font-size: 20px; text-align: center; font-weight: bold; } #footer { position: absolute; z-index: 2; bottom: 0; left: 0; width: 100%; height: 48px; background: #444; padding: 0; border-top: 1px solid #444; } #wrapper { position: absolute; z-index: 1; top: 45px; bottom: 48px; left: 0; width: 100%; background: #ccc; overflow: hidden; } #scroller { position: absolute; z-index: 1; -webkit-tap-highlight-color: rgba(0,0,0,0); width: 100%; -webkit-transform: translateZ(0); -moz-transform: translateZ(0); -ms-transform: translateZ(0); -o-transform: translateZ(0); transform: translateZ(0); -webkit-touch-callout: none; -webkit-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none; -webkit-text-size-adjust: none; -moz-text-size-adjust: none; -ms-text-size-adjust: none; -o-text-size-adjust: none; text-size-adjust: none; } #scroller ul { list-style: none; padding: 0; margin: 0; width: 100%; text-align: left; } #scroller li { padding: 0 10px; height: 40px; line-height: 40px; border-bottom: 1px solid #ccc; border-top: 1px solid #fff; background-color: #fafafa; font-size: 14px; } </style> </head> <body onload="loaded()"> <div id="header">iScroll</div> <div id="wrapper"> <div id="scroller"> <ul> <li><a href="javascript:myScroll.scrollToElement(document.querySelector(‘#scroller li:nth-child(10)‘))">Scroll to element 10</a></li> <li>Pretty row 2</li> <li>Pretty row 3</li> <li>Pretty row 4</li> <li>Pretty row 5</li> <li>Pretty row 6</li> <li>Pretty row 7</li> <li>Pretty row 8</li> <li>Pretty row 9</li> <li><a href="javascript:myScroll.scrollToElement(document.querySelector(‘#scroller li:nth-child(25)‘), null, null, true)">Center element 25 to screen</a></li> <li>Pretty row 11</li> <li>Pretty row 12</li> <li>Pretty row 13</li> <li>Pretty row 14</li> <li>Pretty row 15</li> <li>Pretty row 16</li> <li>Pretty row 17</li> <li>Pretty row 18</li> <li>Pretty row 19</li> <li>Pretty row 20</li> <li>Pretty row 21</li> <li>Pretty row 22</li> <li>Pretty row 23</li> <li>Pretty row 24</li> <li><a href="javascript:myScroll.scrollToElement(document.querySelector(‘#scroller li:nth-child(50)‘), 1200, null, null, IScroll.utils.ease.elastic)">Scroll to the last element with elastic easing</a></li> <li>Pretty row 26</li> <li>Pretty row 27</li> <li>Pretty row 28</li> <li>Pretty row 29</li> <li>Pretty row 30</li> <li>Pretty row 31</li> <li>Pretty row 32</li> <li>Pretty row 33</li> <li>Pretty row 34</li> <li>Pretty row 35</li> <li>Pretty row 36</li> <li>Pretty row 37</li> <li>Pretty row 38</li> <li>Pretty row 39</li> <li>Pretty row 40</li> <li>Pretty row 41</li> <li>Pretty row 42</li> <li>Pretty row 43</li> <li>Pretty row 44</li> <li>Pretty row 45</li> <li>Pretty row 46</li> <li>Pretty row 47</li> <li>Pretty row 48</li> <li>Pretty row 49</li> <li>Pretty row 50</li> </ul> </div> </div> <div id="footer"></div> </body> </html>
wrapper翻译是包装，理解为容器
scroller翻译是卷纸，理解为滚动条
position: absolute; 绝对定位 ：
父级没有position，就以浏览器左上角为原始点进行
父级有position的话，就以父级的左上角来进行定位
position：relative; 相对定位 ：
以父级的内容左上角来进行定位，
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每次写网页最好都在meta 标签里面添加一个
用来清理缓存
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原文地址：http://www.cnblogs.com/leong/p/4194394.html
