Touch Scroll for Iphone and Ipad with finger scrolling
While there are plenty of frameworks (e.g. jQuery Mobile, SenchaTouch, etc.) that can help get you started with mobile web apps. I found a pure JavaScript library called iScroll 4 very helpfull to create mobile websites. It have a list of nice features like:
'Scroll up and down'
'Snap to element'
'Pinch / Zoom'
iScroll support both iPhone/Ipod touch, iPad and Android.
In this tutorial I will teach you how to use iScroll 4 and implement a pages where you can scroll a part of a window with finger up and down without moving the rest of the screen.
Download iScroll's javascript file from this site:
http://cubiq.org/iscroll-4 - Click on download.
Insert this code in your
tag:<script type="application/javascript" src="iscroll.js"></script>
<script type="text/javascript">
var myScroll;
function loaded() {
myScroll = new iScroll('wrapper');
}
document.addEventListener('DOMContentLoaded', loaded, false);
</script>Remember to change src="iscroll.js" to where your placed the file.
Insert this code in your
tag:<div id="wrapper">
<div id="scroller">
<ul>
<li>Content</li>
..
..
</ul>
</div>
</div>In this example the UL element will be scrolled. The iScroll must be applied to the wrapper of the scrolling area.
Final result:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; 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">
<title>iScroll demo</title>
<script type="text/javascript" src="../../src/iscroll.js"></script>
<script type="text/javascript">
var scroll1;
function loaded() {
scroll1 = new iScroll('standard');
}
document.addEventListener('touchmove', function (e) { e.preventDefault(); }, false);
document.addEventListener('DOMContentLoaded', loaded, false);
</script>
<style type="text/css" media="all">
ul,li {
padding:0;
margin:0;
border:0;
}
body {
font-size:12px;
-webkit-user-select:none;
-webkit-text-size-adjust:none;
font-family:helvetica;
padding:20px;
}
#standard {
position:relative; z-index:1;
display:block; float:left;
width:300px; height:400px;
background:#aaa;
overflow:auto;
border:1px solid #aaa;
}
.scroller {
position:absolute; z-index:1;
/* -webkit-touch-callout:none;*/
-webkit-tap-highlight-color:rgba(0,0,0,0);
width:100%;
padding:0;
}
.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;
}
#myFrame {
position:absolute;
top:0; left:0;
}
</style>
</head>
<body>
<div id="standard">
<div class="scroller">
<ul>
<li><strong>Standard iScroll</strong></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>
</ul>
</div>
</div>
</body>
</html>