这个代码也非常简单，核心是HTML5中GeoLocation API，函数原型定义如下：
void getCurrentPosition(in PositionCallback successCallback,
in optional PositionErrorCallback errorCallback,
in optional PositionOptions options);
标签： jQuery Mobile
代码片段(3)[全屏查看所有代码]
1. [代码][JavaScript]代码
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<!DOCTYPE html><html> <head>
<meta charset="utf-8" />
<meta name="viewport" content="width = device-width; initial-scale=1">
<title>GeoLocation API演示程序</title>
<link rel="stylesheet" href="jquery.mobile.css" />
<script src="jquery.min.js"></script>
<script src="jquery.mobile.min.js"></script>
<script type="text/javascript">
function startgps()
{
var gps = navigator.geolocation;
if (gps)
{
gps.getCurrentPosition(showgps,
function(error)
{
alert("Got an error, code: " + error.code + " message: "+ error.message);
},
{maximumAge: 10000}); // 这里设置超时为10000毫秒，即10秒
}
else
{
showgps();
}
}
function showgps(position)
{
if (position)
{
var latitude = position.coords.latitude;
var longitude = position.coords.longitude;
alert("latitude: " + latitude + "\r\n longitude: "+ longitude);
}
else
alert("position is null");
}
</script>
</head>
<body>
<section class="ui-page ui-body-c ui-page-active" data-url="page1" id="page1" data-role="page">
<header role="banner" class="ui-bar-a ui-header" data-role="header">
<h1 aria-level="1" role="heading" tabindex="0" class="ui-title">GeoLocation API Demo</h1>
</header>
<div role="main" data-role="content" class="ui-content">
<input type="button" value="我的位置" onclick="startgps()"/>
</div>
<footer role="contentinfo" class="ui-bar-a ui-footer" data-role="footer">
<h1 aria-level="1" role="heading" tabindex="0" class="ui-title">Allan Yan</h1>
</footer>
</section>
</html> |
2. [图片] IMG_0073.PNG
3. [图片] IMG_0074.PNG
