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 + "
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> |
