Правильно ли вы настроили приложение PhoneGap?Я заметил, что вы пропустили <body onload="init();" >
Следующий код должен работать, я просто набрал его для вас, но не скомпилировал: -P
<!DOCTYPE HTML>
<html>
<head>
<title>navigator.network.connection.type Example</title>
<script type="text/javascript" charset="utf-8" src="js/phonegap-1.3.0.js"></script>
<script type="text/javascript">
function init() {
document.addEventListener("deviceready", onDeviceReady, false);
}
function checkConnection() {
var networkState = navigator.network.connection.type;
var states = {};
states[Connection.UNKNOWN] = 'Unknown connection';
states[Connection.ETHERNET] = 'Ethernet connection';
states[Connection.WIFI] = 'WiFi connection';
states[Connection.CELL_2G] = 'Cell 2G connection';
states[Connection.CELL_3G] = 'Cell 3G connection';
states[Connection.CELL_4G] = 'Cell 4G connection';
states[Connection.NONE] = 'No network connection';
alert('Connection type: ' + states[networkState]);
//navigator.notification.alert('Connection type: ' + states[networkState]);
}
</script>
</head>
<body onload="init();>
<h1>Check connection</h1>
<p>A dialog box will report the network state.</p>
<a href="javascript:checkConnection()">Click</a>
</body>
</html>