无法读取未定义的属性'connection'。(科尔多瓦) 3.2.0

Question

我无法检查连接状态。我已经成功添加了插件org.apache.facebook.networkinformation。但我还是犯了错误。

<script type="text/javascript" src="cordova.js"></script>
<script src="js/Connection.js"></script>
<script src="js/network.js"></script>
 <script type="text/javascript" charset="utf-8">
     document.addEventListener("deviceready", onDeviceReady(), false);

     function onDeviceReady() {
         alert(navigator.network.connection.type);
         alert(1);
     }

     function checkConnection() {
         alert(navigator.network.connection.type);
         var networkConnectionType = 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[networkConnectionType]);
     }
</script>

Answer 1

我刚刚检查了你的代码，我认为有什么东西坏了。试试这个剧本，告诉我，如果它对你有用的话！

function checkConnection() {
    var networkState = navigator.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.CELL]     = 'Cell generic connection';
    states[Connection.NONE]     = 'No network connection';
    alert('Connection type: ' + states[networkState]);
}
checkConnection();

在你的HTML代码中，你可以放一个按钮，比如->

<input type="button" onclick="checkConnection();">

由于用户评论而编辑

 document.addEventListener("deviceready", onDeviceReady, false);

 function onDeviceReady {
    var networkState = navigator.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.CELL]     = 'Cell generic connection';
    states[Connection.NONE]     = 'No network connection';
    alert('Connection type: ' + states[networkState]);
}