javascript - navigator.network.connection.type 返回 null 而不是 Connection.NONE

Question

由于某种原因，Phonegap 连接 API 返回 null

function checkConnection() {
    var networkState = navigator.network.connection.type;
    alert(networkState);
    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';

    document.getElementById('connections').innerHTML = states[networkState];
}

我从设备运行时调用的 onDeviceReady 函数运行此函数。

当一切都关闭时，我得到null。我不应该取回 Connection.NONE 而不是 null 吗？这真的很烦人，因为我无法检查手机是否已连接。不过，当 Wifi 打开时，它工作正常。

Answer 1

确保您已添加

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

在AndroidManifest.xml中