javascript - 无法读取 cordova 网络插件中未定义错误的属性 'type'

Question

我正在使用 cordova 和 ionic 框架开发 android 应用程序，使用来自 这里(https://github.com/apache/cordova-plugin-network-information)。但是设备就绪警报触发，然后出现以下错误。

"TypeError: Cannot read property 'type' of undefined

这是导航器对象

navigator.connection.type 

我会在下一行中得到错误。

Answer 1

用我的

document.addEventListener("deviceready", onDeviceReady, false);
// Cordova is ready
function onDeviceReady() {
    checkConnection()
}

function checkConnection() {
    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]);
}