我开发并打包了一个基于cordova的Android离线HTML5 App。它工作得很好,一些资源可以在没有互联网连接的情况下本地访问,而另一些则需要互联网连接。当互联网连接断开时,会出现一个问题,因为它会显示一个网页,不可用的错误以及URL。
我已经尝试将此添加到我的HTML页面,但它不工作
<img src='http://www.example.com/mobile/index.html' onerror='alert("Connection dead");' />
上面的代码有什么问题?
为什么不使用cordova网络插件来测试连通性?
cordova plugin add cordova-plugin-network-information
Github - https://github.com/apache/cordova-plugin-network-information
简单示例-
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();