我正在开发一个android应用程序,我想知道检查Internet连接是否存在的最佳方法.我曾尝试使用连接管理器和networkinfo类,但无济于事,因为我的应用程序在没有网络的情况下不断崩溃,否则我会使用HttpConnection方法.有人可以提出宝贵的建议吗？

解决方法:

    URL myurl = new URL(url);
    URLConnection connection = myurl.openConnection();
    connection.setConnectTimeout(20 * 1000);
    HttpURLConnection httpConnection = (HttpURLConnection) connection;
    int responseCode = -1;
    try {
        responseCode = httpConnection.getResponseCode();
    } catch (Exception e1) {                    
            throw e1;                   
    }
    if (responseCode == HttpURLConnection.HTTP_OK) {
          //connection is OK and do what you want
          //...
    }
    else
    {
          //connection is not OK
          httpConnection.disconnect();
    }