Access network availability state android

Question

I am developing an application where i want to access whether there is internet connectivity or not. I can access the network state by using

private Boolean isNetworkAvailable() {
    ConnectivityManager connectivityManager 
    = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
    return activeNetworkInfo != null && activeNetworkInfo.isConnected();
}

But this just returns whether the mobile is connected to internet or not. I want to know if there is internet availability after connecting. Like, may be the server is down or internet not available. Please let me know how to accomplish this!

Answer 1

Try like this,

URL url = new URL("Your URL");
URLConnection conexion = url.openConnection();
conexion.setConnectTimeout(10000); // Don't forget to put a time limit
conexion.connect();

After timeout (10 secs for above mentioned example), It will through time out exception. So You can use it to check whether Internet access is available or not.

Answer 2

To check that it's a working Internet connection and not just you are connected to Internet. You can do that by trying to fetch a known address/resource from your site, like a 1x1 PNG image or 1-byte text file. Also it will answer you about your server status. :)

Answer 3

Checking internet connection normally implemented, but if you want know your server working running or no, first you need send ping or send stub request(Example: send request with any params) to your server. If have response yes then you can work perfectly with your server.