Android: Checking if Internet is available

The following method is very useful in android when you have to check if the internet is available on the device.

public boolean isNetworkAvailable(Context c) {

ConnectivityManager cm = (ConnectivityManager)c.getSystemService(Context.CONNECTIVITY_SERVICE);

return cm.getActiveNetworkInfo() != null

&& cm.getActiveNetworkInfo().isConnectedOrConnecting();

}