Intent action for network events in android sdk

Here's a working example:

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /><receiver android:name=".receiver.ConnectivityReceiver">    <intent-filter>        <action android:name="android.net.conn.CONNECTIVITY_CHANGE" />    </intent-filter></receiver>

.

public class ConnectivityReceiver extends BroadcastReceiver {    @Override    public void onReceive(Context context, Intent intent) {        Log.d(ConnectivityReceiver.class.getSimpleName(), "action: "                + intent.getAction());    }}

yanchenko's answer is very much useful, i am just simplifying a little bit to get connection status, please modify onReceive as below :

public class ConnectivityReceiver extends BroadcastReceiver {    @Override    public void onReceive(Context context, Intent intent) {        Log.d(ConnectivityReceiver.class.getSimpleName(), "action: "                + intent.getAction());        MyConstants.IS_NETWORK_AVAILABLE = haveNetworkConnection(context);        //IS_NETWORK_AVAILABLE this variable in your activities to check networkavailability.    }     private boolean haveNetworkConnection(Context context) {        boolean haveConnectedWifi = false;        boolean haveConnectedMobile = false;        ConnectivityManager cm = (ConnectivityManager)   context.getSystemService(Context.CONNECTIVITY_SERVICE);        NetworkInfo[] netInfo = cm.getAllNetworkInfo();        for (NetworkInfo ni : netInfo) {            if (ni.getTypeName().equalsIgnoreCase("WIFI"))                if (ni.isConnected())                    haveConnectedWifi = true;            if (ni.getTypeName().equalsIgnoreCase("MOBILE"))                if (ni.isConnected())                    haveConnectedMobile = true;        }        return haveConnectedWifi || haveConnectedMobile;        }}