Android Service to help you out with manage connections. Need ACCESS_NETWORK_STATE permission, add this to your Manifest <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" > </uses-permission> Use your package and enjoy it!

ConnectionService.java

package com.use.your.package.here;

import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;

/**
 * @author Gabriele Porcelli
 * 
 *         Extends this Service and implement connected() && disconnected().
 *         Out of the box!
 */
public abstract class ConnectionService extends Service {

    private BroadcastReceiver ConnectionReceiver = new BroadcastReceiver() {
		public void onReceive(Context context, Intent intent) {

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

			NetworkInfo activeNetwork = cm.getActiveNetworkInfo();// may return
																	// null
			if (activeNetwork != null) {
				boolean isConnected = activeNetwork.isConnected();
				if (isConnected) {
					connected(activeNetwork.getType());
				} else {
					disconnected();
				}
			} else {
				disconnected();
			}

		};
	};

	public void onDestroy() {
		unregisterReceiver(ConnectionReceiver);
		super.onDestroy();
	};

	@Override
	public void onCreate() {
		registerReceiver(ConnectionReceiver, new IntentFilter(
				ConnectivityManager.CONNECTIVITY_ACTION"));
		super.onCreate();
	}

	
	/**
	 * Handle android network connected
	 * 
	 * @param Connection
	 *            type Hint runInUIThread
	 * 
	 *            example
	 * 
	 *            switch (type) { case ConnectivityManager.TYPE_MOBILE:
	 *            Log.i(ServiceConnection.class.getSimpleName(),
	 *            "Connection type: Mobile"); break; case
	 *            ConnectivityManager.TYPE_WIFI:
	 *            Log.i(ServiceConnection.class.getSimpleName(),
	 *            "Connection type: Wifi"); break; // API 13 case
	 *            ConnectivityManager.TYPE_ETHERNET:
	 *            Log.i(ServiceConnection.class.getSimpleName(),
	 *            "Connection type: Ethernet"); break; // API 8 case
	 *            ConnectivityManager.TYPE_WIMAX:
	 *            Log.i(ServiceConnection.class.getSimpleName(),
	 *            "Connection type: WiMax"); break; default: throw new
	 *            IllegalStateException(
	 *            "Connectivity type not supported! ConnectivityManager value:"
	 *            + type); }
	 */
	protected abstract void connected(int type);

	/**
	 * Handle Android network disconnected Hint runInUIThread
	 */
	protected abstract void disconnected();

}