broadcast - How to make my service run? -

i want start service when power connected device , show notification app doing nothing or not happenig, please me, new in android world, maybe miss something, mi code following:

my manifest:

<receiver android:name="com.tlm.grhs_client.wifimonitor">      <intent-filter>          <action android:name="android.intent.action.action_power_connected"/>      </intent-filter>  </receiver>

my broadcast reciever:

public class wifimonitor extends broadcastreceiver {      @override      public void onreceive(context context, intent intent) {                 connectivitymanager cm = (connectivitymanager) context.getsystemservice(context.connectivity_service);         networkinfo info = cm.getactivenetworkinfo();         if (info != null && info.gettype() == connectivitymanager.type_wifi) {             if (info.isconnected()) {                 //iniciar servicio                 intent serviceintent = new intent(context, clientservice.class);                 context.startservice(serviceintent);             }             else {                 //parar servicio          	   intent serviceintent = new intent(context, clientservice.class);                 context.stopservice(serviceintent);             }         }      }  }

and service class this:

public class clientservice extends service {    	@override  	public ibinder onbind(intent intent) {  		throw new unsupportedoperationexception("not yet implemented");  	}    	@override  	public void oncreate() {  		toast.maketext(this, "servicio fue creado", toast.length_long).show();  	}    	@targetapi(build.version_codes.jelly_bean)  	@suppresslint("newapi")  	@override  	public void onstart(intent intent, int startid) {  		// perform long running operations here.  		toast.maketext(this, "servicio iniciado", toast.length_long).show();  		  		notification.builder notibuilder = new notification.builder(this);  		notibuilder.setcontenttitle("prueba");  		notibuilder.setcontenttext("esto es una prueba");  		notification notificacion = notibuilder.build();  		  		notificationmanager manager = (notificationmanager) this.getsystemservice(this.notification_service);  		manager.notify(1, notificacion);  	}    	@override  	public void ondestroy() {  		toast.maketext(this, "servicio destruido", toast.length_long).show();  	}    }

i turn on wifi , establish connection notification doesn't shows.

android notifications in manner require small icon, along title , text per documentation @ http://developer.android.com/guide/topics/ui/notifiers/notifications.html

add icon otherwise code (on quick glance) looks should work.