Java tutorial
/*** Copyright (c) 2013 CommonsWare, LLC Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0. Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. From _The Busy Coder's Guide to Android Development_ http://commonsware.com/Android */ package com.commonsware.android.eventbus.greenrobot; import android.app.Notification; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.Intent; import android.support.v4.app.NotificationCompat; import java.util.Random; import com.commonsware.cwac.wakeful.WakefulIntentService; import de.greenrobot.event.EventBus; public class ScheduledService extends WakefulIntentService { private static int NOTIFY_ID = 1337; private Random rng = new Random(); public ScheduledService() { super("ScheduledService"); } @Override public void onCreate() { super.onCreate(); EventBus.getDefault().register(this, 0); } @Override protected void doWakefulWork(Intent intent) { EventBus.getDefault().post(new RandomEvent(rng.nextInt())); } @Override public void onDestroy() { EventBus.getDefault().unregister(this); super.onDestroy(); } public void onEvent(RandomEvent event) { NotificationCompat.Builder b = new NotificationCompat.Builder(this); Intent ui = new Intent(this, EventDemoActivity.class); b.setAutoCancel(true).setDefaults(Notification.DEFAULT_SOUND) .setContentTitle(getString(R.string.notif_title)).setContentText(Integer.toHexString(event.value)) .setSmallIcon(android.R.drawable.stat_notify_more).setTicker(getString(R.string.notif_title)) .setContentIntent(PendingIntent.getActivity(this, 0, ui, 0)); NotificationManager mgr = (NotificationManager) getSystemService(NOTIFICATION_SERVICE); mgr.notify(NOTIFY_ID, b.build()); } }