Java tutorial
/*** Copyright (c) 2012 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.hcnotify; import android.app.IntentService; import android.app.Notification; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.SystemClock; import android.provider.Settings; import android.support.v4.app.NotificationCompat; import android.widget.RemoteViews; public class SillyService extends IntentService { private static int NOTIFICATION_ID = 1337; public SillyService() { super("SillyService"); } @Override protected void onHandleIntent(Intent intent) { NotificationManager mgr = (NotificationManager) getSystemService(NOTIFICATION_SERVICE); NotificationCompat.Builder builder = new NotificationCompat.Builder(this); builder.setContent(buildContent(0)).setTicker(getText(R.string.ticker), buildTicker()) .setContentIntent(buildContentIntent()).setLargeIcon(buildLargeIcon()) .setSmallIcon(R.drawable.ic_stat_notif_small_icon).setOngoing(true); Notification notif = builder.build(); for (int i = 0; i < 20; i++) { notif.contentView.setProgressBar(android.R.id.progress, 100, i * 5, false); mgr.notify(NOTIFICATION_ID, notif); if (i == 0) { notif.tickerText = null; notif.tickerView = null; } SystemClock.sleep(1000); } mgr.cancel(NOTIFICATION_ID); } private Bitmap buildLargeIcon() { Bitmap raw = BitmapFactory.decodeResource(getResources(), R.drawable.icon); return (raw); } private RemoteViews buildTicker() { RemoteViews ticker = new RemoteViews(this.getPackageName(), R.layout.ticker); ticker.setTextViewText(R.id.ticker_text, getString(R.string.ticker)); return (ticker); } private PendingIntent buildContentIntent() { Intent i = new Intent(Settings.ACTION_SETTINGS); return (PendingIntent.getActivity(this, 0, i, 0)); } private RemoteViews buildContent(int progress) { RemoteViews content = new RemoteViews(this.getPackageName(), R.layout.content); return (content); } }