Java tutorial
/*** Copyright (c) 2014 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. Covered in detail in the book _The Busy Coder's Guide to Android Development_ https://commonsware.com/Android */ package com.commonsware.android.lollipopnotify; import android.app.Notification; import android.app.PendingIntent; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.provider.Settings; import android.support.v4.app.NotificationCompat; import android.support.v4.app.NotificationManagerCompat; public class AlarmReceiver extends BroadcastReceiver { private static final int NOTIFY_ID = 1337; static final String EXTRA_TYPE = "type"; @Override public void onReceive(Context ctxt, Intent i) { NotificationManagerCompat mgr = NotificationManagerCompat.from(ctxt); switch (i.getIntExtra(EXTRA_TYPE, -1)) { case 0: notifyPrivate(ctxt, mgr); break; case 1: notifyPublic(ctxt, mgr); break; case 2: notifySecret(ctxt, mgr); break; case 3: notifyHeadsUp(ctxt, mgr); break; } } private void notifyPrivate(Context ctxt, NotificationManagerCompat mgr) { Notification pub = buildBase(ctxt, R.string.public_title).build(); mgr.notify(NOTIFY_ID, buildBase(ctxt, R.string.private_title).setPublicVersion(pub).build()); } private void notifyPublic(Context ctxt, NotificationManagerCompat mgr) { mgr.notify(NOTIFY_ID, buildBase(ctxt, R.string.public_title).setVisibility(NotificationCompat.VISIBILITY_PUBLIC).build()); } private void notifySecret(Context ctxt, NotificationManagerCompat mgr) { mgr.notify(NOTIFY_ID, buildBase(ctxt, R.string.secret_title).setVisibility(NotificationCompat.VISIBILITY_SECRET).build()); } private void notifyHeadsUp(Context ctxt, NotificationManagerCompat mgr) { mgr.notify(NOTIFY_ID, buildBase(ctxt, R.string.headsup_title).setPriority(NotificationCompat.PRIORITY_HIGH).build()); } private NotificationCompat.Builder buildBase(Context ctxt, int titleId) { NotificationCompat.Builder b = new NotificationCompat.Builder(ctxt); b.setAutoCancel(true).setDefaults(Notification.DEFAULT_ALL).setContentTitle(ctxt.getString(titleId)) .setContentIntent(buildPendingIntent(ctxt, Settings.ACTION_SECURITY_SETTINGS)) .setSmallIcon(android.R.drawable.stat_sys_download_done).addAction(android.R.drawable.ic_media_play, ctxt.getString(R.string.play), buildPendingIntent(ctxt, Settings.ACTION_SETTINGS)); return (b); } private PendingIntent buildPendingIntent(Context ctxt, String action) { Intent i = new Intent(action); return (PendingIntent.getActivity(ctxt, 0, i, 0)); } }