Java tutorial
/* * Copyright (C) 2014 Gary O'Neall * * Based on code from Google Cloud Messaging for Android: * * Copyright (C) 2013 The Android Open Source Project * * 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. */ package com.sourceauditor.sahomemonitor; import com.google.android.gms.gcm.GoogleCloudMessaging; import android.app.IntentService; import android.app.Notification; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.Context; import android.content.Intent; import android.media.RingtoneManager; import android.net.Uri; import android.os.Bundle; import android.support.v4.app.NotificationCompat; import android.util.Log; /** * This {@code IntentService} does the actual handling of the GCM message. * {@code GcmBroadcastReceiver} (a {@code WakefulBroadcastReceiver}) holds a * partial wake lock for this service while the service does its work. When the * service is finished, it calls {@code completeWakefulIntent()} to release the * wake lock. */ public class GcmIntentService extends IntentService { public static final int NOTIFICATION_ID = 1; private static final boolean USE_NOTIFICATION = true; private NotificationManager mNotificationManager; NotificationCompat.Builder builder; public GcmIntentService() { super("GcmIntentService"); } public static final String TAG = "SA Home Monitor GCM"; @Override protected void onHandleIntent(Intent intent) { try { Bundle extras = intent.getExtras(); GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this); // The getMessageType() intent parameter must be the intent you received // in your BroadcastReceiver. String messageType = gcm.getMessageType(intent); if (!extras.isEmpty()) { // has effect of unparcelling Bundle /* * Filter messages based on message type. Since it is likely that GCM will be * extended in the future with new message types, just ignore any message types you're * not interested in, or that you don't recognize. */ if (GoogleCloudMessaging.MESSAGE_TYPE_SEND_ERROR.equals(messageType)) { sendNotification("Send error: " + extras.toString(), extras); } else if (GoogleCloudMessaging.MESSAGE_TYPE_DELETED.equals(messageType)) { sendNotification("Deleted messages on server: " + extras.toString(), extras); // If it's a regular GCM message, do some work. } else if (GoogleCloudMessaging.MESSAGE_TYPE_MESSAGE.equals(messageType)) { // Post notification of received message. if (USE_NOTIFICATION) { String msg = extras.getString(MainActivity.EXTRA_MESSAGE_FROM_HOME); if (msg == null || msg.trim().isEmpty()) { msg = "Home Alert (no message)"; } sendNotification(msg, extras); } else { sendToMainActivity(extras); } Log.i(TAG, "Received: " + extras.toString()); } } } finally { // Release the wake lock provided by the WakefulBroadcastReceiver. GcmBroadcastReceiver.completeWakefulIntent(intent); } } Intent buildIntentForMainActifity(Bundle extras) { Intent retval = new Intent(this, MainActivity.class); retval.setAction(MainActivity.ACTION_HOME_NOFICATION); retval.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); if (extras != null) { String homeMonitorUrl = extras.getString(MainActivity.EXTRA_HOME_MONITOR_URL); if (homeMonitorUrl != null) { homeMonitorUrl = homeMonitorUrl.trim(); if (!homeMonitorUrl.isEmpty()) { retval.putExtra(MainActivity.EXTRA_HOME_MONITOR_URL, homeMonitorUrl); } } String homeMonitorAudioUrl = extras.getString(MainActivity.EXTRA_HOME_MONITOR_AUDIO_URL); if (homeMonitorAudioUrl != null) { homeMonitorAudioUrl = homeMonitorAudioUrl.trim(); if (!homeMonitorAudioUrl.isEmpty()) { retval.putExtra(MainActivity.EXTRA_HOME_MONITOR_AUDIO_URL, homeMonitorAudioUrl); } } String msg = extras.getString(MainActivity.EXTRA_MESSAGE_FROM_HOME); if (msg != null) { msg = msg.trim(); if (!msg.isEmpty()) { retval.putExtra(MainActivity.EXTRA_MESSAGE_FROM_HOME, msg); } } } return retval; } /** * Send the GCM message information to the MainActivity for display * @param extras */ private void sendToMainActivity(Bundle extras) { startActivity(buildIntentForMainActifity(extras)); } // Put the message into a notification and post it. private void sendNotification(String msg, Bundle extras) { mNotificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE); Intent notifyMainIntent = buildIntentForMainActifity(extras); // Figure out how to add extras for the URL and message PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notifyMainIntent, PendingIntent.FLAG_UPDATE_CURRENT); NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this) .setSmallIcon(R.drawable.home_small).setContentTitle("Home Monitor Notification") .setStyle(new NotificationCompat.BigTextStyle().bigText(msg)).setExtras(extras).setContentText(msg); mBuilder.setContentIntent(contentIntent); mBuilder.setPriority(Notification.PRIORITY_MAX); mBuilder.setLights(0xFF0000, 500, 500); long[] pattern = new long[] { 0, 500, 0, 500, 0, 500, 0, 500, 0, 500 }; mBuilder.setVibrate(pattern); Uri soundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION); mBuilder.setSound(soundUri); mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build()); } }