Java tutorial
package com.pubkit.gcm; /* * 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. */ import android.app.IntentService; import android.app.NotificationManager; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.support.v4.app.NotificationCompat; import android.util.Log; import com.google.android.gms.gcm.GoogleCloudMessaging; /** * 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 PubKitGcmIntentService extends IntentService { public static int NOTIFICATION_ID = 1; public static final String TAG = "GCM Demo"; public PubKitGcmIntentService() { super("GcmIntentService"); } @Override protected void onHandleIntent(Intent intent) { 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()) { String message = extras.toString(); if (GoogleCloudMessaging.MESSAGE_TYPE_SEND_ERROR.equals(messageType)) { Log.i(TAG, "Received GCM message type 'error'"); } else if (GoogleCloudMessaging.MESSAGE_TYPE_DELETED.equals(messageType)) { Log.i(TAG, "Received GCM message type 'deleted'"); } else if (GoogleCloudMessaging.MESSAGE_TYPE_MESSAGE.equals(messageType)) { Log.i(TAG, "Received GCM message"); } sendNotification(extras.toString(), messageType); } // Release the wake lock provided by the WakefulBroadcastReceiver. PubKitGcmBroadcastReceiver.completeWakefulIntent(intent); } // Put the message into a notification and post it. // This is just one simple example of what you might choose to do with // a GCM message. private void sendNotification(String message, String messageType) { NotificationManager notificationManager = (NotificationManager) this .getSystemService(Context.NOTIFICATION_SERVICE); NotificationCompat.Builder builder = new NotificationCompat.Builder(this) .setContentTitle("New Notification") .setStyle(new NotificationCompat.BigTextStyle().bigText(message)).setContentText(message); notificationManager.notify(NOTIFICATION_ID, builder.build()); NOTIFICATION_ID++; } }