Java tutorial
/** * Copyright 2015 Google Inc. All Rights Reserved. * * 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 capstone.se491_phm.gcm; /** * https://developers.google.com/cloud-messaging/android/client */ import android.app.PendingIntent; import android.app.TaskStackBuilder; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.media.RingtoneManager; import android.net.Uri; import android.os.Bundle; import android.preference.PreferenceManager; import android.support.v4.app.NotificationCompat; import android.util.Log; import com.google.android.gms.gcm.GcmListenerService; import capstone.se491_phm.R; import capstone.se491_phm.MainActivity; import capstone.se491_phm.common.Constants; import capstone.se491_phm.sensors.ExternalSensorActivity; import static capstone.se491_phm.MainActivity.sharedPreferences; public class PhmGcmListenerService extends GcmListenerService { private static final String TAG = "MyGcmListenerService"; public static int notificationId = 3; /** * Called when message is received. * * @param from SenderID of the sender. * @param data Data bundle containing message data as key/value pairs. * For Set of keys use data.keySet(). */ // [START receive_message] @Override public void onMessageReceived(String from, Bundle data) { String message = data.getString("message"); Log.d(TAG, "From: " + from); Log.d(TAG, "Message: " + message); if (from.startsWith("/topics/")) { // message received from some topic. } else { // normal downstream message. } // [START_EXCLUDE] /** * Production applications would usually process the message here. * Eg: - Syncing with server. * - Store message in local database. * - Update UI. */ /** * In some cases it may be useful to show a notification indicating to the user * that a message was received. */ sendNotification(message); // [END_EXCLUDE] } // [END receive_message] /** * Create and show a simple notification containing the received GCM message. * * @param message GCM message received. */ private void sendNotification(String message) { Context context = getBaseContext(); Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION); SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context); SharedPreferences.Editor editor = sharedPreferences.edit(); editor.putString(Constants.SERVER_IP, message); editor.commit(); NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context) .setSmallIcon(R.drawable.notification).setContentTitle("External Sensor Request") .setContentText("A connection request has been made from this ip: " + message + ". Click to allow connection") .setSound(defaultSoundUri); // Creates an explicit intent for an Activity in your app Intent resultIntent = new Intent(context, ExternalSensorActivity.class); // The stack builder object will contain an artificial back stack for the // started Activity. // This ensures that navigating backward from the Activity leads out of // your application to the Home screen. TaskStackBuilder stackBuilder = TaskStackBuilder.create(context); // Adds the back stack for the Intent (but not the Intent itself) stackBuilder.addParentStack(ExternalSensorActivity.class); // Adds the Intent that starts the Activity to the top of the stack stackBuilder.addNextIntent(resultIntent); PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT); mBuilder.setContentIntent(resultPendingIntent); // mId allows you to update the notification later on. MainActivity.mNotificationManager.notify(notificationId, mBuilder.build()); } }