Java tutorial
/** * Copyright 2016 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 ca.justinrichard.link; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.Context; import android.content.Intent; import android.graphics.Color; import android.media.RingtoneManager; import android.net.Uri; import android.support.v4.app.NotificationCompat; import android.util.Log; import com.google.firebase.messaging.FirebaseMessagingService; import com.google.firebase.messaging.RemoteMessage; import java.util.Map; public class MyFirebaseMessagingService extends FirebaseMessagingService { private static final String TAG = "MyFirebaseMsgService"; public final static String LINK_ID = "ca.justinrichard.link.MESSAGE"; /** * Called when message is received. * * @param remoteMessage Object representing the message received from Firebase Cloud Messaging. */ // [START receive_message] @Override public void onMessageReceived(RemoteMessage remoteMessage) { // [START_EXCLUDE] // There are two types of messages data messages and notification messages. Data messages are handled // here in onMessageReceived whether the app is in the foreground or background. Data messages are the type // traditionally used with GCM. Notification messages are only received here in onMessageReceived when the app // is in the foreground. When the app is in the background an automatically generated notification is displayed. // When the user taps on the notification they are returned to the app. Messages containing both notification // and data payloads are treated as notification messages. The Firebase console always sends notification // messages. For more see: https://firebase.google.com/docs/cloud-messaging/concept-options // [END_EXCLUDE] // Not getting messages here? See why this may be: https://goo.gl/39bRNJ Log.d(TAG, "From: " + remoteMessage.getFrom()); // Check if message contains a data payload. String linkId = ""; String message = ""; if (remoteMessage.getData().size() > 0) { Log.d(TAG, "Message data payload: " + remoteMessage.getData()); linkId = remoteMessage.getData().get("linkId"); message = remoteMessage.getData().get("message"); } // Also if you intend on generating your own notifications as a result of a received FCM // message, here is where that should be initiated. See sendNotification method below. Log.i(TAG, "Creating notification for received message"); sendNotification(message, linkId); } // [END receive_message] /** * Create and show a simple notification containing the received FCM message. * * @param messageBody FCM message body received. */ private void sendNotification(String messageBody, String linkId) { Intent intent; if (linkId.equals("")) { intent = new Intent(this, MainActivity.class); intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); } else { intent = new Intent(this, LinkActivity.class); intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); intent.putExtra(LINK_ID, linkId); } PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent, PendingIntent.FLAG_ONE_SHOT); Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION); NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this) .setSmallIcon(R.drawable.ic_link).setColor(getResources().getColor(R.color.colorPrimary)) .setContentTitle("Link request").setContentText(messageBody).setAutoCancel(true) .setSound(defaultSoundUri).setContentIntent(pendingIntent); NotificationManager notificationManager = (NotificationManager) getSystemService( Context.NOTIFICATION_SERVICE); notificationManager.notify(0 /* ID of notification */, notificationBuilder.build()); } }