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 com.begentgroup.miniproject.gcm; import android.app.IntentService; import android.content.Intent; import android.support.v4.content.LocalBroadcastManager; import android.util.Log; import com.begentgroup.miniproject.R; import com.begentgroup.miniproject.manager.PropertyManager; import com.google.android.gms.gcm.GcmPubSub; import com.google.android.gms.gcm.GoogleCloudMessaging; import com.google.android.gms.iid.InstanceID; import java.io.IOException; public class RegistrationIntentService extends IntentService { private static final String TAG = "RegIntentService"; private static final String[] TOPICS = { "global" }; public static final String REGISTRATION_COMPLETE = "registrationComplete"; public RegistrationIntentService() { super(TAG); } @Override protected void onHandleIntent(Intent intent) { try { InstanceID instanceID = InstanceID.getInstance(this); String token = instanceID.getToken(getString(R.string.gcm_defaultSenderId), GoogleCloudMessaging.INSTANCE_ID_SCOPE, null); PropertyManager.getInstance().setRegistrationId(token); // Subscribe to topic channels subscribeTopics(token); } catch (Exception e) { Log.d(TAG, "Failed to complete token refresh", e); } // Notify UI that registration has completed, so the progress indicator can be hidden. Intent registrationComplete = new Intent(REGISTRATION_COMPLETE); LocalBroadcastManager.getInstance(this).sendBroadcast(registrationComplete); } /** * Subscribe to any GCM topics of interest, as defined by the TOPICS constant. * * @param token GCM token * @throws IOException if unable to reach the GCM PubSub service */ // [START subscribe_topics] private void subscribeTopics(String token) throws IOException { GcmPubSub pubSub = GcmPubSub.getInstance(this); for (String topic : TOPICS) { pubSub.subscribe(token, "/topics/" + topic, null); } } // [END subscribe_topics] }