Java tutorial
/** * Copyright 2015 Google Inc. All Rights Reserved. * <p/> * 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 * <p/> * http://www.apache.org/licenses/LICENSE-2.0 * <p/> * 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 gcm.play.android.samples.com.gcmquickstart; import android.app.IntentService; import android.content.Intent; import android.content.SharedPreferences; import android.preference.PreferenceManager; import android.support.v4.content.LocalBroadcastManager; import android.util.Log; import com.google.android.gms.gcm.GcmPubSub; import com.google.android.gms.gcm.GoogleCloudMessaging; import com.google.android.gms.iid.InstanceID; import com.turbomanage.httpclient.BasicHttpClient; import com.turbomanage.httpclient.HttpResponse; import com.turbomanage.httpclient.ParameterMap; import org.json.JSONObject; import java.io.IOException; public class RegistrationIntentService extends IntentService { private static final String TAG = "RegIntentService"; private static final String[] TOPICS = { "global" }; private static final String SERVER_URL = "http://192.168.43.37:3000/api/users/regist"; private static final String CLIENT_SECRET = "5A1xWB6W-uwJw42iiHDODfdfb4Ere01Tm3auJkXXDaLfbCsCfgnWaKiJErFExOOU8Jh0x33cpPe"; private static final String KEY_CLIENT_ID = "client_id"; public RegistrationIntentService() { super(TAG); } @Override protected void onHandleIntent(Intent intent) { final SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this); try { InstanceID instanceID = InstanceID.getInstance(this); String token = instanceID.getToken(getString(R.string.gcm_defaultSenderId), GoogleCloudMessaging.INSTANCE_ID_SCOPE, null); Log.i(TAG, "GCM Registration Token: " + token); // TODO: Implement this method to send any registration to your app's servers. sendRegistrationToServer(token); final String clientId = sharedPreferences.getString(KEY_CLIENT_ID, null); BasicHttpClient httpClient = new BasicHttpClient(SERVER_URL); ParameterMap params = httpClient.newParams().add("clientSecret", CLIENT_SECRET).add("token", token); if (clientId != null) { params.add("id", clientId); } httpClient.setConnectionTimeout(2000); HttpResponse httpResponse = httpClient.post("/", params); if (httpResponse != null && httpResponse.getStatus() == 200) { JSONObject json = new JSONObject(httpResponse.getBodyAsString()); String id = json.getString("id"); Log.d(TAG, id); sharedPreferences.edit().putString(KEY_CLIENT_ID, id).apply(); sharedPreferences.edit().putBoolean(QuickstartPreferences.SENT_TOKEN_TO_SERVER, true).apply(); subscribeTopics(token); } // Subscribe to topic channels // You should store a boolean that indicates whether the generated token has been // sent to your server. If the boolean is false, send the token to your server, // otherwise your server should have already received the token. // [END register_for_gcm] } catch (Exception e) { Log.d(TAG, "Failed to complete token refresh", e); // If an exception happens while fetching the new token or updating our registration data // on a third-party server, this ensures that we'll attempt the update at a later time. sharedPreferences.edit().putBoolean(QuickstartPreferences.SENT_TOKEN_TO_SERVER, false).apply(); } // Notify UI that registration has completed, so the progress indicator can be hidden. Intent registrationComplete = new Intent(QuickstartPreferences.REGISTRATION_COMPLETE); LocalBroadcastManager.getInstance(this).sendBroadcast(registrationComplete); } /** * Persist registration to third-party servers. * <p/> * Modify this method to associate the user's GCM registration token with any server-side account * maintained by your application. * * @param token The new token. */ private void sendRegistrationToServer(String token) { // Add custom implementation, as needed. } /** * 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] }