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 co.org.cut.cut_app.gcm; 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.android.volley.Request; import com.android.volley.RequestQueue; import com.android.volley.Response; import com.android.volley.VolleyError; import com.android.volley.toolbox.StringRequest; import com.google.android.gms.gcm.GcmPubSub; import com.google.android.gms.gcm.GoogleCloudMessaging; import com.google.android.gms.iid.InstanceID; import org.json.JSONException; import org.json.JSONObject; import java.io.IOException; import java.util.HashMap; import java.util.Map; import co.org.cut.cut_app.R; import co.org.cut.cut_app.herramientas.App_cut; import co.org.cut.cut_app.herramientas.MyVolley; public class RegistrationIntentService extends IntentService { private static final String TAG = "RegIntentService"; private static final String[] TOPICS = { "global" }; private static final String URL_REGISTRO = "http://52.27.16.14/cut/usuarios/registrar"; private static final String PLATAFORMA = "android"; private static final String ARG_PLATAFORMA = "plataforma"; private static final String ARG_TOKEN = "push_id"; private static final String STR_ESTADO = "status"; private static final String STR_ESTADO_OK = "OK"; public RegistrationIntentService() { super(TAG); } @Override protected void onHandleIntent(Intent intent) { SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this); try { // [START register_for_gcm] // Initially this call goes out to the network to retrieve the token, subsequent calls // are local. // R.string.gcm_defaultSenderId (the Sender ID) is typically derived from google-services.json. // See https://developers.google.com/cloud-messaging/android/start for details on this file. // [START get_token] InstanceID instanceID = InstanceID.getInstance(this); String token = instanceID.getToken(getString(R.string.gcm_defaultSenderId), GoogleCloudMessaging.INSTANCE_ID_SCOPE, null); // [END get_token] Log.i(TAG, "GCM Registration Token: " + token); sendRegistrationToServer(token, sharedPreferences); // Subscribe to topic channels subscribeTopics(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. * * 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(final String token, SharedPreferences sharedPreferences) { final Boolean enviado = sharedPreferences.getBoolean(QuickstartPreferences.SENT_TOKEN_TO_SERVER, false); if (!enviado) { RequestQueue queue = MyVolley.getRequestQueue(); StringRequest myReq = new StringRequest(Request.Method.POST, URL_REGISTRO, successRegistro(sharedPreferences), errorConexion()) { protected Map<String, String> getParams() throws com.android.volley.AuthFailureError { Map<String, String> params = new HashMap<>(); params.put(ARG_PLATAFORMA, PLATAFORMA); params.put(ARG_TOKEN, token); return params; } }; queue.add(myReq); } } private Response.Listener<String> successRegistro(final SharedPreferences sharedPreferences) { return new Response.Listener<String>() { @Override public void onResponse(String response) { try { JSONObject jsonObj = new JSONObject(response); Log.d(App_cut.getTag(), jsonObj.toString()); if (jsonObj.get(STR_ESTADO).equals(STR_ESTADO_OK)) { // 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. sharedPreferences.edit().putBoolean(QuickstartPreferences.SENT_TOKEN_TO_SERVER, true) .apply(); } } catch (JSONException e) { Log.e(App_cut.getTag(), e.getMessage()); } } }; } //Se reciben los errores que puedan ocurrir por parte del servidor private Response.ErrorListener errorConexion() { return new Response.ErrorListener() { @Override public void onErrorResponse(VolleyError error) { //Se estalla por un error 404 o 500 en el servicio Log.e(App_cut.getTag(), error.toString()); } }; } /** * 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] }