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.solidparts.gifts.gcm; import android.app.IntentService; import android.content.ActivityNotFoundException; import android.content.Intent; import android.content.SharedPreferences; import android.os.AsyncTask; import android.preference.PreferenceManager; import android.support.v4.content.LocalBroadcastManager; import android.util.Log; import android.view.View; import com.google.android.gms.gcm.GcmPubSub; import com.google.android.gms.gcm.GoogleCloudMessaging; import com.google.android.gms.iid.InstanceID; import com.solidparts.gifts.MessageManager; import com.solidparts.gifts.R; import com.solidparts.gifts.dto.UserDTO; import com.solidparts.gifts.service.UserService; import java.io.IOException; public class RegistrationIntentService extends IntentService { private static final String TAG = "RegIntentService"; private static final String[] TOPICS = { "global" }; private UserDTO userDTO = null; private UserService userService; private MessageManager messageManager; public RegistrationIntentService() { super(TAG); } @Override protected void onHandleIntent(Intent intent) { SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this); userDTO = (UserDTO) intent.getSerializableExtra("userDTO"); userService = new UserService(this); messageManager = new MessageManager(); 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); // TODO: Implement this method to send any registration to your app's servers. if (userDTO.getGcm_regid() == null || userDTO.getGcm_regid().equals("")) { sendRegistrationToServer(token); } // Subscribe to topic channels subscribeTopics(token); // 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(); // [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(String token) { String tokenToStore = token; userDTO.setGcm_regid(token); try { UpdateUserTask updateUserTask = new UpdateUserTask(); UserDTO[] users = new UserDTO[1]; users[0] = userDTO; updateUserTask.execute(users); } catch (ActivityNotFoundException anfe) { //on catch, show the download dialog //showDialog(SearchActivity.this, "No Scanner Found", "Download a scanner code activity?", "Yes", "No").show(); } // 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] private class UpdateUserTask extends AsyncTask<UserDTO, Integer, Boolean> { @Override protected Boolean doInBackground(UserDTO... userDTO) { try { userService.updateUser(userDTO[0]); return true; } catch (Exception e) { e.printStackTrace(); } return true; } @Override protected void onPostExecute(Boolean success) { //findViewById(R.id.progressBar).setVisibility(View.GONE); //enableButtons(); if (success) { messageManager.show(getApplicationContext(), "User Token Saved!", false); } else messageManager.show(getApplicationContext(), "User Token not saved!", false); //startActivity(new Intent(AddItemActivity.this, MainActivity.class)); } @Override protected void onPreExecute() { //findViewById(R.id.progressBar).setVisibility(View.VISIBLE); //disableButtons(); } } }