Java tutorial
/* * Copyright (C) 2013 The Android Open Source Project * * 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.getpillion.gcm; import android.app.IntentService; import android.app.Notification; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.os.Bundle; import android.support.v4.app.NotificationCompat; import android.util.Log; import com.demach.konotor.Konotor; import com.getpillion.R; import com.getpillion.RideInfoActivity; import com.getpillion.common.Constant; import com.getpillion.models.Ride; import com.getpillion.models.RideUserMapping; import com.getpillion.models.User; import com.google.android.gms.gcm.GoogleCloudMessaging; import com.google.gson.Gson; import java.util.Random; /** * This {@code IntentService} does the actual handling of the GCM message. * {@code GcmBroadcastReceiver} (a {@code WakefulBroadcastReceiver}) holds a * partial wake lock for this service while the service does its work. When the * service is finished, it calls {@code completeWakefulIntent()} to release the * wake lock. */ public class GcmIntentService extends IntentService { public static final int NOTIFICATION_ID = 1; private NotificationManager mNotificationManager; NotificationCompat.Builder builder; public GcmIntentService() { super("GcmIntentService"); } public static final String TAG = "GCM Demo"; @Override protected void onHandleIntent(Intent intent) { Bundle extras = intent.getExtras(); GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this); // The getMessageType() intent parameter must be the intent you received // in your BroadcastReceiver. String messageType = gcm.getMessageType(intent); if (!extras.isEmpty()) { // has effect of unparcelling Bundle /* * Filter messages based on message type. Since it is likely that GCM will be * extended in the future with new message types, just ignore any message types you're * not interested in, or that you don't recognize. */ if (GoogleCloudMessaging.MESSAGE_TYPE_SEND_ERROR.equals(messageType)) { //sendNotification("Send error: " + extras.toString()); } else if (GoogleCloudMessaging.MESSAGE_TYPE_DELETED.equals(messageType)) { //sendNotification("Deleted messages on server: " + extras.toString()); // If it's a regular GCM message, do some work. } else if (GoogleCloudMessaging.MESSAGE_TYPE_MESSAGE.equals(messageType)) { // This loop represents the service doing some work. /*for (int i = 0; i < 5; i++) { Log.i(TAG, "Working... " + (i + 1) + "/5 @ " + SystemClock.elapsedRealtime()); try { Thread.sleep(5000); } catch (InterruptedException e) { } } Log.i(TAG, "Completed work @ " + SystemClock.elapsedRealtime());*/ Log.d("GcmIntentService", "Got data from upstream " + extras.toString()); if (Konotor.getInstance(getApplicationContext()).isKonotorMessage(intent)) { Log.d("Konotor", "Got konotor message"); Konotor.getInstance(getApplicationContext()).handleGcmOnMessage(intent); return; } String simpleClassName = extras.getString("model_name"); String json = extras.getString("json"); Log.d("GcmIntentService", "json received for update - " + json + " for " + simpleClassName); Gson gson = new Gson(); Intent targetIntent = null; String msg = null; SharedPreferences sharedPref = getApplicationContext().getSharedPreferences(Constant.PREFS_NAME, 0); if (simpleClassName.equals("Ride")) { //check if ride timing or vehicle info got updated try { Ride updatedRide = gson.fromJson(json, Ride.class); Ride ride = Ride.find(Ride.class, "global_id = ?", String.valueOf(updatedRide.globalId)) .get(0); Ride.updateFromUpstream(updatedRide); targetIntent = new Intent(this, RideInfoActivity.class); targetIntent.putExtra("rideId", ride.getId()); msg = "Ride creator has updated the ride"; } catch (Exception e) { e.printStackTrace(); } } if (simpleClassName.equals("User")) { User.updateFromUpstream(gson.fromJson(json, User.class)); //lets not send notification for user info update } if (simpleClassName.equals("RideUserMapping")) { //this is important RideUserMapping rideUserMapping = gson.fromJson(json, RideUserMapping.class); //we need the ride Ride ride = Ride.find(Ride.class, "global_id = ?", String.valueOf(rideUserMapping.rideId)) .get(0); targetIntent = new Intent(this, RideInfoActivity.class); targetIntent.putExtra("rideId", ride.getId()); RideUserMapping myEntry = RideUserMapping .find(RideUserMapping.class, "ride_id = ? AND user_id = ?", String.valueOf(ride.getId()), String.valueOf(sharedPref.getLong("userId", 0L))) .get(0); RideUserMapping updated = RideUserMapping.updateFromUpstream(ride, rideUserMapping); //broadcast only for ride requester. The flow will not go into the subsequent if because of the user's status if (updated.userId == sharedPref.getLong("userId", 0L)) { switch (updated.status) { case Constant.ACCEPTED: //show to requester msg = "Your ride request is approved"; break; case Constant.REJECTED: //show to the requester - request rejected msg = "Sorry, your request has been rejected"; break; } } //broadcast for everyone if (myEntry.status != Constant.REQUESTED && myEntry.status != Constant.REJECTED && myEntry.status != Constant.CANCELLED) { switch (updated.status) { case Constant.REQUESTED: //show only to owner if (myEntry.isOwner) msg = "New ride request"; break; case Constant.CANCELLED: if (updated.isOwner) { msg = "Owner has cancelled the ride"; //for other active users } else { msg = "One traveller backed out"; //for owner } break; case Constant.CHECKED_IN: //show to all - {traveller} has reached his start point msg = "One traveller has reached his pickup point"; break; case Constant.STARTED: //show to all - ride has been started msg = "Ride has started."; break; } } } if (simpleClassName.equals("WorkHistory")) { //lets just leave this } Log.d("GcmIntentService", "message to the user - " + msg); if (msg != null) sendNotification(targetIntent, msg); Log.i(TAG, "Received: " + extras.toString()); } } // Release the wake lock provided by the WakefulBroadcastReceiver. GcmBroadcastReceiver.completeWakefulIntent(intent); } // Put the message into a notification and post it. // This is just one simple example of what you might choose to do with // a GCM message. private void sendNotification(Intent targetIntent, String msg) { mNotificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE); PendingIntent contentIntent = PendingIntent.getActivity(this, 0, targetIntent, 0); NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this) .setSmallIcon(R.drawable.ic_launcher_white).setContentTitle(msg) .setStyle(new NotificationCompat.BigTextStyle().bigText(msg)).setPriority(2) .setContentText(greetingMessages[new Random().nextInt(greetingMessages.length)]); mBuilder.setContentIntent(contentIntent); Notification notification = mBuilder.build(); notification.flags |= Notification.FLAG_AUTO_CANCEL; notification.defaults |= Notification.DEFAULT_ALL; //notification.defaults |= Notification.DEFAULT_VIBRATE; mNotificationManager.notify(NOTIFICATION_ID, notification); } private static String[] greetingMessages = { "Ta da", "Knock Knock", "Heya", "Hola buddy", "Yo dude", "Smells like new request", "Excuse me", "Vandu Nimisha", "Enna Rascala (kidding :-|)", "Dayavittu kshamishi", "Yatrigan kripya dhyan de" }; }