hk.edu.cityu.appslab.calmessenger.gcm.GcmIntentService.java Source code

Introduction

Here is the source code for hk.edu.cityu.appslab.calmessenger.gcm.GcmIntentService.java

Source

/*
 * 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 hk.edu.cityu.appslab.calmessenger.gcm;

import hk.edu.cityu.appslab.calmessenger.R;
import hk.edu.cityu.appslab.calmessenger.activity.ConversationActivity;
import hk.edu.cityu.appslab.calmessenger.database.DatabaseHelper;
import hk.edu.cityu.appslab.calmessenger.model.Message;

import org.json.JSONException;
import org.json.JSONObject;

import android.app.IntentService;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.NotificationCompat;
import android.support.v4.app.TaskStackBuilder;
import android.util.Log;

import com.google.android.gms.gcm.GoogleCloudMessaging;

/**
 * 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 abstract 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 = "GcmIntentService";

    @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("Error", "Send error: " + extras.toString());
            } else if (GoogleCloudMessaging.MESSAGE_TYPE_DELETED.equals(messageType)) {
                sendNotification("Deleted", "Deleted messages on server: " + extras.toString());
                // If it's a regular GCM message, do some work.
            } else if (GoogleCloudMessaging.MESSAGE_TYPE_MESSAGE.equals(messageType)) {
                Log.i(TAG, "Received: " + extras.toString());

                handleJsonMessage(extras.getString("m"));
            }
        }
        // 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.
    protected void sendNotification(String title, String msg) {
        sendNotification(title, msg, null);
    }

    protected void sendNotification(String title, String msg, Intent intent) {
        mNotificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);

        PendingIntent contentIntent;
        if (intent == null) {
            contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, ConversationActivity.class), 0);
        } else {
            contentIntent = TaskStackBuilder.create(this).addNextIntentWithParentStack(intent).getPendingIntent(0,
                    PendingIntent.FLAG_UPDATE_CURRENT);
            // contentIntent = PendingIntent.getActivity(this, 0, intent,
            // PendingIntent.FLAG_CANCEL_CURRENT);
        }

        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
                .setSmallIcon(R.drawable.ic_launcher).setContentTitle(title)
                .setStyle(new NotificationCompat.BigTextStyle().bigText(msg)).setContentText(msg)
                .setAutoCancel(true);

        mBuilder.setContentIntent(contentIntent);
        mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());
    }

    protected abstract void handleJsonMessage(String jsonString);

}