com.nicolacimmino.expensestracker.tracker.data_sync.GcmIntentService.java Source code

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Here is the source code for com.nicolacimmino.expensestracker.tracker.data_sync.GcmIntentService.java

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/* GcmIntentService is part of ExpensesTracker and is responsible to take actions on
 *  Google Cloud Messaging intents received.
 *
 *   Copyright (C) 2014 Nicola Cimmino
 *
 *    This program is free software: you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation, either version 3 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program.  If not, see http://www.gnu.org/licenses/.
 *
 */
package com.nicolacimmino.expensestracker.tracker.data_sync;

import android.app.IntentService;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.media.RingtoneManager;
import android.os.Bundle;
import android.support.v4.app.NotificationCompat;
import android.util.Log;

import com.google.android.gms.gcm.GoogleCloudMessaging;
import com.nicolacimmino.expensestracker.tracker.R;
import com.nicolacimmino.expensestracker.tracker.data_model.ExpensesDataContentProvider;
import com.nicolacimmino.expensestracker.tracker.ui.ExpensesListActivity;

/*
 * Intent service to process Google Cloud Messaging received intents.
 */
public class GcmIntentService extends IntentService {

    // ID of the notification informing about expenses having changed on the server.
    public static final int EXPENSES_UPDATED_NOTIFICATION_ID = 1;

    // Log tag.
    private static final String TAG = "GcmIntentService";

    // Android Notification Manager
    private NotificationManager mNotificationManager;

    // Builder class to build notifications.
    NotificationCompat.Builder builder;

    public GcmIntentService() {
        super("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()) {

            // We ignore other message types (error, deleted etc.) we just process messages.
            if (GoogleCloudMessaging.MESSAGE_TYPE_MESSAGE.equals(messageType)) {

                // We know something changed on the server, so we request a sync of the ExpensesDataPRovider
                getContentResolver().requestSync(ExpensesAccountResolver.getInstance().getAccount(),
                        ExpensesDataContentProvider.Contract.CONTENT_AUTHORITY, extras);

                // Post notification of received message.
                showExpensesUpdatedNotification();

                Log.i(TAG, "Received: " + extras.toString());
            }
        }

        // Release the wake lock provided by the WakefulBroadcastReceiver. This signals that we are
        // done and the device doesn't need to be kept awake anymore.
        GcmBroadcastReceiver.completeWakefulIntent(intent);
    }

    // Show a notification informing that expenses on the server have changed.
    // Note: this is not a really useful feature if this was a real product. The notification
    //  is here mainly for testing and to experiment with notifications.
    private void showExpensesUpdatedNotification() {
        mNotificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);

        PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
                new Intent(this, ExpensesListActivity.class), 0);

        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
                .setSmallIcon(R.drawable.ic_notification)
                .setContentTitle(getResources().getString(R.string.app_name))
                .setStyle(new NotificationCompat.BigTextStyle()
                        .bigText(getResources().getString(R.string.notification_data_changed)))
                .setContentText(getResources().getString(R.string.notification_data_changed)).setAutoCancel(true)
                .setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
                .setLights(Color.rgb(219, 70, 0), 700, 1000).setOnlyAlertOnce(true);

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