com.baochu.androidassignment.notification.GcmIntentService.java Source code

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Here is the source code for com.baochu.androidassignment.notification.GcmIntentService.java

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/*
 * 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.baochu.androidassignment.notification;

import com.baochu.assignment.R;
import com.baochu.androidassignment.Utils;
import com.baochu.androidassignment.login.MainActivity;
import com.google.android.gms.gcm.GoogleCloudMessaging;

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.os.Bundle;
import android.support.v4.app.NotificationCompat;
import android.util.Log;

/**
 * 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 {

    private static final String TAG = "GcmIntentService";
    private static final String MESSAGE_ID_EXTRA = "google.message_id";
    String mMessageType = null;
    private NotificationManager mNotificationManager;

    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.
        mMessageType = 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(mMessageType)) {
                sendNotification("Send error: " + extras.toString());
            } else if (GoogleCloudMessaging.MESSAGE_TYPE_DELETED.equals(mMessageType)) {
                sendNotification("Deleted messages on server: " + extras.toString());
            } else {//if (GoogleCloudMessaging.MESSAGE_TYPE_MESSAGE.equals(messageType)) {
                //####################################################################
                // There is a bug that: The received messageType="send_event", which 
                // doesn't equal to GoogleCloudMessaging.MESSAGE_TYPE_MESSAGE="gcm".
                //####################################################################

                // Post notification of received message.
                String message = extras.getString("message");
                if (message == null || message.length() == 0) {
                    message = "Receive null GCM message !";
                }
                sendNotification(message);

                Log.i(TAG, "Received: " + extras.toString());
            }
        }
        // Release the wake lock provided by the WakefulBroadcastReceiver.
        GcmBroadcastReceiver.completeWakefulIntent(intent);
    }

    /** Issues a notification to inform the user */
    private void sendNotification(String msg) {
        int msgId = Utils.getMessageId();
        mNotificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
        Intent intent = new Intent(this, MainActivity.class);
        // set intent so it does not start a new activity
        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
        intent.putExtra(GcmActivity.EXTRA_MESSAGE, msg);
        PendingIntent contentIntent = PendingIntent.getActivity(this, msgId, intent, 0);

        NotificationCompat.Builder builder = new NotificationCompat.Builder(this)
                .setSmallIcon(R.drawable.ic_stat_gcm).setContentTitle(this.getString(R.string.app_name))
                .setStyle(new NotificationCompat.BigTextStyle().bigText(msg)).setContentText(msg)
                .setDefaults(Notification.DEFAULT_SOUND).setAutoCancel(true);

        builder.setContentIntent(contentIntent);
        mNotificationManager.notify(msgId, builder.build());
    }

}