Android Open Source - Android-Google-Cloud-Messaging G C M Intent Service

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License

The source code is released under:

MIT License

Java Source Code

package mx.androidtitlan.gcmdemo;
//from   w  w  w  .  java 2s  .  co  m
import static mx.androidtitlan.gcmdemo.CommonUtilities.SENDER_ID;
import static mx.androidtitlan.gcmdemo.CommonUtilities.displayMessage;

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.util.Log;

import com.google.android.gcm.GCMBaseIntentService;
import com.google.android.gcm.GCMRegistrar;

/**
 * IntentService responsible for handling GCM messages.
 */
public class GCMIntentService extends GCMBaseIntentService {

  @SuppressWarnings("hiding")
  private static final String TAG = "GCMIntentService";

  public GCMIntentService() {
    super(SENDER_ID);
  }

  @Override
  protected void onRegistered(Context context, String registrationId) {
    Log.i(TAG, "Device registered: regId = " + registrationId);
    displayMessage(context, getString(R.string.gcm_registered));
    ServerUtilities.register(context, registrationId);
  }

  @Override
  protected void onUnregistered(Context context, String registrationId) {
    Log.i(TAG, "Device unregistered");
    displayMessage(context, getString(R.string.gcm_unregistered));
    if (GCMRegistrar.isRegisteredOnServer(context)) {
      ServerUtilities.unregister(context, registrationId);
    } else {
      // This callback results from the call to unregister made on
      // ServerUtilities when the registration to the server failed.
      Log.i(TAG, "Ignoring unregister callback");
    }
  }

  @Override
  protected void onMessage(Context context, Intent intent) {
    Log.i(TAG, "Received message");
    String message = getString(R.string.gcm_message);
    displayMessage(context, message);
    // notifies user
    generateNotification(context, message);
  }

  @Override
  protected void onDeletedMessages(Context context, int total) {
    Log.i(TAG, "Received deleted messages notification");
    String message = getString(R.string.gcm_deleted, total);
    displayMessage(context, message);
    // notifies user
    generateNotification(context, message);
  }

  @Override
  public void onError(Context context, String errorId) {
    Log.i(TAG, "Received error: " + errorId);
    displayMessage(context, getString(R.string.gcm_error, errorId));
  }

  @Override
  protected boolean onRecoverableError(Context context, String errorId) {
    // log message
    Log.i(TAG, "Received recoverable error: " + errorId);
    displayMessage(context,
        getString(R.string.gcm_recoverable_error, errorId));
    return super.onRecoverableError(context, errorId);
  }

  /**
   * Issues a notification to inform the user that server has sent a message.
   */
  private static void generateNotification(Context context, String message) {
    int icon = R.drawable.ic_stat_gcm;
    long when = System.currentTimeMillis();
    NotificationManager notificationManager = (NotificationManager) context
        .getSystemService(Context.NOTIFICATION_SERVICE);
    Notification notification = new Notification(icon, message, when);
    String title = context.getString(R.string.app_name);
    Intent notificationIntent = new Intent(context, DemoActivity.class);
    // set intent so it does not start a new activity
    notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
        | Intent.FLAG_ACTIVITY_SINGLE_TOP);
    PendingIntent intent = PendingIntent.getActivity(context, 0,
        notificationIntent, 0);
    notification.setLatestEventInfo(context, title, message, intent);
    notification.flags |= Notification.FLAG_AUTO_CANCEL;
    notificationManager.notify(0, notification);
  }

}

Java Source Code List

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