Google Cloud Messaging通知功能？

Question

Now that I got GCM working, I am looking for a way to do in app functions when a message is received, or notification is clicked.

Sadly I can not find anything about this. I do however remember vaguely that these things where possible.

I know this is not an good Stackoverflow question, but I really need an answer to this.

Answer 1

This can be done extending an IntentService :

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

public class GCMprocess extends IntentService {
  public GCMprocess() { super("GCMIntentService"); }

  @Override
  protected void onHandleIntent(final Intent intent) {
    final GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this);

    final String messageType = gcm.getMessageType(intent);
    final Bundle extras = intent.getExtras();

    if ((!extras.isEmpty()) && (GoogleCloudMessaging.MESSAGE_TYPE_MESSAGE.equals(messageType))) {
      // This condition would test whether there's a field named code which is called foo
      if (extras.getString("code").equals("foo")) {
        doWhateverYouNeed();
      }
    }

    GCMBroadcastReceiver.completeWakefulIntent(intent);
  }
}

As this is also a Service , you need to register it in your AndroidManifest file:

<service android:name="com.foo.bar.GCMprocess" />