code: public static PushNotificationPayload combined(String message, int badge, String sound) {
  		if (message == null && badge < 0 && sound == null) throw new IllegalArgumentException("Must provide at least one non-null argument");
  		PushNotificationPayload payload = complex();
  		try {
  			if (message != null) payload.addAlert(message);
  			if (badge >= 0) payload.addBadge(badge);
  			if (sound != null) payload.addSound(sound);
  		} catch (JSONException e) {
  		}
  		return payload;
  	}
docs: Create a pre-defined payload with a simple alert message, a badge and a sound.
  
  @param message the alert message
  @param badge the badge
  @param sound the name of the sound
  @return a ready-to-send payload