protected void sendServiceParcelAcknowledge(String messageID, int index) { Message msg = mServiceHandler.obtainMessage(MessageUtil.ID_PARCEL_ACKNOWLEDGMENT); msg.replyTo = serviceMessenger; msg.arg1 = index; try { debug("sending IPC parcel acknowledge: " + messageID + ", " + index); if (messageID != null) msg.obj = MessageUtil.setParcelableMessage(messageID); engineMessenger.send(msg); } catch (Exception x) { debug("sendIPCEvent " + x.getClass().getSimpleName() + ", " + x.getMessage()); } }