从Android Wear向主机设备发送消息

Question

我正在编写一个定制的Android Wear应用程序，该应用程序应该向连接的主机设备（手机）发送一次性消息。通过对API的深入研究，我发现以下教程应该可以很好地工作：http://developer.android.com/training/wearables/data-layer/messages.html

我的Android应用程序有一个WearableListenerService,我的Android Wear应用程序使用Message API发送消息。WearableListenerService在通过以下方法进行日志记录连接仿真器时调用GET，因此我非常肯定服务连接良好

@Override
public void onPeerConnected(Node peer) {
    super.onPeerConnected(peer);

    String id = peer.getId();
    String name = peer.getDisplayName();

    Log.d(LOG_TAG, "Connected peer name & ID: " + name + "|" + id);
}

日志输出：

/AndroidWearListenerService(19892): Connected peer name & ID: facdc219-37f5-4326-8fa6-1c8b8d3b6669|facdc219-37f5-4326-8fa6-1c8b8d3b6669

但是,onMessageReceived方法从未被触发：

@Override
public void onMessageReceived(MessageEvent messageEvent) {
    Log.d(LOG_TAG, "MessageEvent received: " + messageEvent.getData());
    //do work
}

这是我的Android穿戴代码。我已经删除了大部分锅炉板代码，只留下必要的位

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_my);

    final GoogleApiClient googleApiClient = new GoogleApiClient.Builder(this)
            .addApi(Wearable.API)
            .build();

    googleApiClient.connect();

    final WatchViewStub stub = (WatchViewStub) findViewById(R.id.watch_view_stub);
    stub.setOnLayoutInflatedListener(new WatchViewStub.OnLayoutInflatedListener() {
        @Override
        public void onLayoutInflated(WatchViewStub stub) {
            fireMessage();
        }

        private void fireMessage() {
            // Send the RPC
            PendingResult<NodeApi.GetConnectedNodesResult> nodes = Wearable.NodeApi.getConnectedNodes(googleApiClient);
            nodes.setResultCallback(new ResultCallback<NodeApi.GetConnectedNodesResult>() {
                @Override
                public void onResult(NodeApi.GetConnectedNodesResult result) {
                    for (int i = 0; i < result.getNodes().size(); i++) {
                        Node node = result.getNodes().get(i);
                        String nName = node.getDisplayName();
                        String nId = node.getId();
                        Log.d(TAG, "Node name and ID: " + nName + " | " + nId);

                        Wearable.MessageApi.addListener(googleApiClient, new MessageApi.MessageListener() {
                            @Override
                            public void onMessageReceived(MessageEvent messageEvent) {
                                Log.d(TAG, "Message received: " + messageEvent);
                            }
                        });

                        PendingResult<MessageApi.SendMessageResult> messageResult = Wearable.MessageApi.sendMessage(googleApiClient, node.getId(),
                                PATH, null);
                        messageResult.setResultCallback(new ResultCallback<MessageApi.SendMessageResult>() {
                            @Override
                            public void onResult(MessageApi.SendMessageResult sendMessageResult) {
                                Status status = sendMessageResult.getStatus();
                                Log.d(TAG, "Status: " + status.toString());
                                if (status.getStatusCode() != WearableStatusCodes.SUCCESS) {
                                    alertButton.setProgress(-1);
                                    label.setText("Tap to retry. Alert not sent :(");
                                }
                            }
                        });
                    }
                }
            });
        }
    });
}

D/MyWearApp MyActivity( 2014): Node name and ID: a2ba665d-a559-4a95-91d2-c16fc7873e28 | a2ba665d-a559-4a95-91d2-c16fc7873e28
D/MyWearApp MyActivity( 2014): Status: Status{statusCode=SUCCESS, resolution=null}

Answer 1

您是否确保了两个应用程序的“applicationID”是相同的，即Android系统上的应用程序和手机上的应用程序？