Question

编辑：已经解决，是信标问题。

我在Google Nearby Message API上遇到了一些麻烦。我按照在他们的页面（https://developers.google.com/nearby/messages/android/get-beacon-messages）上所说的那样做了，但它没有从信标中获得任何附件。

它连接到Google API客户端，它已成功订阅，但它永远不会进入 onFound ，也不会 onLost 。

我尝试了Andrew Bunner在这篇文章（Find Eddystone Beacons using Nearby Google API）中所说的内容，我到了GITHUB存储库（https://github.com/googlesamples/android-nearby/blob/master/messages/NearbyDevices/app/src/main/java/com/google/android/gms/nearby/messages/samples/nearbydevices/MainActivity.java）并尝试了他们的应用程序，但它在我的任何一个中都没有用设备（摩托罗拉Moto X第1代和谷歌Tango平板电脑），当我点击开关打开发现附近设备或共享设备信息时，它无法订阅：＆＃34;无法订阅，状态=状态{statusCode =错误，resolution = null}＆＃34;。

我检查了我的代码并与它们进行了比较，方法类似，但由于某种原因，订阅后从未显示附件。我检查了我的API密钥，清单，build.gradle，信标仪表板，OAuth面板（并检查了附件确实存在）并检查它们是否属于同一个项目（信标和API），但仍然没有＆＃ 39;工作。我看到有些人遇到同样的问题，但是我试着按照他们在答案中的说法去做，但似乎我做错了什么而且我不知道它是什么。

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_beacon);

    if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
            == PackageManager.PERMISSION_GRANTED) {
        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .addApi(Nearby.MESSAGES_API, new MessagesOptions.Builder()
                        .setPermissions(NearbyPermissions.BLE)
                        .build())
                .addConnectionCallbacks(this)
                .enableAutoManage(this, this)
                .build();
        Log.i(TAG, "API connected");
    }
    mMessageListener = new MessageListener() {

        @Override
        public void onFound(Message message) {
            String messageAsString = new String(message.getContent());
            Log.d(TAG, "Found message: " + messageAsString);
            //When a message is found
            Log.i(TAG, "Message found: " + message.toString());
            Log.i(TAG, "Message string: " + new String(message.getContent()));
            Log.i(TAG, "Message namespaced type: " + message.getNamespace() +
                    "/" + message.getType());
        }

        @Override
        public void onLost(Message message) {
            //When a message is no longer detectable
            String messageAsString = new String(message.getContent());
            Log.d(TAG, "Lost sight of message: " + messageAsString);
        }
    };

}
private void subscribe() {
    Log.i(TAG, "Subscribing.");
    SubscribeOptions options = new SubscribeOptions.Builder()
            .setStrategy(Strategy.BLE_ONLY)
            .setCallback(new SubscribeCallback() {
                @Override
                public void onExpired() {
                    super.onExpired();
                    Log.i(TAG, "No longer subscribing");
                }
            })
            .build();
    Nearby.Messages.subscribe(mGoogleApiClient, mMessageListener, options)
            .setResultCallback(new ResultCallback<Status>() {
                @Override
                public void onResult(@NonNull Status status) {
                    if (status.isSuccess()){
                        Log.i(TAG, "Subscibed succesfully");
                    }else{
                        Log.i(TAG, "Could not subscribe");
                    }
                }
            });

}
private void unsuscribe(){
    Log.i(TAG, "Unsuscribing");
    Nearby.Messages.unsubscribe(mGoogleApiClient, mMessageListener);
}

@Override
public void onStart() {
    super.onStart();
    mGoogleApiClient.connect();
    Log.i(TAG, "onStart");
}

@Override
public void onConnected(Bundle connectionHint) {

    Log.i(TAG, "GoogleApiClient connected");
    subscribe();
}

@Override
public void onConnectionSuspended(int cause) {
    Log.e(TAG, "GoogleApiClient disconnected with cause: " + cause);
}

@Override
public void onConnectionFailed(ConnectionResult result) {
    if (result.hasResolution()) {
        try {
            result.startResolutionForResult(this, REQUEST_RESOLVE_ERROR);
        } catch (IntentSender.SendIntentException e) {
            e.printStackTrace();
        }
    } else {
        Log.e(TAG, "GoogleApiClient connection failed");
    }
}

@Override
public void onStop() {

    unsuscribe();
    if (mGoogleApiClient.isConnected()) {
        mGoogleApiClient.disconnect();
    }
    super.onStop();

}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == REQUEST_RESOLVE_ERROR) {
        if (resultCode == RESULT_OK) {
            mGoogleApiClient.connect();
        } else {
            Log.e(TAG, "GoogleApiClient connection failed. Unable to resolve.");
        }
    } else {
        super.onActivityResult(requestCode, resultCode, data);
    }
}

Answer 1

您可以打开以下详细日志记录并重试吗？

$ adb shell setprop log.tag.NearbyMessages VERBOSE

$ adb shell setprop log.tag.copresGcore VERBOSE

我看不出你粘贴的代码有什么问题，看起来不错。

附近的消息API未获取任何附件

1 个答案: