我正在尝试通过BT SPP接收连接到服务器的客户端设备的响应。创建客户端套接字并启动绑定之后Client = device.CreateSocket(ServiceUuid);
Client.ConnectionStateChanged += ClientConnectionStateChanged;
device.ConnectionStateChanged += DeviceConnectionStateChanged;
device.CreateBond();
我在绑定回调Client.Connect();
中调用connect方法,然后订阅OnDataReceived事件Client.DataReceived += OnDataReceived;
现在一切正常,但是从不调用OnDataReceived,就好像没有返回数据一样。但是,由于我还控制着运行在辅助设备上的服务器,所以我知道有数据正在发送回去,为什么它却没有收到?
请参阅下面的DataReceived()函数测试代码。
303 public async Task DataReceived_CLIENT_EVENT()
304 {
305 try
306 {
307 /* We can't occupy the precondition, if BT feature is not supported in Manual TC */
308 if (_isBluetoothSupported == false)
309 {
310 BluetoothHelper.DisplayLabel("DataReceived_CLIENT_EVENT");
311 await ManualTest.WaitForConfirm();
312 return;
313 }
314
315 BluetoothSetup.CreateClientSocketUtil();
316 if (BluetoothSetup.Client == null)
317 {
318 ManualTest.DisplayCustomLabel("Precondition failed: Test device should be paired to the remote device.");
319 await ManualTest.WaitForConfirm();
320 return;
321 }
322
323 await BluetoothSetup.ConnectSocketUtil();
324 BluetoothSetup.Client.DataReceived += (sender, args) =>
325 {
326 Log.Info(Globals.LogTag, "DataReceived in client: "+args.Data.Data);
327 BluetoothHelper.DisplayPassLabel("DataReceived_SERVER_EVENT");
328 };
329 await ManualTest.WaitForConfirm();
并且,请检查ConnectionStateChanged回调中的结果是否成功。