Question

我正在为Gear S3编写一个Web应用程序，并为C＃中的UWP编写一个配套的Win-App。我想要它做什么：S3充当BT服务器，发送数据，Win-App作为客户端，应该接收数据。在Tizen中，我使用了registerRfcommServiceByUUID（）函数，如下所示：

function publishTransferService() {

if(remoteDevice.isConnented){
    console.log("Connection Status: " + remoteDevice.isConnected);
    var TRANS_SERVICE_UUID = '5BCE9431-6C75-32AB-AFE0-2EC108A30860';
    adapter.registerRFCOMMServiceByUUID(TRANS_SERVICE_UUID, 'My Service', ServiceSuccessCb,
            function(e) {
        console.log( "Could not register service record, Error: " + e.message);
    });
}else{
    console.error("Connection Status: " + remoteDevice.isConnected);
    }

在C＃中，我尝试按如下方式连接服务：

        //to ulong converted MAC-Address of the Gear
        ulong gearBtAddress = 145914022804881;
        //create device-instance of the gear
        BluetoothDevice gearDevice = await  BluetoothDevice.FromBluetoothAddressAsync(gearBtAddress);
        //list the services found on the gear and connect to the one with
        //the same uuid as in tizen
        var gearServices = await gearDevice.GetRfcommServicesAsync();
        foreach (var service in gearServices.Services)
        {
            if(service.ServiceId == RfcommServiceId.FromUuid(Guid.Parse("5BCE9431-6C75-32AB-AFE0-2EC108A30860")))
            {
                _service = await RfcommDeviceService.FromIdAsync(service.ToString());
            }

        }

我面临的问题是，C＃找不到想要的Uuid，虽然它找到了其他几个uuid。我不知道它丢失的地方？

提前致谢。

Answer 1

我自己解决了，问题是，UUID是未缓存的。添加以下内容就是这样做：

        var cacheMode = BluetoothCacheMode.Uncached;
        var gearServices = await gearDevice.GetRfcommServicesAsync(cacheMode);

如何连接Gear S3上的蓝牙服务？

1 个答案: