Xamarin Android,蓝牙连接不起作用

时间:2015-10-14 14:05:27

标签: c# android xamarin

我正在尝试使用Xamarin工作室进行简单的蓝牙连接。我的代码构建成功,但引发了Java.IO.IOExeption当我尝试连接蓝牙时。

这是我代码中的一个片段。

    BluetoothAdapter  BluetoothAdapter1 = BluetoothAdapter.DefaultAdapter;
    BluetoothSocket socket;
    BluetoothDevice device
    btnConnect.Click += async delegate {
            if (BluetoothAdapter1 == null)
            {
                AlertDialog1.SetMessage("Device Does not support bluetooth");

                AlertDialog1.Show();
            }


            if(!BluetoothAdapter1.IsEnabled)
            {
                AlertDialog1.SetMessage("Bluetooth is not enabled");
                AlertDialog1.Show();
            }

            else{

                device = (from bd in BluetoothAdapter1.BondedDevices where bd.Name == "GT-N8000" select bd).FirstOrDefault();

                if(device == null)
                {
                    AlertDialog1.SetMessage("Device Not Found \n Make sure you are paired to the bluetooth device");
                    AlertDialog1.Show();

                }

                else
                {
                    ParcelUuid[] list = device.GetUuids();
                    String MyUUID = list[0].ToString();



                    try 
                    {
                    socket = device.CreateRfcommSocketToServiceRecord(UUID.FromString(MyUUID));



                        socket.Connect();
                    btnConnect.Text = socket.RemoteDevice.Name;

                    socket.Close();
                }

                    catch (Exception e)
                    {
                        AlertDialog1.SetMessage(e.Message);
                        AlertDialog1.Show();
                    }


                }
            }

这是我日志中的一些输出。

[Mono] Assembly Ref addref MatrixDisplay [0xb8da14b8] - > System.Core [0xb8e6b7e0]:3 [BluetoothAdapter] 584852085:getState()。返回12 调用[BluetoothAdapter] getBluetoothService(),没有BluetoothManagerCallback [编舞]跳过295帧!应用程序可能在其主线程上做了太多工作。 [ViewRootImpl]由于删除了根视图而导致删除事件:MotionEvent {action = ACTION_MOVE,id [0] = 0,x [0] = 599.4283,y [0] = 596.4481,toolType [0] = TOOL_TYPE_FINGER,buttonState = 0, metaState = 0,flags = 0x0,edgeFlags = 0x0,pointerCount = 1,historySize = 0,eventTime = 328245301,downTime = 328245292,deviceId = 1,source = 0x1002} [InputEventReceiver]尝试完成输入事件但输入事件接收器已被释放。 [InputEventReceiver]尝试完成输入事件,但输入事件接收器已经被处理掉。

1 个答案:

答案 0 :(得分:0)

我通过在连接后不立即关闭套接字来解决这个问题。