我想要做一个简单的蓝牙连接使用Xamarin工作室。我的代码成功构建,但引发了Java.IO.IOExeption当我尝试连接蓝牙时。Xamarin Android,蓝牙连接不工作
这是我的代码片段。
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();
}
}
}
这是我的一些日志输出。
[Mono] Assembly Ref addref MatrixDisplay [0xb8da14b8] - > System.Core [0xb8e6b7e0]:3 [BluetoothAdapter] 584852085:getState()。返回12 [BluetoothAdapter] getBluetoothService()调用不带BluetoothManagerCallback [编舞]跳过了295帧!应用程序可能在其主线程上做了太多工作。由于删除了根视图,因此删除了事件: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]试图完成一个输入事件,事件接收器已经处理完毕。 [InputEventReceiver]试图完成一个输入事件,但输入事件接收器已被处置。
你确定清单许可已启用吗? – Kush
是的我有必要的清单permision,蓝牙和bluetooth_admin ... – Ogbe