private async Task ConnectDevice(string name)
{
BluetoothDevice device = null;
BluetoothAdapter adapter = BluetoothAdapter.DefaultAdapter;
while (_ct.IsCancellationRequested == false)
{
try
{
Thread.Sleep(250);
adapter = BluetoothAdapter.DefaultAdapter;
if (adapter == null)
{
System.Diagnostics.Debug.WriteLine("No Bluetooth adapter found.");
}
else
{
System.Diagnostics.Debug.WriteLine("Adapter found!!");
}
if (!adapter.IsEnabled)
{
System.Diagnostics.Debug.WriteLine("Bluetooth adapter is not enabled.");
}
else
{
System.Diagnostics.Debug.WriteLine("Adapter enabled!");
}
System.Diagnostics.Debug.WriteLine("Try to connect to " + name);
foreach (var bd in adapter.BondedDevices)
{
System.Diagnostics.Debug.WriteLine("Paired devices found: " + bd.Name.ToUpper());
if (bd.Name.ToUpper().IndexOf(name.ToUpper()) >= 0)
{
System.Diagnostics.Debug.WriteLine("Found " + bd.Name + ". Try to connect with it!");
device = bd;
break;
}
}
if (device == null)
{
System.Diagnostics.Debug.WriteLine("Named device not found.");
}
else
{
UUID uuid = UUID.FromString("00001101-0000-1000-8000-00805f9b34fb");
bthSocket = device.CreateInsecureRfcommSocketToServiceRecord(uuid);
if (bthSocket != null)
{
await bthSocket.ConnectAsync();
var mReader = new InputStreamReader(bthSocket.InputStream);
var buffer = new BufferedReader(mReader);
if (bthSocket.IsConnected)
{
System.Diagnostics.Debug.WriteLine("Connected!");
while (_ct.IsCancellationRequested == false)
{
if (MessageToSend != null)
{
var chars = MessageToSend.ToCharArray();
var bytes = new List <byte>();
foreach (var character in chars)
{
bytes.Add((byte)character);
}
await bthSocket.OutputStream.WriteAsync(bytes.ToArray(), 0, bytes.Count);
MessageToSend = null;
}
while (buffer.Ready())
{
// I read...
char[] chr = new char[100];
LastReceivedData = buffer.ReadLine();
onReceive?.Invoke(this, LastReceivedData);
}
}
}
}
}
}
catch
{
}
finally
{
if (bthSocket != null)
{
bthSocket.Close();
}
device = null;
adapter = null;
}
}
}
