/// <summary>
/// Entry point of connection thread
/// </summary>
private async Task ConnectThreadRunAsync(PairedFoxDTO foxToConnect)
{
Exception lastException = null;
using (IProgressDialog progress = UserDialogs.Instance.Progress("Connecting...", null, null, true, MaskType.Clear))
{
for (var attempt = 0; attempt < ConnectionAttemptsCount; attempt++)
{
progress.PercentComplete = (int)Math.Round(100 * attempt / (double)ConnectionAttemptsCount);
try
{
await _bluetoothCommunicator.ConnectAsync(foxToConnect);
// We survived till here, so connection is estabilished
lastException = null;
break;
}
catch (Exception ex)
{
lastException = ex;
}
}
}
if (lastException != null)
{
_onConnectionFailed(lastException);
await _userNotifier.ShowErrorMessageAsync("Failed to connect!", $"Reason: { lastException.Message }");
}
}
public async Task ConnectAsync(PairedFoxDTO foxToConnect)
{
_ = foxToConnect ?? throw new ArgumentNullException(nameof(foxToConnect));
if (!_isDelegatesSetUp)
{
throw new InvalidOperationException("Delegates aren't set up!");
}
var connectThread = new Thread(async() => await ConnectThreadRunAsync(foxToConnect));
connectThread.Start();
}
public async Task ConnectAsync(PairedFoxDTO fox)
{
if (_socket != null && _socket.IsConnected)
{
throw new InvalidOperationException("Already connected to fox!");
}
if (_onBTCommunicatorConnect == null)
{
throw new InvalidOperationException("OnBTCommunicatorConnect delegate is null!");
}
if (_onBTCommunicatorDisconnect == null)
{
throw new InvalidOperationException("OnBTCommunicationDisconnect delegate is null!");
}
if (_onBTCommunicatorNewByteRead == null)
{
throw new InvalidOperationException("OnBTCommunicatorNewByteRead delegate is null!");
}
var foxes = await _pairedFoxesEnumerator.EnumerateAsync();
if (!foxes.Any(f => f.MAC.Equals(fox.MAC)))
{
throw new InvalidOperationException($"Fox { fox.DisplayName } is not found!");
}
// We are sure that adapted exists and enabled because of checks in _pairedFoxesEnumerator.EnumerateAsync()
// Also we are sure that fox with given MAC exists too
var device = BluetoothAdapter
.DefaultAdapter
.BondedDevices
.First(d => d.Address.Equals(fox.MAC));
try
{
// What does this magic UUID mean?
_socket = device.CreateInsecureRfcommSocketToServiceRecord(UUID.FromString("00001101-0000-1000-8000-00805f9b34fb"));
if (_socket == null)
{
throw new InvalidOperationException("Unable to get bluetooth socket!");
}
_socket.Connect();
if (!_socket.IsConnected)
{
throw new InvalidOperationException("Unable to connect to fox!");
}
// Starting reader thread
_readerThread = new Thread(new ThreadStart(ReaderThreadRun));
_readerThread.Start();
_onBTCommunicatorConnect(fox);
}
catch (Exception)
{
if (_socket != null && _socket.IsConnected)
{
_socket.Close();
}
throw;
}
}
private void OnConnect(PairedFoxDTO connectedFox)
{
_onConnected(connectedFox);
}
