public async void SubscribeAndHandleDeviceAsync(IBacGenericDevice device)
{
//check if we chose the same device
if (ConnectedDevice == device)
{
return;
}
if (ConnectedDevice != null)
{
//unsubsribe from connection events. Devices could potentially persist.
ConnectedDevice.ConnectionStateChanged -= Device_ConnectionStateChanged;
//Disconnect if choosing new device.
if (ConnectedDevice.ConnectionState != BACConnectionState.DISCONNECTED)
{
await ConnectedDevice.Disconnect();
}
}
ConnectedDevice = device;
if (ConnectedDevice != null)
{
ConnectedDevice.ConnectionStateChanged += Device_ConnectionStateChanged;
Application.Current.Properties["device"] = ConnectedDevice.Guid;
}
// HandleConnectionState();
}
/// <summary>
/// Start an auto-connection sequence
/// </summary>
private async void StartAutoConnectionRoutine()
{
Console.WriteLine("Started auto connect !!");
if (ConnectedDevice != null)
{
await ConnectedDevice.Disconnect();
ConnectedDevice = null;
}
while (ConnectedDevice == null && List.Count > 0)
{
ConnectedDevice = await BacCommunication.CurrentRepository.StartBluetoothLeAutoConnection(List);
if (ConnectedDevice != null)
{
var wheelDiameter = await ConnectedDevice.Read(227);
if (Math.Abs(wheelDiameter - 279.4) > 0.1)
{
try
{
await ConnectedDevice.Write(227, (short)279.4);
}
catch (Exception exception)
{
Console.WriteLine(exception);
UnsubscribeToDevice();
HandleConnectionState();
}
}
var gearRatio = await ConnectedDevice.Read(226) / 256;
if (gearRatio != 1)
{
try
{
await ConnectedDevice.Write(226, 1);
}
catch (Exception exception)
{
Console.WriteLine(exception);
UnsubscribeToDevice();
HandleConnectionState();
}
}
}
}
if (ConnectedDevice == null)
{
return;
}
App.LocalDevice = ConnectedDevice;
HandleConnectionState();
SubscribeToConnectedDevice();
}
private async void ConnectController()
{
if (ConnectedDevice != null)
{
switch (ConnectedDevice.ConnectionState)
{
case BACConnectionState.DISCONNECTED when !Application.Current.Properties.ContainsKey("device"):
await _pageService.PushAsync(new ListOfDevices(this));
break;
case BACConnectionState.DISCONNECTED:
StartAutoConnectionRoutine();
break;
case BACConnectionState.CONNECTED:
await ConnectedDevice.Disconnect();
List.Remove(Application.Current.Properties["device"].ToString());
ConnectedDevice = null;
break;
case BACConnectionState.CONNECTING:
break;
case BACConnectionState.DISCONNECTING:
break;
case BACConnectionState.ERROR_STATE:
break;
default:
throw new ArgumentOutOfRangeException();
}
}
else
{
if (!Application.Current.Properties.ContainsKey("device"))
{
await _pageService.PushAsync(new ListOfDevices(this));
}
SetupCommunications();
}
}
