private void InitializeView()
{
var connectionHandler = BluetoothClient.Instance.ConnectionHandler;
_notifyHandler = new DeviceNotifyingHandler(connectionHandler.GattValue, GattClientObserver.Instance);
_characteristic = GetCharacteristic(connectionHandler.GetServiceList());
_notifyHandler.ValueChanged += NotifyOnValueChanged;
_notifyHandler.Subscribe(_characteristic,
result => DialogView.ShowDialog(result ? "Successfuly subscribed" : "Failed to subscribe", this));
}
/// <summary>
/// Подключение к девайсу
/// </summary>
/// <param name="action"></param>
public void Connect(Action <bool> action)
{
//Callback hell!
_connectionHandler = BluetoothClient.Instance.ConnectionHandler;
if (_connectionHandler.IsConnected)
{
return;
}
var client = BluetoothClient.Instance;
_connectionHandler.Connect(device, (ProfileState profileState) =>
{
switch (profileState)
{
case ProfileState.Connected:
{//Подключились
_connectionHandler.DiscoverServices(status =>
{
if (status == GattStatus.Success)
{//Получен список сервисов
_characteristic = GetCharacteristic(GetServices());
var notify = new DeviceNotifyingHandler(_connectionHandler.GattValue, GattClientObserver.Instance);
notify.Subscribe(_characteristic, (bool notifyStatus) =>
{
if (notifyStatus == true)
{//Нотификация пройдена
_writingHandler = new DeviceWritingHandler(_connectionHandler.GattValue, GattClientObserver.Instance);
_writingHandler.ClearAllReadEvents();
_writingHandler.ReceivedReadResponce += _writingHandler_ReceivedReadResponce;
Status = BLE_Status.Connect;
RxPacks.Clear();
action?.Invoke(true);
}
else
{//Если нотификация не пройдена, то делать нам тут нечего и мы отключаемся от девайса
action?.Invoke(false);
}
notify.Dispose();//при любом результате выходим так
});
}
else
{
action?.Invoke(false);
}
});
break;
}
case ProfileState.Disconnected:
{
Status = BLE_Status.NotConnect;
action?.Invoke(false);
break;
}
default:
{
action?.Invoke(false);
break;
}
}
});
//====================================
IEnumerable <BluetoothGattService> GetServices()
{
var filterUuid = new[] {
UUID.FromString("00001800-0000-1000-8000-00805F9B34FB"),
UUID.FromString("00001801-0000-1000-8000-00805F9B34FB"),
UUID.FromString("7905F431-B5CE-4E99-A40F-4B1E122D00D0")
};
return(_connectionHandler?.GetServiceList().Where(s => filterUuid.All(uuid => !uuid.Equals(s.Uuid))));
}
BluetoothGattCharacteristic GetCharacteristic(IEnumerable <BluetoothGattService> serviceList)
{
var uuid = UUID.FromString("49535343-1e4d-4bd9-ba61-23c647249616");
var service = serviceList.First(s => s.Characteristics.Any(ch => ch.Uuid.Equals(uuid)));
return(service.Characteristics.First(ch => ch.Uuid.Equals(uuid)));
}
//====================================
}