/// <summary>
/// Discovers the bluetooth headsets and populates the devices list.
/// </summary>
public async Task FindDevicesAsync()
{
Devices.Clear();
_deviceListGnImuService = await DeviceInformation.FindAllAsync(
GattDeviceService.GetDeviceSelectorFromUuid(Guid.Parse(IHSUuids.GnImuService)));
if (_deviceListGnImuService.Count > 0)
{
foreach (var deviceInformation in _deviceListGnImuService)
{
IHSDevice device = new IHSDevice(deviceInformation);
Devices.Add(device);
}
}
}
/// <summary>
/// Initializes (acquires) the GATT services.
/// </summary>
/// <param name="device">The headset device whose services to initialize.</param>
/// <returns>True, if successful. False otherwise.</returns>
public async Task <bool> InitializeServicesAsync(IHSDevice device)
{
if (_deviceInfoService != null)
{
_deviceInfoService.Device.ConnectionStatusChanged -= OnDeviceConnectionStatusChangedAsync;
}
try
{
_gnImuService = await GattDeviceService.FromIdAsync(device.DeviceInformation.Id);
_gnSystemService = _gnImuService.Device.GetGattService(Guid.Parse(IHSUuids.GnSystemService));
_gnGPSservice = _gnImuService.Device.GetGattService(Guid.Parse(IHSUuids.GnGpsService));
_deviceInfoService = _gnImuService.Device.GetGattService(IHSUuids.CreateGuidfromWellKnownUUID(IHSUuids.DeviceInfoServiceId));
_batteryInfoService = _gnImuService.Device.GetGattService(IHSUuids.CreateGuidfromWellKnownUUID(IHSUuids.BatteryServiceId));
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("InitializeServiceAsync(): " + e.Message);
}
if (_deviceInfoService != null)
{
_deviceInfoService.Device.ConnectionStatusChanged += OnDeviceConnectionStatusChangedAsync;
_deviceInfoHandler = new IHSDeviceInfoHandler(DeviceInfo, _deviceInfoService, _batteryInfoService);
}
if (_gnImuService != null && _gnGPSservice != null && _gnSystemService != null)
{
_sensorReadingsHandler = new IHSSensorReadingsHandler(SensorReadings, Gps, _gnImuService, _gnGPSservice, _gnSystemService);
_sensorReadingsHandler.SensorsListenedToChanged += SensorsListenedToChanged;
}
System.Diagnostics.Debug.WriteLine("InitializeServiceAsync(): Status:"
+ "\n\t- GN system service: " + ((_gnSystemService == null) ? "FAIL" : "OK")
+ "\n\t- Device information service: " + ((_deviceInfoService == null) ? "FAIL" : "OK")
+ "\n\t- Battery informatiojn service: " + ((_batteryInfoService == null) ? "FAIL" : "OK")
+ "\n\t- GN IMU service: " + ((_gnImuService == null) ? "FAIL" : "OK")
+ "\n\t- GN GPS service: " + ((_gnGPSservice == null) ? "FAIL" : "OK"));
IsInitialized = (_deviceInfoService != null && _gnImuService != null);
return(IsInitialized);
}