public async Task Initialize(IEnumerable <TrackSectorViewModel> sectorCoordinates)
{
if (isTiming)
{
throw new InvalidOperationException("Cannot initialize LapTimer while it is already running. Please stop timing first.");
}
isTiming = false;
isFirstReading = true;
if (geolocator != null)
{
geolocator.StatusChanged -= geolocator_StatusChanged;
geolocator.UnrecoverableError -= geolocator_UnrecoverableError;
geolocator.Dispose();
}
this.sectorCoordinates = sectorCoordinates ?? Enumerable.Empty <TrackSectorViewModel>();
if (this.sectorCoordinates.Any())
{
generateSectors = false;
lastSectorNumber = this.sectorCoordinates.Max(s => s.SectorNumber);
firstSectorNumber = this.sectorCoordinates.Min(s => s.SectorNumber);
}
else
{
generateSectors = true;
lastSectorNumber = 1;
firstSectorNumber = 1;
}
lapNumber = 1;
lapStartElapsedTime = TimeSpan.Zero;
stopwatch = new Stopwatch();
geolocator = await geolocatorFactory.GetGeolocator();
geolocator.DesiredAccuracy = PositionAccuracy.High;
geolocator.MovementThreshold = 1;
geolocator.StatusChanged += geolocator_StatusChanged;
geolocator.UnrecoverableError += geolocator_UnrecoverableError;
}