static async Task UpdatePosition(CLLocation location)
{
var result = new GeoPosition
{
Accuracy = location.HorizontalAccuracy,
Latitude = location.Coordinate.Latitude,
Longitude = location.Coordinate.Longitude,
Altitude = location.Altitude,
AltitudeAccuracy = location.VerticalAccuracy,
Speed = location.Speed
};
if (location.VerticalAccuracy == -1)
{
result.Altitude = null;
result.AltitudeAccuracy = null;
}
if (location.Speed == -1)
{
result.Speed = null;
}
await PositionChanged?.RaiseOn(Thread.Pool, result);
location.Dispose();
}
static Task OnListenerPositionChanged(GeoPosition position)
{
if (!IsTracking)
{
return(Task.CompletedTask);
}
LastPosition = position;
return(PositionChanged.RaiseOn(Thread.Pool, position));
}