public IObservable <LocationRecorded> GetDeviceLocation(int timeoutMilliseconds, int howMany)
{
return
(Observable.Defer(() => PositionChanged())
.CatchAndLog(ExceptionHandling, NullPosition)
.Timeout(TimeSpan.FromMilliseconds(timeoutMilliseconds), _scheduler.TaskPool)
.Take(howMany)
.Select(position =>
{
if (position == null)
{
return null;
}
_lastPositionRecorded = position;
return _lastPositionRecorded;
}));
}
LocationRecorded createPositionFromPlatform(CLLocation location)
{
try
{
var p = new LocationRecorded();
p.Accuracy = location.HorizontalAccuracy;
p.Latitude = location.Coordinate.Latitude;
p.Longitude = location.Coordinate.Longitude;
if (location.VerticalAccuracy > -1)
{
p.Altitude = location.Altitude;
p.AltitudeAccuracy = location.VerticalAccuracy;
}
if (location.Speed > -1)
{
p.Speed = location.Speed;
}
try
{
var date = (DateTime)location.Timestamp;
p.Recorded = new DateTimeOffset(date);
}
catch (Exception)
{
p.Recorded = DateTimeOffset.UtcNow;
}
return(p);
}
finally
{
location.Dispose();
}
}
