public void StartTracking()
{
if (_geo.IsGeolocationAvailable && !_geo.IsListening)
{
_geo.StartListening(30000, 0, false);
}
}
public void AddListener(EventHandler <PositionEventArgs> listener)
{
lock (_locker)
{
if (_locator == null)
{
throw new Exception("Locator has not yet been bound to a platform-specific implementation.");
}
if (ListeningForChanges)
{
_locator.StopListening();
}
PositionChanged += listener;
_locator.StartListening(_minimumTimeHintMS, _desiredAccuracyMeters, true);
SensusServiceHelper.Get().Logger.Log("GPS receiver is now listening for changes.", LoggingLevel.Normal, GetType());
}
}
protected override void OnResume()
{
base.OnResume();
// Get a handle on the map element
_mapFragment = FragmentManager.FindFragmentById(Resource.Id.map) as MapFragment;
_map = _mapFragment.Map;
_map.UiSettings.MyLocationButtonEnabled = true;
_map.MyLocationEnabled = true;
_locator = new Geolocator(this)
{
DesiredAccuracy = 1000
};
_locator.PositionChanged += OnLocationChanged;
_locator.StartListening(2000, 1);
}
public void StartTracking()
{
Setup();
CurrentLocation.IsEnabled = true;
if (IsTracking)
{
return;
}
if (!_geolocator.IsListening)
{
_geolocator.StartListening(5000, 1, true);
}
IsTracking = true;
_fire();
}
public async Task <LocationCoordinates> GetCurrentLocation()
{
EventHandler <PositionEventArgs> handler = null;
var result = new LocationCoordinates();
TaskCompletionSource <LocationCoordinates> tcs = new TaskCompletionSource <LocationCoordinates>();
Geolocator locator = new Geolocator {
DesiredAccuracy = 50
};
try
{
if (!locator.IsListening)
{
locator.StartListening(10, 100);
}
handler = (object sender, PositionEventArgs e) =>
{
result.Status = e.Position.Timestamp;
result.Latitude = e.Position.Latitude;
result.Longitude = e.Position.Longitude;
locator.PositionChanged -= handler;
tcs.SetResult(result);
};
locator.PositionChanged += handler;
await locator.GetPositionAsync(timeout : 10000).ContinueWith(
t =>
{
});
}
catch (System.Exception ex)
{
if (ex.InnerException.GetType().ToString() == "Xamarin.Geolocation.GeolocationException")
{
tcs.SetException(ex);
}
}
return(tcs.Task.Result);
}
public void BeginTrackingLocation()
#endif
{
Init();
#if __ANDROID__
geolocator = new Geolocator(context)
{
DesiredAccuracy = 1
};
#else
geolocator = new Geolocator()
{
DesiredAccuracy = 1
};
#endif
startTime = DateTime.Now;
geolocator.PositionChanged += delegate(object sender, PositionEventArgs e) {
if (e.Position.Accuracy == 0.0f || e.Position.Accuracy > maxHorizontalAccuracy)
{
return;
}
positionHistory.Add(e.Position);
if (previousPosition == null)
{
previousDistanceTime = startTime;
}
if (positionHistory.Count > positionHistorySize)
{
positionHistory.RemoveAt(0);
}
var canUpdateStats = positionHistory.Count >= minPositionsNeededToUpdateStats;
if (e.Position.Timestamp - previousDistanceTime <= statsCalculationInterval)
{
return;
}
previousDistanceTime = e.Position.Timestamp;
Position bestPosition = null;
var bestAccuracy = maxHorizontalAccuracy;
foreach (var position in positionHistory)
{
if (DateTimeOffset.Now - position.Timestamp <= validLocationHistoryDeltaInterval && position.Accuracy < bestAccuracy && position != previousPosition)
{
bestAccuracy = position.Accuracy;
bestPosition = position;
}
}
if (bestPosition == null)
{
bestPosition = e.Position;
}
if (canUpdateStats)
{
if (previousPosition != null)
{
CurrentDistance += DistanceInMeters(bestPosition, previousPosition);
totalAveragePaceHistory.Add(bestPosition.Speed);
CurrentPace = bestPosition.Speed;
}
}
routePositions.Add(bestPosition);
positionCounter++;
// Only insert every fifth point to minimize the amount of data being stored.
if (totalPositionHistory.Count == 0 || positionCounter % 5 == 0)
{
totalPositionHistory.Add(new RunPosition {
Speed = bestPosition.Speed,
Latitude = bestPosition.Latitude,
Longitude = bestPosition.Longitude,
PositionCaptureTime = bestPosition.Timestamp.DateTime
});
}
previousPosition = bestPosition;
};
geolocator.PositionError += delegate(object sender, PositionErrorEventArgs e) {
Console.WriteLine("Location Manager Failed: " + e.Error);
};
geolocator.StartListening(minTime: 1000, minDistance: 1, includeHeading: false);
}
