async void GetPosition()
{
try
{
locator = new Geolocator{DesiredAccuracy =50};
if ( locator.IsListening != true )
locator.StartListening(minTime: 1000, minDistance: 0);
position = await locator.GetPositionAsync (timeout: 20000);
}
catch ( Exception e)
{
}
}
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 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;
}
private void UpdateLocation()
{
locationManager = new Geolocator (this);
locationManager.PositionChanged += (sender, e) => {
location = e.Position;
locationManager.StopListening ();
};
locationManager.StartListening (0, 0);
}