public MapBounds GetBoundsForNearestVehicles(bool isUsingGeoServices, Address pickup, IEnumerable <AvailableVehicle> cars)
{
if (cars == null || !cars.Any() || !_settings.Data.ZoomOnNearbyVehicles)
{
return(null);
}
var radius = _settings.Data.ZoomOnNearbyVehiclesRadius;
var vehicleCount = _settings.Data.ZoomOnNearbyVehiclesCount;
var centerLatitude = pickup.Latitude;
var centerLongitude = pickup.Longitude;
var vehicles = OrderVehiclesByDistanceIfNeeded(isUsingGeoServices, pickup, cars)
.Where(car => Position.CalculateDistance(car.Latitude, car.Longitude, centerLatitude, centerLongitude) <= radius)
.Take(vehicleCount)
.ToArray();
if (!vehicles.Any())
{
return(null);
}
var distanceFromLastVehicle = Position.CalculateDistance(vehicles.Last().Latitude, vehicles.Last().Longitude, centerLatitude, centerLongitude);
var maximumBounds = MapBounds.GetBoundsFromCenterAndRadius(centerLatitude, centerLongitude, distanceFromLastVehicle, distanceFromLastVehicle);
return(maximumBounds);
}
public async Task <GeoAddress[]> GeocodeAddressAsync(string query, string currentLanguage, double?pickupLatitude, double?pickupLongitude, double searchRadiusInMeters)
{
// Do nothing with currentLanguage parameter since Android Geocoder
// automatically gets the results using the system language
var geocoder = new Geocoder(_androidGlobals.ApplicationContext);
Position lowerLeft = null;
Position upperRight = null;
if (!query.ToLowerInvariant().Contains("bounds=") &&
pickupLatitude.HasValue && pickupLongitude.HasValue &&
pickupLatitude.Value != 0 && pickupLatitude.Value != 0)
{
// Note that biasing only prefers results within the bounds; if more relevant results exist outside of these bounds, they may be included.
var mapBounds = MapBounds.GetBoundsFromCenterAndRadius(pickupLatitude.Value, pickupLongitude.Value, searchRadiusInMeters, searchRadiusInMeters);
lowerLeft = new Position {
Latitude = mapBounds.SouthBound, Longitude = mapBounds.WestBound
};
upperRight = new Position {
Latitude = mapBounds.NorthBound, Longitude = mapBounds.EastBound
};
}
var locationsTask = lowerLeft != null && upperRight != null
? geocoder.GetFromLocationNameAsync(query.Replace("+", " "), 100, lowerLeft.Latitude, lowerLeft.Longitude, upperRight.Latitude, upperRight.Longitude)
: geocoder.GetFromLocationNameAsync(query.Replace("+", " "), 100);
try
{
var locations = await locationsTask;
return(locations.Select(ConvertAddressToGeoAddress).ToArray());
}
catch (Exception ex)
{
_logger.LogError(ex);
return(new GeoAddress[0]);
}
}