internal ReverseGeocodeRequest(MapService service, double latitude, double longitute) : base(service, ServiceRequestType.ReverseGeocode)
{
// The Maps Service invokes this callback when the address is obtained from the specified coordinates.
_geocodeCallback = (result, id, index, total, address, userData) =>
{
errorCode = result;
if (result.IsSuccess())
{
// The parameter address must be released using maps_address_destroy().
var addressHandle = new Interop.AddressHandle(address, needToRelease: true);
_addressList.Add(new PlaceAddress(addressHandle));
if (_addressList.Count == total)
{
_requestTask?.TrySetResult(_addressList);
}
}
else
{
// If search is failed, the value of total is 0 and address is NULL
_requestTask?.TrySetException(errorCode.GetException(errMessage));
}
};
startExecutionAction = new Action(() =>
{
int requestID;
errMessage = $"Failed to get address for given coordinates: {latitude}:{longitute}";
errorCode = _service.handle.ReverseGeocode(latitude, longitute, _service.Preferences.handle, _geocodeCallback, IntPtr.Zero, out requestID);
if (errorCode.IsFailed() && errorCode != Interop.ErrorCode.Canceled)
{
_requestTask?.TrySetException(errorCode.GetException(errMessage));
}
_requestID = requestID;
});
}
internal PlaceAddress(Interop.AddressHandle nativeHandle)
{
handle = nativeHandle;
}
/// <summary>
/// Constructs a map address object.
/// </summary>
/// <since_tizen> 3 </since_tizen>
/// <exception cref="System.InvalidOperationException">Thrown when native operation failed to allocate memory.</exception>
public PlaceAddress()
{
handle = new Interop.AddressHandle();
}
