private static async Task <string> GetCity(Geoposition position)
{
var culture = new CultureInfo("en-US");
// Ключ доступа к BingMaps API.
const string bingApiKey = "AgDeteITUMycomwytDapPxEtYzVsXGgl7rjygsBaEiZKrNS7mvIGBBc_M3J4ky-8";
var serializer = new DataContractJsonSerializer(typeof(Response));
// Отправляем запрос к API, в качестве параметров указывая координаты устройства и ключ.
var response = await ViewModelServices.GetHttpResponseAsync(
String.Format(culture, "http://dev.virtualearth.net/REST/v1/Locations/{0},{1}?o=json&key={2}",
position.Coordinate.Point.Position.Latitude,
position.Coordinate.Point.Position.Longitude,
bingApiKey));
Response restApiResponse;
try
{
restApiResponse = serializer.ReadObject(response) as Response;
}
catch (SerializationException)
{
throw;
}
// Покопавшись в документации к API, выясняем, где в ответе найти город. Возвращаем его.
return(restApiResponse.ResourceSets[0].Resources[0].Address.AdminDistrict2);
}
protected async Task <TViewModel> Bind <TViewModel>(object settings) where TViewModel : IViewModel, new()
{
var result = new TViewModel();
if (settings != null)
{
await ViewModelServices.CopyData(settings, result);
}
return(result);
}
public async Task BindModelAsync(ModelBindingContext bindingContext)
{
var value = bindingContext.ValueProvider.GetValue(bindingContext.ModelName).FirstValue;
bindingContext.Result = ModelBindingResult.Success(await ViewModelServices.Convert(value.OrEmpty(), bindingContext.ModelType));
}
