private async Task <IEnumerable <PictureViewModel> > LoadMorePictures(string keywords, LocationRect searchBounds)
{
try
{
double?maxDistance = null;
double?longitude = null;
double?latitude = null;
if (searchBounds != null)
{
maxDistance = LocationService.ComputeRadiusInKm(searchBounds);
longitude = searchBounds.Center.Longitude;
latitude = searchBounds.Center.Latitude;
}
var items = await ExecuteAsync(new SearchMediaInCategoryRequest { Keywords = keywords, MaxDistance = maxDistance, Latitude = latitude, Longitude = longitude, MaxAge = 1000 * Constants.MillisPerDay, PageNumber = 0, PageSize = Constants.ItemsPerPage, Category = Category.Id });
var basePictureUri = new Uri(ResourceDictionary["BaseThumbnailUrl"] as string, UriKind.Absolute);
var result = new List <PictureViewModel>(items.Content.Count());
foreach (var item in items.Content)
{
result.Add(new PictureViewModel(basePictureUri, item));
}
return(result);
}
catch (Exception)
{
return(Enumerable.Empty <PictureViewModel>());
}
}
private async void TriggerNewSearch()
{
var radius = LocationService.ComputeRadiusInKm(searchBounds);
var longitude = searchBounds.Center.Longitude;
var latitude = searchBounds.Center.Latitude;
var result = await ExecuteAsync(new MapMediaMatchCountRequest { Keywords = Keywords, MaxAge = Constants.MillisPerDay * 1000, Radius = radius, Latitude = latitude, Longitude = longitude });
Items.Clear();
foreach (var item in result)
{
Items.Add(new GeoStatisticViewModel(item));
}
}