public static BitmapImage GetDecodedBitmapImage(Photo photo, DecodeResolutions res)
{
if (res == DecodeResolutions.High)
{
return new BitmapImage { UriSource = new Uri(photo.GetImageUrl()), DecodePixelWidth = 640 };
}
else if (res == DecodeResolutions.Medium)
{
return new BitmapImage { UriSource = new Uri(photo.GetImageUrl()), DecodePixelWidth = 480 };
}
else
{
return new BitmapImage { UriSource = new Uri(photo.GetImageUrl()), DecodePixelWidth = 240 };
}
}
private void AddDownloadRequest(Photo photo, int index)
{
if (BackgroundTransferService.Requests.Count() >= MAX_TILE_IMAGE_COUNT)
{
return;
}
string filename = "tile" + index.ToString() + ".jpg";
Uri transferUri = new Uri(photo.GetImageUrl(), UriKind.Absolute);
// Create the new transfer request, passing in the URI of the file to
// be transferred.
BackgroundTransferRequest transferRequest = new BackgroundTransferRequest(transferUri);
// Set the transfer method. GET and POST are supported.
transferRequest.Method = "GET";
// Set download location uri
transferRequest.DownloadLocation = new Uri("shared/transfers/" + filename, UriKind.RelativeOrAbsolute);
transferRequest.TransferStatusChanged += new EventHandler<BackgroundTransferEventArgs>(transfer_TransferStatusChanged);
transferRequest.Tag = filename;
ProcessTransfer(transferRequest);
// Start request
try
{
BackgroundTransferService.Add(transferRequest);
}
catch (InvalidOperationException ex)
{
System.Diagnostics.Debug.WriteLine("Unable to add background transfer request. " + ex.Message);
}
catch (Exception)
{
System.Diagnostics.Debug.WriteLine("Unable to add background transfer request.");
}
}