public void GetImage(Uri uri, Action <byte[]> callback)
{
var fileName = cachePath + "Smeedee_img" + uri.GetHashCode();
if (File.Exists(fileName))
{
var bytes = fileReader.ReadAllBytes(fileName);
if (IsMissingImagePlaceholder(bytes))
{
bytes = null;
}
callback(bytes);
}
else
{
serviceToCache.GetImage(uri, bytes => SaveAndCallback(bytes, fileName, callback));
}
}