コード例 #1
0
        protected override async Task <ImageSource> LoadImage(bool removeCache, CancellationToken token)
        {
            var src = await ScriptGalleryReadingImageCache.Instance.GetFromCacheAsync(_link, Task.Run <Stream>(async() =>
            {
                var result = await _api.GetImageFromImagePage(_link);
                return(new MemoryStream(Encoding.UTF8.GetBytes(result)));
            }, token), cancellationToken : token);

            if (removeCache)
            {
                await ScriptGalleryReadingImageCache.Instance.RemoveAsync(new[] { _link });

                await ProgressImageCache.Instance.RemoveAsync(new[] { new Uri(src), });

                src = await ScriptGalleryReadingImageCache.Instance.GetFromCacheAsync(_link, Task.Run <Stream>(async() =>
                {
                    var result = await _api.GetImageFromImagePage(_link);
                    return(new MemoryStream(Encoding.UTF8.GetBytes(result)));
                }, token), cancellationToken : token);
            }

            return(await ProgressImageCache.Instance.GetFromCacheAsync(new Uri(src), cancellationToken : token,
                                                                       progress : this));
        }