C# (CSharp) VideoCacheManager.PauseAllDownloadOperationAsync Exemples

Exemple #1

        public async Task ChangeVideoCacheFolder()
        {
            // フォルダを取得
            var folderPicker = new Windows.Storage.Pickers.FolderPicker();

            folderPicker.SuggestedStartLocation = Windows.Storage.Pickers.PickerLocationId.Downloads;
            folderPicker.FileTypeFilter.Add("*");

            var newFolder = await folderPicker.PickSingleFolderAsync();

            if (newFolder == null)
            {
                return;
            }

            await _messenger.Send <Events.StartCacheSaveFolderChangingAsyncRequestMessage>();

            try
            {
                // 現在進行中のキャッシュ情報を取得
                // 全てのキャッシュ更新を一時停止
                var resumeInfo = await _videoCacheManager.PauseAllDownloadOperationAsync();

                // 新しいフォルダに存在するキャッシュ済みファイルを取り込む
                await ImportCacheRequestFromNewFolderItems(newFolder);

                // フォルダのアイテムの移動を開始
                var oldFolder = _videoCacheManager.VideoCacheFolder;
                await MoveFolderItemsToDestination(oldFolder, newFolder);

                // VideoCacheManagerのフォルダ指定を変更
                _videoCacheManager.VideoCacheFolder = newFolder;

                // 停止したキャッシュを再開
                foreach (var resume in resumeInfo.PausedVideoIdList)
                {
                    await _videoCacheManager.PushCacheRequestAsync(resume, NicoVideoQuality.Unknown);
                }

                // 新しい指定フォルダをFutureAccessListへ登録
                StorageApplicationPermissions.FutureAccessList.AddOrReplace(CACHE_FOLDER_NAME, newFolder);
            }
            catch (Exception e)
            {
                _logger.ZLogError(e, e.Message);
            }
            finally
            {
                _messenger.Send <Events.EndCacheSaveFolderChangingMessage>();
            }
        }