/* * Event handler to download image */ public static async Task <bool> DownloadImage(object sender, RoutedEventArgs e, Image img) { try { StorageFolder AppFolder; string fileName = img.Name + ".gif"; var CheckFolder = await KnownFolders.PicturesLibrary.TryGetItemAsync("Gifology"); if (CheckFolder == null) { AppFolder = await KnownFolders.PicturesLibrary.CreateFolderAsync("Gifology"); } else { AppFolder = CheckFolder as StorageFolder; } try { if (await AppFolder.TryGetItemAsync(fileName) == null) { var httpClient = new HttpClient(); var OriginalUrl = ((BitmapImage)img.Source).UriSource.OriginalString; var RequestUri = Uri.IsWellFormedUriString(ConvertSourceType(OriginalUrl, SettingsItem.GifQuality), UriKind.Absolute) ? new Uri(ConvertSourceType(OriginalUrl, SettingsItem.GifQuality)) : new Uri(ConvertSourceType(OriginalUrl, "High")); HttpResponseMessage message = await httpClient.GetAsync(RequestUri); StorageFile SampleFile = await AppFolder.CreateFileAsync(fileName, CreationCollisionOption.ReplaceExisting); byte[] file = await message.Content.ReadAsByteArrayAsync(); await FileIO.WriteBytesAsync(SampleFile, file); var files = await AppFolder.GetFilesAsync(); return(true); } else { return(true); } } catch { return(false); } } catch { return(false); } }
public async Task <List <string> > ReadCSVLinesAsync() { IList <string> csvLines = new List <string>(); try { File = await AppFolder.GetFileAsync(FullFileName); csvLines = await FileIO.ReadLinesAsync(File); return(await Task.FromResult(csvLines.ToList())); } catch (Exception) { await AppFolder.CreateFileAsync(FullFileName); return(await Task.FromResult(csvLines.ToList())); } }