private async Task GetPianoSheetsAsync(bool isPortableDocumentFormatFile, StorageFolder storageFolder)
{
QueryOptions options = new QueryOptions();
options.FolderDepth = FolderDepth.Deep;
options.FileTypeFilter.Add(".jpg");
options.FileTypeFilter.Add(".png");
options.FileTypeFilter.Add(".gif");
StorageFileQueryResult query = storageFolder.CreateFileQueryWithOptions(options);
IReadOnlyList <StorageFile> imageFiles = await query.GetFilesAsync();
Dictionary <string, List <StorageFile> > parentFolderPathToImages = new Dictionary <string, List <StorageFile> >();
foreach (StorageFile file in imageFiles)
{
string parentFolderPath = file.Path.Replace(file.Name, "");
if (parentFolderPathToImages.ContainsKey(parentFolderPath))
{
parentFolderPathToImages[parentFolderPath].Add(file);
}
else
{
parentFolderPathToImages.Add(parentFolderPath, new List <StorageFile> {
file
});
}
}
foreach (KeyValuePair <string, List <StorageFile> > kvp in parentFolderPathToImages)
{
kvp.Value.Sort((file1, file2) => file1.Name.CompareTo(file2.Name));
string name = kvp.Key;
string[] parentFolderPathSplited = kvp.Key.Split(new[] { Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar });
if (parentFolderPathSplited.Length > 1)
{
name = parentFolderPathSplited[parentFolderPathSplited.Length - 2];
}
string fileType = String.Format("Images 📄×{0}", kvp.Value.Count);
if (isPortableDocumentFormatFile)
{
fileType = String.Format("PDF Document 📄×{0}", kvp.Value.Count);
}
ImageProperties properties = await kvp.Value.First().Properties.GetImagePropertiesAsync();
PianoSheetInfo pianoSheetInfo = new PianoSheetInfo(kvp.Value.First(), kvp.Value, name, fileType, properties);
PianoSheets.Add(pianoSheetInfo);
}
}
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
CoreApplication.GetCurrentView().TitleBar.ExtendViewIntoTitleBar = true;
ApplicationView.GetForCurrentView().TitleBar.ButtonBackgroundColor = Colors.Black;
ApplicationView.GetForCurrentView().TitleBar.ButtonForegroundColor = Colors.White;
if (this.Frame.CanGoBack)
{
SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Visible;
}
else
{
SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Collapsed;
}
displayRequest.RequestActive();
pianoSheetInfo = e.Parameter as PianoSheetInfo;
viewPhase = 0;
await RenderView();
base.OnNavigatedTo(e);
}
private void OnSheetClick(object sender, ItemClickEventArgs e)
{
persistedItem = e.ClickedItem as PianoSheetInfo;
this.Frame.Navigate(typeof(ViewPage), persistedItem);
}