Question

This is my code for Windows 8 metro apps, in which I copy 1 image from the local folder to my app storage folder and then it shows a tile notification. Please help me to auto copy all images from Picture Library and then these images shown in tile notifications. i don t know how to access or copy all images from Picture Library... no user interface for copy images.

public sealed partial class BlankPage : Page { string imageRelativePath = String.Empty;

    public BlankPage()
    {
        this.InitializeComponent();
        CopyImages();
    }

    public async void CopyImages()
    {

        FileOpenPicker picker = new Windows.Storage.Pickers.FileOpenPicker();
        picker.ViewMode = PickerViewMode.Thumbnail;
        picker.SuggestedStartLocation = PickerLocationId.PicturesLibrary;
        picker.FileTypeFilter.Add(".jpg");
        picker.FileTypeFilter.Add(".jpeg");
        picker.FileTypeFilter.Add(".png");
        picker.CommitButtonText = "Copy";
        StorageFile file = await picker.PickSingleFileAsync();
        StorageFile newFile = await Windows.Storage.ApplicationData.Current.LocalFolder.CreateFileAsync(file.Name);
        await file.CopyAndReplaceAsync(newFile);
        this.imageRelativePath = newFile.Path.Substring(newFile.Path.LastIndexOf("\") + 1);

                IWideTileNotificationContent tileContent = null;
                ITileWideImage wideContent = TileContentFactory.CreateTileWideImage();
                wideContent.RequireSquareContent = false;
                wideContent.Image.Src = "ms-appdata:///local/" + this.imageRelativePath;
                wideContent.Image.Alt = "App data";
                tileContent = wideContent;
                tileContent.RequireSquareContent = false;
                TileUpdateManager.CreateTileUpdaterForApplication().Update(tileContent.CreateNotification());
            }
        }

Answer 1

1st 给出图像文件夹的路径, 然后通过 IRead OnlyList 绘制这些图像的列表, 并设置复制图像的循环以结束, 仅在此设置了在 TileUpdateManager 上的计时器, 它将有效。

Answer 2

在 PicturesLibrary 中罗列文件:

// from my sample app "MetroContractSample" http://metrocontractsample.codeplex.com/documentation
var queryOptions = new QueryOptions(CommonFileQuery.DefaultQuery, new[] { ".jpg", ".png", ".bmp", ".gif", }) { FolderDepth = FolderDepth.Deep, };
StorageFileQueryResult query = KnownFolders.PicturesLibrary.CreateFileQueryWithOptions(queryOptions);
var fileInfoFactory = new FileInformationFactory(query, ThumbnailMode.SingleItem);
IReadOnlyList<FileInformation> fileInfoList = await fileInfoFactory.GetFilesAsync();

注意: 您必须声明 PicturesLibrary 在软件包. appxmanifest 中的能力。

友情链接