Question

这是我的代码，我将1个图像从本地文件夹复制到我的应用程序存储文件夹，然后显示磁贴通知。请帮我复制所有图像，然后复制图块通知中显示的这些图像。

namespace Tiles
{
    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

您应该致电.PickSingleFileAsync()，而不是致电.PickMultipleFileAsync()。有关如何获取所有文件名的示例，请参阅PickMultipleFileAsync Docs。

您现在拥有的代码可以复制一个文件并创建一个磁贴，应该通过一个遍历.PickMultipleFileAsync()

返回的所有文件的循环包围

我没有对此进行测试，但它应该看起来像这样：

FilePickerSelectedFilesArray  files = await picker.PickMultipleFileAsync(); 
for (var i = 0; i < files.size; i++) 
{
     StorageFile newFile = await 
             Windows.Storage.ApplicationData.Current.LocalFolder
             .CreateFileAsync(files[1].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()); 
}

复制多个图像并显示图块通知？

1 个答案: