windows-phone-8 - 如何以编程方式在Windows Phone 8中创建相册文件夹

Question

我已经看到许多有关此主题的问题。所有的答案都说不可能，所有的问题都只能像这样回答。

这是一个Programmatically create a photo album in Windows Phone 8

但是在安装了最新的WhatsApp更新后，它正在我的手机相册中创建一个文件夹。搜索互联网后，我得到了以下URL:http://thegeekybeng.com/2013/12/18/whatsapp-for-windows-phone-get-a-much-needed-update/

.. What's more! Now it's easier to search for the videos and photos you Saved from whatsapp as a new folder simply named “Whatsapp” will be Created in the photo album for you to store all the videos and photos Saved from Whatsapp!...

这怎么可能？

Answer 1

“这怎么可能。”仅当您有权访问不公开的API/其他方式时，才有可能，例如，查看诺基亚的this新闻报道，其中指出

The developers were working with Nokia to produce a version that is properly optimised for the latest Windows Phone platform experience.

这意味着WhatsApp开发人员可以访问一些我们“不值得”开发人员无法访问的内部功能。

这是我能想到的唯一解释。那么，有可能吗？是的，但仅适用于精英人士。

编辑:

在WP8.1中，您可以执行以下操作:

IReadOnlyList<StorageFolder> storageFolderList = await KnownFolders.PicturesLibrary.GetFoldersAsync();
if (storageFolderList.Where(x => x.Name == "FolderName").Count() == 0)
{
    StorageFolder folderCreationResult = await KnownFolders.PicturesLibrary.CreateFolderAsync("FolderName", CreationCollisionOption.ReplaceExisting);
    var messageDialog = new MessageDialog("FolderName has been created", "Folder Created");
    await messageDialog.ShowAsync();
}
else
{
    var messageDialog = new MessageDialog("FolderName already exists.", "Folder Exists");
    await messageDialog.ShowAsync(); 
}