Hololens2 (UWP) 创建文件夹与文件

• 在Hololens2开发中，经常会需要创建文件夹与文件，其方式与C# 普通Windows PC 创建方式不同，可以采用如下方式创建文件和文件夹。

• 在“音乐”即"PictureLibrary"文件夹中创建文件，文件是字节流格式：

  private async void CreatFileToPicLibrary(string Filename, byte[] Bytedata)
        {
            StorageFolder storageFolder = await KnownFolders.GetFolderForUserAsync(null /* current user */, KnownFolderId.PicturesLibrary);
            try
            {
                var file = await storageFolder.CreateFileAsync(Filename, CreationCollisionOption.ReplaceExisting);
                FileIO.WriteBytesAsync(file, Bytedata);

            }
            catch (Exception ex)
            {

            }
        }

如果想在里面新建一个文件夹，则可以在改为如下代码：

           private async void CreatFileToPicLibrary(string Filename, byte[] Bytedata)
        {
            StorageFolder storageFolder = await KnownFolders.GetFolderForUserAsync(null /* current user */, KnownFolderId.PicturesLibrary);
            StorageFolder storageFolder2 = await storageFolder.CreateFolderAsync("intric");
            try
            {
                var file = await storageFolder2.CreateFileAsync(Filename, CreationCollisionOption.ReplaceExisting);
                FileIO.WriteBytesAsync(file, Bytedata);

            }
            catch (Exception ex)
            {

            }
        }

• 新建文件需要添加权限：
  

-或者直接打开 Package.appxmanifest文件，添加如下代码即可：