沙盒应用程序：检索文件夹大小（MB / GB）

Question

I would like to find the size of a given path in MB/GB. I have tried before with NSFileManager but every result would turn out zero because of the app sandboxing (frustrating). Is there a method which works? I want to find the size of a hidden folder.

Thanks in advance.

Answer 1

Is it a path where you don't have access to by default, like user's home folder? Then you need to request access to it from the user by showing her standard open dialog (NSPanel). If you want to retain this access between launches, you need to generate and store security-scoped bookmark to that location.