NSFileManager delete contents of directory

Question

How do you delete all the contents of a directory without deleting the directory itself? I want to basically empty a folder yet leave it (and the permissions) intact.

Answer 1

Georg Fritzsche answer for Swift did not work for me. Instead of reading the enumerated object as a String, read it as NSURL.

let fileManager = NSFileManager.defaultManager()
let url = NSURL(string: "foo/bar")
let enumerator = fileManager.enumeratorAtURL(url, includingPropertiesForKeys: nil, options: nil, errorHandler: nil)
while let file = enumerator?.nextObject() as? NSURL {
    fileManager.removeItemAtURL(file, error: nil)
}