Observe a File or Folder in Objective-C

Question

What is the best way to listen to a folder or file to see if it has been saved or if a new file has been added?

Answer 1

Not sure what's the best way, but A way would be to fire up an NSThread that would regularly (for instance every second) check the creation dates of the files in the directory, and then have a delegate associated with that thread to perform some action when a new file has been added