title: NSMutableArray with file path
body: <p>I have a NSMutableArray of names of files in my app documents folder.
  Now I want to make an array of file paths of those files which have names in the above array.
  How am I gonna do this? I'm having trouble solving this and I couldnt think of any solutions. 
  If you could help, I really appreciate it.
  Thanks a lot in advance.</p>