AppDelegate.swift

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
  ...
  
  var URL:NSURL
  var completeFilePath:String
        
  for file in documents {
    completeFilePath = basePath + "/" + file
    URL = NSURL(fileURLWithPath: completeFilePath)
    print(URL)
  }
  
  ...
}