iOS How to add a file n iCloud to an array?

[iosmike]

In my app I need to pick a file from iCloud and put it in an array. But I have no idea how to grab the file picked. Please see my code below and help to finish. Thank you for your time!
For iCloud, I picked key-value storage and iCould Documents

import UIKit

import MobileCoreServices


extensionViewController: UIDocumentMenuDelegate {

    func documentMenu(documentMenu: UIDocumentMenuViewController, didPickDocumentPicker documentPicker: UIDocumentPickerViewController) {

        self.presentViewController(documentPicker, animated: true, completion: nil)
    }

}



class ViewController: UIViewController  {


    var documents = [AnyObject]()

    overridefunc viewDidLoad() {

        super.viewDidLoad()

    }


    @IBActionfunc addDocuments(sender: AnyObject) {

    

        let importMenu = UIDocumentMenuViewController(documentTypes: [kUTTypeTextasString, kUTTypePDFasString], inMode: .Import)

    

        importMenu.delegate = self

    

        self.presentViewController(importMenu, animated: true, completion: nil)

    

    }



    func documentPicker(controller: UIDocumentPickerViewController, didPickDocumentAtURL url: NSURL) {

    

    

        let document = How to get the file here?

    

        documents.append(document)



      }


}