I want user to access iCould to pick documents. But in my simulator the iCould Drive is always empty. I already clicked Simulator - Debug - Trigger iCould sync after logged in when the app was running. So I want to know if something wrong with my code. Please help to check. Thank you for your time!
	
	
	
		
	
		
			
		
		
	
				
			
		Code:
	
	import UIKit
import MobileCoreServices
extensionViewController: UIDocumentMenuDelegate {
    func documentMenu(documentMenu: UIDocumentMenuViewController, didPickDocumentPicker documentPicker: UIDocumentPickerViewController) {
     
     
        self.presentViewController(documentPicker, animated: true, completion: nil)
     
    }
}
extensionViewController: UIDocumentPickerDelegate {
 
    func documentPicker(controller: UIDocumentPickerViewController, didPickDocumentAtURL url: NSURL) {
     
     
        print("pick document succeeded")
     
    }
 
}
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)
     
     
    }
 
 
 
 
}