Swift + Pick Image From Photo Library Using UIImagePickerController

First Add and Import MobileCoreServices Framework.

Confirm to UIImagePickerControllerDelegate & UINavigationControllerDelegate protocol

import UIKit

import MobileCoreServices

class ViewController: UIViewController, UIImagePickerControllerDelegate, UIAlertViewDelegate, UINavigationControllerDelegate

{

    var cameraUI: UIImagePickerController! = UIImagePickerController()

    

    

    override func viewDidLoad()

    {

        super.viewDidLoad()

    }

    override func didReceiveMemoryWarning()

    {

        super.didReceiveMemoryWarning()

        

    }

    //--- Take Photo from Photo Library ---//

    @IBAction func takePhotoFromPhotoLibrary(sender: AnyObject)

    {

          self.presentLibrary()

    }

    func presentLibrary()

    {

       

        if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.PhotoLibrary)

        {

            cameraUI = UIImagePickerController()

            cameraUI.delegate = self

            cameraUI.sourceType = UIImagePickerControllerSourceType.PhotoLibrary;

            cameraUI.mediaTypes = [kUTTypeImage]

            cameraUI.allowsEditing = false

            

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

        }

        else

        {

            // error msg

        }

    }

    

    //Mark- UIImagePickerController Delegate

    

    func imagePickerControllerDidCancel(picker:UIImagePickerController)

    {

        self.dismissViewControllerAnimated(true, completion: nil)

    }

    

    func imagePickerController(picker:UIImagePickerController!, didFinishPickingMediaWithInfo info:NSDictionary)

    {

       if(picker.sourceType == UIImagePickerControllerSourceType.PhotoLibrary)

        {

            var selectedImage: UIImage = info[UIImagePickerControllerOriginalImage] as UIImage

            

            //show Image on Image View and do other stuf that you want

            

            self.dismissViewControllerAnimated(true, completion: nil)

        }

       

    }

 


 
}