UIImagePickerController를 이용한 사진불러오기

 
import UIKit
 
class ViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
 
    @IBAction func imgSelect(sender: AnyObject) {
        
        let picker = UIImagePickerController()
        
        picker.sourceType = UIImagePickerControllerSourceType.PhotoLibrary
        
        picker.allowsEditing = true
        
        picker.delegate = self
        
        self.presentViewController(picker, animated: false, completion: nil)
    }
    
 
    @IBOutlet var imgView: UIImageView!
  
    func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
        picker.dismissViewControllerAnimated(false, completion: nil)
        
        self.imgView.image =  info[UIImagePickerControllerOriginalImage] as? UIImage
    }
    
    func imagePickerControllerDidCancel(picker: UIImagePickerController) {
        picker.dismissViewControllerAnimated(false, completion: nil)
        
        let alert = UIAlertController(title: "", message: "이미지 선택이 취소되었습니다.", preferredStyle: .Alert)
        
        alert.addAction(UIAlertAction(title: "확인", style: .Cancel, handler: nil))
        
        self.presentViewController(alert, animated: false, completion: nil)
    }
    
}