Keo tha buc anh

//
//  ViewController.swift
//  Learn Gesture
//
//  Created by Thieu Mao on 12/17/16.
//  Copyright © 2016 thieumao. All rights reserved.
//

import UIKit

class ViewController: UIViewController {

    @IBOutlet weak var myImage: UIImageView!

    override func viewDidLoad() {
        super.viewDidLoad()
        let pan = UIPanGestureRecognizer(target: self, action: #selector(self.panAction(sender:)))
        self.myImage.addGestureRecognizer(pan)
    }

    @IBAction func panAction(sender: UIPanGestureRecognizer) {
        let translate = sender.translation(in: self.view)
        sender.view!.center = CGPoint(x:sender.view!.center.x + translate.x, y:sender.view!.center.y + translate.y)
        sender.setTranslation(CGPoint.zero, in: self.view)
    }

}