IOS UITapGestureRecognizer 双击手势

 1 override func viewDidLoad() {
 2 super.viewDidLoad()
 3 // Do any additional setup after loading the view,
 typically from a nib.
 4 let rect = CGRect(x：0, y：80, width：320, height：
 5 self.imageView = UIImageView(frame：rect)
 6
 7 let image = UIImage(named：“lock”)
 8 imageView.image = image
 9
 10 imageView.isUserInteractionEnabled = true
 11 self.view.addSubview(self.imageView)
 12
 13 let guesture = UITapGestureRecognizer(target：self,
 action：#selector(ViewController.doubleTap))
 14 guesture.numberOfTapsRequired = 2
 15 guesture.numberOfTouchesRequired = 1
 16 imageView.addGestureRecognizer(guesture)
 17 }
//numberOfTapsRequired  点击两次
 //numberOfTouchesRequired  1根手指