已经完成了单击识别器,但无法弄清楚如何将该单击识别器改为双击.

代码：

import Foundationimport UIKit class MainBoardController: UIViewController{ let tap = UITapGestureRecognizer() override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view,typically from a nib. var swipe: UISwipeGestureRecognizer = UISwipeGestureRecognizer(target: self,action: "GotoProfile") swipe.direction = UISwipeGestureRecognizerDirection.Right self.view.addGestureRecognizer(swipe) tap.addTarget(self,action: "GotoCamera") view.userInteractionEnabled = true view.addGestureRecognizer(tap) } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() // Dispose of any resources that can be recreated. } func GotoProfile(){ self.performSegueWithIdentifier("Profilesegue",sender: nil) } func GotoCamera(){ self.performSegueWithIdentifier("Camerasegue",sender: nil) }}

解决方法

最终用扩展解决了这个问题：

override func viewDidLoad() { super.viewDidLoad() let tapGR = UITapGestureRecognizer(target: self,action: #selector(PostlistViewController.handleTap(_:))) tapGR.delegate = self tapGR.numberOfTapsRequired = 2 view.addGestureRecognizer(tapGR)}extension MainBoardController: UIGestureRecognizerDelegate { func handleTap(_ gesture: UITapGestureRecognizer){ print("doubletapped") }}

总结

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