button水龙头和长按手势

我在手势上有点麻烦

我正在尝试使用同一button上的轻按和长按，所以我使用了

@IBAction func xxx (sender: UITapGestureRecognizer) 

和

 @IBAction func xxx (sender: UILongPressGestureRecognizer) 

但是当我点击时，我的button似乎对这两个function都有反应。 什么可能是错的？

 func long(longpress: UIGestureRecognizer){ if(longpress.state == UIGestureRecognizerState.Ended){ homeScoreBool = !homeScoreBool }else if(longpress.state == UIGestureRecognizerState.Began){ print("began") } } 

Answer 1

很难说什么是你的代码没有工作，只有你提供的两行，但我build议你这样做，而不是：

改为为您的button创build一个sockets

 @IBOutlet weak var myBtn: UIButton! 

并在你的viewDidLoad()添加手势到button

 let tapGesture = UITapGestureRecognizer(target: self, action: "normalTap") let longGesture = UILongPressGestureRecognizer(target: self, action: "longTap:") tapGesture.numberOfTapsRequired = 1 myBtn.addGestureRecognizer(tapGesture) myBtn.addGestureRecognizer(longGesture) 

然后创build操作来处理水龙头

 func normalTap(){ print("Normal tap") } func longTap(sender : UIGestureRecognizer){ print("Long tap") if sender.state == .Ended { print("UIGestureRecognizerStateEnded") //Do Whatever You want on End of Gesture } else if sender.state == .Began { print("UIGestureRecognizerStateBegan.") //Do Whatever You want on Began of Gesture } } 

Swift 3.0版本：

 let tapGesture = UITapGestureRecognizer(target: self, action: #selector(ViewController.normalTap)) let longGesture = UILongPressGestureRecognizer(target: self, action: Selector(("longTap:"))) tapGesture.numberOfTapsRequired = 1 myBtn.addGestureRecognizer(tapGesture) myBtn.addGestureRecognizer(longGesture) func normalTap(){ print("Normal tap") } func longTap(sender : UIGestureRecognizer){ print("Long tap") if sender.state == .ended { print("UIGestureRecognizerStateEnded") //Do Whatever You want on End of Gesture } else if sender.state == .began { print("UIGestureRecognizerStateBegan.") //Do Whatever You want on Began of Gesture } } 

Swift 4.x的语法更新：

 let tapGesture = UITapGestureRecognizer(target: self, action: #selector(normalTap(_:))) tapGesture.numberOfTapsRequired = 1 myBtn.addGestureRecognizer(tapGesture) let longGesture = UILongPressGestureRecognizer(target: self, action: #selector(longTap(_:))) myBtn.addGestureRecognizer(longGesture) @objc func normalTap(_ sender: UIGestureRecognizer){ print("Normal tap") } @objc func longTap(_ sender: UIGestureRecognizer){ print("Long tap") if sender.state == .ended { print("UIGestureRecognizerStateEnded") //Do Whatever You want on End of Gesture } else if sender.state == .began { print("UIGestureRecognizerStateBegan.") //Do Whatever You want on Began of Gesture } }