UIPanGestureRecognizerとUISwipeGestureRecognizer（上と下）を扱う方法

Question

iPhoneの画面のように表示する必要があります（これは正確ではありませんが、スワイプの上下動とUIPanestureのジェスチャーを行います）。 こちらのコードをご覧ください。私はPangestureを働かせるだけで、私は両方の仕事をする必要がありましたか？ see screen shot

override func viewDidLoad() { 
    super.viewDidLoad() 
    // Do any additional setup after loading the view, typically from a nib. 

    let pan = UIPanGestureRecognizer(target:self, action:#selector(ViewController.handlePan(sender:))) 
    pan.maximumNumberOfTouches = 1 
    pan.minimumNumberOfTouches = 1 
    slideView.addGestureRecognizer(pan) 

    let swipeUp = UISwipeGestureRecognizer(target: self, action: #selector(ViewController.respondToSwipeGesture(gesture:))) 
    swipeUp.direction = UISwipeGestureRecognizerDirection.up 
    slideView.addGestureRecognizer(swipeUp) 

    let swipeDown = UISwipeGestureRecognizer(target: self, action: #selector(ViewController.respondToSwipeGesture(gesture:))) 
    swipeDown.direction = UISwipeGestureRecognizerDirection.down 
    slideView.addGestureRecognizer(swipeDown) 
    print(self.slideView.frame.origin.y) 

} 
func gestureRecognizer(gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWithGestureRecognizer otherGestureRecognizer: UIGestureRecognizer) -> Bool { 
    return true 
} 
@IBAction func respondToSwipeGesture(gesture: UIGestureRecognizer) { 

    if let swipeGesture = gesture as? UISwipeGestureRecognizer { 


     switch swipeGesture.direction { 
     case UISwipeGestureRecognizerDirection.right: 
      print("Swiped right") 
     case UISwipeGestureRecognizerDirection.down: 
      print("Swiped down") 
      animateSlideView() 
     case UISwipeGestureRecognizerDirection.left: 
      print("Swiped left") 
     case UISwipeGestureRecognizerDirection.up: 
      print("Swiped up") 
      animateSlideView() 
     default: 
      break 
     } 
    } 
} 



@IBAction func slideView(_ sender: Any) { 

    animateSlideView() 

} 

func animateSlideView(){ 
    UIView.animate(withDuration: 0.7, animations: { 
     if self.toggleTop == true{ 
      self.toggleTop = false 
      self.slideView.frame = CGRect(x: 0, y: 670, width: self.slideView.frame.size.width, height: self.slideView.frame.size.height) 
     }else { 
      self.toggleTop = true 
      self.slideView.frame = CGRect(x: 0, y: 150, width: self.slideView.frame.size.width, height: self.slideView.frame.size.height) // CGRectMake(0, 670, self.slideView.frame.size.width, self.slideView.frame.size.height) 
     } 
     self.slideView.layoutIfNeeded() 
    }) 
} 
override func didReceiveMemoryWarning() { 
    super.didReceiveMemoryWarning() 
    // Dispose of any resources that can be recreated. 
} 


@IBAction func handlePan(sender: UIPanGestureRecognizer) { 
    var touchPointOffset:CGPoint = CGPoint(x: 0, y: 0) 
    let vel = sender.velocity(in: self.view) 
    //print(vel.y) 
    print(sender.location(in: slideView).y) 
    let actualPosition = sender.view!.center.y - 319.0 
    let translation = sender.translation(in: self.view) 
    // [gestureRecognizer locationInView:self.panelViewController.view].y < 
    if (sender.state == .began || sender.state == .changed) { 
     if actualPosition > 670 { 

     } else if actualPosition < 150 { 

     } else{ 
      sender.view!.center = CGPoint(x: sender.view!.center.x , y: sender.view!.center.y + translation.y) 
     } 
     touchPointOffset = sender.location(in: slideView) 
     //self.touchPointOffset = sender.location(in: slideView) //[gestureRecognizer locationInView:self.panelViewController.view]; 
    }else if sender.state == .cancelled{ 
     print("canceled") 
    }else if sender.state == .ended{ 
     print(sender.location(in: slideView).y) 
     //print(vel.y) 
     touchPointOffset = CGPoint(x: 0, y: 0) 
     if (vel.y > 0.0) { 
      if actualPosition >= 670 || actualPosition >= UIScreen.main.bounds.height/2.0 { 
       UIView.animate(withDuration: 0.7, animations: { 
        self.toggleTop = false 
        sender.view!.center = CGPoint(x: sender.view!.center.x , y: 989.0) 
        self.slideView.layoutIfNeeded() 
       }) 

      }else if actualPosition <= 150 || actualPosition <= UIScreen.main.bounds.height/2.0{ 
       UIView.animate(withDuration: 0.7, animations: { 
        self.toggleTop = true 
        sender.view!.center = CGPoint(x: sender.view!.center.x , y: 469.0) 
        self.slideView.layoutIfNeeded() 
       }) 

      } 
     } 

     //print(vel.y) 

    } 

    sender.setTranslation(CGPoint(x: 0,y :0), in: self.view) 
} 

Answer 1

あなたはUIGestureRecognizerDelegateからshouldRecognizeSimultaneouslyWithGestureRecognizerデリゲートメソッドを使用しているが、あなたはそのデリゲートに適合するようにセットアップあなたのViewControllerをしたかのようにそれはいないようです。まず：

class ViewController: UIViewController, UIGestureRecognizerDelegate { 

} 

次に作る必要UIGestureRecogniersためdelegateプロパティは（あなたのViewControllerのため）selfに設定されていると同時に認識されていることを確認してください：

override func viewDidLoad() { 
    super.viewDidLoad() 

    let pan = UIPanGestureRecognizer(target:self, action:#selector(ViewController.handlePan(sender:))) 
    pan.delegate = self  // HERE - for the delegate 
    pan.maximumNumberOfTouches = 1 
    pan.minimumNumberOfTouches = 1 
    slideView.addGestureRecognizer(pan) 

    let swipeUp = UISwipeGestureRecognizer(target: self, action: #selector(ViewController.respondToSwipeGesture(gesture:))) 
    swipeUp.delegate = self  // HERE - for the delegate 
    swipeUp.direction = UISwipeGestureRecognizerDirection.up 
    slideView.addGestureRecognizer(swipeUp) 

    let swipeDown = UISwipeGestureRecognizer(target: self, action: #selector(ViewController.respondToSwipeGesture(gesture:))) 
    swipeDown.delegate = self  // HERE - for the delegate 
    swipeDown.direction = UISwipeGestureRecognizerDirection.down 
    slideView.addGestureRecognizer(swipeDown) 
    print(self.slideView.frame.origin.y) 

}