Sigabrt Error-UIGestureRecognizer programmatisch

Question

Derzeit versuche ich eine Wischgeste nach oben und unten zu Zellen in meiner UICollectionView hinzufügen, um bestimmte Aktionen durchzuführen. Ich habe das alles programmatisch gemacht, aber ich werde sigabrt. Irgendwelche Vorschläge? Hier

class TableViewCell: UITableViewCell, UICollectionViewDataSource, UICollectionViewDelegate { 

    var collectionView: UICollectionView! 
    var cellTextLabel: UILabel! 




    override init(style: UITableViewCellStyle, reuseIdentifier: String?) { 
     super.init(style: style, reuseIdentifier: reuseIdentifier) 


     let layout = UICollectionViewFlowLayout() 
     layout.scrollDirection = UICollectionViewScrollDirection.horizontal 
     layout.itemSize = CGSize(width: 90, height: 90) 
     collectionView = UICollectionView(frame: self.bounds, collectionViewLayout: layout) 

     collectionView.delegate = self 
     collectionView.dataSource = self 
     collectionView.register(UICollectionViewCell.self, forCellWithReuseIdentifier: "CollectionViewCell") 

     collectionView.backgroundColor = UIColor(red: 34.0/255.0, green: 40.0/255.0, blue: 51.0/255.0, alpha: 1.0) 
     collectionView.frame.size.height = 120 
     collectionView.frame.size.width = 500 
     self.addSubview(collectionView) 


    } 

    required init(coder aDecoder: NSCoder) { 
     super.init(coder: aDecoder)! 
    } 

    func numberOfSectionsInCollectionView(collectionView: UICollectionView) -> Int { 
     return 1 
    } 


    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { 
     return 10 
    } 

    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { 




     var arrayOfReviewVocab = ["衣服" + "\n" + "clothes", "学校" + "\n" + "school", "你好" + "\n" + "hello", "书" + "\n" + "books", "5", "6", "7", "8", "9", "10"] 

     let cell: UICollectionViewCell = collectionView.dequeueReusableCell(withReuseIdentifier: "CollectionViewCell", for: indexPath) as! UICollectionViewCell 

     cell.backgroundColor = UIColor(red: 30.0/255.0, green: 35.0/255.0, blue: 46.0/255.0, alpha: 1.0) 

     cellTextLabel = UILabel(frame: CGRect(x: 20 , y: -20, width: frame.size.width, height: frame.size.height)) 
     cell.contentView.addSubview(cellTextLabel!) 
     cellTextLabel.textColor = UIColor.white 
     cellTextLabel.text = arrayOfReviewVocab[indexPath.row] 
     cellTextLabel.numberOfLines = 0 

     var swipeUp = UISwipeGestureRecognizer(target: cell, action: "handleSwipeGesture:") 
     swipeUp.direction = .up 
     cell.addGestureRecognizer(swipeUp) 

     var swipeDown = UISwipeGestureRecognizer(target: cell, action: "handleSwipeGesture:") 
     swipeDown.direction = UISwipeGestureRecognizerDirection.down 
     cell.addGestureRecognizer(swipeDown) 
     return cell 
    } 

    func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize { 
     return CGSize(width: 200, height: 200); 
    } 



    func handleSwipeGesture(gesture: UISwipeGestureRecognizer) 
    { 


     if(gesture.direction == .up) 
     { 
      print("up") 
     } 

     if (gesture.direction == .down) 
     { 
      print("down") 
     } 

    } 

} 

ist die Fehlermeldung:

[UICollectionViewCell handleSwipeGesture:]: unrecognized selector sent to instance 0x7fd2fb61ee20 

Answer 1

Sie sollten Ziel gesetzt: self Ziel nicht: Zelle, wenn Methode handleSwipeGesture: ist in der Klasse TableViewCell

var swipeDown = UISwipeGestureRecognizer(target: self, action: "handleSwipeGesture:") 

Answer 2

var swipeUp = UISwipeGestureRecognizer(target: self, action: #selector(self. handleSwipeGesture)) 
swipeleft.direction = .Up 
cell!.addGestureRecognizer(swipeUp) 

Same wie für Down.

Glückliche Kodierung.