uitableview - 为什么我的代码选择下一个单元格？- UILongPressGestureRecognizer

Question

我正在尝试创建一种选择单元格的方法，以便我可以对其进行编辑。使用当前代码，上升的单元格始终是下一个单元格。而且我的最后一个单元格tableView无法选择。

@objc func handleLongPress(_ longPressGestureRecognizer: UILongPressGestureRecognizer) {
    if longPressGestureRecognizer.state == UIGestureRecognizerState.began {
        let touchPoint = longPressGestureRecognizer.location( in : self.view)
        if let indexPath = tableView.indexPathForRow(at: touchPoint) {
            let context = (UIApplication.shared.delegate as!AppDelegate).persistentContainer.viewContext
            let cell_selected = classements[indexPath.row]
            nomAjouterOutlet.text = cell_selected.nom
            pointAjouterOutlet.text = "\(cell_selected.point)"
            classeAjouterOutlet.text = cell_selected.classe!
            // Context CoreData
            context.delete(cell_selected)
            (UIApplication.shared.delegate as!AppDelegate).saveContext()
            do {
                classements =
                try context.fetch(Tournoi.fetchRequest())
            } catch {
                print("Fetching Failed")
            }
            classementTableView.reloadData()
        }
    }
}
override func viewDidLoad() {
    super.viewDidLoad()
    let longPressGesture: UILongPressGestureRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(ClassementViewController.handleLongPress(_: )))
    longPressGesture.minimumPressDuration = 1.0
    longPressGesture.delegate = self
    self.tableView.addGestureRecognizer(longPressGesture)
}

Answer 1

我发现了我的错误，这是有效的代码！谢谢分享编辑

Swift 4

override func viewDidLoad() {
    super.viewDidLoad()
    setupLongPressGesture()
}

func setupLongPressGesture() {
    let longPressGesture:UILongPressGestureRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(self.handleLongPress))
    longPressGesture.minimumPressDuration = 1.0 // 1 second press
    longPressGesture.delegate = self
    self.tblMessage.addGestureRecognizer(longPressGesture)
}

@objc func handleLongPress(_ gestureRecognizer: UILongPressGestureRecognizer){
    if gestureRecognizer.state == .ended {
        let touchPoint = gestureRecognizer.location(in: self.tblMessage)
        if let indexPath = tblMessage.indexPathForRow(at: touchPoint) {

        }
    }
}

shareedit 于 1 月 18 日 11:05 回答

PinkeshGjr 1,28121225