obtenir indexPath de UITableViewCell sur le clic du Bouton de la Cellule

Utiliser Des Délégués:

MyCell.swift:

import UIKit

//1. delegate method
protocol MyCellDelegate: AnyObject {
    func btnCloseTapped(cell: MyCell)
}

class MyCell: UICollectionViewCell {
    @IBOutlet var btnClose: UIButton!

    //2. create delegate variable
    weak var delegate: MyCellDelegate?

    //3. assign this action to close button
    @IBAction func btnCloseTapped(sender: AnyObject) {
        //4. call delegate method
        //check delegate is not nil with `?`
        delegate?.btnCloseTapped(cell: self)
    }
}

MyViewController.swift:

//5. Conform to delegate method
class MyViewController: UIViewController, MyCellDelegate, UITableViewDataSource,UITableViewDelegate {

    //6. Implement Delegate Method
    func btnCloseTapped(cell: MyCell) {
        //Get the indexpath of cell where button was tapped
        let indexPath = self.collectionView.indexPathForCell(cell)
        print(indexPath!.row)
    }

    func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {

        let cell = tableView.dequeueReusableCellWithIdentifier("MyCell") as! MyCell
        //7. delegate view controller instance to the cell
        cell.delegate = self

        return cell
    }
}

OriginalL'auteur Bista

Vous pouvez également obtenir NSIndexPath de CGPoint de cette façon:

@IBAction func closeImageButtonPressed(sender: AnyObject) {
    var buttonPosition = sender.convertPoint(CGPointZero, to: self.tableView)
    var indexPath = self.tableView.indexPathForRow(atPoint: buttonPosition)!
}

OriginalL'auteur Bhavin Ramani

//
// ViewController.swift
// Table
//
// Created by Ngugi Nduung'u on 24/08/2017.
// Copyright © 2017 Ngugi Ndung'u. All rights reserved.
//

import UIKit
class ViewController: UITableViewController{
let identifier = "cellId"
var items = ["item1", "2", "3"]
override func viewDidLoad() {
super.viewDidLoad()
//Do any additional setup after loading the view, typically from a nib.
        self.title = "Table"
tableView.register(MyClass.self, forCellReuseIdentifier: "cellId")
}
//Return number of cells you need
    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int{
return items.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cellId", for: indexPath) as! MyClass
cell.controller = self
cell.label.text  = items[indexPath.row]
return cell
}
//Delete a cell when delete button on cell is clicked 
    func delete(cell: UITableViewCell){
print("delete")
if let deletePath = tableView.indexPath(for: cell){
items.remove(at: deletePath.row)
tableView.deleteRows(at: [deletePath], with: .automatic)
}
}
}
class MyClass : UITableViewCell{
var controller : ViewController?
override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
setUpViews()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
fatalError("init(coder:) has not been implemented")
}
let label : UILabel = {
let label = UILabel()
label.text = "My very first cell"
label.translatesAutoresizingMaskIntoConstraints = false
return label
}()
let btn : UIButton = {
let bt = UIButton(type: .system)
bt.translatesAutoresizingMaskIntoConstraints = false
bt.setTitle("Delete", for: .normal)
bt.setTitleColor(.red, for: .normal)
return bt
}()
func handleDelete(){
controller?.delete(cell: self)
}
func setUpViews(){
addSubview(label)
addSubview(btn)
btn.addTarget(self, action: #selector(MyClass.handleDelete), for: .touchUpInside)
btn.rightAnchor.constraint(equalTo: self.rightAnchor).isActive = true
label.leftAnchor.constraint(equalTo: self.leftAnchor, constant: 16).isActive = true
label.widthAnchor.constraint(equalTo: self.widthAnchor , multiplier: 0.8).isActive = true
label.rightAnchor.constraint(equalTo: btn.leftAnchor).isActive = true
}
}

Voici un exemple complet qui répondra à votre question.

OriginalL'auteur Sam Ngugi

essayez ceci:

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
var cell = (tableView.dequeueReusableCell(withIdentifier: "MainViewCell", forIndexPath: indexPath) as! MainTableViewCell)
cell.myButton().addTarget(self, action: Selector("myClickEvent:event:"), forControlEvents: .touchUpInside)
return cell
}

cette fonction obtenir la position de la ligne sur

@IBAction func myClickEvent(_ sender: Any, event: Any) {
var touches = event.allTouches()!
var touch = touches.first!
var currentTouchPosition = touch.location(inView: feedsList)
var indexPath = feedsList.indexPathForRow(atPoint: currentTouchPosition)!
print("position:\(indexPath.row)")
}

OriginalL'auteur Prashant Sharma

Essayer avec la meilleure utilisation de swift fermetures : Simple, Rapide & Facile.

Dans cellForRowAtIndexPath méthode:

let cell = tableView.dequeueReusableCell(withIdentifier: "CustomCellIdentifier", for: indexPath) as! CustomCell
cell.btnTick.mk_addTapHandler { (btn) in
print("You can use here also directly : \(indexPath.row)")
self.btnTapped(btn: btn, indexPath: indexPath)
}

Sélecteur de Méthode pour l'usage externe de cellForRowAtIndexPath méthode:

func btnTapped(btn:UIButton, indexPath:IndexPath) {
print("IndexPath : \(indexPath.row)")
}

Extension pour UIButton :

extension UIButton {
private class Action {
var action: (UIButton) -> Void
init(action: @escaping (UIButton) -> Void) {
self.action = action
}
}
private struct AssociatedKeys {
static var ActionTapped = "actionTapped"
}
private var tapAction: Action? {
set { objc_setAssociatedObject(self, &AssociatedKeys.ActionTapped, newValue, .OBJC_ASSOCIATION_RETAIN) }
get { return objc_getAssociatedObject(self, &AssociatedKeys.ActionTapped) as? Action }
}
@objc dynamic private func handleAction(_ recognizer: UIButton) {
tapAction?.action(recognizer)
}
func mk_addTapHandler(action: @escaping (UIButton) -> Void) {
self.addTarget(self, action: #selector(handleAction(_:)), for: .touchUpInside)
tapAction = Action(action: action)
}
}

OriginalL'auteur Mushrankhan