How to perform a segue view from custom UITableViewCell(xib) to another ViewController - ios

Question

I want to show a button on my custom UITableViewCell which takes the user to another screen on tapping on it.
I have tried following code but it doesn't work
Child view:
#IBAction func childScreenButton(sender: AnyObject) {
if let delegate = self.delegate {
delegate.childButtonClickedOnCell(self)
}
}
Protocol:
protocol childTableCellDelegate: class {
func childButtonClickedOnCell(cell: childViewCell)
}
Parent ViewController:
func childButtonClickedOnCell(cell: FeedChildViewCell) {
self.clickedIndexPath = self.feedsTableView.indexPathForCell(cell)
self.performSegueWithIdentifier("toNextScreen", sender: self)
}
while I'm testing the break point doesn't enter into "delegate.childButtonClickedOnCell(self)" on child view. Please let me know if am doing anything wrong here. Thanks!!

Answer 1

I suspect you've got a couple things out of place, or not defined just right.
I just ran a quick test with this, and the delegate call works fine... see if you notice anything not-quite-the-same...
//
// TestTableViewController.swift
//
// Created by DonMag on 4/7/17.
// Copyright © 2017 DonMag. All rights reserved.
//
import UIKit
protocol MyCellDelegate {
func pressedButtonForMyCell(theSender: MyCell)
}
class MyCell: UITableViewCell {
#IBOutlet weak var theLabel: UILabel!
#IBOutlet weak var theButton: UIButton!
var delegate: MyCellDelegate?
#IBAction func childScreenButton(sender: AnyObject) {
delegate?.pressedButtonForMyCell(theSender: self)
}
}
class TestTableViewController: UITableViewController, MyCellDelegate {
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MARK: - Table view data source
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 10
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "myCell", for: indexPath) as! MyCell
cell.theLabel.text = "\(indexPath)"
cell.delegate = self
return cell
}
func pressedButtonForMyCell(theSender: MyCell) {
print("delegate called", theSender)
}
}