SegmentedControlTableViewDelegateExample.swift

import UIKit


protocol SegmentedControlTableViewCellDelegate: class {
    func handleSegmentedControlValueChanged(to newValue: Int, inCell: UITableViewCell)
}

class SomeTableViewCellSubclass: UITableViewCell {
    var segmentedCellDelegate: SegmentedControlTableViewCellDelegate?

    @IBAction func valueChangedIn(segmentedControl: UISegmentedControl) {
        segmentedCellDelegate?.handleSegmentedControlValueChanged(to: segmentedControl.selectedSegmentIndex, inCell: self)
    }
}

class YourTableViewControllerSubclass: UITableViewController {
        // Whatever logic you have
}

extension YourTableViewControllerSubclass: SegmentedControlTableViewCellDelegate {
    func handleSegmentedControlValueChanged(to newValue: Int, inCell: UITableViewCell) {
        // Whatever you want to happen in your ViewController
    }
}