Segue not getting selected row number

ios8, segue, swift, xcode6

Solution

The best way to do this kind of thing is not to use the delegate.

Updated Swift 4+

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    let selectedIndex = tableView.indexPath(for: sender as! UITableViewCell)
    // Do your stuff with selectedIndex.row as the index
}

Original Answer

override func prepareForSegue(segue: UIStoryboardSegue!, sender: AnyObject!) {
    let selectedIndex = self.tableView.indexPathForCell(sender as UITableViewCell)
    // Do your stuff with selectedIndex.row as the index
}

Problem

I am passing data from a table view controller to a detail view. I tried using `indexPath.row` directly in my `prepareForSegue` method, however it displays an error of use of unresolved identifier 'indexPath' So, after searching the web, I set up the variable `indexOfSelectedPerson` which is assigned the value of `indexPath.row`. The problem when I run the app in the simulator is that prepareForSegue is getting the initial value of `indexOfSelectedPerson` (0), then getting the value of the selected row only after I click it. So, when I hit the back button in the Simulator and select a different row, the detail view shows the info of the row I selected the previous time. ``` import UIKit class MasterTableViewController: UITableViewController { var people = [] var indexOfSelectedPerson = 0 override func viewDidLoad() { super.viewDidLoad() people = ["Bob", "Doug", "Jill"] } override func numberOfSectionsInTableView(tableView: UITableView?) -> Int { return 1 } override func tableView(tableView: UITableView?, numberOfRowsInSection section: Int) -> Int { return people.count } override func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath!) -> UITableViewCell! { let cell = tableView!.dequeueReusableCellWithIdentifier("personCell", forIndexPath: indexPath) as UITableViewCell cell.text = "\(people[indexPath.row])" return cell } override func tableView(tableView: UITableView!, didSelectRowAtIndexPath indexPath: NSIndexPath!) { indexOfSelectedPerson = indexPath.row } override func prepareForSegue(segue: UIStoryboardSegue!, sender: AnyObject!) { if let mySegue = segue.identifier { if mySegue == "personDetails" { let detailsVC: DetailTableViewController = segue.destinationViewController as DetailTableViewController detailsVC.selectedPersonName = "\(people[indexOfSelectedPerson])" } } } } ``` So, selecting Doug when the app first starts in the simulator displays the details for Bob because `indexPathOfSelectedPerson` is 0. Hitting the back button and then selecting Jill displays the details for Doug because `indexPathOfSelectedPerson` became 1 when I clicked on Doug the previous time. I'm guessing the problem stems from the order in which the methods are called.

Original source