Correct way to publish model to delegated view? - ios

Question

I have a UITableViewController which provides an array of strings as data source:
import UIKit
class ItemsViewController: UITableViewController {
let items = [
"Bob",
"Joe",
]
#IBAction
func unwindToSegue(segue: UIStoryboardSegue) {
}
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return items.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("Item", forIndexPath: indexPath) as UITableViewCell
cell.textLabel.text = items[indexPath.row]
return cell
}
}
I now added a second scene with a UIViewController which is activated when the user clicks on a UITableCell through a show segue.
I would now like to take the string assigned with the former UITableCell and inserted into the ItemViewController:
import UIKit
class ItemViewController: UIViewController {
#IBOutlet
weak var nameLabel: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
override func override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
//var name = segue.someMethodHowIGetTheDataAssignedToTableCell
//nameLabel.text = name
}
}
How do I pass the model (in this case the string) assigned to the single TableCell over to the new ItemViewController?

Answer 1

Like this. Just add a return push segue from ItemViewController back to ItemsViewController. Name them less similar in the future :-)
import UIKit
class ItemsViewController: UITableViewController {
let items = [
"Bob",
"Joe",
]
#IBAction
func unwindToSegue(segue: UIStoryboardSegue) {
}
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return items.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("Item", forIndexPath: indexPath) as UITableViewCell
cell.textLabel.text = items[indexPath.row]
return cell
}
//Passing details to detail VC
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
let indexPath = self.tableView.indexPathForSelectedRow()
let theDestination = (segue.destinationViewController as ItemViewController)
theDestination.itemName = items[indexPath!.row]
}
}
import UIKit
class ItemViewController: UIViewController {
#IBOutlet weak var nameLabel: UILabel!
var itemName = ""
override func viewDidLoad() {
super.viewDidLoad()
nameLabel.text = itemName
}
}