sending customCell label text to destination view - swift

Question

I am stuck on this problem. I am downloading a json file from Firebase and successfully displaying in a TableView. That TableView has a custom cell with two labels. I have set up a segue link from the custom cell to a Detail ViewController. That works fine, but now I want to take the text content of the cell labels and send to a destination ViewController.
I have had no trouble doing this in the past, but am having trouble implementing this from the label.text in a custom cell.
I am using label tags (label1 and label2, although I may change that to the label names sometime).
The question is, how do I get the text contents from the two labels from the row selected and pass those to the DetailViewController? All my attempts so far have failed. Is there something I should be doing in the:
valueToPass = currentCell?.textLabel?.text
Here is the code:
struct postStruct {
let property : String!
let propType : String!
}
class TableViewController: UITableViewController {
var posts = [postStruct]()
override func viewDidLoad() {
super.viewDidLoad()
self.tableView.delegate = self
self.tableView.dataSource = self
let databaseRef = FIRDatabase.database().reference()
databaseRef.child("users").queryOrderedByKey().observe(.childAdded, with: {
snapshot in
let snapshotValue = snapshot.value as? NSDictionary
let property = snapshotValue!["property"] as? String
let propType = snapshotValue!["type"] as? String
self.posts.insert(postStruct(property: property, propType: propType), at: 0)
self.tableView.reloadData()
})
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return posts.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell")
let label1 = cell?.viewWithTag(1) as! UILabel
label1.text = posts[indexPath.row].property
let label2 = cell?.viewWithTag(2) as! UILabel
label2.text = posts[indexPath.row].propType
// print(posts)
// cell.setcell(valueToPass.label1)
return cell!
}
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
var valueToPass:String!
func tableView(tableView: UITableView!, didSelectRowAtIndexPath indexPath: NSIndexPath!) {
// Get Cell Label
let indexPath = tableView.indexPathForSelectedRow;
let currentCell = tableView.cellForRow(at: indexPath!) as UITableViewCell!;
valueToPass = currentCell?.textLabel?.text
performSegue(withIdentifier: "detailSegue", sender: self)
}
Any help most welcome, in particular code examples. Many thanks in anticipation

Answer 1

Create a custom class for your tableCell, and attach outlets in the StoryBoard.
the cell creation in cellForRowAt becomes
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell") As! MyCustomCell
cell.label1.text = posts[indexPath.row].property
cell.label2.text = posts[indexPath.row].propType
and then didSelectRowAtIndexPath becomes
let indexPath = tableView.indexPathForSelectedRow
let currentCell = tableView.cellForRow(at: indexPath!) as! MyCustomCell
self.valueToPass = currentCell.label1?.text
performSegue(withIdentifier: "detailSegue", sender: self)
The final thing you need if to prepare for the segue
override func prepare(for segue: UIStoryboardSegue, sender: Any?)
{
if segue.identifier == "detailSegue" // you may have more than one segue, so you should check
{
let destinationController : DestinationViewControllerClass = segue.destination as! DestinationViewControllerClass
destinationController.valueToPass = self.valueToPass
}
}