I am looking to pass data from a UITableView to a UIViewController through a UINavigationController. Here is my storyboard:
EDIT1: My delegate doesn't seem to be working
My registration class:
class RegisterViewController: UIViewController, UniSnapshotProtocol {
@IBOutlet var registerName: UITextField!
@IBOutlet var registerEmail: UITextField!
@IBOutlet var registerPassword: UITextField!
@IBOutlet var registerConfirmPassword: UITextField!
//conforming to protocol we will need the same function listed in the protocol of the other other page.
var univSnapshotFromUnivTableViewController:FIRDataSnapshot!
func sendBackUnivSnapshot(univSnapshot:FIRDataSnapshot){
print("Print if delegate works correctly")
self.univSnapshotFromUnivTableViewController = univSnapshot
}
override func viewDidLoad() {
super.viewDidLoad()
//lets see if we get information back from the UITableViewController
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(true)
if let univSnapshot = univSnapshotFromUnivTableViewController{
print("Something came through")
print(univSnapshot)
}else{
print("Nothing came through from delegate\n")
}
}
}
//This is how to go to my `tableViewController` by clicking on one of the `UITextField`:
@IBAction func selectUsers(_ sender: UITextField) {
moveToUnivTableView()
}
func moveToUnivTableView() {
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let profileView = storyboard.instantiateViewController(withIdentifier:"univNavigationController") as! UINavigationController
profileView.delegate? = self as! UINavigationControllerDelegate
self.present(profileView, animated:true, completion:nil)
}
My 'UITableViewController' class:
//passing data back to the registration page
protocol UniSnapshotProtocol{
func sendBackUnivSnapshot(univSnapshot:FIRDataSnapshot)
}
class UnivTableViewController: UITableViewController,UISearchResultsUpdating {
var delegate:UniSnapshotProtocol!
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
//send the information back as delegate
self.univDatabase.removeAllObservers()//need to remove all observers else on dismiss it overwrites the array so nothing to send back
cellRow = indexPath.row
// print(self.snapshotArray[indexPath.row])
self.dismiss(animated: false, completion: nil)//dismisses the focused cells without animation
self.navigationController?.dismiss(animated: true, completion: {self.fireAuth.currentUser?.delete(completion: nil)})
}
//from once the view is dismissed from clicking a cell the delegate should be able to run the function in UIView Controller.
func viewWillDisappear(animated: Bool) {
super.viewWillDisappear(animated)
if self.isBeingDismissed {
self.delegate?.sendBackUnivSnapshot(univSnapshot: self.snapshotArray[cellRow] )
}
}
}
What is the solution to come back to the registration page with some data from the UITableViewController in Swift?
