How to pass the data from table view to another view controller - ios

Question

Im a newbie in Swift Language.. i want to pass the price from Table View controller to Payment View controller
Here my code for table view controller
import UIKit
class MainMenuViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
let labeltitle = ["ADLV Black Tee", "ASSC Black Hoodie", "CDG Play Gold Black Tee"]
let labelprice = [("RM 250"), ("RM 305"), ("RM 418")]
let myImage = [UIImage(named: "adlv1"), UIImage(named: "assc"), UIImage(named: "cdg1")]
#IBOutlet weak var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
tableView.delegate = self
tableView.dataSource = self
}
//here got error
override func prepare(for segue: UIStoryboardSegue, sender: (Any)?){
var DestinationViewController : PaymentViewController = segue.destination as! PaymentViewController
if let lText = labelprice.text {
DestinationViewController.price = lText
}
}
#IBAction func BuyNowbutton(_ sender: Any) {
}
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return labeltitle.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! MainMenuTableViewCell
cell.label11?.text = labeltitle[indexPath.row]
cell.label2?.text = labelprice[indexPath.row]
cell.myImage.image = self.myImage[indexPath.row]
return cell
}
}
Here my Payment view controller
import UIKit
class PaymentViewController: UIViewController {
var items = [item]()
var price : String = ""
#IBOutlet weak var paymentdetails: UILabel!
#IBOutlet weak var cardnametextfield: UITextField!
#IBOutlet weak var validthrutextfield: UITextField!
#IBOutlet weak var cardnumbertextfield: UITextField!
#IBOutlet weak var cvcnumbertextfield: UITextField!
#IBOutlet weak var labelprice: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
labelprice.text = price
// Do any additional setup after loading the view.
}
#IBAction func paybutton(_ sender: Any) {
if cardnametextfield.text == "" {
alertMessage(titleInput: "Error, Payment Unsuccessful!", messageInput: "Please Fill all the fields")
} else if validthrutextfield.text == "" {
alertMessage(titleInput: "Error, Payment Unsuccessful!", messageInput: "Please Fill all the fields")
} else if cardnumbertextfield.text == "" {
alertMessage(titleInput: "Error, Payment Unsuccessful!", messageInput: "Please Fill all the fields")
} else if cardnumbertextfield.text == "" {
alertMessage(titleInput: "Error, Payment Unsuccessful!", messageInput: "Please Fill all the fields")
} else {
alertMessage(titleInput: "Success!", messageInput: "Payment Successful!")
self.transitionToHomePage()
}
}
func alertMessage(titleInput: String, messageInput: String){
let alert = UIAlertController(title: titleInput, message: messageInput, preferredStyle: UIAlertController.Style.alert)
let paybutton = UIAlertAction(title: "OK", style: UIAlertAction.Style.default, handler: nil)
alert.addAction(paybutton)
self.present(alert, animated: true, completion: nil)
}
func transitionToHomePage(){
let TabHomeViewController = storyboard?.instantiateViewController(identifier: Constrants.Storyboard.TabHomeViewController) as? UITabBarController
view.window?.rootViewController = TabHomeViewController
view.window?.makeKeyAndVisible()
}
}

Answer 1

First you should make a struct
struct Item {
let title,price,imageName:String
}
instead of the 3 arrays make 1
var arr = [Item]()
and fill it
Second
override func prepare(for segue: UIStoryboardSegue, sender: (Any)?){
var des = segue.destination as! PaymentViewController
if let row = tableView.indexPathForSelectedRow?.row {
des.price = arr[row].price
}
}
Finally connect the segue from the tableView not from the cell and dragged it to the destination vc , then inside didSelectRowAt delegate method of table dp
self.performSegue(withIdentifier:"SegueNameHere",sender:nil)