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Passing data between view controllers
(45 answers)
Closed 2 years ago.
i’m newbie in swift language and i want to pass the price from the Item view controller to other controller (Payment view controller) using array. Can anyone help me? Thank you
Here the code for the item detail view controller
import UIKit
class ItemDetailViewController: UIViewController {
var items = [item]()
var name : String = ""
var price : String = ""
var imagee : String = ""
#IBOutlet weak var labelname: UILabel!
#IBOutlet weak var image: UIImageView!
#IBOutlet weak var labelprice: UILabel!
// This one got error.
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
// Get the new view controller using segue.destination.
var DestViewController : PaymentViewController = segue.destination as! PaymentViewController
DestViewController.price = labelprice?[IndexPath.text]
}
#IBAction func addtoPayment(_ sender: Any) {
}
override func viewDidLoad() {
super.viewDidLoad()
labelname.text = name
labelprice.text = price
image.image = UIImage(named: imagee)
}
}
And here the code for the payment
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()
}
}
you can use this code ... try to use first letter small for objects
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
// Get the new view controller using segue.destination.
var destViewController : PaymentViewController = segue.destination as! PaymentViewController
if let lText = labelprice?.text {
destViewController.price = lText
}
}
If you want to unwrap:
DestViewController.price = labelprice?.text ?? “”
This way is not recommended but you can use
DestViewController.price = labelprice!.text
Search for unwarp in Swift
Related
Hello guys can you help me, I have an app that has two ViewController and in the first VC I have four empty TextField and at the second VC I have four empty Labels that should receive new information and show I the label but my code doesn't work so could you help with this problem, I think something not right with my personalData
import UIKit
class ViewController: UIViewController {
#IBOutlet weak var name: UITextField!
#IBOutlet weak var age: UITextField!
#IBOutlet weak var city: UITextField!
#IBOutlet weak var mail: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
let tap = UITapGestureRecognizer(target: self, action: #selector(self.dismissKeyboard))
view.addGestureRecognizer(tap)
}
#objc func edit() {
print("Edit is done")
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
guard segue.identifier == "personalData" else { return }
guard let destination = segue.destination as? SecondViewController else { return }
destination.personalData = name.text ?? ""
destination.personalData = age.text ?? ""
destination.personalData = city.text ?? ""
destination.personalData = mail.text ?? ""
}
#objc func dismissKeyboard() {
view.endEditing(true)
}
}
//////////////////////////////////////
import UIKit
class SecondViewController: UIViewController {
struct User{
}
var personalData = ""
override func viewDidLoad() {
super.viewDidLoad()
firstProfileLabel.text = personalData
secondProfileLabel.text = personalData
thirdProfileLabel.text = personalData
lastProfileLabel.text = personalData
print("SecondVC", #function)
navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .edit,
target: self,
action: #selector(edit))
}
#objc func edit() {
print("Edit is done")
}
#IBOutlet weak var firstProfileLabel: UILabel!
#IBOutlet weak var secondProfileLabel: UILabel!
#IBOutlet weak var thirdProfileLabel: UILabel!
#IBOutlet weak var lastProfileLabel: UILabel!
}
My mentor said that "The problem is with the variable personalData. The variable is of the stripe type and can store only one value.
If you want to pass values through a variable and not directly, you can create a structure, e.g. User with variables Name, Age, City, etc., and make personalData a User type and empty array."
But I don't understand how exactly I should write it in code.
Start simple. Give your second view controller separate properties for each value you want to pass:
class SecondViewController: UIViewController {
var name: String
var age: String
var city: String
var mail: String
}
Then in your first view controller's perpare(for:) method, set each of those variables separately:
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
guard segue.identifier == "personalData" else { return }
guard let destination = segue.destination as? SecondViewController else { return }
destination.name = name.text ?? ""
destination.age = age.text ?? ""
destination.city = city.text ?? ""
destination.mail = mail.text ?? ""
}
And rewrite your second view controller's viewDidLoad method to install each property into the correct field.
Once you've got that working, you can figure out how to instead pass all the string values in a single structure.
Hint:
Create a struct called something like UserInfo:
struct UserInfo {
let name: String
let age: String
let city: String
let mail: String
}
And then give your second view controller a property of type UserInfo, and set that in prepare(for:)
I am currently working on an app and I am stuck on the following: I have my mainVC (ReceiveInputVC), which after I enter an input, it goes to the secondVC (TimeLeftVC) and it updates all of its labels with results from the inputs received from the mainVC. My question is: How can I, after clicking on the arrow to go back to the mainVC or even if I close the app, when I click on the arrow from the mainVC to go to the secondVC have my labels showing the same values as before the user closed the application or returned to the main screen?
import UIKit
extension UIViewController {
func hideKeyboard() {
let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(dismissKeyboard))
view.addGestureRecognizer(tap)
}
#objc func dismissKeyboard() {
view.endEditing(true)
}
}
class ReceiveInputVC: UIViewController {
#IBOutlet weak var hourglassButton: UIButton!
#IBOutlet weak var whatIsYourAgeField: UITextField!
#IBOutlet weak var ageToDieField: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
self.hideKeyboard()
}
#IBAction func arrowBtnPressed(_ sender: Any) {
// When pressed should show go to TimeLeftVC and show last result from the first time user entered the inputs, if nothing has been typed yet and no data has been saved an alert should pop up asking the user to enter an input on both fields
}
#IBAction func hourglassBtnPressed(_ sender: Any) {
let checkAgeField: Int? = Int(whatIsYourAgeField.text!)
let checkDyingAgeField: Int? = Int(ageToDieField.text!)
if (whatIsYourAgeField.text == "" || ageToDieField.text == "") || (whatIsYourAgeField.text == "" && ageToDieField.text == "") {
alert(message: "You must enter an input on both fields")
} else if checkAgeField! < 1 || checkDyingAgeField! > 100 {
alert(message: "You must enter an age higher than 1 and a dying age lower than 100")
} else if (checkAgeField! > checkDyingAgeField!) || (checkAgeField! == checkDyingAgeField!) {
alert(message: "You must enter an age lower than a dying age")
} else {
performSegue(withIdentifier: "goToSecondScreen", sender: self)
}
}
func alert(message: String, title: String = "Alert") {
let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
alert.addAction(UIAlertAction(title: "Try Again", style: UIAlertAction.Style.default, handler: nil))
self.present(alert, animated: true, completion: nil)
}
// Passing the data entered from ReceiveInputVC to TimeLeftVC
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "goToSecondScreen" {
let destinationTimeLeftVC = segue.destination as! TimeLeftVC
destinationTimeLeftVC.ageReceived = whatIsYourAgeField.text
destinationTimeLeftVC.ageToDieReceived = ageToDieField.text
}
}
}
import CircleProgressBar
class TimeLeftVC: UIViewController {
var ageReceived: String! // receive whatIsYourAgeField data from ReceiveInputVC
var ageToDieReceived: String! // receive ageToDieField data from ReceiveInputVC
#IBOutlet weak var yearsLeftLabel: UILabel!
#IBOutlet weak var daysLeftLabel: UILabel!
#IBOutlet weak var hoursLeftLabel: UILabel!
#IBOutlet weak var progressBar: CircleProgressBar!
override func viewDidLoad() {
super.viewDidLoad()
createResults()
}
func createResults() {
if let userAge = Int(ageReceived), let dyingAge = Int(ageToDieReceived) {
let yearsLeft = dyingAge - userAge
let daysLeft = yearsLeft * 365
let hoursLeft = daysLeft * 24
// Update UI
yearsLeftLabel.text = "\(yearsLeft)"
daysLeftLabel.text = "\(daysLeft)"
hoursLeftLabel.text = "\(hoursLeft)"
let percentage = (CGFloat(yearsLeft) / CGFloat(dyingAge)) * 100
let formatted = String(format: "%.1f", percentage)
// Update Circle Progress Bar
progressBar.setHintTextGenerationBlock { (progress) -> String? in
return String.init(format: "\(formatted)%%", arguments: [progress])
}
progressBar.setProgress(percentage/100, animated: true, duration: 4.0)
}
}
Project on GitHub: https://github.com/mvvieira95/Time-Life.git
You can use Coredata or another data base or user default
User default implementation:
#IBAction func arrowBtnPressed(_ sender: Any) {
UserDefaults.standard.set("your input values from text field or ...", forKey: "key")
}
In second view controller get it with
UserDefaults.standard.string(forKey: "key")
You can save and restore states with these methods
application:shouldSaveApplicationState and application:shouldRestoreApplicationStat.
Example:
func application(_ application: UIApplication,
shouldSaveApplicationState coder: NSCoder) -> Bool {
// Save the current app version to the archive.
coder.encode(11.0, forKey: "MyAppVersion")
// Always save state information.
return true
}
func application(_ application: UIApplication,
shouldRestoreApplicationState coder: NSCoder) -> Bool {
// Restore the state only if the app version matches.
let version = coder.decodeFloat(forKey: "MyAppVersion")
if version == 11.0 {
return true
}
// Do not restore from old data.
return false
}
You can explore the document in https://developer.apple.com/documentation/uikit/view_controllers/preserving_your_app_s_ui_across_launches?language=objc
Thanks guys, I came up with a solution:
class ReceiveInputVC: UIViewController {
#IBAction func arrowBtnPressed(_ sender: Any) {
let defaults = UserDefaults.standard
if let _ = defaults.object(forKey: "yearsSaved"), let _ = defaults.object(forKey: "daysSaved"), let _ = defaults.object(forKey: "hoursSaved") {
performSegue(withIdentifier: "goToSecondScreen", sender: self)
} else {
alert(message: "You must first enter an input")
}
}
class TimeLeftVC: UIViewController {
var ageReceived: String! // receive whatIsYourAgeField data from ReceiveInputVC
var ageToDieReceived: String! // receive ageToDieField data from ReceiveInputVC
#IBOutlet weak var yearsLeftLabel: UILabel!
#IBOutlet weak var daysLeftLabel: UILabel!
#IBOutlet weak var hoursLeftLabel: UILabel!
#IBOutlet weak var progressBar: CircleProgressBar!
override func viewDidLoad() {
super.viewDidLoad()
let defaults = UserDefaults.standard
yearsLeftLabel.text = defaults.object(forKey: "yearsSaved") as? String
daysLeftLabel.text = defaults.object(forKey: "daysSaved") as? String
hoursLeftLabel.text = defaults.object(forKey: "hoursSaved") as? String
}
override func viewWillAppear(_ animated: Bool) {
createResults()
}
func createResults() {
if let userAge = Int(ageReceived), let dyingAge = Int(ageToDieReceived) {
let yearsLeft = dyingAge - userAge
let daysLeft = yearsLeft * 365
let hoursLeft = daysLeft * 24
// Update UI
yearsLeftLabel.text = "\(yearsLeft)"
daysLeftLabel.text = "\(daysLeft)"
hoursLeftLabel.text = "\(hoursLeft)"
// Store Data
let defaults = UserDefaults.standard
defaults.set(yearsLeftLabel.text, forKey: "yearsSaved")
defaults.set(daysLeftLabel.text, forKey: "daysSaved")
defaults.set(hoursLeftLabel.text, forKey: "hoursSaved")
// Update Circle Progress Bar
let percentage = (CGFloat(yearsLeft) / CGFloat(dyingAge)) * 100
let formatted = String(format: "%.1f", percentage)
progressBar.setHintTextGenerationBlock { (progress) -> String? in
return String.init(format: "\(formatted)%%", arguments: [progress])
}
progressBar.setProgress(percentage/100, animated: true, duration: 4.0)
}
}
Having troubles now updating that progressBar when I go back to the view...
im attempting to add user data via a create account view controller which contains all UITextFields (password, confirm password, first name, last name, phone number). when the create account button is tapped, the users email shows up in the authentication section on the firebase website but the user information from the first name, last name and phone number text fields are not passed into the database. I'm new to iOS development and have never used firebase so im unsure what the issue is. the app runs without crashing.
below is my Create Account view controller
thanks in advance
import UIKit
import FirebaseAuth
import QuartzCore
import FirebaseDatabase
import Firebase
class CreateAccount: UIViewController {
var refUsers: DatabaseReference!
#IBOutlet weak var emailTextField: UITextField!
#IBOutlet weak var passwordTextField: UITextField!
#IBOutlet weak var confirmPasswordTextField: UITextField!
#IBOutlet weak var firstNameTextField: UITextField!
#IBOutlet weak var lastNameTextField: UITextField!
#IBOutlet weak var phoneNumberTextField: UITextField!
#IBOutlet weak var alreadyHaveAccountLabel: UILabel!
#IBAction func loginButtonTapped(_ sender: Any) {
performSegue(withIdentifier: "showLoginScreen", sender: self)
}
override func viewDidLoad() {
super.viewDidLoad()
self.refUsers = Database.database().reference().child("Users");
// Do any additional setup after loading the view.
}
override func viewDidAppear(_ animated: Bool) {
if Auth.auth().currentUser != nil {
print("success")
self.presentMainScreen()
}
}
#IBAction func createAccountTapped(_ sender: Any) {
if let email = emailTextField.text, let password = passwordTextField.text {
Auth.auth().createUser(withEmail: email, password: password, completion:{ user, error in
if let firebaseError = error {
print(firebaseError.localizedDescription)
return
} else {
self.addUser()
print("this is the first name:", self.firstNameTextField.text!)
print("this is the last name:", self.lastNameTextField.text!)
print("this is the phone number" , self.phoneNumberTextField.text!)
print("success")
self.presentMainScreen()
}
})
}
}
func addUser(){
let key = refUsers.childByAutoId().key
let user = ["id":key,
"FirstName":firstNameTextField.text! as String,
"LastName":lastNameTextField.text! as String,
"PhoneNumber":phoneNumberTextField.text! as String
]
refUsers.child(key).setValue(user)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
/*
// MARK: - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
}
*/
func presentMainScreen(){
let mainstoryboard = UIStoryboard(name: "Main", bundle: nil)
let mainTabController = mainstoryboard.instantiateViewController(withIdentifier: "MainTabController") as! MainTabController
mainTabController.selectedViewController = mainTabController.viewControllers?[0]
self.present(mainTabController, animated: true, completion: nil)
//let storyboard:UIStoryboard = UIStoryboard(name:"Main", bundle:nil)
//let loggedInVC:LoggedInVC = storyboard.instantiateViewController(withIdentifier: "LoggedInVC") as! LoggedInVC
//self.present(loggedInVC, animated: true, completion: nil)
}
}
Try this:
Instead of set value use update value
let childUpdates = ["/user/\(key)": user]
refUser.updateChildValues(childUpdates)
Hope this helps :)
Im developing an iOS app and its includes selling goods outside of the app so I downloaded Stripe using Cocoapods and placing it in my poodle. I know I have correctly installed in my app and input my test API key, because it import Stripe line works just fine. However I am having trouble creating a token. Every time I try to run my code in the simulator and try to make a purchase it prints there was an error. I don't know if its because I implemented the wrong line of code somewhere or left some out, so I was wondering if anybody could help me figure out why the purchase isn't going through? I know I don't have a backend set up but I'm not trying to send the token to the server yet I'm just trying to make sure my app is connected to Stripe which is the first step of 6 that require to actually make a purchase. Thanks for your help in advance.
Code for view controller before the one that lets user (through firebase authentication) make a purchase and stores data:
import UIKit
class PaymentInfoController: UIViewController {
#IBOutlet weak var paymentLabel: UILabel!
#IBOutlet weak var cardField: UITextField!
#IBOutlet weak var cvcField: UITextField!
#IBOutlet weak var expField: UITextField!
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if let checkoutVC = segue.destination as? CheckoutController {
checkoutVC.cardNumber = self.cardField.text!
checkoutVC.cvc = self.cvcField.text!
if self.expField.text?.isEmpty == false {
expField.text?.contains("0123456789/")
(expField.text?.characters.count)! <= 7
let expDate = self.expField.text?.components(separatedBy: "/")
let expMonth = UInt((expDate?[0])!)
let expYear = UInt((expDate?[1])!)
checkoutVC.expMon = expMonth!
checkoutVC.expYear = expYear!
}
}
}
#IBAction func checkout(_ sender: Any) {
performSegue(withIdentifier: "checkout", sender: self)
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
Code for view controller where the purchase is made:
import UIKit
import FirebaseAuth
import FirebaseDatabase
import Firebase
import Stripe
class CheckoutController: UIViewController {
let ref = Database.database().reference()
#IBOutlet weak var feeLabel: UILabel!
#IBOutlet weak var amountLabel: UILabel!
var cardNumber = String()
var cvc = String()
var expMon = UInt()
var expYear = UInt()
#IBAction func purchase(_ sender: Any) {
if Auth.auth().currentUser != nil {
// Initiate the card
let stripCard = STPCard()
STPAPIClient.shared().createToken(withCard: stripCard, completion: { (token, error) -> Void in
if error != nil {
print("There is an error")
}
else {
// Send the card info to Strip to get the token
stripCard.number = self.cardNumber
stripCard.cvc = self.cvc
stripCard.expMonth = UInt(self.expMon)
stripCard.expYear = UInt(self.expYear)
let alert = UIAlertController(title: "Your Stripe token is " + (token?.tokenId)!, message: "", preferredStyle: .alert)
let defaultAction = UIAlertAction(title: "OK", style: .default, handler: nil)
alert.addAction(defaultAction)
self.present(alert, animated: true, completion: nil)
print(token!)
}
})
}
}
override func viewDidLoad() {
super.viewDidLoad()
let user = Auth.auth().currentUser
let userID: String = (user?.uid)!
if user != nil {
let totalRef = ref.child("users/\(userID)").child("Total")
totalRef.observeSingleEvent(of: .value, with: { (snapshot) in
let cost = snapshot.value as! Int
self.totalLabel.text = "\(cost) bookies"
let total = (Double(cost) * 1.35) + 1.39
self.amountLabel.text = "$\(total)"
})
}
}
The problem is that you're submitting a blank STPCard. You are calling the createToken method without setting any of the fields on the card. For some reason, it looks like you're only setting the card fields in the Completion block after you've gotten a token. You need to move these lines:
stripCard.number = self.cardNumber
stripCard.cvc = self.cvc
stripCard.expMonth = UInt(self.expMon)
stripCard.expYear = UInt(self.expYear)
up before you make the call to createToken.
In my app I am using segue to pass data between two viewcontrollers and that should be easy enough, but for som reason I can`t see there I keep getting "Unresolved Identifier"
Her are some of the code that has to do with that function.
from ViewController 1
import UIKit
import CoreData
class ViewController: UIViewController, UITextFieldDelegate
{
#IBOutlet var panelWidthTextField: UITextField!
#IBOutlet var panelHightTextField: UITextField!
#IBOutlet var panelsWideTextField: UITextField!
#IBOutlet var panelsHightTextField: UITextField!
#IBOutlet var panelPitchTextField: UITextField!
#IBOutlet var calculateButton: UIButton!
#IBOutlet var resultWithLabel: UILabel!
#IBOutlet var resultHightLabel: UILabel!
#IBOutlet var fillAllFieldsLabel: UILabel!
var pawidth:String!
var pahight:String!
var papitch:String!
override func viewDidLoad()
{
super.viewDidLoad()
panelWidthTextField.text = pawidth
panelHightTextField.text = pahight
panelPitchTextField.text = pap itch
From Second ViewController
import UIKit
import CoreData
class DataBase: UIViewController, UITextFieldDelegate
{
#IBOutlet var makerTextField: UITextField!
#IBOutlet var modelTextField: UITextField!
#IBOutlet var stPanelWidthTextField: UITextField!
#IBOutlet var stPanelHightTextField: UITextField!
#IBOutlet var stPitchTextField: UITextField!
let moc = (UIApplication.sharedApplication().delegate as! AppDelegate).managedObjectContext
// Removes keyboard when touch outside edit field.
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?)
{
view.endEditing(true)
super.touchesBegan(touches, withEvent: event)
}
#IBAction func saveButton(sender: UIButton)
{
let ed = NSEntityDescription.entityForName("Ledinfo", inManagedObjectContext: moc)
let model = Ledinfo(entity:ed!, insertIntoManagedObjectContext:moc)
model.manufactor = makerTextField.text
model.model = modelTextField.text
model.panelwidth = stPanelWidthTextField.text
model.panelhight = stPanelHightTextField.text
model.pitch = stPitchTextField.text
do {
try moc.save()
makerTextField.text = ""
modelTextField.text = ""
stPanelWidthTextField.text = ""
stPanelHightTextField.text = ""
stPitchTextField.text = ""
Alert.show("Succsess", message: "Your Record Is Saved", vc: self)
}
catch _ as NSError
{
Alert.show("Failed", message: "Something Went Wrong", vc: self)
}
}
#IBAction func searchButton(sender: UIButton)
{
let ed = NSEntityDescription.entityForName("Ledinfo", inManagedObjectContext: moc)
let req = NSFetchRequest()
req.entity = ed
let cond = NSPredicate(format: "manufactor = %#", makerTextField.text!)
req.predicate = cond
do {
let result = try moc.executeFetchRequest(req)
if result.count > 0
{
let model = result[0] as! Ledinfo
makerTextField.text = model.manufactor
modelTextField.text = model.model
stPanelWidthTextField.text = model.panelwidth
stPanelHightTextField.text = model.panelhight
stPitchTextField.text = model.pitch
} else
{
Alert.show("Failed", message: "No Record Is Found", vc: self)
}
} catch _ as NSError!
{
Alert.show("Failed", message: "No Record Is Found" , vc: self)
}
}
#IBAction func transfereButton(sender: UIButton) {
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {
if (segue.identifier == "transfereButton") {
let svc = segue.destinationViewController as! ViewController
svc.pawidth = stPanelWidthTextField.text
svc.pahight = stPanelHightTextField.text
svc.papitch = stPitchTextField.text
}
}
}
It can not find panelWidthTextField.text, panelHightTextField.text and panelPitchTextField.text as identifier.
I have check spelling and just can`t seem to be able to find what is missing.
Any help is appreciated
"Segue" means, that in "prepareForSegue" method you set the property of ViewController to some data in your DataBase controller. In your example, this can be done like this:
svc.pawidth = someDataFromDataBaseWhichYouWantToPassToSecondVC
svc.pahight = someDataFromDataBaseWhichYouWantToPassToSecondVC
svc.papitch = someDataFromDataBaseWhichYouWantToPassToSecondVC
And then, you can manipulate this data from your ViewController class.
You mistake that you are not passing the data from one VC to another, instead of that you are trying to set the property of 1stVC to another property of 1stVC, and there is no segue needed.
This has nothing to do with segues. do you have 3 text fields in your DataBase class with names panelWidthTextField, panelHightTextField and panelPithcTextField? It's complaining about not being able to find those variables.
You should call the performSegueWithIdentifier("transfereButton", sender: nil) inside your transfereButton IBOutlet action to actually make the prepareForSegue to run.