I'm very new in iOS development and I'm stuck on how to save data into the model when accessing several views..
I have a pizza selector (for the sake of this example I'm going to simplify the model), my root file have 2 buttons label as: "Size","Dough", each time you press a button you navigate to a new ViewController within a show segue, in here you have a picker to select from 3 types of sizes or doughs.
What I'm not capable of doing is to save the data from one of the views when returning from the other, I mean, if you press the size button and select for example "large" when you clic on accept it returns to the ViewController class and I have the value of "large" but now if you press on the "Dough" button and select "thin" when you come back it only have the "thin" value the previous size values is lost...
This is the ViewController (root file):
class ViewController: UIViewController {
let pizza = Pizza(tamano: "", masa: "")
enum Constantes {
case Tamano
case Masa
}
@IBOutlet weak var tamanoLabel: UIButton!
// Almacenamos el tamaño de la pizza
var tamanoPvara:String?
var tipoMasa:String?
// Almacenamos cuales tipos/ingredientes aun no tengo
var compruebaEleccion = [Constantes.Tamano:false]
override func viewDidLoad() {
super.viewDidLoad()
print("tamano: \(pizza.tamano) masa: \(pizza.masa)")
// Do any additional setup after loading the view, typically from a nib.
// if let (pizza.model["Tamano"] != "") {
// labelTamanoPizza.text = pizza.model["Tamano"]
// }
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
@IBAction func btnConfirmacion(sender: AnyObject) {
// Variable para saber si estan todos los pasos hechos
print("tamano: \(pizza.tamano) masa: \(pizza.masa)")
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if (segue.identifier == "tamanoPizza") {
print("tamaño")
let destinationViewController = segue.destinationViewController as! ViewTamanoController
destinationViewController.pizza = self.pizza
}
if (segue.identifier == "TipoMasa") {
print("masa")
let destinationViewController = segue.destinationViewController as! ViewTipoMasaController
destinationViewController.pizza = self.pizza
}
}
}
This is the ViewSizeController:
class ViewTamanoController: UIViewController,UIPickerViewDataSource,UIPickerViewDelegate {
@IBOutlet weak var tamanoSelector: UIPickerView!
@IBOutlet weak var labelTamano: UILabel!
let pickerData = ["Chica","Mediana","Grande"]
var pizza = Pizza?()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
tamanoSelector.dataSource = self
tamanoSelector.delegate = self
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int {
return 1
}
func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
return pickerData.count
}
func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
return pickerData[row]
}
func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
labelTamano.text = pickerData[row]
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if (segue.identifier == "fromTamanoToController") {
print("segue tamaño")
let viewController = segue.destinationViewController as! ViewController
// viewController.tamanoPizza = labelTamano.text;
viewController.pizza.tamano = labelTamano.text
}
}
@IBAction func btnAceptar(sender: AnyObject) {
// print("aceptar tamaño")
pizza!.tamano = labelTamano.text
print(pizza!.tamano)
}
}
And this is the ViewDoughController
class ViewTipoMasaController: UIViewController,UIPickerViewDataSource,UIPickerViewDelegate {
@IBOutlet weak var tipoMasaLabel: UILabel!
@IBOutlet weak var tipoMasaSelector: UIPickerView!
let pickerData = ["Delgada","Crujiente","Gruesa"]
var pizza = Pizza?()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
tipoMasaSelector.dataSource = self
tipoMasaSelector.delegate = self
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int {
return 1
}
func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
return pickerData.count
}
func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
return pickerData[row]
}
func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
tipoMasaLabel.text = pickerData[row]
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if (segue.identifier == "fromTipoMasaToController") {
let viewController = segue.destinationViewController as! ViewController
// viewController.tipoMasa = tipoMasaLabel.text;
viewController.pizza.masa = tipoMasaLabel.text
}
}
@IBAction func btnAceptar(sender: AnyObject) {
pizza?.masa = tipoMasaLabel.text
print(pizza!.masa)
}
}
I know this is kind of easy question but any help will be appreciated
Thank you so much
