How to pass data to AddController to UITableViewController - swift

Question

I have a problem with my swift code. I have an UITableViewCotroller with a prototype cell, in this cell there are three labels. I created the file TimerCell.swift with the #IBOutlet for the labels:
import UIKit
class TimerCell: UITableViewCell {
#IBOutlet var circostanza: UILabel!
#IBOutlet var luogo: UILabel!
#IBOutlet var tempo: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
override func setSelected(selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
}
and the file TimerModel.swift with this code:
import UIKit
class TimerModel: NSObject, NSCoding {
var circostanza :String!
var luogo : String!
var tempo : String!
init(circostanzaIn:String, luogoIn:String, tempoIn:String) {
circostanza = circostanzaIn
luogo = luogoIn
tempo = tempoIn
}
internal required init(coder aDecoder: NSCoder) {
self.circostanza = aDecoder.decodeObjectForKey("circostanza") as! String
self.luogo = aDecoder.decodeObjectForKey("luogo") as! String
self.tempo = aDecoder.decodeObjectForKey("tempo") as! String
}
func encodeWithCoder(encoder: NSCoder) {
encoder.encodeObject(self.circostanza, forKey: "circostanza")
encoder.encodeObject(self.luogo, forKey: "luogo")
encoder.encodeObject(self.tempo, forKey: "tempo")
}
}
Then I have a button + in the UITableViewCotroller to open an AddController with three text field to add some data. I want to save these data in the cell's labels. The code in the AddController is:
import UIKit
class AddTimerController: UIViewController, UITextFieldDelegate {
#IBOutlet var fieldCircostanza: UITextField!
#IBOutlet var fieldLuogo: UITextField!
#IBOutlet var fieldTempo: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
fieldCircostanza.delegate = self
fieldLuogo.delegate = self
//
var keyboardToolbar = UIToolbar(frame: CGRectMake(0, 0, self.view.bounds.size.width, 44))
keyboardToolbar.barStyle = UIBarStyle.BlackTranslucent
keyboardToolbar.backgroundColor = UIColor.redColor()
keyboardToolbar.tintColor = UIColor.whiteColor()
var flex = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil)
var save = UIBarButtonItem(title: "Fatto", style: UIBarButtonItemStyle.Done, target: fieldTempo, action: "resignFirstResponder")
keyboardToolbar.setItems([flex, save], animated: false)
fieldTempo.inputAccessoryView = keyboardToolbar
}
func textFieldShouldReturn(textField: UITextField) -> Bool {
textField.resignFirstResponder() // chiudere la tastiera nei campi di testo
return true
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
#IBAction func annulla(sender: UIButton) {
dismissViewControllerAnimated(true, completion: nil) // chiude una modal
}
#IBAction func salva(sender: UIButton) {
if fieldCircostanza.text.isEmpty &&
fieldLuogo.text.isEmpty &&
fieldTempo.text.isEmpty{
//alertView
return
}
var timer = TimerModel(circostanzaIn: fieldCircostanza.text,
luogoIn: fieldLuogo.text,
tempoIn: fieldTempo.text)
DataManager.sharedInstance.salvaArray()
DataManager.sharedInstance.detail.myCollection.reloadData()
dismissViewControllerAnimated(true, completion: nil)
}
}
Finally the UITableViewCotroller file:
import UIKit
class TimerViewController: UITableViewController {
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MARK: - Table view data source
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return DataManager.sharedInstance.storage.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! TimerCell
//cell.circostanza.text = timer.circostanza
//cell.luogo.text = timer.luogo
//cell.tempo.text = timer.tempo
return cell
}
override func tableView(tableView: UITableView, canEditRowAtIndexPath indexPath: NSIndexPath) -> Bool {
// Return false if you do not want the specified item to be editable.
return true
}
override func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
if editingStyle == .Delete {
DataManager.sharedInstance.storage.removeAtIndex(indexPath.row)
DataManager.sharedInstance.salvaArray()
tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: .Fade)
} else if editingStyle == .Insert {
// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view.
}
}
// MARK: - Navigazione
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "modifica" {
//let controller = (segue.destinationViewController as UINavigationController).topViewController as AddController
}
}
}
Can you help me with the code for saving data?

Answer 1

for your query in the comment, this will correct that:
In your TimerModel:
import UIKit
class TimerModel: NSObject, NSCoding {
var circostanza :String!
var luogo : String!
var tempo : String!
override init() { // add this method
super.init()
}
init(circostanzaIn:String, luogoIn:String, tempoIn:String) {
circostanza = circostanzaIn
luogo = luogoIn
tempo = tempoIn
}
internal required init(coder aDecoder: NSCoder) {
self.circostanza = aDecoder.decodeObjectForKey("circostanza") as! String
self.luogo = aDecoder.decodeObjectForKey("luogo") as! String
self.tempo = aDecoder.decodeObjectForKey("tempo") as! String
}
func encodeWithCoder(encoder: NSCoder) {
encoder.encodeObject(self.circostanza, forKey: "circostanza")
encoder.encodeObject(self.luogo, forKey: "luogo")
encoder.encodeObject(self.tempo, forKey: "tempo")
}
}

Answer 2

For accessing timer in tableViewController, do this:
import UIKit
class AddTimerController: UIViewController, UITextFieldDelegate {
#IBOutlet var fieldCircostanza: UITextField!
#IBOutlet var fieldLuogo: UITextField!
#IBOutlet var fieldTempo: UITextField!
var timer: TimerModel! // Made timer a class member
override func viewDidLoad() {
......
}
// your code ....
#IBAction func salva(sender: UIButton) {
if fieldCircostanza.text.isEmpty &&
fieldLuogo.text.isEmpty &&
fieldTempo.text.isEmpty{
//alertView
return
}
timer = TimerModel(circostanzaIn: fieldCircostanza.text, // intialize timer
luogoIn: fieldLuogo.text,
tempoIn: fieldTempo.text)
DataManager.sharedInstance.salvaArray()
DataManager.sharedInstance.detail.myCollection.reloadData()
dismissViewControllerAnimated(true, completion: nil)
}
}
and after that in tableViewController, access it like this:
class TimerViewController: UITableViewController {
var timer: TimerModel! // Change to this
override func viewDidLoad() {
super.viewDidLoad()
var controller : AddTimerController = AddTimerController()
timer = controller.timer
}
// your code .......
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! TimerCell
cell.circostanza.text = timer.circostanza
cell.luogo.text = timer.luogo
cell.tempo.text = timer.tempo
return cell
}
}