swift custom uitextviewcell label always nil - ios

Question

i'm stuck here since two days ago, and cant find how to manage this..
I have an uitableview, with an array of custom cells and sections, here's what i want to do:
Section 1: just a row with a label inside
Section 2: a datepicker (i used DVDatePickerTableViewCell class for this)
here's the code for the table view
import UIKit
class DettagliRichiestaTVC: UITableViewController {
//sections contiene le sezioni
let sections: NSArray = ["Stato", "Data", "Priorità", "Richiesta", "Risposta"]
//cells contiene tutte le righe della tabella, un 2D array
var cells:NSArray = []
var stato:String = "Completato"
#IBOutlet weak var statoLabel: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
// statoLabel.text = stato
self.tableView.rowHeight = UITableViewAutomaticDimension
self.tableView.estimatedRowHeight = 44
// Cells is a 2D array containing sections and rows.
var cellStato = cellDettagli(style: UITableViewCellStyle.Default, reuseIdentifier: "cellStato")
cellStato.label?.text = "Ciao"
cells = [
[cellStato],
[DVDatePickerTableViewCell(style: UITableViewCellStyle.Default, reuseIdentifier: nil)]
]
// Uncomment the following line to preserve selection between presentations
// self.clearsSelectionOnViewWillAppear = false
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
#IBAction func selectedStato(segue:UIStoryboardSegue) {
let statoRichiesteTVC = segue.sourceViewController as StatoRichiesteTVC
if let selectedStato = statoRichiesteTVC.selectedStato {
statoLabel.text = selectedStato
stato = selectedStato
}
self.navigationController?.popViewControllerAnimated(true)
}
// MARK: - Table view data source
/*
// MARK: - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
override func tableView(tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
var headerFrame:CGRect = tableView.frame
var title = UILabel(frame: CGRectMake(10, 10, 100, 20))
title.font = UIFont.boldSystemFontOfSize(12.0)
title.text = self.sections.objectAtIndex(section) as? String
title.textColor = UIColor(red: 0.6, green: 0.6, blue: 0.6, alpha: 1)
var headerView:UIView = UIView(frame: CGRectMake(0, 0, headerFrame.size.width, headerFrame.size.height))
headerView.backgroundColor = UIColor(red: 1, green: 1, blue: 1, alpha: 0.8)
headerView.addSubview(title)
return headerView
}
override func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
var cell = self.tableView(tableView, cellForRowAtIndexPath: indexPath)
if (cell.isKindOfClass(DVDatePickerTableViewCell)) {
return (cell as DVDatePickerTableViewCell).datePickerHeight()
}
return super.tableView(tableView, heightForRowAtIndexPath: indexPath)
}
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return cells.count
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return cells[section].count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
return cells[indexPath.section][indexPath.row] as UITableViewCell
}
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
var cell = self.tableView(tableView, cellForRowAtIndexPath: indexPath)
if (cell.isKindOfClass(DVDatePickerTableViewCell)) {
var datePickerTableViewCell = cell as DVDatePickerTableViewCell
datePickerTableViewCell.selectedInTableView(tableView)
}
self.tableView.deselectRowAtIndexPath(indexPath, animated: true)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
//println(segue.identifier)
if segue.identifier == "SavePlayerDetail" {
}
if segue.identifier == "SelezionaStatoRichiesta" {
let statoRichiesteTVC = segue.destinationViewController as StatoRichiesteTVC
statoRichiesteTVC.selectedStato = stato
}
}
}
and here's the custom cell class
import UIKit
class cellDettagli: UITableViewCell {
#IBOutlet weak var label: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
func loadItem(#Label: String) {
label.text = Label
}
override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
}
required init(coder aDecoder: NSCoder) {
//fatalError("init(coder:) has not been implemented")
super.init(coder: aDecoder)
}
override func setSelected(selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
}
if i set cellStato.label?.text = "Ciao" , it crashes saying "fatal error: unexpectedly found nil while unwrapping an Optional value" .
I created also the .xib file and assigned that to cellDettagli class.
I always get that error.
How can i set the values of this label, and the date of the datepicker row?
Thank you

Answer 1

I made it work using this:
var cell:cellDettagli? = tableView.dequeueReusableCellWithIdentifier("cellDettagli") as? cellDettagli
if (cell==nil){
var nib:NSArray=NSBundle.mainBundle().loadNibNamed("cellDettagli", owner: self, options: nil)
cell = nib.objectAtIndex(0) as? cellDettagli
}
inside my cellForRowAtIndexPath.
Thank you Alexander for your help! I already use static cells and storyboards...!

Answer 2

You're creating cells using the designated initialiser, which means the views that you've added in the nib won't be there at runtime. You will need to register your nib with the tableview first using registerNib:forCellReuseIdentifier:, then dequeue cells accordingly using dequeueReusableCellWithIdentifier:forIndexPath:.
https://developer.apple.com/library/ios/documentation/UIKit/Reference/UITableView_Class/index.html
Since it looks like you're using static cells, you might be better off using a storyboard with "Static Cells" content type on your table view instead of "Dynamic Prototypes".
For more information on static cells, see the docs https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/TableView_iPhone/CreateConfigureTableView/CreateConfigureTableView.html