CODEWITHSUNDEEP
iosuitableviewswift
Ryguyu
Ryguyu

Reputation: 173

tableView outlet nil when loading a table

I have a tabBarController and two UINavigationControllers with UITableViews attached to the tabBarController. I have subclassed the tabBarController so I can pass an array of custom objects between the two tables by reference. However, when I go to populate the array, the tableView outlet is unwrapping to nil and I am getting the error "fatal error: unexpectedly found nil while unwrapping an Optional value". Not sure why this is happening. Below is the code:

tabBarController

protocol CustomTabBarDelegate {
var placeDataArray : Array <placeData> {get set}
}

class placeData: Equatable {
var description : String
var selected : Bool

init (description : String, selected : Bool) {
    self.description = description
    self.selected = selected
}
}

class PlacesTabBarController: UITabBarController {

var placeDataArray = Array<placeData>()

override func viewDidLoad() {
    super.viewDidLoad()

    placeDataArray = [placeData(description: "Afghanistan", selected: false), placeData(description: "Albania", selected: false)]

    var table1 = AllPlacesViewController()
    var table2 = AttendingPlacesTableViewController()

    table1.delegate = self
    table2.delegate = self

    var navController1 = UINavigationController(rootViewController: table1)
    var navController2 = UINavigationController(rootViewController: table2)

    self.viewControllers = [navController1, navController2]
    }
}

tableViewControllers

var delegate:PlacesTabBarController!

and then, for instance, I can access the array by calling

delegate.placeDataArray.count

When I go to populate the table with 

@IBOutlet weak var allPlacesTableView: UITableView!

and use 

 var cell = self.allPlacesTableView.dequeueReusableCellWithIdentifier("Cell") as UITableViewCell

The error mentioned above is thrown. Not sure why allPlacesTableView is unwrapping to nil

Upvotes: 1

Views: 1740

Answers (2)

Mehrdad
Mehrdad

Reputation: 1208

Probably, You are not instantiating your ViewController properly. make sure if you're instantiating your VC from storybaord you are doing it like this:

let storyboard = UIStoryboard(name: "YourStoryboardName", bundle: nil)
let someVC = storyboard.instantiateViewController(withIdentifier: "SomeViewController") as? SomeViewController

Upvotes: 0

pbasdf
pbasdf

Reputation: 21536

When you create your VCs like this,

var table1 = AllPlacesViewController()

they are not linked to the storyboard, so the outlets are not fulfilled. Use the instantiateViewControllerWithIdentifier method of self.storyboard instead:

var table1 : AllPlacesViewController = UIStoryboard(name: "Main", bundle: nil).instantiateViewControllerWithIdentifier("AllPlaces") as AllPlacesViewController

Upvotes: 7

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