Custom cell: fatal error: unexpectedly found nil while unwrapping an Optional value

Question

I have a table view with custom cell that was created as .xib . I didnt use storyboard. I have a problem that I couldnt fill my table with the data which came from webservice result. Also, I have 4 labels in the custom cell. In my custom cell class, when I try to set labels for each items, It gives me fatal error like above.

Here is my code:

class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
...

func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath!) -> UITableViewCell!
{
        let cell: ItemManagementTVCell = tableView?.dequeueReusableCellWithIdentifier("cell") as ItemManagementTVCell

    if let ip = indexPath
    {
        let item: Item = self.itemList[indexPath.row] as Item
        cell.setCell(item.itemName, status: item.itemStatus, duration: item.itemDuration, price: item.itemPrice)
    }
    return cell
}
}

And my custom cell class is here :

import UIKit

class ItemManagementTVCell: UITableViewCell {

    @IBOutlet var lblItemName: UILabel!
    @IBOutlet var lblItemPrice: UILabel!
    @IBOutlet var lblItemDuration: UILabel!
    @IBOutlet var lblItemStatus: UILabel!

    override func awakeFromNib()
    {
        super.awakeFromNib()
    }

    override func setSelected(selected: Bool, animated: Bool)
    {
        super.setSelected(selected, animated: animated)
    }

    func setCell(name: String, status: Int, duration: Int, price: Int)
    {
        self.lblItemName.text     = name
        self.lblItemStatus.text   = String(status)
        self.lblItemDuration.text = "Duration: \(String(duration)) months"
        self.lblItemPrice.text    = String(price) + " $"
    }
}

I am getting the error inside of "setCell" method block.

I have read a lot of questions and solutions and I tried all of them it doesnt work for me.

Thank you for your answers,

Best regards.

SOLUTION: I've solved this problem by linking the cell items to cell's own instead of linking to File's Owner. My problem has gone by doing this.

This is very simple, I'll explain it step by step 1-) Click your cell 2-) click the connections inspector which is located in "Hides or show Utilities" menu on the right side. 3-) Click the File's Owner, if there is any connected items, delete all of them. Then click cell view and connect your cell items there. Note: I did not use storyboard. This solution for xibs. @neosergio — serhanaksut, Nov 27 '14 at 13:17
I had a similar problem with this code getting "fatal error, unexpectedly found nil". But it was crazy because if I inserted... print(indexPath) print(tableView) I could clearly see that neither was nil. Even worse, it was an intermittent problem. Sometimes it worked and other times it didn't. — Dave G, Feb 24 '16 at 15:02

Lawliet · Answer 1 · 2017-07-10T03:01:57.113

9

Another solution to the problem without having to link cell items to the cell owner:

let nib = UINib(nibName: "YOUR_CUSTOM_CELL_NIB_NAME", bundle: nil)
tableView.register(nib, forCellReuseIdentifier: "YOUR_CUSTOM_CELL_ID")

edited Jul 10 '17 at 03:01

answered Feb 08 '17 at 04:18

Lawliet

3,212
1
14
25

Thiago Magalhaes · Answer 2 · 2014-08-29T14:14:43.320

7

Your "cell" must be nil.

Using

tableView.dequeueReusableCellWithIdentifier("cell") as ItemManagementTVCell

Can return nil. You should use:

tableView.dequeueReusableCellWithIdentifier("cell" forIndexPath:indexPath) as ItemManagementTVCell

This way it guarantees cells is not nil.

EDIT: Maybe you can prevent the crash by putting if statements inside "setCell"

if var itemName = self.lblItemName {
    itemName.text = name
}

Do that for every label you set inside it and check if the crash still happens. If it don't you must check why those labels are nil.

edited Aug 29 '14 at 14:14

answered Aug 29 '14 at 13:48

Thiago Magalhaes

859
9
11

Can you put a breakpoint inside setCell block and check if something inside is "nil"? – Thiago Magalhaes Aug 29 '14 at 13:58
I think the problem is related to labels becasue when I initialize the labels, it doesnt throw any exception, but there is not any item in tableview. It is empty. Are there any error related to labels ? – serhanaksut Aug 29 '14 at 14:05
I edited the answer with a possible solution. Check that please. – Thiago Magalhaes Aug 29 '14 at 14:14
I have tried, but it doesnt work still :( Thank you for your answers. – serhanaksut Aug 29 '14 at 14:24
1

Check those links and see if it helps: http://stackoverflow.com/questions/24643522/swift-fatal-error-unexpectedly-found-nil-while-unwrapping-an-optional-value http://stackoverflow.com/questions/24715343/fatal-error-unexpectedly-found-nil-while-unwrapping-an-optional-value-in-swift – Thiago Magalhaes Aug 29 '14 at 14:25

Custom cell: fatal error: unexpectedly found nil while unwrapping an Optional value

2 Answers2

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