Create tableView by storyboard use custom tableViewCell form xib get Assertion failure

Question

Create tableView by storyboard, and in the tableView delegate method:tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell occurs a exception:

*** Assertion failure in -[UITableView dequeueReusableCellWithIdentifier:forIndexPath:],
   /BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit_Sim/UIKit-3599.6/UITableView.m:6593

my code is below:

ViewController11

@IBOutlet weak var tableView: UITableView!  // tableView

// tableview delegate
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    let cell_id: String = "cell_id"
    // this line below occurs exception: Thread 1:breakpoint 5.2
    var cell: TableViewCell2 = tableView.dequeueReusableCell(withIdentifier: cell_id, for: indexPath) as!  TableViewCell2

    if cell == nil {

        // 
    }

    var title = dataSource[indexPath.row]

    cell.titlelabel?.text = String(title)


    return cell
}

and my storyboard for ViewController11:

and my xib for TableViewCell2:

see this once http://stackoverflow.com/questions/12737860/assertion-failure-in-dequeuereusablecellwithidentifierforindexpath — Anbu.Karthik, Oct 27 '16 at 08:08
before dequeuing the cell you need to register its `class` or `nib` with the `tableView`. — Adeel Miraj, Oct 27 '16 at 08:13

d.felber · Accepted Answer · 2016-10-27T08:26:01.673

0

You have to register your UITableViewCell from the xib before you can use it:

Swift 2:

override func viewDidLoad() {
    super.viewDidLoad()
    self.tableView.registerNib(UINib(nibName: "TableViewCell2", bundle: NSBundle.mainBundle()), forCellReuseIdentifier: "cell_id")
}

Swift 3:

override func viewDidLoad() {
    super.viewDidLoad()
    self.tableView.register(UINib(nibName: "TableViewCell2", bundle: Bundle.main), forCellReuseIdentifier: "cell_id")
}

edited Oct 27 '16 at 08:26

answered Oct 27 '16 at 08:14

d.felber

5,288
1
21
36

in swift3 `NSBundle.mainBundle()` shold be replace to `Bundle.main` – aircraft Oct 27 '16 at 08:22
Added the Swift 3 solution. // @aircraft – d.felber Oct 27 '16 at 08:28

Create tableView by storyboard use custom tableViewCell form xib get Assertion failure

1 Answers1