Why isn't the value assigned to the cell label of the static table?

Question

Created Sep ’20

Replies 4

Boosts 0

Participants 2

I create a Detail screen using a standard TableViewController. The TableView-Content option is Static Cells, the Table View Sell-Style option is Basic. The label is used by default, not custom. With the help of this line of code below, I try to pass a value to the label:

Code Block tableView.cellForRow(at: [0,0])?.textLabel?.text = item!.itemID

The value comes to the controller, I see it, but for some reason it is not displayed on the label and displays a nil in the debugger.

What could be the mistake?

Answered by Claude31 in 634159022

I tested, that works.

Are you sure you don't reload the table after setting the textLabel ?

Code Block tableView.cellForRow(at: [0,0])?.textLabel?.text = item!.itemID

Where do you call this ?

Boost

Answer 1

Claude31 OP

Sep ’20

Accepted Answer

I tested, that works.

Are you sure you don't reload the table after setting the textLabel ?

Code Block tableView.cellForRow(at: [0,0])?.textLabel?.text = item!.itemID

Where do you call this ?

0

Answer 2

John368 OP

Sep ’20

I tried to use both in the viewDidLoad() or in the viewVillAppear() methods, adding tableView.reloadData(). It still doesn't work.

Could you show me your full code?

0

Answer 3

Claude31 OP

Sep ’20

I did the test in existing code, in an IBAction that changes the cell height.

I just try to set the labelText of cell 0,0 to "Some test"
tableForItem2 is declared as IBOutlet

When I call cellForRow after reloadData(), I get cell label changed

Code Block     @IBAction func changeCellHeight(_ sender: UIButton) {
        
        highCells = !highCells	// Keeps state of cell height
        for iCell in 0..<numberOfCells {
            rowHeights[iCell] = highCells ? 100 : 44
        }
        tableForItem2.reloadData()
        tableForItem2.cellForRow(at: [0,0])?.textLabel?.text = "Some test"
    }

If I call reloadData() after cellForRow, I do not get cell changed

Code Block     @IBAction func changeCellHeight(_ sender: UIButton) {
        
        highCells = !highCells	// Keeps state of cell height
        for iCell in 0..<numberOfCells {
            rowHeights[iCell] = highCells ? 100 : 44
        }
        tableForItem2.cellForRow(at: [0,0])?.textLabel?.text = "Some test"
        tableForItem2.reloadData() // That reloads the original label, hiding "Some test"
    }

0

Answer 4

John368 OP

Sep ’20

Thank you very much! It looks unexpected, but it works

Could you please explain to me a little why the tableView.reloadData() method is called here before passing the value to the label? It is usually called after the changes in the cell.

0