Swift - Allow ONLY one checkbox selected inside a UITableViewCell

Question

I am trying to achieve to make my TableView only accept one checkbox per cell.

I have used this solution to save User Defaults for the checkmarks which works fine but it allow multiple selections.

I have tried so many solutions on Stack overflow but since this is formatted a little different I was unable to use those solutions.

Things I have tried which did not work:

Tried setting the accessory type to none at the didDeselectRowAt

func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {
   tableView.cellForRow(at: indexPath)?.accessoryType = .none 
}

Tried setting the table view to not allow multiple selections on the viewDidNotLoad

override func viewDidLoad()
{
    tableViewName.allowsMultipleSelection = false
}

Based the solution I linked, how would I go to only allow a single selection?

score 1 · Accepted Answer · answered Dec 13 '19 at 15:47

In the solution you have linked there is this code in the 'didSelect' function

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) 
{
    if selectedRows.contains(indexPath.row) {
        self.selectedRows = selectedRows.filter{$0 != indexPath.row}
    }else{
        self.selectedRows.append(indexPath.row)
    }
    UserDefaults.standard.set(selectedRows, forKey: "selectedRows")
}

If you only want a single checkbox to be selected then you only want a single entity saved in your selectedRows object. Change the above code to:

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) 
{
    self.selectedRows = [indexPath.row]

    UserDefaults.standard.set(selectedRows, forKey: "selectedRows")
}

Then every time a checkbox is selected it will clear out all the other selected checkboxes and select only the checkbox you just clicked.

Swift - Allow ONLY one checkbox selected inside a UITableViewCell

1 Answers1