UITableView Checkmarks disappear when scrolling

Question

I have to make checkmarks on a tableView, but if I\'m scrolling and one check marked cell is not visible and I scroll back the checkmark disappeared.

While running

Answer 1

Create an Array of tuples to store row and section values:

var selectedCells:[(row: Int, section: Int)] = []

In your cellForRowAtIndexPath, check if you have any selectedCellValues. If so, add an accessoryType for that cell and break out of the loop,

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell{

    let cell = tableView.dequeueReusableCellWithIdentifier("SettingsCell", forIndexPath: indexPath) as SettingsCustomCell

    var rowNums:NSNumber = indexPath.row
    var sectionNums:NSNumber = indexPath.section

    var selectedRow:Int
    var selectedSection:Int

    if(selectedCells.count > 0){
        for tuple in selectedCells{

            selectedRow = tuple.row
            selectedSection = tuple.section

            if(selectedRow == rowNums && selectedSection == sectionNums){
                cell.accessoryType = UITableViewCellAccessoryType.Checkmark
                break
            }else{
                cell.accessoryType = UITableViewCellAccessoryType.None
            }
        }
    }else{
        cell.accessoryType = UITableViewCellAccessoryType.None
    }

    var keyValue = listOfSectionTitles[indexPath.section]
    var items: [NSString] = dictionaryOfCellTitles.objectForKey(keyValue) as [NSString]

    cell.textLabel?.text = items[indexPath.row]
    return cell
}

Handle selectedcellvalues in didSelecteRowAtIndexPath:

func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {

    let cell = tableView.cellForRowAtIndexPath(indexPath)

    if(cell?.accessoryType == UITableViewCellAccessoryType.None){
        cell?.accessoryType = UITableViewCellAccessoryType.Checkmark
        selectedCells.append(row:indexPath.row, section:indexPath.section)
    }else{
        var rowToDelete = indexPath.row
        var sectionToDelete = indexPath.section

        for var i=0; i < selectedCells.count; i++
        {
            if(rowToDelete == selectedCells[i].row && sectionToDelete == selectedCells[i].section){
                selectedCells.removeAtIndex(i)
                cell?.accessoryType = UITableViewCellAccessoryType.None
            }
        }
    }
    tableView.deselectRowAtIndexPath(indexPath, animated: true)
}