allowsMultipleSelection is not working in Swift? - uitableview

Question

I am more than frustrated as it has wasted lot of my time.
I don't know why allowsMultipleSelection is not working in my TableView?
What all things has to be done to make it work, I did but still no result.
Please take a look on my code and kindly let me know the issue.
override func viewDidLoad()
{
super.viewDidLoad()
// Do any additional setup after loading the view.
self.participantsTableView.allowsMultipleSelection = true
}
if tableView == participantsTableView
{
var cell = tableView.cellForRowAtIndexPath(indexPath)!
if cell.accessoryType == UITableViewCellAccessoryType.Checkmark
{
cell.accessoryType = UITableViewCellAccessoryType.None
}
else
{
cell.accessoryType == UITableViewCellAccessoryType.Checkmark
}
self.participantsTableView.reloadData()
}

Answer 1

You need to implement delegate method tableView:didDeselectRowAtIndexPath: and update cell's accessoryType in tableView:cellForRowAtIndexPath:.
like this:
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
if let cell = tableView.cellForRowAtIndexPath(indexPath) {
cell.accessoryType = .Checkmark
}
}
func tableView(tableView: UITableView, didDeselectRowAtIndexPath indexPath: NSIndexPath) {
if let cell = tableView.cellForRowAtIndexPath(indexPath) {
cell.accessoryType = .None
}
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("cellId", forIndexPath: indexPath) as UITableViewCell
cell.textLabel?.text = String(indexPath.row)
if let selectedPaths = tableView.indexPathsForSelectedRows() as? [NSIndexPath] {
let selected = selectedPaths.filter(){ $0 == indexPath }
if selected.count > 0 {
cell.accessoryType = .Checkmark
} else {
cell.accessoryType = .None
}
}
return cell
}