Tableview cell button selection error - swift

Question

I have a tableview that contains a button in the left of cell. the run works well and when i select a button a made it change its image background. The problem is when I select a buttonButtonOne selection , it select other buttons when I scroll tableview down, Other buttons selected my code is this way:
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = self.tableview.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! PlayerCell
cell.BtnAdd.tag = indexPath.row
cell.BtnAdd.addTarget(self, action: #selector(CreateTeamTwo.PlayerAdded(_:)), forControlEvents: .TouchUpInside)
return cell
}
func PlayerAdded(sender: UIButton){
// let buttonTag = sender.tag
sender.setImage(UIImage(named: "btn_buy_minus.png"), forState: UIControlState.Normal)
}
can you help me please ?

Answer 1

Take one Array to store selected indexPaths Buttons tags. and in selector methods store all the sender tags and reload the tableView. and in cellForRow method check if current indexpath is contain in selected array then show minus image otherwise show plus image.
var selected = [Int]()
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = self.tableview.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! PlayerCell
cell.BtnAdd.tag = indexPath.row
cell.BtnAdd.addTarget(self, action: #selector(CreateTeamTwo.PlayerAdded(_:)), forControlEvents: .TouchUpInside)
if selected.contains(indexPath.row) {
cell.btn.setImage(UIImage(named: "btn_buy_minus.png"), forState: .Normal)
} else {
// here set the plus image
cell.btn.setImage(UIImage(named: "btn_buy_plus.png"), forState: .Normal)
}
return cell
}
func PlayerAdded(sender: UIButton){
selected.append(sender.tag)
self.tableView.reloadData()
}