swift 3.0 multiple selection with Select All option - ios

Question

i have added data in table view and i have manually added "select all" option in to list at first position now when user select first option which is select all then all item in to list should be selected and deselected when choose same. i have tried code below but its not working so can any one help me to solve this
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let cell = ObjTableview.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! SelectUserCell
for i in 0 ..< self.getStudentName.count {
cell.btnCheckbox.setImage(UIImage(named: "selectedItem"), for: .normal)
print (i) //i will increment up one with each iteration of the for loop
}
}
var unchecked = true
#IBAction func btnCheckBoxClick(_ sender: Any) {
if unchecked == true {
//(sender as AnyObject).setImage(UIImage(named: "selectedItem"), for: .normal)
cell?.btnCheckbox.setImage(UIImage(named: "selectedItem"), for: .normal)
//unchecked = false
let cello = ObjTableview.cellForRow(at: indexPath!)
print(cello!)
ObjTableview.reloadData()
}else
{
//(sender as AnyObject).setImage(UIImage(named: "unSelectedItem"), for: .normal)
cell?.btnCheckbox.setImage(UIImage(named: "unSelectedItem"), for: .normal)
// unchecked = true
}
}

Answer 1

Jayprakash, You are almost there. You need to modify some lines -
Here is your modified code snippet
var unchecked:Bool = true
#IBAction func btnCheckBoxClick(_ sender: Any) {
if(unchecked){
unchecked = false
}
else{
unchecked = true
}
ObjTableview.reloadData()
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
if(indexPath.row == 0){
btnCheckBoxClick(sender: UIButton())
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{
let cell : SelectUserCell!
cell = tableView .dequeueReusableCell(withIdentifier: "SelectUserCell", for: indexPath) as! SelectUserCell
cell.selectionStyle = UITableViewCellSelectionStyle.none
if(unchecked){
cell.btnCheckbox.setImage(UIImage(named: "unSelectedItem"), for: .normal)
}
else{
cell.btnCheckbox.setImage(UIImage(named: "selectedItem"), for: .normal)
}
// Do your stuff here
return cell
}
Hop it will simplify your code structure.