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iosswiftuitableviewviewwithtag

Everytime I scroll cell.viewWithTag will give fatal error while unwrapping found nil

I have a table view with cells everytime I scroll I get fatal error: unexpectedly found nil while unwrapping an Optional value

And it wil mark this code green: let button = cell.viewWithTag(1009) as! UIButton 

  override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell 
{ 
  let cell = tableView.dequeueReusableCellWithIdentifier("ChecklistItem") as! UITableViewCell 
  let label = cell.viewWithTag(1000) as! UILabel 
  let button = cell.viewWithTag(1009) as! UIButton 
  button.tag = indexPath.row        
  ...
 }
Solution

  • I fixed the problem by adding this if-clause:

      if button == nil{
        println("Do nothing");
    }else{
        button!.tag = indexPath.row

    }