Button state activates on wrong cells

Question

I added button into cell-s and added action so if user touches it then the state is \"Dislike\" and if user touches again the state is \"Like\". However, the state applies t

Answer 1

 var selectindex : Int?
  var selectedindex : NSMutableArray = NSMutableArray()
  @IBOutlet var tableview: UITableView!

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCellWithIdentifier("LikeCell", forIndexPath: indexPath)

        let like: UIButton = (cell.viewWithTag(2) as! UIButton)
        let comment: UIButton = (cell.viewWithTag(3) as! UIButton)
        if selectedindex.containsObject(indexPath.row) {
                like.setBackgroundImage(UIImage.init(named: "like.png"), forState: .Normal)
        }else{
                like.setBackgroundImage(UIImage.init(named: "like (1).png"), forState: .Normal)
        }
       comment.setBackgroundImage(UIImage(named: "chat.png"), forState: UIControlState.Normal)
        like.addTarget(self, action: #selector(self.CloseMethod(_:event:)), forControlEvents: .TouchDown)
        comment.addTarget(self, action: #selector(self.CloseMethod1(_:event:)), forControlEvents: .TouchDown)

        return cell

    }



 @IBAction func CloseMethod(sender: UIButton, event: AnyObject) {

        let touches = event.allTouches()!
        let touch = touches.first!
        let currentTouchPosition = touch.locationInView(self.tableview)
        let indexPath = self.tableview.indexPathForRowAtPoint(currentTouchPosition)!
        selectindex = indexPath.row
        if selectedindex.containsObject(selectindex!) {
            selectedindex.removeObject(selectindex!)
           // call your firebase method for update database 
        }else{
              selectedindex.addObject(selectindex!)
          // call your firebase method for update database
        }
        self.tableview.reloadData()
    }

Output :

https://www.dropbox.com/s/ub7wln5y6hdw0sz/like%20button.mov?dl=0

Answer 2

I think this issue is because of dequeuing your cell twice. you should try;

func like(sender: UIButton){
    //your code ...
    let cell: FeedTableViewCell = self.tableViewAddress.cellForRowAtIndexPath(indexPath) as! FeedTableViewCell
    //Your code ...

Answer 3

This is caused by reusing previous cells when scrolling and is the base mechanism of a table view.

You need to reset the state of your button on every call to cellForRowAtIndexPath.

Between let cell = ... and cell.starButton.addTarget you need to perform something like cell.starButton.deselect(), or .select(), based on the index path you're working on.