Thread 1: Fatal error: Index out of range, return array.count + 1

Question

I have a tableview with at all times one cell. If there is data to download from Firebase it will put it in an array called posts. When there's for example, two "in my case" servers that the user will download, it will only display one cell instead of two. I thought I could fix this by changing return posts.count to return posts.count + 1 because of the one cell that will be shown at all times. But if I use return posts.count + 1 I will get a

Thread 1: Fatal error: Index out of range

error on line let post = posts[indexPath.row]. I have read about this error, but I can't seem to fix it.

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        if posts.count == 0 {
            self.tableView.setEmptyMessage("No Servers uploaded!")
            return 1
        } else {
            self.tableView.restore()
            return posts.count
        }
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        if indexPath.row == 0 {
            let cell = tableView.dequeueReusableCell(withIdentifier: "ProfileCell", for: indexPath) as! ProfileCellTableViewCell

            cell.delegate = self
            return cell
        }else {
            let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! TableViewCellMYposts

            cell.Map_image.image = nil
            let post = posts[indexPath.row]
            cell.post = post
            cell.delegate = self

            return cell
        }
    }

Instead of mixing with the count property, add an entry to your posts array with the content "No Servers uploaded!" when the firebase request has returned an empty result set. That way you don't need any hackish solutions — Joakim Danielson
– Joakim Danielson, Commented Jun 13, 2019 at 20:28

GntlmnBndt · Accepted Answer · 2019-06-13 20:27:09Z

1

Assuming you have some piece of data in posts[0], you are never actually displaying it. For indexPath.row = 0, you are displaying a profile cell, and then you start displaying the data from posts[1] and on. Change your problem line to: let post = posts[indexPath.row - 1]

answered Jun 13, 2019 at 20:27

GntlmnBndt

3592 silver badges6 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Thread 1: Fatal error: Index out of range, return array.count + 1

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related