UITableview Scrolls to Top on Reload

Question

I am facing problem in my app - you can post and edit your favorite places. After posting a post, or editing a specific post (UITableViewCell), UITableview is reloaded.

My problem is: the UITableview scrolls to the top after reloading. But that's not what I want. I want my view to stay on the cell / view where I was. But I don't know how to manage that.

Could you help me?

Answer 1

Igor's answer is correct if you are using dynamically resizable cells (UITableViewAutomaticDimension)

Here it is in swift 3:

    private var cellHeights: [IndexPath: CGFloat?] = [:]
    var expandedIndexPaths: [IndexPath] = []

    func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
        cellHeights[indexPath] = cell.frame.height
    }

    func tableView(_ tableView: UITableView, estimatedHeightForRowAt indexPath: IndexPath) -> CGFloat {
        if let height = cellHeights[indexPath] {
            return height ?? UITableViewAutomaticDimension
        }
        return UITableViewAutomaticDimension
    }


    func expandCell(cell: UITableViewCell) {
      if let indexPath = tableView.indexPath(for: cell) {
        if !expandedIndexPaths.contains(indexPath) {
            expandedIndexPaths.append(indexPath)
            cellHeights[indexPath] = nil
            tableView.reloadRows(at: [indexPath], with: UITableViewRowAnimation.automatic)
            //tableView.scrollToRow(at: indexPath, at: .top, animated: true)
        }
      }
    }