iOS 8 Auto cell height - Can't scroll to last row

Question

I am using iOS 8 new self-sizing cells. Visually it works good - each cell gets its right size. However, if I try to scroll to the last row, the table view

Answer 1

Use this simple code to scroll bottom

 var rows:NSInteger=self.tableName.numberOfRowsInSection(0)
        if(rows > 0)
        {
            let indexPath = NSIndexPath(forRow: rows-1, inSection: 0)
            tableName.scrollToRowAtIndexPath(indexPath , atScrollPosition:  UITableViewScrollPosition.Bottom, animated: true)
        }
            }