Demo for programmatic tableview scrolling. See http://grokswift.com/programmatic-uitableview-scrolling/

ScrollDemoViewController.swift

import UIKit

class ScrollDemoViewController: UITableViewController {
  var objects = [AnyObject]()

  override func awakeFromNib() {
    super.awakeFromNib()
  }

  override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
    let scrollOptionsButton = UIBarButtonItem(barButtonSystemItem: .Action, target: self, action: "showScrollOptions")
    self.navigationItem.rightBarButtonItem = scrollOptionsButton
    
    for number in 1...100 {
      self.objects.append(String(number))
    }
  }

  // MARK: - Table View

  override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return objects.count
  }

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

    if let object = objects[indexPath.row] as? String {
      cell.textLabel!.text = object
    }
    else {
      cell.textLabel!.text = nil
    }

    return cell
  }
  
  func showScrollOptions() {
    let sheet = UIAlertController(title: "Where to", message: "Where would you like to scroll to?", preferredStyle: .ActionSheet)
    
    // Cancel
    let cancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel, handler:{ (alert: UIAlertAction) in
        self.dismissViewControllerAnimated(true, completion: nil)
    });
    sheet.addAction(cancelAction)
    
    // Scroll to Top
    let firstRowAction = UIAlertAction(title: "First Row", style: UIAlertActionStyle.Default, handler:{ (alert: UIAlertAction) in
      self.scrollToFirstRow()
      self.dismissViewControllerAnimated(true, completion: nil)
    });
    sheet.addAction(firstRowAction)

    // Last Row
    let lastRowAction = UIAlertAction(title: "Last Row", style: UIAlertActionStyle.Default, handler:{ (alert: UIAlertAction) in
      self.scrollToLastRow()
      self.dismissViewControllerAnimated(true, completion: nil)
    });
    sheet.addAction(lastRowAction)
    
    // Selected Row
    let selectedRowAction = UIAlertAction(title: "Selected Row", style: UIAlertActionStyle.Default, handler:{ (alert: UIAlertAction) in
      self.scrollToSelectedRow()
      self.dismissViewControllerAnimated(true, completion: nil)
    });
    sheet.addAction(selectedRowAction)
    
    // Above Header
    let topAction = UIAlertAction(title: "Header", style: UIAlertActionStyle.Default, handler:{ (alert: UIAlertAction) in
      self.scrollToHeader()
      self.dismissViewControllerAnimated(true, completion: nil)
    });
    sheet.addAction(topAction)
    
    self.presentViewController(sheet, animated: true, completion: nil)
  }
  
  func scrollToFirstRow() {
    let indexPath = NSIndexPath(forRow: 0, inSection: 0)
    self.tableView.scrollToRowAtIndexPath(indexPath, atScrollPosition: .Top, animated: true)
  }
  
  func scrollToLastRow() {
    let indexPath = NSIndexPath(forRow: objects.count - 1, inSection: 0)
    self.tableView.scrollToRowAtIndexPath(indexPath, atScrollPosition: .Bottom, animated: true)
  }
  
  func scrollToSelectedRow() {
    let selectedRows = self.tableView.indexPathsForSelectedRows
    if let selectedRow = selectedRows?[0] as? NSIndexPath {
      self.tableView.scrollToRowAtIndexPath(selectedRow, atScrollPosition: .Middle, animated: true)
    }
  }
  
  func scrollToHeader() {
    self.tableView.scrollRectToVisible(CGRect(x: 0, y: 0, width: 1, height: 1), animated: true)
  }
}