UITableView - scroll to the top

UITableView is a subclass of UIScrollView, so you can also use:

[mainTableView scrollRectToVisible:CGRectMake(0, 0, 1, 1) animated:YES];

Or

[mainTableView setContentOffset:CGPointZero animated:YES];

And in Swift:

mainTableView.setContentOffset(CGPointZero, animated:true)

And in Swift 3 & above:

mainTableView.setContentOffset(.zero, animated: true)

Note: This answer isn't valid for iOS 11 and later.

I prefer

[mainTableView setContentOffset:CGPointZero animated:YES];

If you have a top inset on your table view, you have to subtract it:

[mainTableView setContentOffset:CGPointMake(0.0f, -mainTableView.contentInset.top) animated:YES];

Possible Actions:

1

func scrollToFirstRow() {    let indexPath = NSIndexPath(forRow: 0, inSection: 0)    self.tableView.scrollToRowAtIndexPath(indexPath, atScrollPosition: .Top, animated: true)}

2

func scrollToLastRow() {    let indexPath = NSIndexPath(forRow: objects.count - 1, inSection: 0)    self.tableView.scrollToRowAtIndexPath(indexPath, atScrollPosition: .Bottom, animated: true)}

3

func scrollToSelectedRow() {    let selectedRows = self.tableView.indexPathsForSelectedRows    if let selectedRow = selectedRows?[0] as? NSIndexPath {        self.tableView.scrollToRowAtIndexPath(selectedRow, atScrollPosition: .Middle, animated: true)    }}

4

func scrollToHeader() {    self.tableView.scrollRectToVisible(CGRect(x: 0, y: 0, width: 1, height: 1), animated: true)}

5

func scrollToTop(){    self.tableView.setContentOffset(CGPointMake(0,  UIApplication.sharedApplication().statusBarFrame.height ), animated: true)}

Disable Scroll To Top:

func disableScrollsToTopPropertyOnAllSubviewsOf(view: UIView) {    for subview in view.subviews {        if let scrollView = subview as? UIScrollView {            (scrollView as UIScrollView).scrollsToTop = false        }        self.disableScrollsToTopPropertyOnAllSubviewsOf(subview as UIView)    }}

Modify and use it as per requirement.

Swift 4

  func scrollToFirstRow() {    let indexPath = IndexPath(row: 0, section: 0)    self.tableView.scrollToRow(at: indexPath, at: .top, animated: true)  }