How to scroll to top in IOS7 UITableView?

Question

In IOS6 I have the following code to scroll to the top of a UITableView

[tableView setContentOffset:CGPointZero animated:YES];

In IOS7 this

Answer 1

var indexPath = NSIndexPath(forRow: 0, inSection: 0)
self.sampleTableView.scrollToRowAtIndexPath(indexPath,
atScrollPosition: UITableViewScrollPosition.Top, animated: true)

or

self.sampleTableView.setContentOffset(CGPoint.zero, animated:false)