UITableView - scroll to the top

Question

In my table view I have to scroll to the top. But I cannot guarantee that the first object is going to be section 0, row 0. May be that my table view will start from section

Answer 1

Swift 4 via extension, handles empty table view:

extension UITableView {
    func scrollToTop(animated: Bool) {
        self.setContentOffset(CGPoint.zero, animated: animated);
    }
}

Answer 2

If you i would like move scroll animation in the table, use this code. The scroll move to top with animation in .5 seconds.

[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.5];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];

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

[UIView commitAnimations];

Answer 3

This code let's you scroll a specific section to top

CGRect cellRect = [tableinstance rectForSection:section];
CGPoint origin = [tableinstacne convertPoint:cellRect.origin 
                                    fromView:<tableistance>];
[tableinstance setContentOffset:CGPointMake(0, origin.y)];

Answer 4

Swift :

if you don't have tableView header :

tableView.setContentOffset(CGPointMake(0,  UIApplication.sharedApplication().statusBarFrame.height ), animated: true)

if so :

tableView.setContentOffset(CGPointMake(0, -tableViewheader.frame.height   + UIApplication.sharedApplication().statusBarFrame.height ), animated: true)

Answer 5

Here Is The Code To ScrollTableView To Top Programatically

Swift:

self.TableView.setContentOffset(CGPointMake(0, 1), animated:true)

Answer 6

DONT USE

 tableView.setContentOffset(.zero, animated: true)

It can sometimes set the offset improperly. For example, in my case, the cell was actually slightly above the view with safe area insets. Not good.

INSTEAD USE

 tableView.scrollToRow(at: IndexPath(row: 0, section: 0), at: .top, animated: true)