UIScrollView setContentOffset:animated not working in iOS11

Question

I added a method to make the scroll view to scroll to top of it. This is working as expected in iOS10. But when I upgraded to iOS11 with Xcode 9, it is not working. Is there anything that am missing respective to iOS11.
Below code was working:

[self setContentOffset:CGPointZero animated:YES];

Updating question after comment from OP (UPDATE)

I find the reason why setContentOffset:animated is not working, I use UITableView and I make some custom cell in my tableview, tableview has a property "estimatedRowHeight" , we should make this property equal "0", I guess when iOS11 calculate it's content size it will use "estimatedRowHeight", if we don't set this property , it will use system default.

This is very useful and should be more visible

Answer 1

Try this

if tableView.numberOfRows(inSection: 0) > 0 {
    tableView.scrollToRow(at: IndexPath(row: 0, section: 0), at: .top, animated: false)
}

Answer 2

You have to do

self.view.layoutIfNeeded()

before setContentOffset. It updates the contentSize of UIScrollView and then contentOffset is available.

Answer 3

Setting estimatedRowHeight = 0, estimatedSectionHeaderHeight = 0, estimatedSectionFooterHeight = 0 for the scrollview solved the issue. whenever the content offset is changed, the heights of rows, header and footers of each section is calculated by the UIKit to scroll to the new offset. estimatedRowHeight, estimatedSectionHeaderHeight, estimatedSectionFooterHeight will be -1 by default

Answer 4

(SWIFT 4) I had a similar problem, the problem was the animated : true. So, you can try by doing this manually:

view.layoutIfNeeded()
UIView.animate(withDuration: 0.2) {
   self.scroll.setContentOffset(.zero, animated: false)
}

Hope it helps. It fixed for me