UITableView dynamic cell heights only correct after some scrolling

Question

I have a UITableView with a custom UITableViewCell defined in a storyboard using auto layout. The cell has several multiline UILabels.

Answer 1

calling cell.layoutIfNeeded() inside cellForRowAt worked for me on ios 10 and ios 11, but not on ios 9.

to get this work on ios 9 also, I call cell.layoutSubviews() and it did the trick.