Why doesn't this support iOS6 when PureLayout says it supports iOS6 ?

[Clouds123]

What's stopping this from supporting iOS6 ?

[smileyborg]

Hi Richard,

This approach depends on the row height estimation facility (tableView.estimatedRowHeight) added to UITableView only in iOS 7.0. Without using row height estimation, auto layout cannot be used in table views larger than roughly a 15-20 cells without disastrous performance impact, as the row height for all rows will need to be calculated at first load.

Does that make sense?

[Clouds123]

Thanks for the quick reply.

Yes. While searching for possible solutions to the problem, I came across the following blog post which has some good info on the subject:

http://johnszumski.com/blog/auto-layout-for-table-view-cells-with-dynamic-heights

[smileyborg]

Yes, that blog post covers the same material originally posted here on StackOverflow.