Open Radar

 
Summary:
When calling `self.topLayoutGuide` in a UITableViewController either in `scrollViewDidScroll:` or in `viewDidLayoutSubviews`, the table view will get a `contentSize` of 0,0, resulting in it not being able to scroll. It doesn't matter what you do with the resulting value of `topLayoutGuide`, it is enough to simply call this method.

Steps to Reproduce:
0. Build and Run the example project. See the comments in `ViewController.m`. Both lines lead to the behaviour, it doesn't matter if you comment out one of the lines.

-- or --

1. Create a UITableViewController subclass
2. Add some table view cell logic, so that the view controller displays enough cells that the table view should scroll
3. Override either `viewDidLayoutSubviews` or `scrollViewDidScroll:` (or both) and call `self.topLayoutGuide` in them
4. Build and Run the project

Expected Results:
The table view can be scrolled without any issues. All cells are visible.

Actual Results:
The table view can not be scrolled, it starts bouncing immediately.

Version:
iOS 7.0.6 / 7.1

Notes:


Configuration:
iPhone 5S, iOS 7.0.6 / iPhone Simulator 7.1 / Xcode 5.1.1 (5B1008)