topLayoutGuide is incorrect if child view controller has origin.x < 0
| Originator: | david.arve | ||
| Number: | rdar://35877771 | Date Originated: | December 6 2017 |
| Status: | Open | Resolved: | |
| Product: | UIKit | Product Version: | iOS 10 |
| Classification: | UI/Usability | Reproducible: | Always |
This does not affect iOS 11.
Summary:
For iOS <11 the `-[UIViewController topLayoutGuide]` is not calculated correctly within a container view controller which has a child view controller which is a `UINavigationController` with a frame where origin.x < 0. The top view controller of the navigation controller will have an incorrect `topLayoutGuide`.
Steps to Reproduce:
Launch the attached project on a iOS 9/10 device/simulator in Portrait.
If you change line 57 in `ContainerViewController` to have a none-negative x-origin, you will see the expected result.
```
leftFrame.origin.x -= 1; // If x < 0 the topLayoutGuide is not calculated correctly
```
Expected Results:
The left view should have a 20pt border to the navigation bar.
Actual Results:
The left view has no border to the navigation bar
Version/Build:
Xcode Version 9.0.1 (9A1004)
Configuration:
MacBook Pro (Retina, 15-inch, Mid 2015)
macOS 10.13.2 Beta (17C85a)
Comments
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