When is the size class properly set?...

Wrong frame for view in tableView.tableHeaderView after a second rotation...

Xcode simulator not calling traitCollectionDidChange...

UIView frame not updated during traitCollectionDidChange...

I`ve read that MVC can find out its size class environment via this method in UIViewController...

How to create UITraitCollection with both size classes in code?...

Reorganizing Toolbar and NavigationBar after TraitCollectionDidChange...

traitCollection.horizontalSizeClass reports Compact on iOS 8.1, Regular on iOS 8.4 and 9.x...

Adaptive UIPresentationController Based on View Size...

iOS8 change UIPopoverPresentationController trait collection...

UITraitCollection - swift to objective-C...

Prevent a UIPopover from being presented as UIPageSheet on iPhone 6 plus in landscape...