overrideTraitCollection(forChild:)

Declaration

func overrideTraitCollection(forChild childViewController: UIViewController) -> UITraitCollection?

Parameters

• childViewController:

  The view controller who’s trait collection is to be returned.

Return Value

The trait collection for the designated view controller.

Discussion

Use this method to retrieve the trait collection for a child view controller. You can then modify the trait collection for the designated child view controller and set it using the setOverrideTraitCollection(_:forChild:) method.

See Also

Deprecated methods

• setOverrideTraitCollection(_:forChild:)
• attemptRotationToDeviceOrientation()
• registerForPreviewing(with:sourceView:)
• unregisterForPreviewing(withContext:)
• canPerformUnwindSegueAction(_:from:withSender:)
• didRotate(from:)
• dismissMoviePlayerViewControllerAnimated()
• forUnwindSegueAction(_:from:withSender:)
• presentMoviePlayerViewControllerAnimated(_:)
• rotatingFooterView()
• rotatingHeaderView()
• segueForUnwinding(to:from:identifier:)
• shouldAutomaticallyForwardRotationMethods()
• willAnimateRotation(to:duration:)
• willRotate(to:duration:)