- iOS 8.0+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
Used when an object has a trait collection, but it is not in an environment yet. For example, a view that is created, but not put into a view hierarchy.
An interface designed for iPhone and iPod touch.
An interface designed for tvOS and Apple TV.
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.Learn more about using Apple's beta software