requestViewController(completionHandler:)
Requests an audio unit’s custom view controller.
Declaration
func requestViewController(completionHandler: @escaping @Sendable (UIViewController?) -> Void)func requestViewController() async -> UIViewController?func requestViewController(completionHandler: @escaping @Sendable (NSViewController?) -> Void)func requestViewController() async -> NSViewController?Mentioned in
Discussion
The completion handler is called on a thread or dispatch queue internal to the audio unit’s implementation. If the audio unit does not implement a custom view controller, it returns nil. If it has a custom view controller, it instantiates the view controller and returns it. The custom view controller must be a subclass of AUViewController.