Updates the custom input and accessory views when the object is the first responder.
- iOS 3.2+
- Mac Catalyst 13.0+
- tvOS 9.0+
You can use this method to refresh the custom input view or input accessory view associated with the current object when it is the first responder. The views are replaced immediately—that is, without animating them into place. If the current object is not the first responder, this method has no effect.