The custom user interface used to perform a selected action.
- iOS 11.0+
Subclass this view controller to provide the user interface for your actions.
No matter how many actions you define, your File Provider UI extension has only one
FPUIAction subclass. When the user selects one of your actions, the system instantiates a copy of your subclass, calls its
prepare(for method, and presents it to the user.
Your subclass must do the following:
prepare(formethod to check the action identifiers and present an appropriate user interface for the selected actions.
Action: item Identifiers:)
Provide some sort of feedback, even if the action doesn't require interaction with the user. For example, present a view that quickly fades out and automatically completes the action.