Initializes the response object with the specified code and user activity object.
- iOS 10.0+
- Mac Catalyst 13.0+
- watchOS 3.2+
The response code indicating your success or failure in handling the intent. For a list of possible values, see
Payment Intent Response Code
The user activity object to use when launching your app. Provide an object if you want to add information that is specific to your app. If you specify
nil, the system automatically creates a user activity object for you, sets its type to the class name of the intent being handled, and fills it with an
INInteractionobject containing the intent and your response.
An initialized response object or
nil if the object could not be created.