behavior
The actual level of Writing Tools support the system provides for your view.
Declaration
var behavior: UIWritingToolsBehavior { get }Discussion
The system chooses this value based on the device capabilities, and takes the value in the preferredBehavior property into consideration when making the choice. The value in this property is never the default option, and is instead one of the specific options such as UIWritingToolsBehavior.none, UIWritingToolsBehavior.limited, or UIWritingToolsBehavior.complete.