objc_setEnumerationMutationHandler(_:)
Sets the current mutation handler.
Declaration
func objc_setEnumerationMutationHandler(_ handler: ((Any) -> Void)?)Parameters
- handler:
A function pointer to the new mutation handler.
Sets the current mutation handler.
func objc_setEnumerationMutationHandler(_ handler: ((Any) -> Void)?)A function pointer to the new mutation handler.