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  "title" : "updateUserActivityState(_:)"
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# updateUserActivityState(_:)

Updates the state of the given user activity.

```
func updateUserActivityState(_ userActivity: NSUserActivity)
```

## Parameters

`userActivity`

The user activity to be updated.

## Discussion

Subclasses override this method to update the state of the supplied `userActivity`. Add state representing the user’s activity into `userActivity` using its <doc://com.apple.documentation/documentation/Foundation/NSUserActivity/addUserInfoEntries(from:)> method. When the state is dirty, set the <doc://com.apple.documentation/documentation/Foundation/NSUserActivity/needsSave> property to <doc://com.apple.documentation/documentation/Swift/true>.

When an <doc://com.apple.documentation/documentation/Foundation/NSUserActivity> object managed by AppKit is updated, an empty `userInfo` dictionary is given to the user activity, and all of the objects associated with the user activity are sent an [`NSResponder`](/documentation/AppKit/NSResponder) message.

## See Also

[`NSResponder`](/documentation/AppKit/NSResponder)

An abstract class that forms the basis of event and command processing in AppKit.


---

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