<!--
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  "framework" : "AppKit",
  "identifier" : "/documentation/AppKit/NSDocument/updateUserActivityState(_:)",
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  "role" : "Instance Method",
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    "modules" : [
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  "title" : "updateUserActivityState(_:)"
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-->

# updateUserActivityState(_:)

Updates the state of the given user activity.

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

## Parameters

`activity`

The user activity to be updated.

## Discussion

The default implementation of this method puts the document’s [`fileURL`](/documentation/AppKit/NSDocument/fileURL) into the <doc://com.apple.documentation/documentation/Foundation/NSUserActivity> object’s <doc://com.apple.documentation/documentation/Foundation/NSUserActivity/userInfo> dictionary with the [`NSUserActivityDocumentURLKey`](/documentation/AppKit/NSUserActivityDocumentURLKey). [`NSDocument`](/documentation/AppKit/NSDocument) automatically sets the <doc://com.apple.documentation/documentation/Foundation/NSUserActivity/needsSave> property of the <doc://com.apple.documentation/documentation/Foundation/NSUserActivity> to <doc://com.apple.documentation/documentation/Swift/true> when the [`fileURL`](/documentation/AppKit/NSDocument/fileURL) changes.

## See Also

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

An abstract class that defines the interface for macOS documents.


---

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