---
title: activityItemsConfiguration
framework: uikit
role: symbol
role_heading: Instance Property
path: uikit/uiactivityitemsconfigurationproviding/activityitemsconfiguration
---

# activityItemsConfiguration

An object or value that specifies items to share.

## Declaration

```swift
var activityItemsConfiguration: (any UIActivityItemsConfigurationReading)? { get }
```

## Discussion

Discussion To offer a configuration for sharing through Siri or the toolbar in an app built with Mac Catalyst, override this property on the root view controller or a modal view controller. To provide a configuration when your app is displaying a UISplitViewController, implement this property on the detail view controller. To offer a configuration for sharing through a context menu, override this property on your UIView subclass, and attach a UIContextMenuInteraction to that view. note: When the user asks Siri to “share this” on iOS, if both activityItemsConfiguration and activityItemsConfigurationSource are nil, the system uses the webpageURL property on your app’s current userActivity to create shareable content. The system doesn’t offer this fallback behavior in an app built with Mac Catalyst.