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# NSPreviewRepresentingActivityItem

A type that adds metadata to an item you share using the macOS share sheet.

```
class NSPreviewRepresentingActivityItem
```

## Overview

An [`NSPreviewRepresentingActivityItem`](/documentation/AppKit/NSPreviewRepresentingActivityItem) object provides a concrete implementation of the [`NSPreviewRepresentableActivityItem`](/documentation/AppKit/NSPreviewRepresentableActivityItem) protocol. Use it to create shareable items for common types such as strings or images, or when you don’t want to adopt the [`NSPreviewRepresentableActivityItem`](/documentation/AppKit/NSPreviewRepresentableActivityItem) protocol directly in your app’s objects. To share the item from your app, initialize the [`NSSharingServicePicker`](/documentation/AppKit/NSSharingServicePicker) object with this object.

> Note:
> If your data consists of a URL, pass that URL directly to the sharing service picker instead of using this class.

## Topics

### Creating a Preview Activity Item

[`init(item:title:image:icon:)`](/documentation/AppKit/NSPreviewRepresentingActivityItem/init(item:title:image:icon:))

Creates a metadata object with the title, image, and icon for a shareable item.

[`init(item:title:imageProvider:iconProvider:)`](/documentation/AppKit/NSPreviewRepresentingActivityItem/init(item:title:imageProvider:iconProvider:))

Creates a metadata object that provides a title and images for a shareable item.


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