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# dragInteraction(_:prefersFullSizePreviewsFor:)

Asks the delegate whether the preview should appear in its original size or a scaled size.

```
optional func dragInteraction(_ interaction: UIDragInteraction, prefersFullSizePreviewsFor session: any UIDragSession) -> Bool
```

## Parameters

`interaction`

The interaction that called this method.

`session`

The current drag session.

## Return Value

<doc://com.apple.documentation/documentation/Swift/true> to tell the system the preview should appear in its original size; otherwise <doc://com.apple.documentation/documentation/Swift/false>, which is the default if you don’t provide this method.

## Discussion

The return value is a recommendation to the system. The system may choose to scale the preview to a smaller size, according to its own rules, even if you return <doc://com.apple.documentation/documentation/Swift/true>.

---

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