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# navigationDocument(_:preview:)

Configures the view’s document for purposes of navigation.

```
nonisolated func navigationDocument<D, I>(_ document: D, preview: SharePreview<I, Never>) -> some View where D : Transferable, I : Transferable
```

## Parameters

`document`

The transferable content associated to the
navigation title.

`preview`

The preview of the document to use when sharing.

## Discussion

In iOS, iPadOS, this populates the title menu with a header
previewing the document. In macOS, this populates a proxy icon.

Refer to the <doc:Configure-Your-Apps-Navigation-Titles> article
for more information on navigation document modifiers.

---

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