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# applySnapshotUsingReloadData(_:completion:)

Resets the UI to reflect the state of the data in the snapshot without computing a diff or animating the changes, optionally executing a completion handler.

```
@MainActor @preconcurrency func applySnapshotUsingReloadData(_ snapshot: NSDiffableDataSourceSnapshot<SectionIdentifierType, ItemIdentifierType>, completion: (() -> Void)? = nil)
```

## Parameters

`snapshot`

The snapshot that reflects the new state of the data in the collection view.

`completion`

A closure to execute when the reload completes. This closure has no return value and takes no parameters. The system calls this closure from the main queue.

## Discussion

The system interrupts any ongoing item animations and immediately reloads the collection view’s content.

You can safely call this method from a background queue, but you must do so consistently in your app. Always call this method exclusively from the main queue or from a background queue.

---

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