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# NSFileProviderEnumerationObserver

An observer that receives batches of items during enumeration.

```
protocol NSFileProviderEnumerationObserver : NSObjectProtocol
```

## Topics

### Observing Item Enumeration

[`didEnumerate(_:)`](/documentation/FileProvider/NSFileProviderEnumerationObserver/didEnumerate(_:))

Provides a batch of enumerated items.

[`finishEnumerating(upTo:)`](/documentation/FileProvider/NSFileProviderEnumerationObserver/finishEnumerating(upTo:))

Tells the observer that all of the items have been enumerated up to the specified page.

[`finishEnumeratingWithError(_:)`](/documentation/FileProvider/NSFileProviderEnumerationObserver/finishEnumeratingWithError(_:))

Tells the observer that an error occurred during item enumeration.

[`suggestedPageSize`](/documentation/FileProvider/NSFileProviderEnumerationObserver/suggestedPageSize)

The page size that the system recommends.


---

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