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# AVAssetContainsFragmentsDidChange

A notification the system posts when an asset’s fragments change.

```
static let AVAssetContainsFragmentsDidChange: NSNotification.Name
```

## Discussion

You can receive notifications of changes to an asset’s fragments after the system loads the value of an asset’s <doc://com.apple.documentation/documentation/AVFoundation/AVAsset/containsFragments> property, and you’ve added the asset to an instance of <doc://com.apple.documentation/documentation/AVFoundation/AVFragmentedAssetMinder>.

---

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