---
title: NSFileProviderMaterializedSetDidChange
framework: fileprovider
role: symbol
role_heading: Global Variable
path: fileprovider/nsfileprovidermaterializedsetdidchange
---

# NSFileProviderMaterializedSetDidChange

A notification that the system posts when the set of materialized items changes for your file provider extension.

## Declaration

```occ
extern NSNotificationName const NSFileProviderMaterializedSetDidChange;
```

## Mentioned in

Synchronizing the File Provider Extension

## See Also

### Global variables

- [NSFileProviderDomainDidChange](fileprovider/nsfileproviderdomaindidchange.md)
- [NSFileProviderPendingSetDidChange](fileprovider/nsfileproviderpendingsetdidchange.md)