---
title: "photoLibraryDidBecomeUnavailable(_:)"
framework: photos
role: symbol
role_heading: Instance Method
path: "photos/phphotolibraryavailabilityobserver/photolibrarydidbecomeunavailable(_:)"
---

# photoLibraryDidBecomeUnavailable(_:)

Tells the observer that the photo library’s availability changed.

## Declaration

```swift
func photoLibraryDidBecomeUnavailable(_ photoLibrary: PHPhotoLibrary)
```

## Parameters

- `photoLibrary`: The photo library whose availability changed.