<!--
{
  "availability" : [
    "iOS: 13.0.0 -",
    "iPadOS: 13.0.0 -",
    "macCatalyst: 13.0.0 -",
    "macOS: 10.15.0 -",
    "tvOS: 13.0.0 -",
    "visionOS: 1.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "PhotoKit",
  "identifier" : "/documentation/Photos/PHPhotoLibraryAvailabilityObserver/photoLibraryDidBecomeUnavailable(_:)",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Method",
  "symbol" : {
    "kind" : "Instance Method",
    "modules" : [
      "Photos"
    ],
    "preciseIdentifier" : "c:objc(pl)PHPhotoLibraryAvailabilityObserver(im)photoLibraryDidBecomeUnavailable:"
  },
  "title" : "photoLibraryDidBecomeUnavailable(_:)"
}
-->

# photoLibraryDidBecomeUnavailable(_:)

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

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

## Parameters

`photoLibrary`

The photo library whose availability changed.

---

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