---
title: ALAssetsLibraryAccessFailureBlock
framework: assetslibrary
role: symbol
role_heading: Type Alias
path: assetslibrary/alassetslibraryaccessfailureblock
---

# ALAssetsLibraryAccessFailureBlock

Signature for the block executed if the user does not grant access to the caller to access the data managed by the framework.

## Declaration

```occ
typedef void (^)(NSError *) ALAssetsLibraryAccessFailureBlock;
```

## Discussion

Discussion The block parameter is defined as follows: This block type is used by ALAssetsLibrary/asset(for:resultBlock:failureBlock:) and ALAssetsLibrary/enumerateGroups(withTypes:using:failureBlock:).

## See Also

### Constants

- [ALAssetsGroupType](assetslibrary/alassetsgrouptype.md)
- [Types of Asset](assetslibrary/types-of-asset.md)
- [ALAssetOrientation](assetslibrary/alassetorientation.md)
- [ALAssetsLibraryGroupsEnumerationResultsBlock](assetslibrary/alassetslibrarygroupsenumerationresultsblock.md)
- [ALAssetsLibraryAssetForURLResultBlock](assetslibrary/alassetslibraryassetforurlresultblock.md)
- [ALAssetsLibraryWriteImageCompletionBlock](assetslibrary/alassetslibrarywriteimagecompletionblock.md)
- [ALAssetsLibraryWriteVideoCompletionBlock](assetslibrary/alassetslibrarywritevideocompletionblock.md)
- [ALAssetsLibraryGroupResultBlock](assetslibrary/alassetslibrarygroupresultblock.md)
- [ALAuthorizationStatus](assetslibrary/alauthorizationstatus.md)
- [Notification Keys](assetslibrary/notification-keys.md)
- [Error Domain](assetslibrary/error-domain.md)
- [Error Codes](assetslibrary/error-codes.md)