# ensureLocalAvailabilityOfAssetPacks:completionHandler: Ensures that the specified asset packs are available locally. ``` - (void) ensureLocalAvailabilityOfAssetPacks:(NSSet *) assetPacks completionHandler:(void (^)(NSError *error)) completionHandler; ``` ## Parameters `assetPacks` The asset packs the local availability of which to ensure. `completionHandler` A block that’s called when the asset packs are all available locally or that receives an error if one occurs. ## Discussion This method checks whether the asset packs are currently downloaded. If any aren’t, then the system schedules them to be downloaded and calls the completion handler with `nil` for the completion handler’s `error` parameter when all of the downloads finish. The framework guarantees that the requested asset packs are available locally after this method calls the completion handler with `nil` for the `error` parameter. If this method calls the completion handler with a non-`nil` value for `error`, then the asset packs *aren’t* all guaranteed to be available locally. You can optionally monitor download progress by attaching a delegate object to [`delegate`](/documentation/BackgroundAssets/BAAssetPackManager/delegate). > Note: This method doesn’t check for updates. It’s equivalent to calling ``doc://com.apple.backgroundassets/documentation/BackgroundAssets/BAAssetPackManager/ensureLocalAvailabilityOfAssetPacks:requireLatestVersions:completionHandler:`` and passing `NO` to the `shouldUpdate` parameter. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)