# ensureLocalAvailabilityOfAssetPack:requireLatestVersion:completionHandler: Ensures that the specified asset pack is available locally, performing a download if necessary. ``` - (void) ensureLocalAvailabilityOfAssetPack:(BAAssetPack *) assetPack requireLatestVersion:(BOOL) shouldUpdate completionHandler:(void (^)(NSError *error)) completionHandler; ``` ## Parameters `assetPack` The asset pack the local availability of which to ensure. `shouldUpdate` Whether to require that the latest version be available locally. When `YES` is passed to this parameter, the method will wait for the update (if there indeed is one available) to be downloaded before returning. When `NO` is passed, the method won’t check for updates and won’t attempt to download any. `completionHandler` A block that’s called when the asset pack is available locally or that receives an error if one occurs. ## Discussion This method checks whether the asset pack is currently downloaded. If it isn’t, then the system schedules it to be downloaded and calls the completion handler with `nil` for the completion handler’s `error` parameter when the download finishes. The framework guarantees that the requested asset pack is 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 pack *isn’t* guaranteed to be available locally. You can optionally monitor download progress by attaching a delegate object to [`delegate`](/documentation/BackgroundAssets/BAAssetPackManager/delegate). To download multiple asset packs at the same time, use [`ensureLocalAvailabilityOfAssetPack:requireLatestVersion:completionHandler:`](/documentation/BackgroundAssets/BAAssetPackManager/ensureLocalAvailabilityOfAssetPack:requireLatestVersion:completionHandler:). --- 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)