StoreKit · IOS API REFERENCE
StoreDownloaderExtension
protocol · iOS 26.0+ · SDK 27.1
protocol StoreDownloaderExtension : ManagedDownloaderExtensionAn app extension that uses the system implementation to schedule Apple-hosted asset-pack downloads automatically. You can optionally implement the inherited `ManagedDownloaderExtension` requirements, but don’t implement any of the inherited `BADownloaderExtension` requirements for which this protocol provides a default implementation. For more information, see <doc://com.apple.documentation/documentation/backgroundassets>.
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