# init(identifier:title:subtitle:) Creates an instance on behalf of the currently foregrounded app. ``` init(identifier: String, title: String, subtitle: String) ``` ## Parameters `identifier` The task identifier. `title` The localized title displayed to a person before the task begins running. `subtitle` The localized subtitle displayed to a person before the task begins running. ## Discussion Apps and their extensions need to use this method to initialize any tasks due to the underlying association to the currently foregrounded app. Note that [`earliestBeginDate`](/documentation/BackgroundTasks/BGTaskRequest/earliestBeginDate) is ignored by the scheduler in favor of `NSDate.now`. The identifier must leverage a base wildcard notation, where the prefix of the identifier must at least contain the bundle ID of the submitting application, followed by optional semantic context, and finally ending with `.*`. An example: `..*` transforms to `com.foo.MyApplication.continuedProcessingTask.*`. Thus, a submitted identifier is of the form `com.foo.MyApplication.continuedProcessingTask.HD830D`. > Warning: > Successful creation of this object does not guarantee successful submission to the scheduler. --- 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)