Does it handle background network requests?

Yes, it includes detailed patterns for configuring and using background URLSessions for persistent downloads and uploads that continue even after the app is terminated.

Is there guidance on avoiding app termination during background work?

Yes, the reference includes critical patterns for properly implementing expiration handlers and calling setTaskCompleted to ensure the system does not terminate your app for exceeding runtime limits.

How do I register background tasks using this skill?

The skill provides the specific code snippets for registering handlers in your AppDelegate or SceneDelegate before the application finishes launching, as required by Apple's guidelines.

What iOS versions are covered in this reference?

It covers background processing from the introduction of BGTaskScheduler in iOS 13 up to the latest features in iOS 26, including BGContinuedProcessingTask.

iOS Background Tasks Reference

Name: iOS Background Tasks Reference
Author: CharlesWiltgen

byCharlesWiltgen

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233

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Mobile Development

Provides a comprehensive API reference and WWDC-aligned code examples for implementing background execution on iOS and xOS platforms.

This skill serves as a specialized knowledge base for iOS developers implementing background tasks using the latest system APIs. It covers everything from standard app refreshes and maintenance tasks to advanced user-initiated background processing introduced in iOS 26. By providing battle-tested implementation patterns for BGTaskScheduler, background URLSessions, and legacy background task completion, it ensures developers can maintain app performance and system compliance while executing critical off-screen operations.

Key Features

01Complete API reference for BGTaskScheduler and its subclasses

02233 GitHub stars

03Implementation guides for background URLSession and download tasks

04Detailed Info.plist configuration requirements for background modes

05Best practices for expiration handling and progress checkpointing

06Swift code patterns for iOS 26+ BGContinuedProcessingTask

Use Cases

01Handling long-running user-initiated exports that must continue after the app is backgrounded

02Implementing persistent database maintenance routines that run while the device is charging

03Setting up periodic content refreshes based on user usage patterns using BGAppRefreshTask

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add charleswiltgen/axiom axiom-background-processing-ref

For use in Claude.ai and ChatGPT

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