iOS CapabilitiesLesson 62Free preview

Background Work

This lesson is part of Swift · All levels

Summary

This lesson discusses how to manage Background Tasks on iOS using the BackgroundTasks (BGTaskScheduler) framework. The iOS operating system is very strictly limiting the process in the background to save battery. Developers will learn the types of official Background Modes such as audio playback, location tracking, and background app refresh.

Key points

IOS restricts background execution strictly to maintain battery efficiency of the device
Background Mode must be activated through the 'Signing & Capabilities' tab in Xcode
BGAppRefreshTask is used for short-term updates (such as synchronizing feeds)
BGProcessingTask is used for long-term heavy processing tasks (such as training local ML models while charging)

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