Andrew Bancroft • 2/15/2016

Fundamentals of Callbacks for Swift Developers

This article provides a foundational understanding of callbacks for Swift developers, focusing on Swift 3.0. It defines callbacks as a common programming pattern in iOS development, explains their role in asynchronous programming to boost app performance, and illustrates API design using a hypothetical ImageSketcher example. The article covers how callbacks allow decoupling of task initiation and completion, enabling developers to hook back in with custom logic when an async task finishes. It is a technical tutorial relevant to software development and IT.

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#api design #asynchronous programming #callbacks