Swift Actor Demo From Network to UI This section guides you through building a small iOS app that demonstrates modern Swift concurrency using actors. We’ll tackle common problems like data races and redundant network requests, building a safe and efficient image loading system. The “Why”: Solving Data Races with…

…multiple tasks simultaneously. Serialized Access: Programmers line up outside the workshop door. When one finishes, the next one in line gets to enter. Swift manages this queue for you automatically, like handing out tickets at a deli counter. You get all the safety without the manual locking code. Actor Isolation…

Introduction to network calls with Swift async/await.

…responsive and efficient even under heavy workloads. Finally, you’ve explored the importance of safely updating the UI with background task results. By employing best practices and leveraging the latest features of Swift concurrency, you’re equipped with the tools and knowledge to build robust and responsive apps that meet…

…background tasks using async/await and Task. Prioritize and manage concurrent background tasks effectively. Safely update the UI with background task results. It’s time to dive in and unleash the full potential of Swift concurrency…

In this lesson you’ll learn what Swift actors are, why they provide exclusive, serialized access, and how reentrancy shapes actor method design. You’ll…

Conclusion Congratulations! You’ve successfully built an app using Swift actors, moving from the core theory to a practical, modern implementation. You now have a strong mental model for how actors solve data races. You can think of them as “gatekeepers” for their state, ensuring that only one task…

…this function, you update the news variable, which drives the UI changes. As you used to do in the old days of GCD, you must ensure these changes are performed in the main thread queue. In the Swift concurrency world, you can use the @MainActor flag on the function…

…this point, the execution of the function resumes from where it left off after the await statement. If the awaited operation throws an error, Swift automatically propagates that error up the call stack, allowing you to handle it using familiar error-handling mechanisms such as try-catch. Invoking Asynchronous Functions…

…from the provided URL. This method returns an AsyncSequence and an HTTP response. AsyncSequence is also part of the new asynchronous primitives introduced with Swift 5.5. Without going into all its details, an AsyncSequence is a type that represents a sequence of values produced asynchronously over time. It allows…

Fundamentals of asynchronous programming in Swift.