Concurrency Fundamentals in Swift

A practical guide to building fast, responsive, and thread-safe Swift applications

What you'll learn
- Understand what concurrency is and why it’s essential for modern iOS development
- Learn how Grand Central Dispatch (GCD) and completion handlers were used before async/await
- Master Swift’s new concurrency model — async/await, Task, and TaskGroup
- Identify and fix performance issues caused by blocking the main thread
- Use the MainActor correctly to keep your UI responsive and thread-safe
- Convert existing callback-based code to async/await using continuations
- Explore structured concurrency and cancellation with TaskGroup and .task modifiers
- Understand the role of Sendable and how Swift enforces data safety across threads
- Work with AsyncSequence to handle asynchronous data streams
- Learn how Actors prevent data races and simplify concurrent code design
- Build real-world examples that combine networking, async tasks, and actor isolation

Requirements
- Basic understanding of Swift programming (variables, functions, structs, and classes)
- Familiarity with SwiftUI or UIKit is helpful but not required
- Xcode 15 or later installed on your Mac
- A desire to write faster, cleaner, and safer asynchronous code
- No prior experience with concurrency is needed — we’ll start from the fundamentals and build up to advanced topics

Description
Build faster, smoother, and more responsive iOS apps by mastering Swift’s modern concurrency model.

If you’ve ever struggled withfreezing UIs,nested completion handlers, orcallback hell, this course will completely change the way you think about asynchronous programming in Swift. Apple’s new concurrency system—powered by async/await, Task, MainActor, and Actors—makes writing concurrent code safer, cleaner, and easier than ever before. But to truly harness its power, you need to understand how it works under the hood.

InConcurrency Fundamentals in Swift, you’ll learn:- What concurrency really is and why it matters- How Grand Central Dispatch (GCD) and completion handlers paved the way for async/await- How to rewrite old callback-based code using modern async/await syntax- The role of the MainActor and how to avoid blocking the main thread- How to use Task, TaskGroup, and Task.detached for structured concurrency- How Swift isolates data safely with Sendable and Actors- How to create and consume asynchronous data streams with AsyncSequence

You’ll seereal-world examples,hands-on demos, anddownloadable projectsthat walk you through each concept step by step.

By the end of this course, you’ll have the confidence to build concurrency-safe apps that feel lightning-fast and never freeze — a must-have skill for every serious iOS developer.

If you’re ready to write code that’s bothmodern and efficient, enroll now and masterConcurrency Fundamentals in Swift.

Who this course is for:
- iOS developers who want to master Swift’s modern concurrency model
- Developers tired of callback hell and confusing completion handlers
- SwiftUI and UIKit developers who want to build smooth, responsive apps that never freeze
- Intermediate Swift programmers looking to level up their understanding of async/await, actors, and structured concurrency
- Anyone who wants to understand how Swift manages threads, tasks, and data safety under the hood
- Instructors, team leads, or mentors who want to teach concurrency concepts clearly and confidently
More Info