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Learn how to add concurrency to your apps! Keep your app’s UI responsive to give your users a great user experience, and learn how to avoid common concurrency problems, like race condition, priority inversion and deadlock.

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Get an in depth look at what’s covered in our video tutorial course iOS Concurrency with GCD & Operations.

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Learn the basics of concurrency and Grand Central Dispatch — serial and concurrent queues, synchronous and asynchronous dispatch.

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Learn how to wrap a synchronous function to make it asynchronous, and how to handle simple use cases — a chain of synchronous tasks and a collection of similar independent tasks.

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Learn how use GCD dispatch groups so that you can respond to the completion of a collection of GCD tasks.

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In this video tutorial, you'll learn about what an Operation is, and how you can create and run Operations.

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In this video tutorial you'll learn how to use OperationQueue to handle the scheduling and execution of Operations.

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In this video tutorial, you'll learn how to use an Operation to wrap an asynchronous function such as a network call.

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Learn how to use the results from one Operation in another and specify that the second Operation shouldn't be executed until the first has completed.

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In this iOS concurrency video tutorial, you'll learn how to perform a cancellation of an Operation.

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Pull together all the concurrency knowledge you've learned so far in this series to improve the scrolling performance of a table view in a realistic app.

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Learn how to create thread-safe objects to prevent inconsistent state, and how to avoid other concurrency problems.

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Review what you've learned in our video course iOS Concurrency with GCD & Operations, and get some hints and tips for handling concurrency in iOS.

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