Kotlin Coroutine | Everything you need to know

In this 2 hour tutorial, you will learn everything you need to know about Coroutines in Kotlin using demos in IntelliJ IDEA and precise presentation.

There are 5 chapters in this course.
In chapter 1,

• get a solid understanding of what is #coroutine in #kotlin
• Explore the ‘suspend’ keyword, comparison with threads, delay function, Thread.sleep function and a lot more
• Basics of coroutine builders: launch, async, and runBlocking

In chapter 2,

• dive deeper into Coroutine Builders and explore them in detail
• Use GlobalScope companion object to launch coroutines
• Why GlobalScope is discouraged to use?
• Test suspending functions by writing a JUnit test case

In chapter 3,

• learn to cancel coroutines and handle exceptions
• What is cooperative coroutine? How to write cooperative code?
• Explore job.cancel(), and job.cancelAndJoin() functions
• Use of yield() and delay() suspending functions (suspend modifier)
• Explore what is CoroutineScope.isActive boolean flag
• Handle CancellationException and TimeoutCancellationException
• Use withContext(NonCancellable), withTimeout, and withTimeoutOrNull coroutine builders

In chapter 4,

• compose suspending functions in different ways within a coroutine
• Explore how code execution in coroutine is sequential by default
• How to execute suspending functions in a coroutine concurrently?
• Lazily execute async coroutine by using CoroutineStart.LAZY

In chapter 5,

• learn a few advanced coroutine concepts
• Understand what is CoroutineScope?
• What is CoroutineContext?
• What is a Dispatcher?
• Role of a dispatcher: to assign a thread to a coroutine
• Types of Dispatcher: Confined, Unconfined, Default, Main, and IO
• Components of CoroutineContext: Job, Dispatcher, and Coroutine Name