Additional resources for Kotlin coroutines and flow

Use these additional resources to learn even more about Kotlin coroutines and flow. These resources are grouped by topic.

Basics

• First things first: This article teaches basic coroutine concepts, including CoroutineScope, Job, and CoroutineContext.
• The ABC of coroutines: Learn about the most common classes and functions used when working with coroutines.
• Coroutines in Android (series - 1st article linked): This post is the first in a series that teaches you about Kotlin coroutines.
• Understand Kotlin Coroutines on Android: This Google I/O 2019 talk gives an overview of using Kotlin coroutines on Android.
• Coroutines codelab: This codelab shows you how to use Kotlin coroutines to manage background threads and simplify your async code.
• Coroutines: how to manage async tasks in Kotlin: Learn about the state of coroutines in Android as of 2020.

Cancellation

• Cancellation in coroutines: This article talks about about the ins and outs of coroutine cancellation.
• Coroutines: Gotta catch 'em all: Learn best practices for handling cancellation and exceptions in Kotlin coroutines.

Exceptions

• Exceptions in coroutines: Learn how exceptions are propagated in coroutines and how to handle them.
• Coroutines: Gotta catch 'em all: Learn best practices for handling cancellation and exceptions in Kotlin coroutines.

Scopes

• Easy coroutines in Android: viewModelScope: This article describes viewModelScope, an extension property that adds coroutines support to the ViewModel class.
• Patterns for work that shouldn't be cancelled: This article describes how to trigger coroutines that shouldn't be cancelled using an applicationScope or externalScope.

Flow

• Going with the Flow: Learn about the flow API and its benefits.
• Advanced Coroutines with Kotlin Flow and LiveData: Learn how to use Kotlin coroutines with LiveData and flow in an Android app.
• Lessons learnt using Coroutines Flow in the Android Dev Summit 2019 app: This article highlights best practices and other lessons learned when adding flow support to the Android Dev Summit 2019 app.

Testing

• Testing coroutines on Android: Learn about the best practices to test your coroutines.
• Testing codelab - Coroutines section: Learn about testing ViewModels that use coroutines by replacing Dispatchers.Main with a TestCoroutineDispatcher.
• Testing two consecutive LiveData emissions in Coroutines: Learn how to use TestCoroutineDispatcher to pause and resume the execution of coroutines.

Libraries, Jetpack, and Coroutines

• LiveData with Coroutines and Flow: This talk from the 2019 Android Dev Summit covers how to use the liveData coroutine builder along with testing patterns and antipatterns to make clean, efficient, and solid reactive UIs.
• Building a Kotlin extensions library: Learn how to build a Kotlin extensions library that adds coroutines and flow support to existing classes.
• Simplifying APIs with coroutines and Flow: Learn how to simplify your libraries with coroutine adapters, create your own, and see how they work under the hood.

Coroutines in the view layer

• Suspending over Views: This post talks about how coroutines can make UI programming easier.

Under the hood

• Suspend functions - Kotlin Vocabulary: Learn why coroutines are important and how they work under the hood.
• The suspend modifier under the hood: Learn how the compiler transforms your code to suspend and resume the execution of your coroutines.