October 2018
Intermediate to advanced
370 pages
9h 15m
English
Content preview from Hands-On Object-Oriented Programming with Kotlin
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What are coroutines?
Coroutines are components of a computer program that can be considered lightweight threads. Coroutines allow us to suspend the invocation of a function without blocking a thread. Let's imagine a case in which you need to perform a request on the server and display a progress bar until your app receives the response. A request is a long-term operation that should be performed asynchronously because a user interface should stay responsive. This is a common approach to running a new thread that uses a callback so that you're notified when the app receives a response. However, using code with callbacks looks unnatural, complex, and can lead to bugs.
Coroutines can be considered as a library that wraps a particular part of ...
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