Canceling coroutines

In this section, we will start by looking at coroutine cancelations Developers can cancel coroutines in their projects manually or programmatically. You must make sure your application can handle these cancelations.

If your application is doing a long-running operation that is taking longer than expected and you think it could cause a crash, you might want to stop that task. You can also end tasks that are no longer necessary to free up memory and resources, such as when the user moves out of the activity that launched the task or closes the application. Users can also manually discontinue certain operations if you have that feature in your application. Coroutines make it easier for developers to cancel these tasks.

If you are using viewModelScope from ViewModel or lifecycleScope from the Jetpack Lifecycle Kotlin extension libraries, you can easily create coroutines without manually handling the cancelation. When ViewModel is cleared, viewModelScope is automatically...