`getLongestCompletedStreak` can take a while if th...

# coroutines

[Florian]

getLongestCompletedStreak can take a while if the List is large. Will this setup do the list calculation on a background thread?

private val taskStreaksMax =
        allTasksWithTaskStatisticsFlow.map { allTasksWithTaskStatistics ->
            allTasksWithTaskStatistics.map { taskWithTaskStatistics ->
                TaskStreak(
                    taskWithTaskStatistics.task.id,
                    taskWithTaskStatistics.taskStatistics.getLongestCompletedStreak()
                )
            }
        }.flowOn(defaultDispatcher)

[Florian]

Ok, I think I figured it out myself. I put a Thread.sleep into my sorting function and indeed, with the flowOn it doesn't freeze the screen, but without it it does.

[Orhan Tozan]

What is defaultDispatcher?

[Florian]

Dispatchers.Default

[Orhan Tozan]

Ok, I assume the, getLongestCompletedStreak() function is suspending, and is the reason why it can take long?

[Florian]

no, its no suspending

[Florian]

because it doesn't call any suspend functions

[Florian]

it's just searches through a list