如何创建在我的 ThreadPoolExecutor 上工作的自定义 Kotlin 协程调度程序？

Question

In the process of migration to Kotlin, the question arose.
We already have some ThreadPools for different reasons.
How to execute coroutine on existed ThreadPool?

For exampe this code :

    suspend fun fetchMedia(): Flow<MediaItem> {
        return withContext(Dispatchers.IO) {...} 
    }

How to replace Dispatchers.IO to my own ThreadPoolExecutor ?

Answer 1

You can use Executor ThreadPools calling asCoroutineDispatcher() on it, like this:

suspend fun fetchMedia(): Flow<MediaItem> {
    return withContext(myThreadPool.asCoroutineDispatcher()) {...} 
}