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Android AsyncTask.THREAD_POOL_EXECUTOR and Custom ThreadPool with Runnables

I have some tasks that I need to handle at the same time on Android, and I would like to use some kind of thread pool for this. I could not find in the documentation what actually happens "behind the scenes" when running AsyncTask using AsyncTask.THREAD_POOL_EXECUTOR.

My question is: what am I losing using AsyncTasks with AsyncTask.THREAD_POOL_EXECUTOR, as opposed to implementing custom ThreadPool with Runnables? (Let's talk about the cell).

I understand that the question is pretty general, but I'm pretty new to concurrent programming (besides AsyncTask itself). I'm not looking for a parallel programming tutorial! I just want to understand how a specific AsyncTask.THREAD_POOL_EXECUTOR differs from Android. I think the explanation will be useful to others in the future, as they weigh the pros and cons of choosing to use AsyncTask vs Thread / Runnable. Thanks in advance!

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Source: https://habr.com/ru/post/1546019/

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