android服务中的协程资源什么时候释放？

Question

I am using kotlin coroutines in my JobIntentService , So on onHandleWork i would launch my coroutine, once this tasks ends i need to clean up the resources by cancelling the Job . onDestroy called immediately after starting of the service, Since i am launching the coroutine on the onHandleWork it doesn't block the current thread.

is it mandatory to cancel the coroutine after finishing the task?

If so, When to release the coroutine resources in the android Service lifecycle

Can anyone help me with this?

Answer 1

is it mandatory to cancel the coroutine after finishing the task?

No, it is not mandatory. Usually coroutines are launched in a context of some CoroutineScope and CoroutineScope is tied to some lifecycle, usually Activity or Fragment . Coroutines are used to execute some task in a background thread in a sequential manner.

Method onHandleWork of JobIntentService class is called on a background thread , so you can do long blocking operations here. I don't see the reason why you should launch a coroutine in this method. Just execute your task without launching the coroutine.

Since i am launching the coroutine on the onHandleWork it doesn't block the current thread.

Method onHandleWork is called on a background thread so you don't need to launch a coroutine there.