How to repeat a task within a duration of delay using coroutines in Android?

# coroutines

[Aslam Hossin]

How to repeat a task within a duration of delay using coroutines in Android?

[Ianmedeiros]

while(!canceled) {
delay(duration)
doStuff()
}


?

[Marko Mitic]

This keeps running until scope is cancelled

launch {
        while (isActive) {
            delay(INTERVAL)
            doStuff()
        }
    }

[Aslam Hossin]

@Marko Mitic is canceled or is not canceled? I am a little bit confused. I am not sure how to manage this method in the android UI thread.

[Marko Mitic]

it will keep running until scope is canceled, or while scope is not canceled (i hope that helps)

[Marko Mitic]

there are other ways of canceling the task if needed

[Marko Mitic]

about the UI thread, it's safe to run this on it, it will not block the UI (unless doStuff() takes a long time)

[Marko Mitic]

@Aslam Hossin does this help?

[Aslam Hossin]

I want to do stuff repeatedly in an interval then Is it okay?
I am working on it, Thanks for your input.

[Eric Martori]

withTimeoutOrNull(timeMillis){
        while(isActive){
            doThing()
        }
    }

or

withTimeoutOrNull(timeMillis){
        while(true){
            doThing()
            yield()
        }
    }

[Marko Mitic]

That looks like it's gonna do the thing repeatedly for given time, not do it at an interval

[Eric Martori]

isn't that what he is asking about? From his latest message:

I want to do stuff repeatedly in an interval

[Eric Martori]

The wording of the question is a bit confusing

[Marko Mitic]

Yeah, it's not that clear. @Aslam Hossin Do you need task executed repeatedly for some time or once per time intrerval, repeatedly?

[gildor]

No need to check for cancellation or isActive if you have suspend function such as delay(), any suspend already checks cancellation on call and return

[gildor]

But nothing wrong to check isActive too