Hello guys, I have an Animatable animation running in a coroutine, the problem is that when I put th...

# compose

[Rodri Represa]

Hello guys, I have an Animatable animation running in a coroutine, the problem is that when I put the app in the background, my animation stop, and when I return to the app, my animation has finished instead of continue in the interrupted value.
How can I return to the app and continue my animation where I left off?

[Adam Powell]

we generally consider this undesirable and prefer the behavior where time isn't stopped by leaving and returning. However, if you'd like to implement such a thing you can implement your own MonotonicFrameClock that wraps the current one, install it using withContext, and then call the suspending animation functions in that block. e.g.

val myPausingClock = MyPausingClock(coroutineContext[MonotonicFrameClock]!!, lifecycleOwner)
withContext(myPausingClock) {
  animateThings()
}

[Adam Powell]

and subtract out the time skipped while the lifecycle isn't STARTED or higher from the timestamps passed to MonotonicFrameClock.withFrameNanos callers, otherwise just passing it through to the wrapped clock

[Rodri Represa]

Thanks so much!