Delayed operation till resumed stage in Android activity and fragment

coroutinesExt.kt

// usage:
// delayInResumed(10L) {
//     binding.appBottomBar.updateTabs()
// }

fun Activity.delayInResumed(
    durationMs: Long = 0,
    dispatcher: CoroutineDispatcher = Dispatchers.Main,
    block: () -> Unit
) {
    delayInResumed(lifecycle, lifecycleScope, durationMs, dispatcher, block)
}

fun Fragment.delayInResumed(
    durationMs: Long = 0,
    dispatcher: CoroutineDispatcher = Dispatchers.Main,
    block: () -> Unit
) {
    delayInResumed(lifecycle, lifecycleScope, durationMs, dispatcher, block)
}

fun delayInResumed(
    lifecycle: Lifecycle,
    lifecycleScope: LifecycleCoroutineScope,
    durationMs: Long,
    dispatcher: CoroutineDispatcher = Dispatchers.Main,
    block: () -> Unit
) {
    val job = lifecycleScope.launch(dispatcher) {
        delay(durationMs)
        if (lifecycle.currentState.isAtLeast(Lifecycle.State.RESUMED)) {
            block()
        }
    }

    if (lifecycle.currentState.isAtLeast(Lifecycle.State.RESUMED)) {
        job.start()
    } else {
        lifecycle.addObserver(object : LifecycleEventObserver {
            override fun onStateChanged(source: LifecycleOwner, event: Lifecycle.Event) {
                if (event == Lifecycle.Event.ON_RESUME) {
                    lifecycle.removeObserver(this)
                    job.start()
                } else if (event == Lifecycle.Event.ON_DESTROY && job.isActive) {
                    job.cancel()
                }
            }
        })
    }
}