Hey there. I have some misunderstandings regarding...

# multiplatform

[markizdeviler]

Hey there. I have some misunderstandings regarding the Lifecycles of a compose-multiplatform. When I use the code below, onEvent is triggered more than enough. It happens when I minimize and reopen the app or reopen the screen where this composable is used.

Log:
Event: ON_CREATE
Event: ON_START
Event: ON_RESUME
Event: ON_RESUME
//Minimize the app and reopen the app
Event: ON_PAUSE
Event: ON_PAUSE
Event: ON_STOP
Event: ON_STOP
Event: ON_START
Event: ON_START // an extra call
Event: ON_RESUME
Event: ON_RESUME
Event: ON_RESUME // an extra call
.....

The log is getting bigger every time I repeat the process. If I repeat this process n times, it's making n more extra calls. How can I make it work correctly? Or is this an expected behaviour?

@Composable
fun ComposableLifecycle(
    lifecycleOwner: LifecycleOwner = LocalLifecycleOwner.current,
    onEvent: (Lifecycle.Event) -> Unit
) {
    DisposableEffect(lifecycleOwner) {
        val observer = LifecycleEventObserver { _, event ->
            Log.d { "Event: ${event.name}" }     // print the log
            onEvent(event)
        }
        lifecycleOwner.lifecycle.addObserver(observer)

        onDispose {
            lifecycleOwner.lifecycle.removeObserver(observer)
        }
    }
}

Here is the same behavior on Android & iOS.
Dependency: "org.jetbrains.androidx.lifecyclelifecycle viewmodel compose2.8.0"

[Pablichjenkov]

Sounds like a bug, you shouldn't have duplicates

[Pablichjenkov]

But it could be the case you are registering more than one observer. Can you print a unique ID in the observer to confirm is not the case