I am not sure how to adapt the code ```val userPreference = UserPreference() Window( size = user...

# compose-desktop

[Yan Pujante]

I am not sure how to adapt the code

val userPreference = UserPreference()

Window(
  size = userPreference.windowSize,
  resizable = true,
  title = "Test",
  events = WindowEvents(onResize = userPreference::onWindowResize)
) {
  App(userPreference)
}

to the new Window api. It looks like I can use val state = rememberWindowState(size = userPreference.windowSize), but I am not sure how to call onWindowResize when state.size changes...

[Igor Demin]

It is a bit more code in a new API 🙂

val state = rememberWindowState()

Window(state) {

}

LaunchedEffect(state) {
    snapshotFlow { state.size }
        .onEach(::onWindowResize)
        .launchIn(this)

    snapshotFlow { state.position }
        .filterNot { it.isInitial }
        .onEach(::onWindowRelocate)
        .launchIn(this)
}

(similar to listening the other hoisted states, like LazyListState)

[Yan Pujante]

thank you. I will try this. I don't mind that it is more code. It is just that I had no clue how to do it and clearly it is not trivial. I carefully read the tutorial for this new api (https://github.com/JetBrains/compose-jb/tree/master/tutorials/Window_API_new) but I couldn't find a description about it.

[Igor Demin]

description about it

We forgot about it and added it recently. Thanks for bringing this 🙂

[Yan Pujante]

No problem. I guess that is what using cutting edge tech means... Glad to be able to help as well by providing feedback.

[Yan Pujante]

I do not know if I am doing something wrong, but when I copy/paste the code as-is, the application no longer quits when closing the window. Moving the LaunchedEffect section inside the Window callback allow the application to terminate properly...

[Igor Demin]

Wow, thanks for noticing this, I changed the tutorials.

Yes, the right approach is to write this in Window scope.

Because when we close the window - we will cancel all launched inside Window coroutines.

If we launch coroutines inside application - we can't cancel them.