I'm trying to implement a modified WithConstraint....

# compose

[Octave Decaux]

I'm trying to implement a modified WithConstraint. Linter says NodeLayout call doesn't take any argument, code compiles just fine, but it is not executed. I guess there is an internal NodeLayout Composable function which refers to the NodeLayout class, but I cannot find it.
What is the proper way to use NodeLayout in my own code ?

[Andrey Kulikov]

hey! yes, currently we emit LayoutNode in a bit different way, not like a composable function. and this code is currently being refactored and will be changed in the nearest future to be more understandable. I am really curious what use case are you trying to solve with your own WithConstraints as were planning to make such things simpler soon

[Octave Decaux]

I'm trying to create a scroller with automatic anchor points for every children. I'm adding the position of every children to WithConstraintsScope. Is there a better way to do that ?

[Octave Decaux]

(thanks for replying btw)

[Zach Klippenstein (he/him) [MOD]]

Could you just provide an Ambient to register the positions with?

[Octave Decaux]

Thanks for the suggestion. My understanding was that Ambient is more of a downstream mechanism, but I guess I just learned something. I'm really glad this channel exists

[Andrey Kulikov]

basically there are no good ways of solving this yet. creating your own WithConstraints doesnt really help here as you want to have children sizes in the composable child block of withconstraints. but this composable blocks defines the children. so for the moment of the invoking the WithConstraints block there are no children yet, not saying that they are not yet measured. what you probably want is a to-be-added-in-the-future feature for `LazyColumnItems`(renamed AdapterList) where we will have a functionality to scroll to the second item and so on)

[Andrey Kulikov]

something similar is solved in TabRow , where we scroll to the tapped Tab, but this code is also not super reusable at the moment

[Zach Klippenstein (he/him) [MOD]]

I think I misunderstood what you are trying to do.

[Octave Decaux]

Ok, thanks for taking the time guys

[Octave Decaux]

I just had a look at TabRow. This does indeed feels like a hack, but it will do for now.

// Delay indicator composition until we know tab positions
if (tabPositions.isNotEmpty()) {
    indicatorContainer(tabPositions)
}

[Octave Decaux]

Hey, just to let you know that I eventually found a solution (by bolting together different things, mainly)
https://gist.github.com/odecaux/808c71b646c0a170cfeb2cb0686858e0