Not sure if this is an issue with snapshotting, with subcomposition, or if I’m doing something wrong...

# compose

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

Not sure if this is an issue with snapshotting, with subcomposition, or if I’m doing something wrong, but subcomposing inside of android views seems to be broken again (dev17, alpha01): https://issuetracker.google.com/issues/166482486

[Leland Richardson [G]]

was this fixed in dev16? or just never worked, just different error now?

[Leland Richardson [G]]

i assigned to chuck, i think he’s the right owner of this bug now but not 100% sure

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

It worked in dev16, and a few versions before as well. I started seeing it when upgrading from dev16 to 17, and still seeing it in the alpha.

[Leland Richardson [G]]

ok so i think you need to actually trigger the setContent call in an onPreCommit block, instead of in the property setter

[Leland Richardson [G]]

property sets happen during apply changes and we don’t have things in a reliable state for you to do a subcomposition until after the whole composition is applied

[Leland Richardson [G]]

doing this instead should work:

val compRef = compositionReference()
    for (i in 0 until childCount) {
      val viewRef = remember { Ref<IntermediateAndroidView>() }
      AndroidView(::IntermediateAndroidView) {
        viewRef.value = it
      }
      onPreCommit {
        viewRef.value.compRef = compRef
      }
    }

[Leland Richardson [G]]

although it is significantly uglier IMO

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

I'll give that a try, thanks. I'm not too worried about ugliness/boilerplate at this point, this code is all pretty hidden away.

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

This fixed it! I found another bug that seems unrelated, but it’s harder to trigger. Will try to file later.