Hello, I have a question. I am developing multiplatform app using compose multiplatform, and I am s...

# compose-ios

[Marek Niedbach]

Hello,

I have a question. I am developing multiplatform app using compose multiplatform, and I am struggling with the AlertDialog and Popups. I needed to set platformLayers = false as without it there is no background shadowing. But the Issue I have is that neither AlertDialog nor PopupMenu is accessible via accessibility API on iOS. They are accessible without setting platformLayers to false.

Is there any option to have both platformLayers = false and accessibility API for my dialogs/popups on iOS?

[Marek Niedbach]

or eventualy I should not set platformLayers to false and the background shadowing will be fixed in one of the next releases of the compose multiplatform

[Marek Niedbach]

ah, now I see that I haven’t latest update
https://www.jetbrains.com/help/kotlin-multiplatform-dev/whats-new-compose-1610.html#accessibility-support-improvements

so maybe it will be fixed after update to 1.6.10 🤞

[Ivan Matkov]

Disabling platformLayers is a temporary parameter in case of issues, it will be removed in a few versions (not sure when exactly yet). Please make sure that this issue is tracked in our GitHub.

Regarding shadows - it's tricky one. shadows size are not part of layout/measured size and with separate native view we cannot just draw outside. In 1.6.10 I fixed it by measuring real drawings in addition to layout, but... metal drawing + native layout has some sync issues that happen not in our code/Compose, so it can bring some visual jumps during animation. We have some ideas for future improvements here, but it will cost some performance probably 🙁

[Ivan Matkov]

lack of a11y without platformLayers is known limitation and was one of the reasons of new layers structure introduction

[Marek Niedbach]

Thanks for the update! I’ll check the new version and the potential glitches. I have some time before publishing iOS app and I believe that everything will be fixed until then 🤞

[Marek Niedbach]

Hello again 👋
after switching to the latest version 1.7.0 I see that there is no background shadowing issue, and the PopupMenu accessibility works well without setting platformLayers=false. But I still have an issue with AlertDialogs as none of the controls inside are accessible by setting Modifier.testTag . Is there anything I am missing to be able to have dialogs accessible on iOS side?

[Andrei Salavei]

https://youtrack.jetbrains.com/issue/CMP-6938/Accessibility-does-not-work-for-popups-with-platformLayers-enabled