Hello, I am getting this error in Compose Preview ...

# compose-android

[louiscad]

Hello,
I am getting this error in Compose Preview whenever I use iterator() on Path from `androidx.compose.ui.graphics`:
This breaks the preview entirely…

java.lang.UnsatisfiedLinkError: no androidx.graphics.path in java.library.path: /Users/Louis/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.

I'm very confused as to why that is happening since everything else with Path works in Compose Preview.
Am I the first one to see this? Is there a workaround?
I'm on Android Studio Koala 2024.1.1 Patch 1

Stacktrace extract in the thread 🧵

[louiscad]

Here's the stacktrace extract.

stacktrace

[romainguy]

It won't work in previews, it's using a library with native code

[romainguy]

layoutlib would have to provide an implementation

[louiscad]

Do you think it'd happen if I file an issue?

[romainguy]

I doubt it'll be a high priority, it's a rather niche API

[louiscad]

Compose Desktop is implementing it though?

[louiscad]

That should help, right?

[romainguy]

I don't see how?

[louiscad]

layoutlib and Compose Desktop both target non-Android JVM, so I'm thinking the Compose Desktop implementation could be reused for layoutlib

[romainguy]

The implementation is not the issue. Skia has support for this in newer versions

[romainguy]

(and skiko has a bug that prevents/prevent this from working when I attempted to do the Compose Desktop implementation; I filed an issue a while back and I don't think it's been resolved yet)

[louiscad]

Do you have the issue link?

[louiscad]

Damn, I was hoping it would work with Robolectric, but even there, it doesn't, exactly the same issue…

[romainguy]

It can't work with roboelectric either

[romainguy]

There's no magic. It's a JNI library built for Android

[romainguy]

It needs an implementation for the host

[louiscad]

Filed an issue for Robolectric: https://github.com/robolectric/robolectric/issues/9336

[yschimke]

What's the shadow policy for robolectric? I thought that androidx libraries would need to support themselves, rather than any shadows in Robolectric?

[louiscad]

Filed the Android Studio issue:
https://issuetracker.google.com/issues/354621198

[louiscad]

FYI, my use case is generating (animated) vector drawables programmatically. I actually want to use the toSvg() extension to integrate the path data in xml files.

That's to create all the icons (adaptive, monochrome, and legacy), and the splashscreen animation.