Compose Preview in Android Studio does not work

[WonderCsabo]

Description

If we use RiveUI() in our Composables, and check out the preview in Android Studio, the preview cannot render, and crashes.

java.lang.ClassNotFoundException: android.opengl.EGL14
  at java.lang.ClassLoader.loadClass  at java.lang.ClassLoader.loadClass  at app.rive.core.CommandQueue.<init>   ...
(CommandQueue.kt:434)

Provide a Repro

Just add any RiveUI() in your Composable:

val riveFileResult by rememberRiveFile(RiveFileSource.RawRes(R.raw.your_rive_animation))

if (riveFileResult is Result.Success) {
    val riveFile = (riveFileResult as Result.Success<RiveFile>).value

    RiveUI(
        file = riveFile
    )
}

Expected behavior

Preview should show the Rive animaton in its initial state. At least just show a blank view, and not crash the whole Composable preview.

[ErikUggeldahl]

Hi @WonderCsabo, thanks for the report and good find - we had not yet gotten to testing this in Compose Previews. As for whether it will be possible to render the first frame, that will depend on whether we can load the Rive C++ library at preview time - something that we'll have to research. But you are right to point out that this should not crash. Definitely something to fix before exiting technical preview.