I have trouble loading resources in my compose multiplatform project. In an `icons` package I have a...

# compose-desktop

[Arjan van Wieringen]

I have trouble loading resources in my compose multiplatform project. In an icons package I have added the resources under commonMain/resources . I added the experimental compose.components.resources dependency and I created a barebones composable in that package:

@OptIn(ExperimentalResourceApi::class)
@Composable
fun Icon() {
    Image(
        painter = painterResource("icons/create-new-folder.svg"), // i also tried with leading slashe
        contentDescription = null
    )
}

However, if I consume this package in my desktop application package (compose desktop for JVM) it can not find the resource. What am I missing here?

I used the following repo as a starting point: https://github.com/Kotlin/kotlin-wasm-examples/tree/main/compose-imageviewer

[Chrimaeon]

painterResource is an android concept that not part of the compose.components.resources I think. have a look at the cutom implementation of painterResourceCached in here https://github.com/Kotlin/kotlin-wasm-examples/blob/d28f7917848c24e26d40f8ec6b309d[…]ed/src/commonMain/kotlin/example/imageviewer/platform.common.kt

[Chrimaeon]

also what do you mean with

icons package

?
resources are bundled via a resource folder like this https://github.com/Kotlin/kotlin-wasm-examples/tree/d28f7917848c24e26d40f8ec6b309dcd9ba0e77f/compose-imageviewer/shared/src/commonMain/resources

[Chrimaeon]

this concept is comming from here https://docs.oracle.com/javase/8/docs/technotes/guides/lang/resources.html

[Arjan van Wieringen]

PainterResource is part of the compose Multiplatform api and not Android specific. The icons package is just a Gradle module I made with SVGs in the commonMain/resources folder

[Chrimaeon]

did you then try to move the resource folder to jvmMain ?

[Arjan van Wieringen]

No not yet, but that is also not what is being done in the compose Multiplatform examples

[Chrimaeon]

yes, but they are also not using the painterResource but load the resources from the resource composable function.

[Arjan van Wieringen]

Ah you’re right! I’ll try that

[Arjan van Wieringen]

Alas, this also doesn't work. I think I have to go to a minimal example and try again. painterResource is part of the org.jetbrains.compose.resources package btw

[Chrimaeon]

What error do you get?

[Arjan van Wieringen]

Error(exception=org.jetbrains.compose.resources.MissingResourceException: Missing resource with path: icons/create-new-folder.svg) so, that is clear

[Arjan van Wieringen]

I'll go to a minimal example with a minimal new project and try again....

[Chrimaeon]

👍

[Arjan van Wieringen]

Okay, SVG's aren't supported yet it seems. I am unable to load basic svg icons. Either it's a PNG or equivalent or an XML, which I don't know.

[Arjan van Wieringen]

https://github.com/JetBrains/compose-multiplatform-template/blob/main/shared/src/commonMain/kotlin/App.kt This one works with an XML, but not with an SVG. I think I'll have to wait until icons are truly more stable for Multiplatform.

[Chrimaeon]

there is also this IDEA plugin to generate Compose Image Vectors ,like the Material Icons library, out of your SVG’s https://plugins.jetbrains.com/plugin/18619-svg-to-compose

[Arjan van Wieringen]

Minimal example is working. However in my own project I have a JVM app project (not Multiplatform) that includes Multiplatform subprojects with resources in them. I’ll try to figure out if that’s the problem

[Chrimaeon]

Did you “inspect” the .jar file if the resources are all bundled correctly?

[Arjan van Wieringen]

I found the issue.

• multiplatform library containing resources in commonMain/resources directory
• kotlin("multiplatform") project with JVM target having this library as implementation dependency -> works
• kotlin("jvm") project having this library as implementation dependency -> fails
Issue has been filed: https://github.com/JetBrains/compose-multiplatform/issues/3162

[Arjan van Wieringen]

I created a repo to reproduce the issue: https://github.com/avwie/resources-issues-compose