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kotlinlang

Screenshot from 2022-06-02 19-28-40.png

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Hello, does anyone know why I get this error when I try building my project?
The imports work in the editor and I can run the code when using compose for desktop, but android fails to build:

I was using `1.2.0-alpha01-dev683`, I'll try updating to `686` right now

Same errors, here's my versions file:
```object Versions {
    //not used yet
//    const val serialization = "1.3.3"

    const val coroutines = "1.6.2"
    const val ktor = "2.0.2"
    const val okio = "3.1.0"

    const val kotlin = "1.6.21"
    const val compose = "1.2.0-alpha01-dev683"

    const val app = "0.0.1"
}```


`org.jetbrains.skia` package is available only in `desktopMain` sourceSet

Hmm, how should I convert an image from `ByteArray`(coming from a png like for example) to an `ImageBitmap`?

I'm trying to create a multiplatform image loading library and I don't know how to support all platforms and cache the images

&gt; Hmm, how should I convert an image from `ByteArray`(coming from a png like for example) to an `ImageBitmap`?
Create an expect/actual function.

BitmapDecoder.kt in commonMain:
```expect fun ImageBitmap(bytes: ByteArray): ImageBitmap```
BitmapDecoderDesktop.kt in desktopMain:
```actual fun ImageBitmap(bytes: ByteArray): ImageBitmap {
    // your code from the screenshot
}```
BitmapDecoderAndroid.kt in androidMain:
```actual fun ImageBitmap(bytes: ByteArray): ImageBitmap {
    return BitmapFactory.decodeByteArray(bytes, 0, bytes.length).asImageBitmap()
}```

Is there something similar available for `ios`/`js`?

The code for them should be the same as for desktop. They are built from the same sourceSet, which depends on Skiko library (Kotlin Skia bindings). Android depends on the native Android API, so the difference.

In the future we can probably publish skikoMain sourceSet, so it is only needed to define your function twice, not 4 times.

Funilly enough, i was also starting a lib for that just now.
There is already <https://github.com/alialbaali/Kamel> but it doesnt seem to be mantained anymore and doesnt support JS

By the way  <@U015TKX93PD>, the IDE thinks `org.jetbrains.skia` is available on the common source set, and lets you use it. But as <@U014PMSC9M5> mentioned, it only compiles for desktop.

<@U031YRDMCH5> I was using that and it was no longer maintained, if you want to check my library out, it already works and has a sample for usage

<https://github.com/dragossusi/image-loader>

Here is the sample:
<https://github.com/dragossusi/image-loader/blob/master/sample/src/commonMain/kotlin/ro/dragossusi/ImageSample.kt>

Nice! I think that link is private tho, i cant access it

It's still `wip` tho, it supports only `Url` for now