I'm trying to download an image from a URL using Okio in Kotlin Multiplatform, but I couldn't find a...

# multiplatform

[Yassine Abou]

I'm trying to download an image from a URL using Okio in Kotlin Multiplatform, but I couldn't find any examples or documentation on how to do this. I have a function that retrieves a wallpaper download URL, and I want to use Okio to download the image. Here's what I have so far:

fun downloadWallpaper(
    wallpaperId: String
) {
    getWallpaperDownloadUrl(wallpaperId) { wallpaperUrl ->
        // Logic to download image
        addMessage(InfoUiMessage(message = Res.string.wallpaper_downloaded))
    }
}

any help would be appreciated

[jw]

Okio is an I/O library not an HTTP client

[jw]

An HTTP client might use Okio for sending data and receiving data, but Okio on its own cannot download things

[Yassine Abou]

is there any library I can use, or any implementation?

[Alexander Zhirkevich]

#ktor

[Yassine Abou]

I found this code, but Kotlin Multiplatform common main doesn't support Java file.

ktor.webp

[Sebastian Schuberth]

You can't use java.net.URL in KMP code as that class is JVM-only, not multiplatform. Usually multiplatform code simply uses a string as the URL, so you need to convert java.net.URL to a string first.

[Yassine Abou]

thanks, I'll try your approach

[Michael Paus]

Your question is about image loading. Have you tried any of the many specialised image loading libraries?
https://github.com/coil-kt/coil
https://github.com/Kamel-Media/Kamel
https://github.com/qdsfdhvh/compose-imageloader

[chrisjenx]

Generally people use Coil or above mentioned libraries for image loading and showing, or the #ktor client for a KMM friendly Http requests (I think Coil uses Ktor under the hood by default)