Hello guyz, Has anyone encountered this? Is it so...

# compose-ios

[Anant Kumar Gupta]

Hello guyz,

Has anyone encountered this? Is it something to worry about, or is there a better way to safely handle CGImage in Kotlin/Native?

Warning - Cannot access class 'cnames. structs. CGImage' in the expression type. While it may work, this case indicates a configuration mistake and can lead to avoidable compilation errors, so it may be forbidden soon. Check your module classpath for missing or conflicting dependencies.

fun generateVideoThumbnailIOS(
    uri: String
): ImageBitmap? = memScoped {
    val nsUrl = NSURL.Companion.fileURLWithPath(uri.removePrefix("file://"))
    val asset = AVURLAsset.URLAssetWithURL(nsUrl, null)
    val generator = AVAssetImageGenerator(asset)
    generator.appliesPreferredTrackTransform = true
    val requestedTime = CMTimeMake(1, 1).useContents { readValue() }
    val actualTime: CMTime = alloc<CMTime>()
    val errorPtr = alloc<ObjCObjectVar<NSError?>>()
    val cgImage = generator.copyCGImageAtTime(
        requestedTime = requestedTime,
        actualTime = actualTime.ptr,
        error = errorPtr.ptr
    ) ?: run {
        println("Error: ${errorPtr.value?.localizedDescription}")
        return@memScoped null
    }

    val uiImage = UIImage.imageWithCGImage(cgImage)
    val nsData = uiImage.pngRepresentation() ?: return@memScoped null
    val length = nsData.length.toInt()
    val bytePtr = nsData.bytes?.reinterpret<ByteVar>() ?: return@memScoped null
    val byteArray = bytePtr.readBytes(length)
    val finalThumbnail = Image.makeFromEncoded(byteArray).toComposeImageBitmap()
    return@memScoped finalThumbnail
}