Using AsyncImagePreviewHandler with rememberAsyncImagePainter for Preview not working

[MihaMarkic]

Using coil 3.1.0 and Compose (obviously).

Trying to use AsyncImagePreviewHandler with rememberAsyncImagePainter for Preview but it seems like painter gets stuck in Loading state (judging from preview).

Relevant code below.
Note that if I substitute FullPhoto with AsyncImage, I see the nice yellow image instead.
Is it me doing something stupid?

@OptIn(ExperimentalCoilApi::class)
@Preview
@Composable
private fun Preview() {
    val previewHandler = AsyncImagePreviewHandler {
        ColorImage(Color.Yellow.toArgb(), 1920, 1080)
    }
    CompositionLocalProvider(LocalAsyncImagePreviewHandler provides previewHandler) {
        FullPhoto(
            "", "Sample"
        )
    }
}

@Composable
fun FullPhoto(url: String, description: String, modifier: Modifier = Modifier) {
    val painter =
        rememberAsyncImagePainter(
            model = ImageRequest.Builder(LocalPlatformContext.current)
                .data(url)
                .build()
        )
    val state by painter.state.collectAsState()

    when (state) {
        is AsyncImagePainter.State.Empty, is AsyncImagePainter.State.Loading -> {
            CircularProgressIndicator(
                modifier = Modifier
                    .width(60.dp)
                    .height(60.dp)
            )
        }

        is AsyncImagePainter.State.Success -> {
            Image(
                painter = painter,
                contentScale = ContentScale.Crop,
                contentDescription = description,
                modifier = modifier
                    .fillMaxWidth()
            )
        }

        is AsyncImagePainter.State.Error -> {
            Text("?")
        }
    }
}

[colinrtwhite]

Hmm your code looks OK. Going to move this into an issue ticket to investigate: #2859

[colinrtwhite]

@MihaMarkic After investigating, AsyncImagePreviewHandler is working as expected, though it returns the Loading state instead of Success. Returning Loading allows us to return a null Image, however I think it's more important to return Success so I've modified the behaviour here.

[MihaMarkic]

Thanks! Do you plan to release it soon?