Как использовать ImageRequest.Builder.target в новой версии катушки в компоновке реактивного ранца? ⇐ Android

[Гость]

My Gradle

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// Coil
implementation "io.coil-kt:coil-compose:1.4.0"

Problem Description
Previously I used the coil together with Google's

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accompanist

, but when I migrate to the new version of the coil as the documentation suggests I'm having problems with the

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target

method:

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E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.pokedex, PID: 13502
java.lang.IllegalArgumentException: request.target must be null.
at coil.compose.ImagePainterKt.rememberImagePainter(ImagePainter.kt:94)
...

Coil Implementation
When browsing the internal code of

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ImagePainter

(coil class) you can see that the

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target

method really needs to be null for some reason:

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@Composable
fun rememberImagePainter(
request: ImageRequest,
imageLoader: ImageLoader,
onExecute: ExecuteCallback = ExecuteCallback.Default,
): ImagePainter {
requireSupportedData(request.data)
require(request.target == null) { "request.target must be null." }
...

My Code
Here's my component in jetpack compose (the image component is inside a column):

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Image(
modifier = Modifier
.size(120.dp)
.align(Alignment.CenterHorizontally),
painter = rememberImagePainter(
data = entry.imageUrl,
builder = {
crossfade(true)
target {
viewModel.calcDominantColor(it) { color ->
dominantColor = color
}
}
transformations(CircleCropTransformation())
},
),
contentDescription = entry.pokemonName
)

I need the target method to do internal operations on my

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viewModel

based on the

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drawable

it passes as a parameter. Can someone help me?


Источник: https://stackoverflow.com/questions/698 ... tpack-comp