How can I set a preview placeholder for a Coil image? It lacks an alternative to `tools:src`. The Ac...

# compose

[Marcin Wisniowski]

How can I set a preview placeholder for a Coil image? It lacks an alternative to tools:src. The Accompanist version had a previewPlaceholder. But after Compose support moved to the Coil library proper, it was removed. Are there any solutions?

[Sergey Y.]

According to the Coil documentation you need to set placeholder within request builder scope.

[Marcin Wisniowski]

That's something different, placeholder sets the image visible in the app during loading, not a @Preview replacement image.

[Sergey Y.]

No, it is also working for Preview.
Please, read the doc first https://coil-kt.github.io/coil/compose/#migrating-from-accompanist

[Sergey Y.]

previewPlaceholder is removed. ImageRequest.placeholder is now automatically used if inspection mode is enabled.

[Marcin Wisniowski]

I know the placeholder image is visible in Preview. But I don't see how that solves my problem. Like I said, I am looking for something like tools:src in ImageView or previewPlaceholder in the previous version of Coil. They don't affect the app, unlike what you are suggesting. I don't want my placeholder to be visible at runtime.

[Sergey Y.]

Oh, I see. AFAIK, it doesn't exist for Coil.

[Sergey Y.]

You can workaround it with
if (LocalInspectionMode.current) {
// set your placeholder image
}

[Marcin Wisniowski]

That could work, thanks.