Hello, I am trying to make an enum with references...

# compose

[galex]

Hello, I am trying to make an enum with references to Colors from my theme!

enum class Hierarchy(
    backgroundColor: Color,
    contentColor: Color,
    pressedBackgroundColor: Color,
    pressedContentColor: Color,
    disabledBackgroundColor: Color,
    disabledContentColor: Color,
    border: BorderStroke? = null,
) {

    Primary(
        backgroundColor = MyTheme.colors.accentDefault,
        contentColor = MyTheme.colors.contentInverse,
        disabledBackgroundColor = MyTheme.colors.accentDisabled,
        disabledContentColor = MyTheme.colors.contentInverse)
}

But as the enum is not a Composable I am hit with an error @Composable invocations can only happen from the context of a @Composable function . Is there a workaround this error?

[Luis]

Where is the composable you are calling? Is it colors?

[Luis]

You could check how Compose MaterialTheme Color class is implemented, I think you might be better served with a class and some global variables

[galex]

Yes I think so too, thanks

[Chris Johnson]

You could also create a variable in your themes to hold a reference to your materialColors as a lambda. I'm testing it out currently and like the ease of the use. I'm still testing performance to see but so far it's not bad.
For example:
val primary = @Composable { MaterialTheme.colors.primary }
And then you can use it like color = primary()

[galex]

Interesting, I’ll have a look thanks

[Antimonit]

I think you can also use @Composable annotated getters like

val primary
    @Composable
    get() = MaterialTheme.colors.primary

Don't have an access to ide right now, didn't test.