Quick sample to use PreviewParameterProvider

TestPreview.kt

@Composable
fun MyCard(dumbo: Dummy) {
    Box(
        Modifier
            .fillMaxWidth()
            .height(64.dp)
            .background(colorResource(id = R.color.colorPrimary))
    ) { 
        
        Text(text = dumbo.title)
    }
}

@Preview(showBackground = true)
@Composable
fun PreviewCard(
    @PreviewParameter(TestPreviewParameterProvider::class)
    dumbo: Dummy) {
    MyCard(dumbo)
}

val myDummy = Dummy("Title")

data class Dummy(val title: String)

class TestPreviewParameterProvider : PreviewParameterProvider<Dummy> {
    override val values: Sequence<Dummy> = sequenceOf(
        myDummy
    )
}

/**
 README 
 To use it, you just need to import the file inside an Android Project with Compose dependencies

/*