TunerScreen.kt

@Composable
fun TunerScreen(tunerState: TunerState) {
    Column(
        modifier = Modifier.fillMaxSize().background(tunerState.bgColor),
        verticalArrangement = Arrangement.Center,
        horizontalAlignment = Alignment.CenterHorizontally
    ) {
        Row(verticalAlignment = Alignment.CenterVertically) {
            LeftArrow(isVisible = tunerState is TunerState.Down)
            TextNote(note = tunerState.note.title)
            RightArrow(isVisible = tunerState is TunerState.Up)
        }
    }
}
@Preview(widthDp = 200, heightDp = 200)
@Composable
fun TunedView() = TunerScreen(TunerState.Tuned(NotesEnum.A))

@Preview(widthDp = 200, heightDp = 200)
@Composable
fun OutOfTuneViewDown() = TunerScreen(TunerState.Down(NotesEnum.A))

@Preview(widthDp = 200, heightDp = 200)
@Composable
fun OutOfTuneViewUp() = TunerScreen(TunerState.Up(NotesEnum.A))