你可以这样做👇

@Composable
fun TopAppBarScreen() {

    Box(modifier = Modifier.fillMaxSize()) {
        TopAppBar(
            elevation = 5.dp,
            backgroundColor = Color(0XFFF05E32)
        ) {
            IconButton(onClick = {}) {
                Icon(Icons.Default.ArrowBack, contentDescription = "", tint = Color.White)
            }
            Spacer(modifier = Modifier.width(10.dp))
            Text(text = "Menu Prefil", color = Color.White)
        }
        FloatingActionButton(
            onClick = {},
            backgroundColor = Color(0XFF4c8acc),
            modifier = Modifier
                .align(Alignment.TopEnd)
                .padding(end = 20.dp, top = 25.dp)
        ) {
            Icon(Icons.Default.ShoppingCart, contentDescription = "", tint = Color.White)
        }
    }

}