OutlinedButton(
    onClick = { Toast.makeText(mContext, "This is a Circular Button with a Icon", Toast.LENGTH_LONG).show() },
    modifier = Modifier.size(100.dp),
    shape = CircleShape,
    border = BorderStroke(5.dp, Color(0XFF0F9D58)),
    contentPadding = PaddingValues(0.dp),
    colors = ButtonDefaults.outlinedButtonColors(contentColor = Color.Blue)
) {
    // Adding an Icon "Add" inside the Button
    Icon(Icons.Default.Add, contentDescription = "content description", tint = Color(0XFF0F9D58))
}

here中的更多内容...