BottomNavigationView使用BadgeDrawable设置maxCharacterCount无效

[zhangjianzhu]

如题，求解
代码如下：
private fun setBadge(int: Int) {
badge = mainBottom.getOrCreateBadge(R.id.menu_project)
badge?.maxCharacterCount = 99
badge?.backgroundColor = Color.RED
badge?.badgeTextColor = Color.WHITE
if (int > 0) {
badge?.number = int
} else {
badge?.number = 0
mainBottom.removeBadge(R.id.menu_project)
}
}