AlertDialog 设置不同按钮的样式

dialog.setOnShowListener {
    dialog.getButton(AlertDialog.BUTTON_POSITIVE).setTextColor(ContextCompat.getColor(this,R.color.el_danger))
    dialog.getButton(AlertDialog.BUTTON_NEGATIVE).setTextColor(ContextCompat.getColor(this,R.color.el_warning))
}