想为循环视图的奇数和偶数卡片视图设置不同的背景颜色。尝试使用Adapter类的onBindViewHolder方法。
类NotificationAdapter（私有瓦尔通知：列表）：回收器视图适配器<NotificationAdapter.NotificationViewHolder>（）{

override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): NotificationViewHolder {
    val inflater = LayoutInflater.from(parent.context)
    val view = inflater.inflate(R.layout.card_notification, parent, false)
    return NotificationViewHolder(view)
}

override fun onBindViewHolder(holder: NotificationViewHolder, position: Int) {
    holder.txtTitle.text = notifications[position]

    if(position.isEven)
        it.root.setBackgroundColor(context.colorRes(R.color.sponsor_even_color))
    else
        it.root.setBackgroundColor(context.colorRes(R.color.sponsor_odd_color))

}

override fun getItemCount(): Int {
    return notifications.size
}

class NotificationViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {

    var txtTitle: TextView = itemView.findViewById(R.id.tv_notification_title)
    var txtDescription: TextView = itemView.findViewById(R.id.tv_notification_description)
}

}
发现错误：“未解析的引用：它”