Android 即使我在单选按钮上明确设置了选中状态，RecyclerView 中的单选按钮也会随机取消选中

为了使ViewHolder单独处理每个单选按钮，而不重复使用以前单选按钮的状态，我将单选按钮项是否被选中的状态存储在布尔值列表中，并根据该列表设置单选按钮状态.但是，当我向下和向上滚动时，被切换的单选按钮会被随机取消切换，即使isCheckedList包含每个单选按钮的正确布尔信息(我用logd()打印列表，以验证它是否实际存储了状态)

知道我错过了什么吗？

class QuestionAdapter(context: Context) :
    RecyclerView.Adapter<QuestionAdapter.QuestionViewHolder>() {

    private val listOfQuestion: List<String>
    private val listSize = 20
    private val isCheckedList: MutableList<Boolean> = MutableList(listSize) { false }

   //Initialize a list of 20 questions. 
    init {
        val allQuestions = context.resources.getStringArray(R.array.questions).toList()

        listOfQuestion = allQuestions
            .shuffled()
            .take(listSize)
    }

    class QuestionViewHolder(val view: View) : RecyclerView.ViewHolder(view) {
        val questionText = view.findViewById<TextView>(R.id.question)
        val radioButton = view.findViewById<RadioButton>(R.id.yes)
       
    }

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

    override fun onBindViewHolder(holder: QuestionViewHolder, position: Int) {

        val item = listOfQuestion[position]
        holder.questionText.text = item

        holder.radioButton.isChecked = isCheckedList[position]
        holder.radioButton.setOnCheckedChangeListener { _, isChecked ->
                isCheckedList[holder.adapterPosition] = isChecked
                Log.d("Adapter", "list: $isCheckedList ")
        }
    }
    
    override fun getItemCount(): Int {
        return listOfQuestion.size
    }


}