将EventHook从嵌套的FastAdapter传播到父FastAdapter

我有根 FastAdapter MultipleChoiceQuestionitem 延伸 AbstractBindingItem RecyclerView 这个里面还有一个叫做 MultipleChoiceItem

我想把点击从 多回音项 快速适配器 所以我基本上可以知道用户选择了哪个选项。这是我试过的。

abstract class MultipleChoiceSelectionEventHook : CustomEventHook<MultipleChoiceQuestionItem>() {
        override fun onBind(viewHolder: RecyclerView.ViewHolder): View? {
            return if (viewHolder is BindingViewHolder<*> && viewHolder.binding is ItemMultipleChoiceQuestionBinding)
                (viewHolder.binding as ItemMultipleChoiceQuestionBinding).recycler
            else null
        }

        override fun attachEvent(view: View, viewHolder: RecyclerView.ViewHolder) {
            ((view as RecyclerView).adapter as FastAdapter<*>).onClickListener = { _,_,item,_ ->
                if (item is MultipleChoiceItem) choiceSelected(item.id!!)
                false
            }
        }

        abstract fun choiceSelected(choiceId: String)
    }

这在运行时不起作用,因为在这一点上 回收视图 没有适配器集,我们只有 View 布局中的类。因此我得到一个 NullPointerException 在 ((view as RecyclerView).adapter .

MultipleChoiceQuestionItem::bindView() 方法。如果这是可能的话。。。

我将事件挂钩添加到根fast适配器,如下所示。

fastAdapter.addEventHook(object : MultipleChoiceQuestionItem.MultipleChoiceSelectionEventHook() {
                    override fun choiceSelected(choiceId: String) {
                        TODO("Do something with this choice:$choiceId")
                    }
                })