DataBinding:如何使用Kotlin中的泛型创建具有多个ViewHolder (多布局)的回收视图

android {
    ...
    dataBinding {
        enabled = true
    }
}

<layout xmlns:android="http://schemas.android.com/apk/res/android">
    <data>
        <variable
            name="item"
            type="com.example.Item" />
    </data>
    
    <!-- 布局1 -->
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:visibility="@{item.type == 1 ? View.VISIBLE : View.GONE}">
        ...
    </LinearLayout>
    
    <!-- 布局2 -->
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:visibility="@{item.type == 2 ? View.VISIBLE : View.GONE}">
        ...
    </LinearLayout>
    
    <!-- 其他布局 -->
    ...
</layout>

class GenericViewHolder<T>(private val binding: ViewDataBinding) : RecyclerView.ViewHolder(binding.root) {
    fun bind(item: T) {
        binding.setVariable(BR.item, item)
        binding.executePendingBindings()
    }
}

class GenericAdapter<T>(private val items: List<T>) : RecyclerView.Adapter<GenericViewHolder<T>>() {
    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): GenericViewHolder<T> {
        val layoutInflater = LayoutInflater.from(parent.context)
        val binding = DataBindingUtil.inflate<ViewDataBinding>(layoutInflater, viewType, parent, false)
        return GenericViewHolder(binding)
    }
    
    override fun onBindViewHolder(holder: GenericViewHolder<T>, position: Int) {
        val item = items[position]
        holder.bind(item)
    }
    
    override fun getItemViewType(position: Int): Int {
        // 根据不同的数据类型返回对应的布局类型
        return when (items[position]) {
            is Type1 -> R.layout.layout_type1
            is Type2 -> R.layout.layout_type2
            // 其他布局类型
            ...
        }
    }
    
    override fun getItemCount(): Int {
        return items.size
    }
}

val items: List<Any> = listOf(Type1(), Type2(), ...)
val adapter = GenericAdapter(items)
recyclerView.adapter = adapter