安卓开发 原生View 帮我写完整kotlin 代码 垂直recyclerview 嵌套水平recyclerview

好的，以下是完整的 Kotlin 代码：

class MainActivity : AppCompatActivity() {
    private lateinit var mRecyclerView: RecyclerView

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        mRecyclerView = findViewById(R.id.verticalRecyclerView)
        mRecyclerView.layoutManager = LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false)
        mRecyclerView.adapter = VerticalAdapter()
    }

    inner class VerticalAdapter : RecyclerView.Adapter<VerticalAdapter.VerticalViewHolder>() {

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

        override fun onBindViewHolder(holder: VerticalViewHolder, position: Int) {
            holder.mHorizontalRecyclerView.layoutManager = LinearLayoutManager(this@MainActivity, LinearLayoutManager.HORIZONTAL, false)
            holder.mHorizontalRecyclerView.adapter = HorizontalAdapter()
        }

        override fun getItemCount(): Int {
            return 10
        }

        inner class VerticalViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
            val mHorizontalRecyclerView: RecyclerView = itemView.findViewById(R.id.horizontalRecyclerView)
        }
    }

    inner class HorizontalAdapter : RecyclerView.Adapter<HorizontalAdapter.HorizontalViewHolder>() {

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

        override fun onBindViewHolder(holder: HorizontalViewHolder, position: Int) {
            holder.mTextView.text = (position + 1).toString()
        }

        override fun getItemCount(): Int {
            return 5
        }

        inner class HorizontalViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
            val mTextView: TextView = itemView.findViewById(R.id.textView)
        }
    }
}

这段代码实现了一个垂直的 RecyclerView，其中每个 item 包含一个水平的 RecyclerView。其中 VerticalAdapter 是垂直 RecyclerView 的适配器，HorizontalAdapter 是水平 RecyclerView 的适配器。VerticalViewHolder 中包含了一个水平 RecyclerView，HorizontalViewHolder 中包含了一个 TextView。