将来自Kotlin中不同类的数据添加到MainActivity中的列表

// 数据类示例
data class MyData(val name: String, val age: Int)

class MainActivity : AppCompatActivity() {
    // 列表变量
    private val dataList = ArrayList<MyData>()
    private lateinit var adapter: MyAdapter

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

        // 初始化列表视图和适配器
        val recyclerView = findViewById<RecyclerView>(R.id.recyclerView)
        adapter = MyAdapter(dataList)
        recyclerView.adapter = adapter

        // 添加数据示例
        val data1 = MyData("John", 25)
        val data2 = MyData("Emily", 30)
        dataList.add(data1)
        dataList.add(data2)

        // 更新列表视图
        adapter.notifyDataSetChanged()
    }
}

// 适配器示例
class MyAdapter(private val dataList: List<MyData>) : RecyclerView.Adapter<MyAdapter.ViewHolder>() {

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

    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
        val data = dataList[position]
        holder.nameTextView.text = data.name
        holder.ageTextView.text = data.age.toString()
    }

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

    class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
        val nameTextView: TextView = itemView.findViewById(R.id.nameTextView)
        val ageTextView: TextView = itemView.findViewById(R.id.ageTextView)
    }
}