如何在安卓上使用Kotlin在活动加载后处理GridView项目

import android.widget.GridView
import android.widget.AdapterView
import android.widget.Toast

val gridView = findViewById<GridView>(R.id.gridView)
gridView.adapter = MyAdapter(this) // 使用自定义适配器时，替换MyAdapter为你的适配器类名

class MyAdapter(private val context: Context) : BaseAdapter() {

    override fun getCount(): Int {
        // 返回项目的总数
        return 10
    }

    override fun getItem(position: Int): Any {
        // 返回指定位置的项目对象
        return "Item $position"
    }

    override fun getItemId(position: Int): Long {
        // 返回指定位置的项目ID
        return position.toLong()
    }

    override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
        // 返回指定位置的项目视图
        val textView = TextView(context)
        textView.text = getItem(position) as String
        return textView
    }
}

gridView.onItemClickListener = AdapterView.OnItemClickListener { parent, view, position, id ->
    val selectedItem = parent.getItemAtPosition(position) as String
    Toast.makeText(this@MainActivity, "Clicked: $selectedItem", Toast.LENGTH_SHORT).show()
}