要在Android Kotlin中创建自定义可滚动的时间选择器，可以使用RecyclerView和自定义适配器来实现。以下是一个示例代码：

首先，创建一个名为TimePickerAdapter的自定义适配器类：

import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.TextView
import androidx.recyclerview.widget.RecyclerView

class TimePickerAdapter(private val timeList: List) :
    RecyclerView.Adapter() {

    private var selectedPosition = -1

    inner class TimeViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
        val timeTextView: TextView = itemView.findViewById(R.id.timeTextView)

        init {
            itemView.setOnClickListener {
                val position = adapterPosition
                if (position != RecyclerView.NO_POSITION) {
                    selectedPosition = position
                    notifyDataSetChanged()
                }
            }
        }
    }

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

    override fun onBindViewHolder(holder: TimeViewHolder, position: Int) {
        val currentTime = timeList[position]
        holder.timeTextView.text = currentTime

        if (selectedPosition == position) {
            holder.timeTextView.setTextColor(holder.itemView.context.resources.getColor(R.color.selected_time))
        } else {
            holder.timeTextView.setTextColor(holder.itemView.context.resources.getColor(R.color.default_time))
        }
    }

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

接下来，创建一个名为MainActivity的主活动类，并在其中设置RecyclerView和时间列表：

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import androidx.recyclerview.widget.LinearLayoutManager
import androidx.recyclerview.widget.RecyclerView

class MainActivity : AppCompatActivity() {

    private lateinit var timeRecyclerView: RecyclerView
    private lateinit var timeAdapter: TimePickerAdapter

    private val timeList = listOf("09:00", "10:00", "11:00", "12:00", "13:00", "14:00", "15:00", "16:00")

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

        timeRecyclerView = findViewById(R.id.timeRecyclerView)
        timeRecyclerView.layoutManager = LinearLayoutManager(this)
        timeAdapter = TimePickerAdapter(timeList)
        timeRecyclerView.adapter = timeAdapter
    }
}

最后，创建一个名为time_item.xml的布局文件，定义时间选择器中每个时间项的外观：

确保在项目的res/values/colors.xml文件中定义selected_time和default_time颜色：

    #FF0000
    #000000

这样，你就可以在Android Kotlin中创建一个自定义的可滚动时间选择器了。