来自 recyclerview 的 Kotlin 意图 onclick。 holder.title.context 上的错误

Question

我试图让我的 recyclerview 卡在单击后返回带有一些传递值的主活动。我已尝试按照this 的回答在我的 recyclerview 中的项目上获取 setOnClickListener，但仍然收到错误。

package com.example.colorpicker2finalattempt

import android.content.Context
import android.content.Intent
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.TextView
import androidx.core.content.ContextCompat.startActivity
import androidx.recyclerview.widget.RecyclerView
import com.google.android.material.snackbar.Snackbar
import kotlinx.android.synthetic.main.recycler_recall_list.view.*

class ColorAdapter(private val colorList: List<Color>): RecyclerView.Adapter<ColorAdapter.ColorViewHolder>() {

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ColorViewHolder {
        val itemView = LayoutInflater.from(parent.context).inflate(R.layout.recycler_recall_list, parent, false)

        return ColorViewHolder(itemView)

    }

    override fun onBindViewHolder(holder: ColorViewHolder, position: Int) {
        val currentItem = colorList[position]

        holder.previewView.text = currentItem.colorPreview
        holder.nameView.text = currentItem.colorName
        holder.redView.text = currentItem.redValue.toString()
        holder.greenView.text = currentItem.greenValue.toString()
        holder.blueView.text = currentItem.blueValue.toString()

       holder.itemView.setOnClickListener {
            val context = holder.title.context
            val intent: Intent = Intent(context, MainActivity::class.java)
            intent.putExtra("testingRItem", currentItem.redValue.toString())
            intent.putExtra("testingGItem", currentItem.greenValue.toString())
            intent.putExtra("testingBItem", currentItem.blueValue.toString())
            context.startActivity(intent)
        }
    }

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

    class ColorViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
        val previewView: TextView = itemView.tv_colorpreview
        val nameView: TextView = itemView.tv_colorname
        val redView: TextView = itemView.tv_redvalue
        val greenView: TextView = itemView.tv_greenvalue
        val blueView: TextView = itemView.tv_bluevalue
    }

}

我收到一个未解决的标题参考，我该如何解决？

Answer 1

在 ColorViewHolder 中定义标题

    class ColorViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
     val title: TextView = itemView.tv_ title// your textview id

      }