인프런 커뮤니티 질문&답변

초보라서 정확한 상황을 설명할 순 없지만

이번 장 구현할 때 똑같이 구현했는데도 전 item.detail의 id들이 불러와지질 않습니다.

import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.appcompat.view.menu.MenuView
import androidx.fragment.app.Fragment
import androidx.recyclerview.widget.RecyclerView
import com.bumptech.glide.Glide
import com.example.instagram.R
import com.example.instagram.navigation.model.ContentDTO
import com.google.firebase.firestore.FirebaseFirestore

class DetailViewFragment : Fragment() {
    var firestore: FirebaseFirestore? = null
    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        var view = LayoutInflater.from(activity).inflate(R.layout.fragment_detail, container, false)
        firestore = FirebaseFirestore.getInstance()
        return view
    }

    inner class DetailViewRecyclerViewAdapter : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
        var contentDTOs: ArrayList<ContentDTO> = arrayListOf()
        var contentUidList: ArrayList<String> = arrayListOf()

        init {
            firestore?.collection("images")?.orderBy("timestamp")
                ?.addSnapshotListener { querySnapshot, firebaseFirestoreException ->
                    contentDTOs.clear()
                    contentUidList.clear()
                    for (snapshot in querySnapshot!!.documents) {
                        var item = snapshot.toObject(ContentDTO::class.java)
                        contentDTOs.add(item!!)
                        contentUidList.add(snapshot.id)
                    }
                    notifyDataSetChanged()
                }
        }

        override fun onCreateViewHolder(p0: ViewGroup, p1: Int): RecyclerView.ViewHolder {
            var view = LayoutInflater.from(p0.context).inflate(R.layout.item_detail, p0, false)
            return CustomViewHolder(view)
        }

        inner class CustomViewHolder(view: View) : RecyclerView.ViewHolder(view)

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

        override fun onBindViewHolder(p0: RecyclerView.ViewHolder, p1: Int) {
            var viewholder = (p0 as CustomViewHolder).itemView


            //Userid
            viewholder.detale
            Glide.with(p0.itemView.context).load(contentDTOs!![p1].imageUri).into(viewholder.deta)
        }

    }
}