adapter

package com.example.todo

import android.app.AlertDialog
import android.content.DialogInterface
import android.util.Log
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.Button
import android.widget.TextView
import android.widget.Toast
import androidx.recyclerview.widget.RecyclerView
import kotlinx.android.synthetic.main.list_item.view.*


class TodoAdapter(private val myDataset: Model) : RecyclerView.Adapter<TodoAdapter.MyViewHolder>() {

    class MyViewHolder(val view: View) : RecyclerView.ViewHolder(view){
        val todoText : TextView = itemView.todoText
        val buttonDelete : Button = itemView.buttonHapus
        val buttonEdit : Button = itemView.buttonEdit
    }

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): TodoAdapter.MyViewHolder {
        var view = LayoutInflater.from(parent.context).inflate(R.layout.list_item, parent, false)
        return MyViewHolder(view)
    }

    // Replace the contents of a view (invoked by the layout manager)
    override fun onBindViewHolder(holder: MyViewHolder, index: Int) {
        holder.todoText.text = myDataset.data.value!![index].task

        //remove
        holder.buttonDelete.setOnClickListener{ view->
            myDataset.deleteTodo(holder.adapterPosition) // method from Model
            notifyItemRemoved(index) // delete berdasarkan index pada tampilan
            notifyItemRangeChanged(index,myDataset.data.value!!.size) // merubah index kembali
        }

        //edit
        holder.buttonEdit.setOnClickListener{ view->
            val context  = holder.itemView.context
            val inflater = LayoutInflater.from(context)
            val view = inflater.inflate(R.layout.pop_up,null)

            // textclicked
            val prevText:String = myDataset.data.value!![index].task // data sebelumnya g
            val editText = view.findViewById<TextView>(R.id.editInput)
            editText.text = prevText

            // dialot / Alert
            val alertDialog = AlertDialog.Builder(context)
            alertDialog
                .setView(view)
                .setPositiveButton("Update",DialogInterface.OnClickListener{ dialog,id ->
                    myDataset.updateTodo(holder.adapterPosition, editText.text.toString())
                    notifyDataSetChanged()
                })
                .show()
        }
    }

    // Return the size of your dataset (invoked by the layout manager)
    override fun getItemCount() = myDataset.data.value!!.size
}