RecyclerView/RxEvent/ViewHolder/Adapter example in Kotlin

item_row.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="64dp"
    xmlns:tools="http://schemas.android.com/tools">

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        tools:text="Avaria 001"
        android:textSize="20sp"
        android:layout_gravity="center_vertical"
        android:layout_marginLeft="16dp"/>

    <ImageButton
        android:id="@+id/imageViewDelete"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_delete_black_24dp"
        android:layout_gravity="right|center_vertical"
        style="@style/Base.Widget.AppCompat.Button.Borderless.Colored"
        android:layout_marginRight="8dp"/>
</FrameLayout>

RecyclerViewAdapter.kt

import android.support.v7.widget.RecyclerView
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import kotlinx.android.synthetic.main.item_container.view.*
import rx.Observable
import rx.subjects.PublishSubject
import javax.inject.Inject

class RecyclerViewAdapter
@Inject
constructor() : RecyclerView.Adapter<RecyclerViewAdapter.RecyclerViewAdapterViewHolder>() {

    private val clickSubject = PublishSubject.create<YourObject>()
    val clickEvent: Observable<YourObject> = clickSubject

    var  dataList: MutableList<YourObject> = emptyList<YourObject>().toMutableList()
        set(value) {
            field = value
            notifyDataSetChanged()
        }

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

    override fun onBindViewHolder(holder: RecyclerViewAdapterViewHolder, position: Int) {
        val data = dataList[position]

        holder.textViewIso.text = data.fieldname
    }

    override fun getItemCount(): Int = dataList.size

    inner class RecyclerViewAdapterViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {

        val textViewUnidade = itemView.textTest

        init {
            itemView.setOnClickListener{
                clickSubject.onNext(dataList[layoutPosition])
            }
        }
    }
}

recyclerViewExample.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
  
    <android.support.v7.widget.RecyclerView
                android:id="@+id/recyclerView"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                app:layoutManager="android.support.v7.widget.LinearLayoutManager"
                tools:listitem="@layout/item_row"/>
        />
</FrameLayout>