List View (Kotlin)

package com.example.carloschaves.alugar000

import android.content.Context
import android.graphics.Color
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.view.View
import android.view.ViewGroup
import android.widget.BaseAdapter
import android.widget.ListView
import android.widget.TextView

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        val listView = findViewById<ListView>(R.id.main_listview)
        val redColor = Color.parseColor( "#FF0000")
        listView.setBackgroundColor(redColor)

        listView.adapter = MyCustomAdapter(  this) // this needs to be my custom adapter telling my list what to rendering
    }

        private class MyCustomAdapter (context: Context): BaseAdapter() {

            private val mContext: Context

            init {
                mContext = context
            }

            // responsible for how many rows in may list
            override fun getCount(): Int {
                return 5
            }

            //you can also ignore this
            override fun getItemId(position: Int): Long{
                return position.toLong()
            }

            //you can ignore this for now
            override fun getItem(position: Int): Any {
                return "Test String"
            }

            // responsible for rendering out each row
            override fun getView(position: Int, convertView: View?, viewGroup: ViewGroup?): View {
                val textView = TextView(mContext)
                textView.text = "Here is my Row for my listview"
                return textView
            }

        }

}