Lau Board Android

Lau.kt

import android.content.Context
import android.media.MediaPlayer
import android.os.AsyncTask

/**
 * Created by Apollonian on 9/16/17.
 */
object Lau {
    val quotes = arrayOf(
            R.raw.allright to "Alrigth",
            R.raw.anyquestions to "Any Questions?",
            R.raw.aye to "AYE",
            R.raw.candobetter to "Can Do Better",
            R.raw.doable to "It's Doable",
            R.raw.java to "Cup of Java",
            R.raw.lunch to "Lunchtime",
            R.raw.moses to "I'm Moses",
            R.raw.ohh to "OHH",
            R.raw.ohno to "OH NO!",
            R.raw.ok to "OK",
            R.raw.putawayyourcellphone to "Put away Cell Phone",
            R.raw.seemepls to "See Me",
            R.raw.verydoable to "VERY Doable"
    )

    private var mediaPlayer: MediaPlayer? = null

    private class PlayTask : AsyncTask<Pair<Int, Context>, Void, Void?>() {
        override fun doInBackground(vararg p0: Pair<Int, Context>?): Void? {
            mediaPlayer?.release()
            val arg = p0.first() ?: return null
            mediaPlayer = MediaPlayer.create(arg.second, quotes[arg.first].first)
            mediaPlayer!!.start()
            return null
        }
    }

    fun speak(position: Int, context: Context) {
        PlayTask().execute(position to context)
    }
}

MainActivity.kt

import android.os.Bundle
import android.support.v7.app.AppCompatActivity
import android.widget.GridView


class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        val gridView = findViewById<GridView>(R.id.grid_view)
        gridView.adapter = TextViewCellAdapter(this)

        gridView.setOnItemClickListener { _, _, position, _ ->
            Lau.speak(position, this)
        }
    }
}

TextViewCellAdapter.kt

import android.content.Context
import android.view.View
import android.view.ViewGroup
import android.widget.BaseAdapter
import android.widget.TextView

/**
 * Created by Apollonian on 9/16/17.
 */
data class TextViewCellAdapter(val context: Context) : BaseAdapter() {
    override fun getView(position: Int, recycledView: View?, parent: ViewGroup?): View {
        val textView: TextView
        if (recycledView is TextView) {
            textView = recycledView
        } else {
            textView = TextView(context);
            textView.textSize = 27f
            textView.layoutParams = ViewGroup.LayoutParams(420, 250)
            textView.setPadding(8, 8, 8, 8)
        }
        textView.text = Lau.quotes[position].second
        return textView
    }

    override fun getItem(position: Int): Any = Lau.quotes[position]

    override fun getItemId(position: Int): Long = position.toLong()

    override fun getCount(): Int = Lau.quotes.count()
}