ListView with Custom BaseAdapter in Kotlin - Android Studio 3.0.1

>> Sample to demonstrate the use of Kotlin in Android

	package com.db.listviewbaseadapterkotlin
	import android.support.v7.app.AppCompatActivity
	import android.os.Bundle
	import android.view.View
	import android.widget.ListView
	class MainActivity : AppCompatActivity() {
	var lv : ListView? = null;
	var emojis = arrayOf(
	"Smile :) ",
	"Wink ;) ",
	"Laugh :D ",
	"Sad :( ",
	"Tongue :p ",
	"Angry :@ ",
	"Confused :-s ",
	"Crying :'( ",
	"Evil >D ",
	"Surprised :o ",
	"Speechless :-|",
	"Kiss :* ",
	"Devil (6) ",
	"Angel (a) ",
	"Tired (:| ",
	"Sick :-& ",
	"Love <3 ",
	"Heartbroken (u) ",
	"Dont Tell :-# ",
	"Sweat #:-S ",
	"Blushing :$ ",
	"Flower (f) ",
	"Sleeping I-) ",
	"Afraid :-SS ",
	"Jawdrop 8[] "
	)
	var emojxImg = intArrayOf(
	R.drawable.emoticon_smile,
	R.drawable.emoticon_wink,
	R.drawable.emoticon_laugh,
	R.drawable.emoticon_sad,
	R.drawable.emoticon_tongue,
	R.drawable.emoticon_angry,
	R.drawable.emoticon_confused,
	R.drawable.emoticon_crying,
	R.drawable.emoticon_evil,
	R.drawable.emoticon_surprised,
	R.drawable.emoticon_speechless,
	R.drawable.emoticon_kiss,
	R.drawable.emoticon_devil,
	R.drawable.emoticon_angel,
	R.drawable.emoticon_tired,
	R.drawable.emoticon_sick,
	R.drawable.emoticon_love,
	R.drawable.emoticon_heartbroken,
	R.drawable.emoticon_dont_tell,
	R.drawable.emoticon_sweat,
	R.drawable.emoticon_blushing,
	R.drawable.emoticon_flower,
	R.drawable.emoticon_sleeping,
	R.drawable.emoticon_afraid,
	R.drawable.emoticon_jawdrop
	)
	override fun onCreate(savedInstanceState: Bundle?) {
	super.onCreate(savedInstanceState)
	setContentView(R.layout.activity_main)
	lv = findViewById<View>(R.id.list) as ListView
	val emojisAdapter = EmojisAdapter(applicationContext, emojis, emojxImg)
	lv!!.setAdapter(emojisAdapter)
	}
	}

view raw MainActKot.kt hosted with ❤ by GitHub

	package com.db.listviewbaseadapterkotlin
	import android.content.Context
	import android.view.View
	import android.view.ViewGroup
	import android.widget.BaseAdapter
	import android.view.LayoutInflater
	import android.widget.ImageView
	import android.widget.TextView
	/**
	* Created by DB on 21-12-2017.
	*/
	class EmojisAdapter(applicationContext: Context?, emojis: Array<String>, emojxImg: IntArray) : BaseAdapter() {
	var context: Context? = applicationContext
	var emojis: Array<String>? = emojis
	var emojxImg: IntArray? = emojxImg
	var inflater: LayoutInflater? = null
	init {
	this.inflater = LayoutInflater.from(context)
	}
	override fun getView(position: Int, convertView: View?, viewGroup: ViewGroup?): View {
	val view : View?
	val vh : ListRowHolder
	if(convertView == null){
	view = this.inflater!!.inflate(R.layout.list_item, viewGroup, false)
	vh = ListRowHolder(view)
	view?.tag = vh
	}else{
	view = convertView
	vh = view.tag as ListRowHolder
	}
	vh.emoTxt.setText(emojis!![position])
	vh.emoImg.setImageResource(emojxImg!![position])
	return view!!
	}
	override fun getItem(position: Int): Any {
	return emojis!![position]
	}
	override fun getItemId(position: Int): Long {
	return position.toLong()
	}
	override fun getCount(): Int {
	return emojis!!.size
	}
	private class ListRowHolder(row : View?){
	val emoTxt : TextView
	val emoImg : ImageView
	init {
	this.emoTxt = row?.findViewById<View>(R.id.emojiName) as TextView
	this.emoImg = row?.findViewById<View>(R.id.emojiImg) as ImageView
	}
	}
	}

view raw EmojiBaseAdapterKot.kt hosted with ❤ by GitHub

Github Source: Download Source Here