{"info":[
        {"name":"Ajay","id":"111","email":"ajay@gmail.com"},
        {"name":"John","id":"112","email":"john@gmail.com"},
        {"name":"Rahul","id":"113","email":"rahul@gmail.com"},
        {"name":"Maich","id":"114","email":"maich@gmail.com"},
        {"name":"Vikash","id":"115","email":"vikash@gmail.com"},
        {"name":"Mayank","id":"116","email":"mayank@gmail.com"},
        {"name":"Prem","id":"117","email":"prem@gmail.com"},
        {"name":"Chandan","id":"118","email":"chandan@gmail.com"},
        {"name":"Soham","id":"119","email":"soham@gmail.com"},
        {"name":"Mukesh","id":"120","email":"mukesh@gmail.com"},
        {"name":"Ajad","id":"121","email":"ajad@gmail.com"}
        ]
}

compile 'com.squareup.okhttp3:okhttp:3.8.1'

package example.javatpoint.com.kotlinjsonparsing

public class Model{
    lateinit var id:String
    lateinit var name:String
    lateinit var email:String

    constructor(id: String,name:String,email:String) {
        this.id = id
        this.name = name
        this.email = email
    }

    constructor()
}

package example.javatpoint.com.kotlinjsonparsing

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

class CustomAdapter(context: Context,arrayListDetails:ArrayList) : BaseAdapter(){

    private val layoutInflater: LayoutInflater
    private val arrayListDetails:ArrayList

    init {
        this.layoutInflater = LayoutInflater.from(context)
        this.arrayListDetails=arrayListDetails
    }

    override fun getCount(): Int {
        return arrayListDetails.size
    }

    override fun getItem(position: Int): Any {
        return arrayListDetails.get(position)
    }

    override fun getItemId(position: Int): Long {
        return position.toLong()
    }

    override fun getView(position: Int, convertView: View?, parent: ViewGroup): View? {
        val view: View?
        val listRowHolder: ListRowHolder
        if (convertView == null) {
            view = this.layoutInflater.inflate(R.layout.adapter_layout, parent, false)
            listRowHolder = ListRowHolder(view)
            view.tag = listRowHolder
        } else {
            view = convertView
            listRowHolder = view.tag as ListRowHolder
        }

        listRowHolder.tvName.text = arrayListDetails.get(position).name
        listRowHolder.tvEmail.text = arrayListDetails.get(position).email
        listRowHolder.tvId.text = arrayListDetails.get(position).id
        return view
    }
}

private class ListRowHolder(row: View?) {
    public val tvName: TextView
    public val tvEmail: TextView
    public val tvId: TextView
    public val linearLayout: LinearLayout

    init {
        this.tvId = row?.findViewById(R.id.tvId) as TextView
        this.tvName = row?.findViewById(R.id.tvName) as TextView
        this.tvEmail = row?.findViewById(R.id.tvEmail) as TextView
        this.linearLayout = row?.findViewById(R.id.linearLayout) as LinearLayout
    }
}

package example.javatpoint.com.kotlinjsonparsing

import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.view.View
import android.widget.ListView
import android.widget.ProgressBar
import okhttp3.*
import org.json.JSONArray
import org.json.JSONObject
import java.io.IOException
import kotlin.collections.ArrayList

class MainActivity : AppCompatActivity() {
    lateinit var progress:ProgressBar
    lateinit var listView_details: ListView
    var arrayList_details:ArrayList = ArrayList();
    //OkHttpClient creates connection pool between client and server
    val client = OkHttpClient()
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        progress = findViewById(R.id.progressBar)
        progress.visibility = View.VISIBLE
        listView_details = findViewById(R.id.listView) as ListView
        run("http://10.0.0.7:8080/jsondata/index.html")
    }

    fun run(url: String) {
        progress.visibility = View.VISIBLE
        val request = Request.Builder()
                .url(url)
                .build()

        client.newCall(request).enqueue(object : Callback {
            override fun onFailure(call: Call, e: IOException) {
                progress.visibility = View.GONE
            }

            override fun onResponse(call: Call, response: Response) {
                var str_response = response.body()!!.string()
                //creating json object
                val json_contact:JSONObject = JSONObject(str_response)
                //creating json array
                var jsonarray_info:JSONArray= json_contact.getJSONArray("info")
                var i:Int = 0
                var size:Int = jsonarray_info.length()
                arrayList_details= ArrayList();
                for (i in 0.. size-1) {
                    var json_objectdetail:JSONObject=jsonarray_info.getJSONObject(i)
                    var model:Model= Model();
                    model.id=json_objectdetail.getString("id")
                    model.name=json_objectdetail.getString("name")
                    model.email=json_objectdetail.getString("email")
                    arrayList_details.add(model)
                }

                runOnUiThread {
                    //stuff that updates ui
                    val obj_adapter : CustomAdapter
                    obj_adapter = CustomAdapter(applicationContext,arrayList_details)
                    listView_details.adapter=obj_adapter
                }
                progress.visibility = View.GONE
            }
        })
    }
}