vivek1794

import UIKit
import shared

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        
        let label = UILabel(frame: CGRect(x: 0, y: 0, width: 230, height: 21))
        label.center = CGPoint(x: 160, y: 285)

vivek1794

package xyz.vivekc.kotlinmultiplatformdemo

import android.os.Bundle
import android.support.v7.app.AppCompatActivity
import android.widget.TextView
import xyz.vivekc.shared.getDate

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {

vivek1794

package xyz.vivekc.shared

import platform.Foundation.NSDate

actual fun getCurrentDate() = NSDate().toString()

vivek1794

package xyz.vivekc.shared

import java.util.*

actual fun getCurrentDate() = Date().toString()

vivek1794

package xyz.vivekc.shared

//Mark the function dependent on platform implementation to be `expect`
expect fun getCurrentDate(): String

//This is the function which would be called by the Android or iOS app
fun getDate(): String {
    return "Today's Date is ${getCurrentDate()}"
}

vivek1794

apply plugin: 'kotlin-multiplatform'

kotlin {
    targets {

        //create a target for Android from presets.jvm
        fromPreset(presets.jvm, 'android')

        //Xcode sets SDK_NAME environment variable - based on whether the 
        //target device is a simulator or a real device, the preset should vary

vivek1794

internal class SignallingClientKotlin {


    internal interface SignalingInterface {
        fun onRemoteHangUp(msg: String)

        fun onOfferReceived(data: JSONObject)

        fun onAnswerReceived(data: JSONObject)

vivek1794

class MainActivityKotlin : AppCompatActivity(), View.OnClickListener, SignallingClientKotlin.SignalingInterface {
    private val rootEglBase by lazy { EglBase.create() }

    private val peerConnectionFactory: PeerConnectionFactory by lazy {
        //Initialize PeerConnectionFactory globals.
        val initializationOptions = PeerConnectionFactory.InitializationOptions.builder(this)
                .setEnableVideoHwAcceleration(true)
                .createInitializationOptions()
        PeerConnectionFactory.initialize(initializationOptions)

vivek1794

class SignallingClient {
    private static SignallingClient instance;
    private String roomName = null;
    private Socket socket;
    boolean isChannelReady = false;
    boolean isInitiator = false;
    boolean isStarted = false;
    private SignalingInterface callback;

    //This piece of code should not go into production!!

vivek1794

public class MainActivity extends AppCompatActivity implements View.OnClickListener, SignallingClient.SignalingInterface {
    PeerConnectionFactory peerConnectionFactory;
    MediaConstraints audioConstraints;
    MediaConstraints videoConstraints;
    MediaConstraints sdpConstraints;
    VideoSource videoSource;
    VideoTrack localVideoTrack;
    AudioSource audioSource;
    AudioTrack localAudioTrack;