hissain

data class Student(  
   @SerializedName("key_name") 
   var name: String? = null, 
   @SerializedName("key_address") 
   var address: String? = null) {
}

val student = Student("Mark", "London, 12000") // object
val json = Gson().toJson(student)  // json string

hissain

val json1 = """
{ 
    "name": "Mark", 
    "address": "London":
 }"""
 
val student = Gson().fromJson(json1, Student::class.java)

hissain

val student = Student("Alex", "Rome, 1500") // instance
val jsonString = Gson().toJson(student)  // json string

hissain

data class Student (
  var name: String? = null, 
  var address: String? = null) {
}
val student = Student("Alex", "Rome") // instance

hissain

dependencies {
    ...
    implementation 'com.google.code.gson:gson:2.8.5'
    ...
}

hissain

private fun loadWebView(){

    val loader = Thread {
        when {
            MyReachability.hasServerConnected(this) -> runOnUiThread {               
                hideLoadingDialog()
                Log.d(classTag, "Loading ${Constants.LANDING_SERVER}")
                mWebView.loadUrl(Constants.LANDING_SERVER)
            }
            MyReachability.hasInternetConnected(this) -> runOnUiThread {

hissain

object MyReachability {

    private fun hasNetworkAvailable(context: Context): Boolean {
        val service = Context.CONNECTIVITY_SERVICE
        val manager = context.getSystemService(service) as ConnectivityManager?
        val network = manager?.activeNetworkInfo
        Log.d(classTag, "hasNetworkAvailable: ${(network != null)}")
        return (network?.isConnected) ?: false
    }

hissain

//Constants.LANDING_SERVER = "https://www.myserver.com"
fun hasServerConnected(context: Context): Boolean {
    if (hasNetworkAvailable(context)) {
        try {
            val connection = URL(Constants.LANDING_SERVER).openConnection() as HttpURLConnection
            connection.setRequestProperty("User-Agent", "Test")
            connection.setRequestProperty("Connection", "close")
            connection.connectTimeout = 1000 //configurable
            connection.connect()
            Logger.d(classTag, "hasServerConnected: ${(connection.responseCode == 200)}")

hissain

//Constants.REACHABILITY_SERVER = "https://www.google.com"
fun hasInternetConnected(context: Context): Boolean {
    if (hasNetworkAvailable(context)) {
        try {
            val connection = URL(Constants.REACHABILITY_SERVER).openConnection() as HttpURLConnection
            connection.setRequestProperty("User-Agent", "ConnectionTest")
            connection.setRequestProperty("Connection", "close")
            connection.connectTimeout = 1000 // configurable
            connection.connect()
            Logger.d(classTag, "hasInternetConnected: ${(connection.responseCode == 200)}")

hissain

private fun hasNetworkAvailable(context: Context): Boolean {
    val service = Context.CONNECTIVITY_SERVICE
    val manager = context.getSystemService(service) as ConnectivityManager?
    val network = manager?.activeNetworkInfo
    Logger.d(classTag, "hasNetworkAvailable: ${(network != null)}")
    return (network != null)
}