How to initialize a Thread in Kotlin?

Question

In Java it works by accepting an object which implements runnable :

Thread myThread = new Thread(new myRunnable())

where myRunnable

Answer 1

fun main(args: Array<String>) {

    Thread({
        println("test1")
        Thread.sleep(1000)
    }).start()

    val thread = object: Thread(){
        override fun run(){
            println("test2")
            Thread.sleep(2000)
        }
    }

    thread.start()

    Thread.sleep(5000)
}

Answer 2

Firstly, create a function for set default propery

fun thread(
  start: Boolean = true, 
  isDaemon: Boolean = false, 
  contextClassLoader: ClassLoader? = null, 
  name: String? = null, 
  priority: Int = -1, 
  block: () -> Unit
): Thread

then perform background operation calling this function

thread(start = true) {
     //Do background tasks...
}

Or kotlin coroutines also can be used to perform background task

GlobalScope.launch {

    //TODO("do background task...")
    withContext(Dispatchers.Main) {
        // TODO("Update UI")
    }
    //TODO("do background task...")
}

Answer 3

thread { /* your code here */ }