Mastering Kotlin Coroutines/

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Coroutines Builders: The launch Builder

Coroutines Builders: The launch Builder

Learn about the launch coroutine builder of the kotlinx.coroutines library.

We'll cover the following...

The launch builder

Conceptually, the launch works similarly to starting a new thread (thread function). We start a coroutine, which will run independently, like a firework launched into the air. This is how we use launch—to start a process.

fun main() {
   GlobalScope.launch {
       delay(1000L)
       println("World 1!")
   }
   GlobalScope.launch {
       delay(1000L)
       println("World 2!")
   }
   GlobalScope.launch {
       delay(1000L)
       println("World 3!")
   }
   println("Hello,")
   Thread.sleep(2000L)
}
launch Builder as a thread

The launch function is an extension function on the CoroutineScope interface. This is part of a vital mechanism called ...