Kotlin Coroutines Wait Task to Complete

runBlocking or async await

Assuming you launch a coroutines on main/ui thread to display result from an heavy io operation.

launch(Dispatchers.Main) {    val result = runBlocking(Dispatchers.IO) {        fetchSomething()    }    Toast.makeText(context, result, Toast.LENGTH_LONG).show()}


launch(Dispatchers.Main) {    val queue = async(Dispatchers.IO) {        fetchSomething()    }    val result = queue.await()    Toast.makeText(context, result, Toast.LENGTH_LONG).show()}

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