jorgecasariego

class Yerba (val name: String, val brand: String, val db: Database){
    fun saveYerbaToDb(yerba: Yerba) {
        db.save(yerba)
    }
}

jorgecasariego

override fun areItemsTheSame(oldItem: SleepNight, newItem: SleepNight): Boolean {
    TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
}

override fun areContentsTheSame(oldItem: SleepNight, newItem: SleepNight): Boolean {
    TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
}

jorgecasariego

class SleepNightDiffCallback : DiffUtil.ItemCallback<SleepNight>() {
}

jorgecasariego

fun main() {
    println("Start")
    val activity = Activity()
    activity.doLotOfThings()
    Thread.sleep(2000)
    activity.destroy()
    println("Done")
}

class Activity : CoroutineScope by CoroutineScope(Dispatchers.Default) {

jorgecasariego

fun main() {
    println("Start")
    val activity = Activity()
    activity.doLotOfThings()
    Thread.sleep(2000)
    activity.destroy()
    println("Done")
}

private class Activity {

jorgecasariego

fun main() = runBlocking {
    log("Start")
    hello()
    log("Done")
}

private suspend fun hello() = coroutineScope {
    launch {
        // context of the parent, main runBlocking coroutine
        println("[${Thread.currentThread().name}] from parent dispatcher")

jorgecasariego

fun main() = runBlocking {
    log("Start")
    hello()  // not suspendable, no waiting!
    log("Done")
}


private fun CoroutineScope.hello() = launch(Dispatchers.Default) {
    delay(1000L)
    log("Hello1")

jorgecasariego

fun main() = runBlocking {
    println("Start")
    hello()
    println("Done")
}

suspend fun hello() = coroutineScope {
    launch {
        delay(1000L)
        println("Hello")

jorgecasariego

fun main() = runBlocking {
    println("Start")
    hello(this)
    println("Done")
}

fun hello(scope: CoroutineScope) { // or as extension function 
    scope.launch {
        delay(1000L)
        println("Hello")

jorgecasariego

fun main() = runBlocking {
    println("Start")

    // Start a coroutine (Child coroutine of runBlocking)
    launch { // or `this.launch`.
        delay(1000L)
        println("Hello")
    }
    println("Done")
}