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YO TENGO EL FLOW

J. Gabriel Gutierrez

Android Developer

@Medellin Android

@llanoxco

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Si tengo el $$$ Flow?

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Coroutines

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DEMO

//Demos

//https://play.kotlinlang.org/

//Sequence

fun foo(): Sequence<Int> = sequence { // sequence builder

for (i in 1..3) {

Thread.sleep(100) // pretend we are computing it

yield(i) // yield next value

}

fun main() {

foo().forEach { value -> println(value) }

}

// Suspend functions

suspend fun foo(): List<Int> {

delay(1000) // pretend we are doing something asynchronous here

return listOf(1, 2, 3)

}

fun main() = runBlocking<Unit> {

foo().forEach { value -> println(value) }

}

// Flow

fun foo(): Flow<Int> = flow { // flow builder

for (i in 1..3) {

delay(100) // pretend we are doing something useful here

emit(i) // emit next value

}

fun main() = runBlocking<Unit> {

// Launch a concurrent coroutine to check if the main thread is blocked

launch {

for (k in 1..3) {

println("I'm not blocked $k")

delay(100)

}

// Collect the flow

foo().collect { value -> println(value) }

}

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