Commit 677728d

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Code after 'sharedflows are hot' lecture

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app/src/main/java/com/lukaslechner/coroutineusecasesonandroid/playground/flow/hot_and_cold_flows
- 1-flows_are_cold.kt
- 2_sharedflows_are_hot.kt

+52

-7

lines changed

Lines changed: 16 additions & 7 deletions

Original file line number	Diff line number	Diff line change
`@@ -3,25 +3,34 @@ package com.lukaslechner.coroutineusecasesonandroid.playground.flow.hot_and_cold`
`3`	`3`	`import kotlinx.coroutines.coroutineScope`
`4`	`4`	`import kotlinx.coroutines.delay`
`5`	`5`	`import kotlinx.coroutines.flow.flow`
`6`		`-import kotlinx.coroutines.flow.onEach`
	`6`	`+import kotlinx.coroutines.launch`
`7`	`7`
`8`	`8`	`fun coldFlow() = flow {`
`9`	`9`	`println("Emitting 1")`
`10`	`10`	`emit(1)`
`11`	`11`
	`12`	`+ delay(1000)`
`12`	`13`	`println("Emitting 2")`
`13`	`14`	`emit(2)`
`14`	`15`
	`16`	`+ delay(1000)`
`15`	`17`	`println("Emitting 3")`
`16`	`18`	`emit(3)`
`17`		`-}.onEach {`
`18`		`- delay(1000)`
`19`	`19`	`}`
`20`	`20`
`21`	`21`	`suspend fun main(): Unit = coroutineScope {`
`22`	`22`
`23`		`- coldFlow()`
`24`		`- .collect {`
`25`		`- println("Collector 1 collects: $it")`
`26`		`- }`
	`23`	`+ launch {`
	`24`	`+ coldFlow()`
	`25`	`+ .collect {`
	`26`	`+ println("Collector 1 collects: $it")`
	`27`	`+ }`
	`28`	`+ }`
	`29`	`+`
	`30`	`+ launch {`
	`31`	`+ coldFlow()`
	`32`	`+ .collect {`
	`33`	`+ println("Collector 2 collects: $it")`
	`34`	`+ }`
	`35`	`+ }`
`27`	`36`	`}`

Lines changed: 36 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,36 @@`
	`1`	`+package com.lukaslechner.coroutineusecasesonandroid.playground.flow.hot_and_cold_flows`
	`2`	`+`
	`3`	`+import kotlinx.coroutines.CoroutineScope`
	`4`	`+import kotlinx.coroutines.Dispatchers`
	`5`	`+import kotlinx.coroutines.delay`
	`6`	`+import kotlinx.coroutines.flow.MutableSharedFlow`
	`7`	`+import kotlinx.coroutines.launch`
	`8`	`+`
	`9`	`+fun main() {`
	`10`	`+`
	`11`	`+ val sharedFlow = MutableSharedFlow<Int>()`
	`12`	`+`
	`13`	`+ val scope = CoroutineScope(Dispatchers.Default)`
	`14`	`+`
	`15`	`+ scope.launch {`
	`16`	`+ repeat(5) {`
	`17`	`+ println("SharedFlow emits $it")`
	`18`	`+ sharedFlow.emit(it)`
	`19`	`+ delay(200)`
	`20`	`+ }`
	`21`	`+ }`
	`22`	`+`
	`23`	`+ scope.launch {`
	`24`	`+ sharedFlow.collect{`
	`25`	`+ println("Collected $it in collector 1")`
	`26`	`+ }`
	`27`	`+ }`
	`28`	`+`
	`29`	`+ scope.launch {`
	`30`	`+ sharedFlow.collect{`
	`31`	`+ println("Collected $it in collector 2")`
	`32`	`+ }`
	`33`	`+ }`
	`34`	`+`
	`35`	`+ Thread.sleep(1500)`
	`36`	`+}`

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