Questions tagged [kotlin-sharedflow]
52 questions
0
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A bug about kotlin SharedFlow
I created a SharedFlow, and first I added a Collector to it. Then six coroutines were started to emit data inside. Delay for a certain amount of time to ensure that the data has been emitted. cancel some coroutines. Then added a new collector.
fun…
kkk
- 141
- 5
0
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1 answer
android kotlin Flow emitted values are not collected
I have model class:
data class TweetResponse(
val data: Data?,
val matching_rules: List?,
val lifeSpan: MutableStateFlow? = MutableStateFlow(30),
var timer: CountDownTimer?
)
In my repository class I get list…
Kratos
- 681
- 1
- 13
- 30
0
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1 answer
Kotlin Coroutines - Unit tests with SharedFlow falls when run together but pass when run individually
I am trying to write class which will get some current data every some time so it will transform one flow into another. I go stuck while writing tests for it.
When I run one test it passes but when I run all of them: testA always passes but testB or…
gabilcious
- 38
- 5
0
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1 answer
Retrigger collection from StateFlow/SharedFlow from Activity in Jetpack compose
Activity code which is collecting the flow as state and updating the UI based on the state emitted by the Flow.
setContent {
val viewModel: MainViewModel = viewModel()
val state: State = viewModel.flow.collectAsStateWithLifecycle(
…
Sumit Trehan
- 3,985
- 3
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- 42
0
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1 answer
How this change from runBlocking to sharedFlow work?
I would like to ask you why does it work?
Normally when I used collectLatest with flow my data wasn't collected on time and the return value was empty. I have to use async-await coroutines, but I have read it blocks main thread, so it is not…
chrisChris
- 89
- 7
0
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0 answers
Combine with sharedFlow skip values
I have filters which I change on other fragment when I navigate back it saves these filters. Now, the issue is shared flow from time to time is not triggered and not proper data is displayed.
in ViewModel
lateinit var archivedSettingsFlow:…
chrisChris
- 89
- 7
0
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1 answer
How to understand complicated sharedflow expression?
I would like to fully understand what happens here.
sharedFlow.debounce(250)
.onEach(::updateGroupingStrategy)
.shareIn(viewModelScope, SharingStarted.WhileSubscribed(5000L), replay = 1)
debounce
Returns a flow that mirrors…
chrisChris
- 89
- 7
0
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0 answers
I have a question about SharedFlow with the page lifecycle
Although SharedFlow is non-sticky, each result will only be processed once, but during the upload process, if you return to the desktop, in the absence of a receiving end,
SharedFlow will discard existing messages, instead of suspending events and…
花未开
- 159
- 1
- 6
0
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Disable/cancel StateFlow for unit test
In my ViewModel there's a StateFlow which seems to prevent my unit test from ever completing, i.e. the test "hangs". I'm fairly new to the Flow lib and not sure how to cancel/disable said StateFlow so I can run my test as normal.
I created a…
JakeP
- 1,736
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Migrating from livedata to kotlin flow
In the proccess of migration I found out some things that I would like to comment out with people who have good knowledge about this. To be honest, I am not master of flow, used livedata for long time, so now I would like to figure out as much as I…
Kratos
- 681
- 1
- 13
- 30
0
votes
1 answer
how to tee a Kotlin SharedFlow
I wrote a flow that emits integers, and two downstream flows that emit just odd or even numbers. I'm only getting values from the last-created SharedFlow:
b: 1
b: 3
b: 5
b: 7
...
Is there a better way to implement tee'ing a SharedFlow?
import…
Curtis
- 536
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- 10
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0 answers
MutableSharedFlow is being re collected again and again
I have the following ViewModel and Fragment -
class HeroesViewModel(private val heroesRepository: HeroesRepository) : ViewModel() {
private val internalUiState = MutableStateFlow(UiState.Initial)
val uiState =…
Alon Shlider
- 1,187
- 1
- 16
- 46
0
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1 answer
Why sharedFlow collect won't execute this line?
I define a sharedFlow in MainViewModel like
class MainViewModel : ViewModel{
val _sharedFlow: MutableSharedFlow()
val sharedFlow = _sharedFlow.asSharedFlow()
}
Then I have a activity
lifecycleScope.launch {
…
JLin
- 3
- 2
0
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1 answer
how to emit value from built flow object
My question is that how we can emit a value from a built flow object like this:
class Sample {
var flow: Flow
Mohammad Mirdar
- 56
- 1
- 11
0
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1 answer
Android LiveData advantage than other observable libraries
In 2022, What scenario can imagine LiveData is better than other observable libraries such as StateFlow, SharedFlow, Coroutine Channel and etc.
Kaaveh Mohamedi
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