All Questions
Tagged with android-jetpack-compose compose-recomposition
188
questions
-1
votes
2
answers
52
views
mutableStatelistof doesn't trigger a recomposition when items are added to it
I have this in my HomeViewModel
class HomeViewModel(
private val preferenceRepository: PreferenceRepository,
private val currencyApiService: CurrencyApiService,
private val mongoRepository:...
- 23.3k
0
votes
1
answer
64
views
What is the proper way of communicating between viewModel and UI composable to avoid concurrent change error?
In my project from time to time I have error "Unsupported concurrent change during composition" -> This is probably caused by updating a State object from different threads at the same ...
- 147
3
votes
2
answers
247
views
How to fix "Unsupported concurrent change during composition"?
Error:
Recomposer.applyAndCheck
java.lang.IllegalStateException - Unsupported concurrent change during composition. A state object was modified by composition as well as being modified outside ...
- 147
1
vote
1
answer
125
views
Compose function recomposes when it passes value of the state to another function
I don't seem to find an explanation for this simple case.
Something simple as a viewmodel holding counter flow:
class TestCounter : ViewModel() {
private val _counter = MutableStateFlow(0)
val ...
- 21
0
votes
2
answers
145
views
Optimizing LazyColumn Recomposition Jetpack Compose
I am developing an app using Jetpack Compose that organizes items into three lists ("List 1", "List 2", "List 3"), each represented by a sealed class. I am trying to ...
- 33
0
votes
1
answer
48
views
unexpected behaviour of flowrow in jetpackcompose
I have a screen in which users can see recommendations saved by them from different categories with filter buttons above implemented with the help of FlowRow:
@OptIn(ExperimentalLayoutApi::class)
@...
0
votes
0
answers
29
views
Remove unnecessary recomposition
I have Scaffold with Column of fields and AndroidView with big text field.
Then I write in AndroidView something - MainFields recomposing all times.
I think its because of scaffoldPadding and ...
- 625
0
votes
0
answers
29
views
Prevent Row from unnecessary recomposition in Jetpack
I have three Rows in Column.
Then I change focus all three rows try to recompose.
Then I click on second Row, it try to set focus on the last.
How to recompose only row, there focus is?
@Composable
...
- 625
1
vote
0
answers
72
views
Jetpack Compose Button recomposed unnecessary
I have just a simple application having two class MainActivity and MainViewModel. I am sharing the code for the reference:
class MainActivity : ComponentActivity() {
@OptIn(...
- 959
0
votes
0
answers
39
views
Scaffold with white theme applies over main layout in jetpack compose
Why I have invisible Scaffold over layouts?
I have scaffold with floatingActionButton, snackbarHost and bottomBar.
In the main layouts I have some fields with Column and element are AndroidView:
...
- 625
0
votes
0
answers
171
views
Lambda parameter causes recomposition
When passing lambda to button's onClick, it triggers recomposition every time parent is recomposed.
I somewhat understand why that happens, because for lambda is just object of a class and if it ...
- 71
0
votes
0
answers
101
views
Loading Native Ads Inside LazyColumn
This is the composable holding Lazycolumn and after every 5th item native ad has been visible but due to lazycolumn recomposition when I'm scrolling ads got disappeared and after coming back ads again ...
0
votes
0
answers
55
views
Managing complex state tree with Compose and LazyList
I want to rebuild a highly interactive RecyclerView based list with a Compose LazyList.
The list is divided into categories, and these categories represent required options for a single selection. ...
- 685
0
votes
0
answers
52
views
Why is TextAlign.Center and TextAlign.Ellipsis in compose shifting the text to the right on each composition?
Column {
var isNextVisible by remember {mutableStateOf(false) }
Row(
modifier = Modifier.fillMaxWidth(),
verticalAlignment = Alignment.CenterVertically
) {
...
- 410
0
votes
1
answer
248
views
Jetpack Compose: Surface makes state is persisting without remember
im currently experiencing with jetpack compose states.
Check out this composable:
@Composable
fun CounterWithoutRemember(reset: MutableState<Boolean>) {
val count = mutableStateOf(0)
...
- 129