HI everyone .. on android i have some performance ...
# compose-iosa
Angga Ardinata
09/13/2023, 6:34 AMHI everyone .. on android i have some performance issue with compose multiplatform ..
when I wrapped a fullsize LazyColumn with a box .. then add a button with an image on it as a sibling and on top of the LazyColumn .. the lazy column seems Laggy and stuttering .. i also test it on release apk and still having same issue
when i remove the Button it seems fine
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Ivan Matkov
09/13/2023, 6:42 AMJetBrains does not publish any Android artifact for Compose Multiplatform - it's just Google's Jetpack Compose. So, I'd suggest you to post this android-specific question to #compose channel that monitored by Google folks
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Angga Ardinata
09/13/2023, 6:45 AMeven when im using compose multiplatform ?
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Ivan Matkov
09/13/2023, 6:47 AMyes, on Android it's still original Jetpack Compose
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Cherrio LLC
09/13/2023, 6:53 AM@Ivan Matkov I think not. Icons and Text doesn’t show up if you don’t specify a color. It should be black at least
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Lukas Anda
09/13/2023, 6:57 AMThey will if you have set up the material theme correctly. Did you try the compose multiplatform starter?
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Ivan Matkov
09/13/2023, 7:02 AM@Cherrio LLC sorry I don't get how your message is related to this android performance problem
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Angga Ardinata
09/13/2023, 7:04 AM@Ivan Matkov do you want a sample code ?
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Cherrio LLC
09/13/2023, 7:05 AM@Ivan Matkov I’m just trying to say something is broken.
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Ivan Matkov
09/13/2023, 7:08 AMDo you observe some deference here between android only compose app and compose multiplatform app on android?
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Angga Ardinata
09/13/2023, 7:09 AM@Ivan Matkov wait im gonna try to build it on android only compose
Angga Ardinata
09/13/2023, 7:10 AMim just migrating from android only to compose
Angga Ardinata
09/13/2023, 7:41 AM@Ivan Matkov sorry for bothering you .. im so stupid at this .. the issue is im not saving the state of button visibility into a remember mutable state of .. and directly make a condition in AnimatedVisibility(isVisible = {condition}) .. now i move the state into remember
Copy code
val isTapToTopButtonVisible by remember(surveyListState.firstVisibleItemIndex > 0){
mutableStateOf(surveyListState.firstVisibleItemIndex > 0)
}i
Ivan Matkov
09/13/2023, 7:42 AMGlad that the issue is solved
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Angga Ardinata
09/13/2023, 8:12 AMthanks eveyone
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Joel Denke
09/13/2023, 11:13 AMYou want to use derivedStateOf for liststate otherwise observe and recompise all the time. Or snapshotState.
Also you have stickyHeader in Lazy column can use.
And remember using unique ids to each row if possible.
Joel Denke
09/13/2023, 11:15 AM@Angga Ardinata See https://developer.android.com/jetpack/compose/side-effects#correct-usage how
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Angga Ardinata
09/13/2023, 11:26 AMOkay ill try that .. thank you for suggesting that
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