Is there a channel for non-android compose discussion?

Anyone experiencing a

java.lang.IllegalArgumentException: Layer is redrawn for LayoutNode in state NeedsRelayout

when using

AnimatedVisibility

for items in a LazyColumn?

How do I draw the icon as is, in the top app bar's title? I tried using navigationIcon, changed content color, emphasis to no avail

how do you consume scroll events on the way down the composable hierarchy? If I add a

scrollable

modifier a parent composable, I never get the opportunity to consume scroll events before my children do. Basically i want to intercept the scroll gesture

What's the best way to pass modifier to the sub children of a composable? I'm passing

modifier: Modifier = Modifier

from the parent to the child but, want to allow some control (background colour for eg) of the subchildren

we just migrated from

zsoltk/compose-router

to

navigation-compose

and a few issues rose to the forefront: • when where there be support for animation transitions between screens? • is there anyway to create a nested graph? • has anyone noticed sluggish performance when navigating? tapping a

BottomNavigationItem

used to have a clean ripple effect when navigating, and now it's super choppy (even without any screen to screen transition)

I have a question about Stateless composables. https://developer.android.com/jetpack/compose/state#stateless-composables Suppose you have a tab under HomeScreen and a list under it. HomeScreen → Article Tab → Favorite Tab → About Tab ... If you make HomeScreen Stateless, you will need to take a lot of arguments. What do you think should be done in such a case? Is it better not to make Composable like HomeScreen Stateless?

/*
 * stateless
 */
fun HomeScreen(val currentTab, val articleList...., onFavorite:()->Unit) {
}

Hi，folks! If I want to know how the Composable function becomes the ui node and then the ui tree is formed, and how the modifier ultimately affects our Composable functions?Can I know by reading the source code of

Composer

or

LayoutNode

? Or what source code do I need to read to get these knowledges? I am very confused and I want to know the principle behind the implementation.

Is there a reason that modifiers use a fluent interface instead of a DSL? It seems non-idiomatic for Kotlin, so I'm curious what the design decisions were, or what advantages this approach has 🙂

Sounds like a bug

I was changing the color of a Text, but what is the difference between both color values?? It can be set by the Text, but also by TextStyle???

Text(
                color = Color.White,
                text = "Verwijder Alles",
                textAlign = TextAlign.Center,
                modifier = Modifier.padding(16.dp),
                style = TextStyle(
                    color = Color.White,
                    fontSize = TextUnit.Sp(20),
                    fontWeight = FontWeight.Bold
                ),
            )

Should the preview pane in AS show animations? It's just the

CircularProgressIndicator()

atm

Hi. how do i use jetpack composes setContent {} inside a fragment?

Hi, I'm trying to create a video clips feed with a LazyColumn and Exoplayer views in each cell but the scrolling is very slow and I can't find a way to play only one video at a time (basically i'm doing JetInstagram Reels but not fullscreen: https://github.com/vipulasri/JetInstagram/blob/master/app/src/main/java/com/vipulasri/jetinstagram/ui/components/VideoPlayer.kt) Has anyone tried this ? Do you have ideas how to improve it ?

What’s the best way to implement a view like grid recycler view? Any good examples?

I’m excited for the new

navigation-compose

library. But, the examples in the documentation all show the

navController

being passed down into the “Screen” Composables, and click handlers setup that call

navController.navigate()

. Without having tried it yet myself, this seems not great. Writing a Composable that requires a

navController

makes it less testable and less re-usable, no? Seems like it might be better to let the composables bubble up events and then handle them and do the navigation at the root level of the tree where the navController exists. But that too can get complicated because a “nav event” might need more than just a route to navigate to (for example, you might want to specify if it should pop the back stack, and how far to pop the back-stack, etc).

Is there something like weight sum for Row or Column?

How is the “Composer” object passed to

Composable

functions? I went through “Under the hood of Jetpack Compose” recently and I saw it mentions that calling context is getting passed to

Composable

functions. I thought it’s done similarly to

suspend

functions, so when I decompile

Composable

function I will see something similar to

Continuation

object, but nothing like that is there. I know Compose works also in the phase of code generation during compilation, so is it possible to see generated code?

For the love of god, I can't find anything on the web that's tell me how to build a simple dropdown menu with compose? Do you guys have any suggestions for that?

Why is the body content in scaffold drawn behind the bottom bar? And what do you do to keep the content from being covered?

Hello, I’m trying to migrate to jetpack compose alpha-04 and when I try to compile I get this error

java.lang.NoClassDefFoundError: Failed resolution of: Landroidx/compose/ui/platform/InspectableParameter;
        at androidx.compose.foundation.BackgroundKt.background-1xq40Q0(Unknown Source:0)

Is there a compose compatible image picker library out there? Something like this that doesn’t depend on an activity? https://github.com/esafirm/android-image-picker

Just started checking out compose again. Are fabs by default not supposed to have ripples? Do we need to provide modifiers ourselves? The examples output has it just dim on press

Hello Everyone, I'm trying to apply a

snapShot

on button click but I keep running into a

snapshotApplyConflictException

What's the workaround for the magical behaviour of Box inside a Row as mentioned in the source of BottomNavigationItem I'm almost done with the integration of Backdrop with Navigation rail and I want to arrange all the navigation items at the top. Currently the Navigation rail is comprised of Custom Layout in a Box in a Column where each box is one Navigation item.

How do you rotate an

Image

in compose?

Hello! The latest Jetpack Compose minor release, alpha07, is here! You can get it now from Google’s Maven Repository. Release notes are available at https://developer.android.com/jetpack/androidx/versions/all-channel. As always, feedback is welcome; please log issues at https://issuetracker.google.com/issues/new?component=612128. Please note that we will not have a release in 2 weeks due to the American Thanksgiving holiday but will have a release 1 week later.

Apparently it’s now possible to compile a jetpack compose project in version 4.1.1 of android studio without being enforced to use Android Studio 4.2

After updating to Alpha07:

java.lang.IllegalArgumentException: Invalid slot table detected