I'm planning on filing a bug suggesting that

PointerInputScope.awaitFirstDown

should have an inverse, but I wanted to check if anyone saw anything obvious I was missing first.

private suspend fun PointerInputScope.awaitChangedToUp(id: PointerId) {
    awaitPointerEventScope {
        do {
            val event = awaitPointerEvent().changes.fastFirstOrNull { it.id == id }
            event?.consumeAllChanges()
        } while (event?.changedToUp() != true)
    }
}

https://developer.android.com/jetpack/compose/state talks about observeAsState, is that outdated and is now collectAsState ?

I’m theming my app, but the status bar doesn’t follow the colors

Are there any examples of how to implement an auto-scrolling mechanism within a Modifier's

.scrollable()

, or else, y'know, anywhere? Looks like I would need a custom implementation of

ScrollableState

interface for the modifier

Hi Everyone! I hope you’re all doing great and being safe. I just pulled

beta01

and I am having troubles figuring out what happened to

SwipeableConstants.DefaultAnimationSpec

? I couldn’t find anything relevant in the release notes or maybe I overlooked it. Does anyone knows where to find it? previously it was in

material

artifact. Thanks in advance

I'm having a weird crash, an alert dialog with a textfield and some state to decide whether the alert is open, dismissing the dialog without editing anything in the textfield works ok, after I edit the textfield dismissing the dialog crashes the app

java.lang.ArrayIndexOutOfBoundsException: length=5120; index=-2
        at androidx.compose.runtime.SlotTableKt.groupSize(SlotTable.kt:2558)

Does anyone have clear guidance for

onActive

and

onDispose

? We went from clear semantic names to

DisposableEffect

and i have no idea what to pass in as a parameter..

I’ve noticed my LazyColumn loses scroll position when I go to another screen and come back (I believe in a previous version of Compose it worked with the same code). It is because when I come back to the screen the list is empty (and shortly after it gets loaded), so it overwrites the scroll position that was saved in LazyListState. My workaround is to not call LazyColumn if there are no items… Is there a better way of doing this? And is this the intended behaviour?

I am trying to add space between 2 columns (elements) in my

LazyVerticalGrid

. So far, no luck. contentpadding is used for padding around whole lazyGrid, not individual item. In

LazyColumn

, there is a parameter called verticalArrangement which can be used to add spacer between elements, but how can I do that for Grid?

I narrowed my issue down to what seems to be a bug in navigation-compose. I filed a bug: https://issuetracker.google.com/issues/181576281

We just released an update to Radiography (v2.3.0)– most notably, it now supports Compose Beta 1! Radiography can be helpful when you need to see a readable printout of your UI but don’t have access to something like Android Studio’s Layout Inspector or other interactive tools.

Does anyone know when Compose will be supported by a non-canary (beta or stable) version of Android Studio? The requirement to use the canary version makes it very difficult to adopt in a large project with multiple teams. It would be nice to be able to test it out in one module without forcing everyone to use AS canary.

In https://developer.android.com/jetpack/compose/interop#case-study-broadcastreceivers, the example shows tying a broadcast receiver to the lifecycle of a composable. However (if I understand it correctly), a composable follows the lifecycle of

onCreate

and

onDestroy

(and as long as it is in scope). Is there something I can do to tie it to

onStart

and

onStop

?

Hey guys, Does

Jetpack compose navigation

component do

animation

on

screen transition

?... Like Slide in left, slide out right?

I asked it yesterday but nobody's answering. When using dropdown inside a Box the popup starts with box parent but the end goes to end of the screen . I am using fillMaxWidth in Dropdown modifier. Is there any way to limit it's end also to its parent????

We don't need to mention useIR=true in build.gradle anymore, do we?

Has the default behaviors of ImeActions in Text worked for anyone? Seems it has never worked since compose-dev. Still not working in beta01

How to call

NavController

from

Activity.onNewIntent()

?

Hey guys, did someone manage to make Downloadable Fonts work for Compose?

Hey people, I have a question. How do you usually go through the process of "I want to do X" while working with Compose? So far when I want to do something, I've been trying to google for it, but the google results are almost always very bad. This is natural, with all the stackoverflow posts, blogs etc. covering how to do some stuff in the previous versions which are very often deprecated. I am sure this will get better as we have a more stable API now, but right now it's very challenging for me. For example now, I wanted to look into making a bottom sheet, but not one that expands fully like the one

BottomSheetScaffold

provides, just have it appear at let's say 30% of the screen and be able to swipe it down again. After trying to search for it, or even trying out some ideas myself I feel like I very often end up in dead-ends (and not just this bottom sheet idea, anything non-trivial I try to achieve). This is not something that I had experienced when working with non-compose Android before due to the massive amount of information that there is online. Any advice on how to approach this?

I'm super excited to announce my first plugin for Intellij Idea and Android Studio. It allows you easily wrap your Composable with Row, Column and etc. You can download it by link below https://plugins.jetbrains.com/plugin/16174-wrap-compose or from Plugins section in Android Studio or Intellij Idea Hope it will make your development easier and more enjoyable If you have any questions please leave it on twit below: https://twitter.com/a_rasul98/status/1366396862538928128 Have a great day!

Is there any way to Align Composables based on Text’s baseline?

Maybe it is already asked but I can't find an answer. It seems that

navigation-compose

has dependencies to non-compose Android libraries. Ideally a Compose navigation library should be agnostic of the underlying platform, right? Is there any alternative that doesn't depend on Android code to implement the navigation?

Hi Guys, how do you check whether NavController have something in the backstack?

Hey, I want to learn compose and I am reading documentation for example: https://developer.android.com/jetpack/compose/lists Looks nice but reading sample code I can't see method MessageRow or PhotoItem and so one.. Would like to see how code looks like for it aswell. Is there any place where I can find missing code?

Do you guys have any idea on how to intercept back press when user’s editing text and keyboard is being shown? Can’t find a way to intercept the back press, the keyboard just gets hidden.

OnBackPressedDispatcher

doesn’t seem to help

Hi Guys, I have problems with animation, some time ago I created kind of pager with custom transition, 2 cards are switched using changing alpha of backgrounds and content (quite complex) slide in/out (using absoluteOffset modificator), I created it using AnimatableFloat and everything was great 🙂 after upgrade from alpha11 to 12 some performance issues appeared, now on beta01 it is terrible and not working at all. I migrate it to Animatable and if I use card with image on backgrount and only single Text it works correctly, in case of complex card layout it freeze whole app. Does anyone have an idea why this happened and how to solve it?

Is there any way to add a

footer

to a

LazyColumn

so that if the items inside a

LazyColumn

doesn't consume all available space, the

footer

will be pinned at the bottom of the

LazyColumn

but if the items fill all the available space, the

footer

would act as a normal

LazyColumn

item?

My search skills are failing me. Does anyone have the link to the post here where someone built a custom tab indicator switcher animation. It was a circular outline of the selected item, and when you selected the next item, the circle opened up and transitioned to circle the new item?