kotlinlang #compose

@Composable
fun Element(state: ElementState, content: @Composable ElementScope.() -> Unit) { ... }

class ElementState {}

@Composable
fun rememberElementState(): ElementState { ... }

class ElementScope {}

I was wondering why it is preferred against the version in the thread? The guidelines do not mention it.

🇳🇴 1

Cicero

05/05/2021, 10:26 PM

So I’ve been doing some playing around with this grid and I wanted it to move around X and Y. To try to make this happen I draw gridSize+2 and I made the offset X and Y - 1 (so we have this extra 1 in every border -x/x/-y/y). Now when I’m animating I slide the offSet X or Y into the direction I want (minus or positive), after the animation of offset ends I update the logical position and then redraw the grid back to offset 0, whatever X or Y direction I moved. My issue is that I can’t get to draw my columns out of my screen bounds. Is this a limitation that I can get around?

robnik

05/06/2021, 2:57 AM

I updated the Kotlin plugin and now a project won't build. Is the plugin incompatible with Compose?

e: This version (1.0.0-beta06) of the Compose Compiler requires Kotlin version 1.4.32 but you appear to be using Kotlin version 1.5.0 which is not known to be compatible. Please fix your configuration (or
suppressKotlinVersionCompatibilityCheck
but don't say I didn't warn you!).`

🇳🇴 2

Tlaster

05/06/2021, 3:13 AM

It's been a while since the last paging-compose release, is there any plan to have an update?

Justin Yue

05/06/2021, 3:25 AM

hello, i'm a little bit late in upgrading to the latest android study canary, and now the ide is that there's unresolved references with functions in kotlin's standard library like absoluteValue(), roundToInt(), listOf() and so on. It doesn't seem to be affecting the compose project, but I was wondering if anybody has already resolved the issue already.

Gaurav Gangwar

05/06/2021, 6:18 AM

Hello everyone, what is a good way of handling click events in a Lazy Column consisting of multiple item types ? Should I pass a separate lambda for all of my different items or is there anything better that I can do ?

julioromano

05/06/2021, 6:49 AM

When loading images with Coil through Accompanist, what is the difference using Coil’s

crossfade

and/or Accompanist’s

fadeIn

Tlaster

05/06/2021, 8:28 AM

Does any have the issue

java.lang.RuntimeException: Canvas: trying to use a recycled bitmap android.graphics.Bitmap

after upgrade to beta06 with accompanist 0.9.0, full stacktrace in thread

adauguet

05/06/2021, 9:31 AM

How can I set a shadow/elevation on a GlideImage? The following is working as expected:

Surface(elevation = 5.dp, shape = CircleShape, modifier = Modifier.size(200.dp)) {}

But I do not see any shadow with this code:

Surface(elevation = 5.dp, shape = CircleShape, modifier = Modifier.size(200.dp)) {
    GlideImage(
        data = contact.avatarURL ?: "",
        contentDescription = "",
    )
}

What am I missing?

Piotr

05/06/2021, 9:36 AM

Hi, Did Someone notice issues on beta06 with Arrangement.spacedBy() inside box/dialog? Using this code: https://gist.github.com/piotrsedlak/9de5319f1748762b1ed2990fa07d858f between beta05 and beta06 produces different results, is it a bug or did something change that i didnt notice in release notes?

😒ame: 1

louiscad

05/06/2021, 12:17 PM

Am I the only one disliking how Composable functions autocompletion works? I don't like that it doesn't automatically show parameter hints, and I don't like the live template behavior. I wish it just wasn't custom.

➕ 10

Nthily

05/06/2021, 12:47 PM

Why does alpha not work when two parameters are written together?

André Thiele

05/06/2021, 12:57 PM

I am currently getting a "java.lang.IllegalStateException: Launcher has not been initialized". What am I doing wrong?

Colton Idle

05/06/2021, 1:11 PM

Feeling... not smart. I'm having a simple problem with centering text. Here is what it looks like. Code in thread.

louiscad

05/06/2021, 1:56 PM

Is it impossible to preview a custom view that embeds a

ComposeView

from Android Studio? It complains about missing

ViewTreeLifecycleOwner

, and

ViewTressSavedStateRegistryOwner

😕 Also, does it mean it's impossible to have a compose view outisde of an Activity? I'm thinking about the few

WindowManager

use cases.

Slackbot

05/06/2021, 1:58 PM

This message was deleted.

Slackbot

05/06/2021, 2:04 PM

This message was deleted.

Zhelyazko Atanasov

05/06/2021, 2:07 PM

It's not 100% related to Compose but still - probably a good place to ask. I started implementing our internal design system in Compose and I published it to Maven Local. Then I wanted to use it in another project, but I'm not able to call any "global" functions - e.g. I have a file called

OneButton

with a single method in it (no classes or objects):

@Composable
fun OneButton(
    modifier: Modifier = Modifier
...

If I try to call it from my other project, Android Studio does not recognize the function. Then I decided to experiment and created a dummy Kotlin class with a single

@Composable

method in it. Published the .aar to Maven Local and used it in the other project. I created an instance of the dummy class and successfully called the

@Composable

function. What am I missing - my setup is more or less the same as in Accompanist (I'm not using Metalava and/or API file), I'm using the same Gradle plugin for publishing the artefacts... Any idea what may be wrong?

✅ 3

:thread-please: 1

Geert

05/06/2021, 2:53 PM

Is there maybe someone who can help me with this issue? I implemented a BottomNavigationBar, but it crashes on start. It does not crash when I do comment the bottomBar line. https://github.com/geertberkers/JetpackComposeBottomNavigationCrash/issues/1

Archie

05/06/2021, 5:07 PM

Hi, Is there a way to add a Shape to a Scrollable Container so the shape would encompass all the children? I’d appreciate any help. Thanks in advance.

nglauber

05/06/2021, 7:16 PM

I just answered this question in StackOverflow… ~~Is there a better way? How about this error indication in Android Studio?~~ https://stackoverflow.com/questions/67423907/possible-to-use-layout-a-compose-view-in-and-activity-written-in-java

Mahmudul Hasan Shohag

05/06/2021, 10:55 PM

I want to create collapsible effect like Jetsnack details view (https://github.com/android/compose-samples/tree/main/Jetsnack#custom-layout) with

LazyColumn

. For

ScrollState

we can use the

scroll.value

to get the scroll position/offset. But with

LazyListState

, we only have

initialFirstVisibleItemScrollOffset

, which give offset for per item. So how can I create the same kind of collapsible effect with

LazyColumn

Justin Yue

05/07/2021, 12:07 AM

My navigation graph is a nested graph for an authentication flow. Once authenticated, I want to navigate to a screen with a bottom navigation bar, and my current implementation is to use a 2nd navigation controller for this bottom nav bar. Is it possible to do away with the 2nd navigation controller and use the 1st?

Adrian Tappe

05/07/2021, 9:11 AM

Having a

LazyColumn

within a

ComposeView

within… a `CoordinatorLayout`: The Behaviors (FAB moving out of sight while scrolling e.g.) of the

CoordinatorLayout

seem to not work. How can the scrolling be propagated?

Cicero

05/07/2021, 11:27 AM

Anyone having issues with Preview? I need to close and reopen my classes and I just realized I’m doing this very often. Rebuilding works 50/50

😒ame: 6

Marcin Środa

05/07/2021, 12:57 PM

How to test a LazyColumn items?

Title

Marcin Środa

05/07/2021, 12:57 PM

How to test a LazyColumn items?

The tree from testRule:

Printing with useUnmergedTree = 'true'
    Node #1 at (l=0.0, t=210.0, r=1080.0, b=762.0)px
     |-Node #2 at (l=32.0, t=273.0, r=1048.0, b=415.0)px
     | Actions = [OnClick]
     | MergeDescendants = 'true'
     |  |-Node #3 at (l=174.0, t=291.0, r=365.0, b=348.0)px
     |  | Text = 'Channel 1'
     |  | Actions = [GetTextLayoutResult]
     |  |-Node #5 at (l=174.0, t=348.0, r=387.0, b=397.0)px
     |    Text = 'Description 1'
     |    Actions = [GetTextLayoutResult]
     |-Node #7 at (l=32.0, t=415.0, r=1048.0, b=557.0)px
     | Actions = [OnClick]
     | MergeDescendants = 'true'
     |  |-Node #8 at (l=174.0, t=433.0, r=365.0, b=490.0)px
     |  | Text = 'Channel 2'
     |  | Actions = [GetTextLayoutResult]
     |  |-Node #10 at (l=174.0, t=490.0, r=387.0, b=539.0)px
     |    Text = 'Description 2'
     |    Actions = [GetTextLayoutResult]
     |-Node #12 at (l=32.0, t=557.0, r=1048.0, b=699.0)px
       Actions = [OnClick]
       MergeDescendants = 'true'
        |-Node #13 at (l=174.0, t=575.0, r=365.0, b=632.0)px
        | Text = 'Channel 3'
        | Actions = [GetTextLayoutResult]
        |-Node #15 at (l=174.0, t=632.0, r=387.0, b=681.0)px
          Text = 'Description 3'
          Actions = [GetTextLayoutResult]

composeTestRule.onNodeWithText("Channel 1").assertExists()

returns

Reason: Expected exactly '1' node but could not find any node that satisfies: (Text = 'Channel 1' (ignoreCase: true))

FIXED Did forget to use

useUnmergedTree = true

View count: 8