kotlinlang #compose-desktop

> Failed to notify project evaluation listener.
   > Could not create task ':android:compileDebugAndroidTestKotlin'.
      > Cannot invoke "String.trim()" because "in" is null
   > KotlinJvmAndroidCompilation with name 'debugAndroidTest' not found.

Interestingly it worked without a hitch on a desktop only project, but the gradle files look a bit different. Should I be able to use this version in a MPP project?

Quan Le

10/07/2022, 2:51 AM

Hello, I try to use WebView in my app. I follow this example https://stackoverflow.com/questions/67959032/how-to-use-webview-in-jetpack-compose-for-desktop-app. It runs fine when I hit play on IDE, but when I package to msi and install, the webview doesn’t work. Did any one face the same issue?

10/08/2022, 4:19 AM

I'm running the packageReleaseExe and packageReleaseMsi tasks with no errors, but theres no exe or msi file to be found in the build directory. Is it not possible to build them on linux?

altavir

10/09/2022, 7:54 AM

What is the best place to report bugs? Here is an obvious one. Without override it get guaranteed SO.

Abdelilah El Aissaoui

10/09/2022, 5:04 PM

I've been noticing big FPS drops when a complex list of items has the

clickable

modifier for each item of the list. Whenever I remove that modifier, it works just fine. Has someone faced a similar issue? 🤔 I'll try to create a sample to reproduce it

Lucas

10/10/2022, 4:56 PM

Are there any plans to support 32 bit jvm?

xxfast

10/11/2022, 12:22 AM

https://twitter.com/AndroidDev/status/1579496646341144576?t=e__ak_jUiRoVo__PVVcw3g&s=19 Does this mean we can start moving our `@Preview`s back to

commonMain

enighma

10/11/2022, 8:17 PM

What is the best source of how to see how the build files should be written? IntelliJ's wizard seems to create a project of an older flavor.

Arkadii Ivanov

10/11/2022, 10:16 PM

Version 1.2.0! https://github.com/JetBrains/compose-jb/releases/tag/v1.2.0

10/12/2022, 12:38 AM

I have this in my dependencies

@OptIn(ExperimentalComposeLibrary::class)
implementation(compose.material3)

It's wanting me to add

This annotation should be used with the compiler argument '-opt-in=kotlin.RequiresOptIn'

for @OptIn I tried this but it the warning is still there

tasks.withType<KotlinCompile> {
    kotlinOptions {
        freeCompilerArgs = freeCompilerArgs + "-opt-in=kotlin.RequiresOptIn"
    }
}

Yan Pujante

10/12/2022, 1:19 PM

Can somebody explain when/how compose desktop became compose multiplatform? Was there an announcement that I missed?

Arjan van Wieringen

10/12/2022, 6:25 PM

Hey everyone, I just wanted to show I was experimenting with Compose Desktop multiplatform (based on the experimental folder in de JB repo) and was quite amazed. Ofcourse I ran into a lot of weirdness, but nonetheless I was able to pull the following movie off quite fast. It is a common module which contains everything: logic, viewmodel and compose view. The platform specific modules only bootstrap my

MandelbrotViewer

composable. In the movie we have JVM, iOS iPad Simulator and JS. Quite the difference in platform! Biggest issue is that I got VM allocation errors when using

withContext(Dispatchers.Default)

on iOS targets so it is blocking the main thread. I also can't get it to work on Arm64 on Mac. But it's experimental. So... there's that. I really enjoyed this, and it was very very easy. I can't understate how awesome it would be to have a true multiplatform UI library in Kotlin. I'll post the code later on GitHub.

Lucas

10/12/2022, 9:08 PM

Question for everyone: What is your preferred architecture for compose multiplatform projects?

Sean Proctor

10/12/2022, 9:15 PM

Can anyone give some advice on using proguard? It seems to break sealed interfaces. I'm getting an error: ClassA cannot implement sealed interface InterfaceB. ClassA implements InterfaceA.

czuckie

10/12/2022, 11:44 PM

Has anyone got a compose desktop app running on a pine phone pro?

Lucas

10/13/2022, 1:15 AM

Asked in multiplatform but this channel is more active Is there any way to anotate a class in common module with java-only lib anotations? expected/actual didnt work because the anotation has enum inside and i couldnt get it to work

Stefan Oltmann

10/13/2022, 10:33 AM

I'm migrating to the new version of

LazyVerticalGrid

which has a

LazyGridState

instead of a

LazyListState

. I want to display a scrollbar. I used

VerticalScrollbar

together with the

LazyScrollbarAdapter

... This only works with

LazyListState

... is something similar available for

LazyGridState

? Someone mentioned https://github.com/Suwayomi/Tachidesk-JUI/blob/master/ui-core/src/desktopMain/kotlin/ca/gosyer/jui/uicore/components/DesktopScrollbar.kt#L105 , but it's broken for

GridCells.Adaptive

Edit: Okay, it's already known as https://github.com/JetBrains/compose-jb/issues/2029

Kirill Grouchnikov

10/13/2022, 2:14 PM

Happy to announce that

Aurora 1.2.0▾

has been released. A couple of new APIs (tabs and tab rows), and a bunch of fixes.

Arjan van Wieringen

10/13/2022, 2:27 PM

Here is the git repo for the Mandelbrot Composed Multiplatform super-experimental experiment from above: https://github.com/avwie/mandelbrot-compose-multiplatform

Kirill Grouchnikov

10/13/2022, 3:18 PM

MouseInfo.getPointerInfo().getLocation()

Casey Brooks

10/13/2022, 4:40 PM

Just in general, Compose doesn’t play the nicest with mutable classes, and undo/redo will be difficult to implement if you’re modifying those properties directly. It’s best to use all immutable models to make sure any changes get updated in the Compose UI correctly. There are basically 2 ways to implement undo/redo functionality: State-based, and command-based. This article does a decent job of explaining the these two concepts and showing code snippets in JavaScript. I actually just released an experimental feature for my Ballast MVI library today which adds state-based undo-redo functionality automatically in version 2.2.0. The MVI pattern gets you writing your UIs in a manner where you already have both your “commands” and “states” explicitly described and managed for you by the library, and this new feature plugs into that process to track the changes necessary for undo/redo. You can view the documentation here, play with an example, join us over at #ballast for help getting started using Ballast or learning how to use this new feature.

adte

10/14/2022, 4:28 PM

Is it a common practice in Compose to have State classes? Like Application/ApplicationState, Window/WindowState, Control/ControlState? And then, there's sort of like a state tree and a ui tree?

orangy

10/15/2022, 2:46 PM

Any idea on how to universally scale up/down the whole window content without adding

* scale

in every place? Like zooming in browser, so window size becomes virtually smaller when zooming in, and then all sizing/measures/font size are multiplied to become bigger and fit the whole space?

Mohamed Elfiky

10/17/2022, 7:27 PM

Is there a way to get position of nested child? I want to draw edges between nodes on different handlers when i use onGloballyPositioned or onPlace and state the edge moves after i drag the node.

spierce7

10/18/2022, 12:08 AM

Does anyone know how to diagnose performance problems on Compose Desktop? I’m getting poor performance in one of my composables. I re-wrote it and it got dramatically better. Is there a way for me to figure out where compose is spending its time? Profiling was pretty useless.

Adam Brown

10/18/2022, 1:38 AM

i havent touched my project in a bit, just tried to update and build, and gradle is failing to sync now on the compose desktop properties, was there a change in how those work?

val desktopMain by getting {
            dependencies {
                api(compose.preview) <-- This fails
                api(compose.desktop.currentOs)  <-- This fails
                api("org.jetbrains.kotlinx:kotlinx-serialization-core-jvm:$kotlinx_serialization_version")
            }
        }

e: \common\build.gradle.kts:93:21: Function invocation 'compose(...)' expected

This is with Compose Desktop

1.2.0-beta02

and IntelliJ 2022.2.3

David W

10/18/2022, 4:26 AM

My generated

<http://jars-config.pro|jars-config.pro>

is invalid, is there any way to handle that?

The same output jar [F:\<path>\tmp\main-release\proguard\gluegen-rt-natives-windows-amd64-1d9211c54ac0a72ba2b6397fc93c9894.jar] is specified twice.

And sure enough, the same

outjars

is added twice to that file. I took another look and it seems like this is happening for jars that are included both in remote dependencies as well as

fileTree

dependencies. So, maybe that generator is looks at the injars/outjars as a pair for comparison, rather than checking for duplicates of outjars on its own.

Richard Glen

10/18/2022, 12:56 PM

Is the background blur achievable? It would help a lot if there’s a sample project that does something similar. Thanks!

Dragos Rachieru

10/18/2022, 9:01 PM

Can I write plugins using compose? Like being able to add a jar to an app that will change/add screens. I'm not sure how to do this right now.

Thomas

10/18/2022, 10:35 PM

Could someone from the compose team please look into the following issue? https://github.com/JetBrains/compose-jb/issues/2329