I know it's running in JVM, so I loosely - perhaps wrongly - refer to that runtime 'platform native' (rather than plain 'native'), because the layer of abstraction is not so tall as web/Electron.

Compose-jb 1.0.0 requires kotlin 1.5.31 but I want to use kotlin 1.6.0. Can I somehow make it working together?

e: This version (1.1.0-beta01) of the Compose Compiler requires Kotlin version 1.5.31 but you appear to be using Kotlin version 1.6.0 which is not known to be compatible. Please fix your configuration (or

suppressKotlinVersionCompatibilityCheck

but don't say I didn't warn you!).

PS compose-android 1.1.0-beta04 works with 1.6.0

I want to have a OutlinedTextField with helper text (See material.io ) but I don't see the option to pass the helper text. Anyone can point out how to achieve it.

Doe the splitpane component work in 1.0.0? I'm getting an error about multiple measures and an NPE trying to use it.

Thank you! That has worked perfectly.

on my

BasicTextField

I want to trigger some stuff on pressing Ctrl-Space:

modifier.onPreviewKeyEvent {
   val awtKeyEvent = it.nativeKeyEvent as java.awt.event.KeyEvent
   println(it)
   println(awtKeyEvent)
   ...

on pressing Ctrl-Space the KeyEvents for the Space char never come along, only for the Ctrl key ... but not the space key:

KeyEvent(nativeKeyEvent=java.awt.event.KeyEvent[KEY_PRESSED,keyCode=17,keyText=⌃,keyChar=Undefined keyChar,modifiers=⌃,extModifiers=⌃,keyLocation=KEY_LOCATION_LEFT,rawCode=0,primaryLevelUnicode=0,scancode=0,extendedKeyCode=0x11] on canvas0)
java.awt.event.KeyEvent[KEY_PRESSED,keyCode=17,keyText=⌃,keyChar=Undefined keyChar,modifiers=⌃,extModifiers=⌃,keyLocation=KEY_LOCATION_LEFT,rawCode=0,primaryLevelUnicode=0,scancode=0,extendedKeyCode=0x11] on canvas0
KeyEvent(nativeKeyEvent=java.awt.event.KeyEvent[KEY_RELEASED,keyCode=17,keyText=⌃,keyChar=Undefined keyChar,keyLocation=KEY_LOCATION_LEFT,rawCode=0,primaryLevelUnicode=0,scancode=0,extendedKeyCode=0x11] on canvas0)
java.awt.event.KeyEvent[KEY_RELEASED,keyCode=17,keyText=⌃,keyChar=Undefined keyChar,keyLocation=KEY_LOCATION_LEFT,rawCode=0,primaryLevelUnicode=0,scancode=0,extendedKeyCode=0x11] on canvas0

compared to pressing Alt-Space where also Key Events for the space char DO come along. e.g.:

KeyEvent(nativeKeyEvent=java.awt.event.KeyEvent[KEY_PRESSED,keyCode=32,keyText=␣,keyChar=' ',modifiers=⌥,extModifiers=⌥,keyLocation=KEY_LOCATION_STANDARD,rawCode=0,primaryLevelUnicode=0,scancode=0,extendedKeyCode=0x0] on canvas0)
java.awt.event.KeyEvent[KEY_PRESSED,keyCode=32,keyText=␣,keyChar=' ',modifiers=⌥,extModifiers=⌥,keyLocation=KEY_LOCATION_STANDARD,rawCode=0,primaryLevelUnicode=0,scancode=0,extendedKeyCode=0x0] on canvas0
KeyEvent(nativeKeyEvent=java.awt.event.KeyEvent[KEY_TYPED,keyCode=0,keyText=Unknown keyCode: 0x0,keyChar=' ',modifiers=⌥,extModifiers=⌥,keyLocation=KEY_LOCATION_UNKNOWN,rawCode=0,primaryLevelUnicode=0,scancode=0,extendedKeyCode=0x0] on canvas0)

Why Ctrl-Space events for the Space key do not come along, but Alt-Space space key does??

Hello

im trying to do something that i feel should be simple but google keeps pointing me to android apis

Currently, I'm doing this to fetch items when list reaches a specific index (I don't know if the naming is correct)

@NonRestartableComposable
@Composable
inline fun <T> PagingEffect(
    iterable: Iterable<T>,
    currentIndex: Int,
    crossinline block: (T) -> Unit,
) {
    SideEffect {
        iterable.runOnIndex(currentIndex, block)
    }
}

inline fun <T> Iterable<T>.runOnIndex(currentIndex: Int, block: (T) -> Unit) {
    withIndex().last().apply {
        if (index == currentIndex)
            block(value)
    }
}

And using it like this:

LazyColumn {
    val list = listOf<Item>()
    itemsIndexed(list) { index, item ->
        PagingEffect(list, index) {
            // Request more items
        }
    }
}

Is there a better way?

@alexey.tsvetkov I’d love to see a roadmap of planned features. It feels like there are a few pieces missing around shipping a production application, and it’s helpful to know what’s coming so that people don’t waste time building it, or figuring it out for themselves. i.e. I’d love to see an auto-update feature where we can compile an update bundle alongside our DMG / MSI. • That way people don’t have to download the entire JVM for every release. • More importantly the user doesn’t have to drag files around or do anything to update.

Would be nice if Compose Desktop had this table with addiction of the most close Jetpack Compose version.

Is there any place to follow the progress of Material 3 KMP?

Is there a way to set a custom window when the app crashes?

Sqldelight creates a new database everytime I restart the program

Not by posting the same thing in multiple channels

sorry!

Hi, how can I show a map of strings with every keys & values modifiable by user, and like show an error when the user enters a key name that already exists (but don't delete the other key nor cancel the input, just show an error until the user corrects it) ?

I made this issue comparing the memory usage of JB compose with other frameworks: https://github.com/JetBrains/compose-jb/issues/1632#issue-1087342354

Have there been any plans to reduce the memory usage of JB compose on the desktop?

From my basic profiling, it seems the vast majority of the memory is coming from outside the java heap. It also appears that it is not being allocated with

malloc

(since valgrind can't trace it either).

Is there a way to show layout bounds - like in android, but for compose desktop?

Playing with Skia shader gradients

@olonho Basically I'm talking about any way that I can plug into some view (can be canvas) so that custom renderer(opengl/vulkan/directx) can draw into it. Android has such a thing, compose doesn't. In simulations where there are millions of particles, you may need to show them as a whole, because particles can be semi-transparent and pass through each other. No sorting is involved since often it is easier to display millions of objects by instancing than to sort them.

Closing out 2021 with another post on using Skia shaders in Compose Desktop, this time about more fine-grained control over gradients. See https://www.pushing-pixels.org/2021/12/29/compose-desktop-gradients-and-skia-shaders.html for more.

I've made some comments on optimizing memory footprint here https://git.io/Jy9uN

In my tests, it appears that thread stack space uses more memory than the heap and metaspace combined.

Hijacking the thread a little bit to ask: is anyone who has any sort of WebView in a Desktop app using Kotlin Multiplatform (ideally with Android)? I'm switching an app from JavaFX (TornadoFX) to Compose and introducing an Android version, but I need some sort of web view. For Android I'd obviously need a different implementation to desktop, and I'm really struggling to find any examples of how to do this. Do I just need two completely different UIs?

Hey, I'm working on a small project that uses compose to create UI within a game (JVM). I was wondering if there's a way I could reuse the code from the

foundation-layout

module without having to depend on all the UI code that uses Skia (or deal with internal classes.) Really I just want a way to provide a custom canvas and have nodes that render to that canvas with the existing layout system. Are there perhaps other projects I could look at?

(How) can I change the color of the menu bar or the items in it?