Is there any way to override the

removeEldestEntry

of a

LinkedHashMap

?

Hi everyone, I have a question regarding Kotlin vs Objc/Swift static properties. Kotlin doesn’t have any explicit support of static functions. Instead, we use companion objects. Following example is often used in factory classes.

class MyClass {
  ...
  companion object {
    fun companionFun()
  }
}

When we generate ObjC code out of this example it creates one interface for

MyClass

and another one for

MyClass.Companion

. Then, in Swift we use it as

MyClass.companion.companionFun()

. The issue is

companion

nor

companionFun

aren’t static because

companion

is a singleton object. Is there a way how to generate Swift static functions for Kotlin functions without the need of second interface? I found one feature ticket which would potentially solve this issue but it is without any activity for a long time. https://youtrack.jetbrains.com/issue/KT-44862

Does running single KMM test in Android Studio Dolphin work for you? It used to work, Studio was creating ad hoc gradle run configuration. Now it creates JUnit configuration, but I cannot run them, because Run button is disabled and I cannot find any error that could give me a clue why it doesn’t work. This is driving me crazy 😤. TIA 🙏

I just migrated a KMM project using embedded framework for the shared iOS framework to use cocoapods to match new requirements in the project. I have the project building the shared module using cocoapods just fine when I run through XCode, but when I run on iOS through Android Studio using the KMM plugin, I get an error that /path/to/build/null.app is not found. I would assume it’s looking for $EXECUTABLE_NAME, but that seems to be set. What should I be looking at to fix this?

Hey, not sure if my request is suited for #compose or here so I just post it here: I’m currently writing a multiplatform application with a shared Compose UI for the Android and JVM platforms. I struggle with the

@Preview

annotation. Although I added the

compose.preview

dependency

val commonMain by getting {
	dependencies {
		implementation(compose.runtime)
		implementation(compose.foundation)
		implementation(compose.ui)
		implementation(compose.uiTooling)
		implementation(compose.preview)    // <--- see here
	}
}

the

androidx.compose.ui.tooling.preview.Preview

annotation is not found in the classpath of the code placed in

commonMain

. What am I doing wrong? JetBrains Compose

1.2.0-beta01

, Android Studio Electric Eel Beta 1

hi everyone, now I have some trouble on

multiplatform + springboot + react

. The application can’t find the javascript file. I package the

js

file into jar using:

tasks.getByName<BootJar>("bootJar") {
    val webpackTask = tasks.getByName<KotlinWebpack>("reactBrowserDevelopmentWebpack")
    dependsOn(webpackTask) // make sure JS gets compiled first
    println(webpackTask.destinationDirectory)
    println(webpackTask.outputFileName)
    from(File(webpackTask.destinationDirectory, webpackTask.outputFileName))
    archiveBaseName.set("${project.name}-with-dependencies")
}

and the jar actually has the

js

file. But when i start the springboot application and visit the index page, it report not found error.

@GetMapping("/")
    @ResponseBody
    fun index() = createHTML().html {
        head {
            title("Hello,Kevin")
        }
        body {
            div {
                id = "root"
            }
            script(src = "kotlin-fullstack-v2.js"){}
        }
    }

Is there any fault in my code?

Is there any KMM support for NFCs? Some libraries or projects?

👋 Hello, team! What would be the recommended approach to set up the KMM project and repo? Is it better to have iOS and Android apps in the same repo along with the shared module or is it better to separate them out? wanted to check the experience so far from the community with different approaches. Curious to hear some great use-cases!

I have an issue with moko-resources, but didnt get any update from maintainers for some time. Maybe some of you know how to fix it or where to look for working example so I can check the setup: https://github.com/icerockdev/moko-resources/issues/386

Heya folks, I'm working in Compose Multiplatform (with Compose 1.1.1) and I'm seeking a cross-platform (Android + Desktop) way to capture a given Composable already rendered to the screen in an

ImageBitmap

. I'm aware of

ImageComposeScene

in Compose Desktop and the various Android

View

mechanisms that uses the the backing canvas. Is there anything cross-platform?

Hi, I'm having trouble with properties in

expect value

classes. I'm trying to create a multiplatform

Color

class, backed by Compose's Color class in the jvm target.

// android module
actual typealias Color = androidx.compose.ui.graphics.Color

Compose

Color

class contains getter for color components.

// Compose's Color class
@kotlin.jvm.JvmInline
value class Color(val value: ULong) {
    
    val red: Float
        get() {
           ...
        }
}

I would like to put these getters into my expected

Color

class and can't seem to find the correct syntax that would allow me to do it (see the attached image).

Anyone seen this error before:

Reason: AMDeviceSecureInstallApplicationBundle failed with err = -402620375(The code signature version is no longer supported.)

I'm trying to enable context receivers in a multiplatform project. It works for the JVM module if I do

kotlinOptions.freeCompilerArgs += listOf("-Xcontext-receivers")

in the JVM compilation. But I don't know how to do it for the common module, since it does not seem to have a compilation. The IDE keeps reporting "The feature "context receivers" is experimental and should be enabled explicitly" in common code.

If I want to add a Swift package or XCFramework as a dependency into a native source set, what are my options? I imagine I need to generate

.def

file and link binaries or something, is there Gradle plugin or examples on how to do that? (relatively new to KMM as well as Native ecosystem)

My C knowledge is severely limited so this question might be a bit dumb but.... Is it possible to compile a KMM module to a single C artifact? Right now I build an XCFramework and .aar file but I was wondering if it's possible to output a single C library which then could be invoked through ffi (dart). Right now my project uses methodchannels but that has (de)serialisation overhead so using ffi would be more performant. So far all I can find is using C in KMM but I actually would want it the other way around including platform specific code.

👋 Hello, team! Let me introduce WorldWind Kotlin - the first multi-platform planetary 3D globe library for JS, Android and JVM

Hi All, When I try this tutorial - https://kotlinlang.org/docs/multiplatform-mobile-upgrade-app.html i get this crash on iOS simulator. See thread

Hello folks, i want to ask something in my kmm project i have this line of code

class TestRepo {
    suspend fun test(): Int {
        delay(5000)
        return 10
    }
}

and i'm trying to use test method in my ios application.

class ContentViewModel : ObservableObject {
   
  @Published var training: Training_? = nil
  @Published var k: String? = nil
  @Published var isLoading = false
   
  func fetchData() {
    self.isLoading = true
     
    TestRepo().test { vl, err in
      self.isLoading = false
      self.training = Training_.companion.doInit()
    }
  }
   
}

but when i try app in mobile phone i get these error on the xcode. i fix this issue with using DispatchQueue.main.async, is there any other way to fix this issue without using DispatchQueue ?

Wondering if anyone uses AppCode for Kotlin Multiplatform Mobile, what’s the experience like? Getting some IDE errors in the Android module, and I am just evaluating if it is going to be worth it to try resolving the errors.

Hi all I’m having some issues running iOS app on a real device using XCode 14.0.1 and keep getting this error

ld: '/shared/build/cocoapods/synthetic/IOS/build/Release-iphoneos/FirebaseCrashlytics/FirebaseCrashlytics.framework/FirebaseCrashlytics' does not contain bitcode. You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE), obtain an updated library from the vendor, or disable bitcode for this target. file '/shared/build/cocoapods/synthetic/IOS/build/Release-iphoneos/FirebaseCrashlytics/FirebaseCrashlytics.framework/FirebaseCrashlytics' for architecture arm64

Has anyone seen this issue or know a workaround?

How do I add Android support to my multiplatform project? I'm developing a library

hi, I'm trying to set up a multiplatform mobile project, is there a plugin that fixes iOS platform imports? I'm developing in Linux

Are custom equals/hashCode implemented in shared code in data classes carried over when using them in iOS project?

This is probably an edge case but maybe there's something easy to fix this. I'm using a KMP library as a composite build inside a pure Android application. Android Studio (Flamingo) is having issues resolving dependencies between modules inside that library. Everything works at compile time and opening the library in AS directly works correctly too. I have no idea where to start looking at since there's no errors at compile time and it's IDE issue only.

Hello, I tried to search this channel but I cannot find. I am looking for a working example of multiplatform library with iOS and Android targets? Sorry if this is often repeated question.

In which plugin is the

packForXcode

/`buildForXcode` task implemented - has it been deprecated?

How can I add a target for jvm on windows and one for linux that both use the common code?

I'm looking for a resource which explains how I can reference JavaScript from a Kotlin/JS target inside of a Kotlin/JVM target. For example, I have a Ktor server in Kotlin/JVM and I want to serve scripts like this:

routing {
    static("scripts") {
        ... // Serve JavaScript files from this endpoint
    }
}

But instead of just writing JavaScript, I'd prefer to write Kotlin which is then compiled to JavaScript, and serve those generated files. I found the full-stack tutorial in the docs, but the server is written in JavaScript and serves a full React application. I am serving a mostly-static webapp with a little bit of JavaScript.

does this step mentioned in the tutorial not happen anymore since time of writing? https://play.kotlinlang.org/hands-on/Networking%20and%20Data%20Storage%20with%20Kotlin[…]om%20Mobile/05_Configuring_SQLDelight_an_implementing_cache

When the project is compiled, the generated Kotlin code will be stored in the

/shared/build/generated/sqldelight

directory. The generator will create an interface with the named

AppDatabase

, as we specified in

build.gradle.kts

this is right after implementing

AppDatabase.sq

with SQLDelight

Do platforms besides JVM currently use the K2 Compiler?