Hello KMM community 👋 I was exploring KMM for a project that will be Android/iOS/Desktop/(and maybe web) and I would like to understand if it’s possible to have multiple feature modules instead of a single one. Any recommended reading?

I added a default parameter to my method signature and the iOS side does not compile - I take it its not supported?

@Throws(Throwable::class)
    suspend fun getConfig(jwt: String? = null): String {

Any work arounds?

Can anyone guide me on how DI should be handled in KMM projects? In the shared module, I’ve created my usecase that is dependent on a repository object (also repository is dependent on other objects). I use Koin in android and shared module and everything works well. But in iOS I don’t have any idea how to inject the repository into the usecase.

Hey folks! Kotlin team would like to learn more about iOS developers experience with Kotlin Multiplatform. And we are looking for people to talk to 🙂 If you are a Kotlin Multiplatform developer with iOS background yourself, or if you have an iOS developer colleague who would not mind talking to me - please, put ➕ to this message and I’ll contact you. Thanks and have a fun Kotlin! :kotlin-flag:

Hey 👋 I’m trying to build just the simple Hello World project generated by the KMM plugin in Android Studio, but I’m using the Cocoapods plugin for the first time and struggling to get the iOS project building. Within

shared/build/bin

i see that

shared.framework

seems to contain all the classes/methods I would expect But within

shared/build/cocoapods

the

shared.framework/headers

directory only contains

placeholder.h

XCode seems to recognize the shared framework alright (no warnings on the import) but it fails to resolve any of the classes within the framework Is there some task that needs running, or other automagical step, that I’m missing to link/package what’s in

build/bin

to the cocoapod output?

I’m building on top of the KMM template project. I need to save some data in Shared Preferences. How does my actual method access the Context object in the Platform class?

This message was deleted.

In a bit of a Multiplatform design quandary. I am maintaining a Kotlin Native library that currently supports two Linux targets (linuxX64 & linuxArm32Hfp). The maintained library uses a C library as a base (dependency), however there are some parts of the dependency which are only applicable to some Unix based targets (eg Linux). Initially I was looking at having the Unix bits shared in the common module, however that would mean it would need to be available for all platform modules which won't work if a new platform module is added that isn't Unix based. Kotlin 1.5.20 will have the new platform code sharing feature however that would only cover a single platform. Is there a way cover the code sharing for Unix based targets scenario?

Hello, Is it possible to have a KMM project nested in another one? Like create a KMM library, and the project includes a test app build with KMM as well.

Hey folks, another question for you all - I have a class file in both `iosX64Main`/`iosArm64Main` directories that I need to access directly from a

.swift

file. When I had this class file inside

iosMain

I could successfully call the class without any issues. I recently had to move this file into `iosX64Main`/`iosArm64Main` to access some external library that was added, but I can no longer call this class from the

.swift

file. Any suggestions?

Hey 👋 . Does someone share viewmodel for mobile and web/desktop, what’s the best architecture to try and are there some examples to learn from? I already saw D-KMP, but want to check more solutions, maybe you already have some. Thanks!

Hi all, Wondering if anyone has experimented around what the size impact is if using KMM instead of native platform for doing the same work? I tried, but not sure if I'm measuring it right on iOS.. To measure it, I created simple Hello World apps using XCode and AndroidStudio. The native iOS app (created by default in XCode) seems to be ~450 KB while the one created for iOS using KMM in AndroidStudio seems to be ~2.5 MB. This difference seems HUGE! And I feel I might be doing something wrong in measuring the sizes as I'm not from iOS background. Here's what I'm doing - For the app created in XCode, I created an Archive of it, and then zipped the archive (followed one of the SO posts). For the one created through KMM in AndroidStudio, I'm looking at the size of file called 'iosApp' in build->ios->Debug-iphonesimulator->iosApp. I did similar test for Android, where sizes are comparable. Can someone share if I'm measuring the iOS size wrongly? Or what your observations of size impacts of using KMM have been?

Does anyone have recommendations (pref existing ones) for gradle plugins that turn a directory of files (text files in my case) into a .kt file with string vals holding the contents of the files?

Heyy I am trying to make an API call using ktor using the native engines, on ios I am getting an TLS sessions are not supported on Native platform error can anyone help me find a solution please? I am using ktor 1.6.0

Hi, I’m seeing an error when i run :

mutation attempt of frozen kotlin.collections.HashMap@2be0d88

I’ve tried the fix here : https://github.com/Kotlin/kotlinx.serialization/issues/1450 but it still fails

https://blog.jetbrains.com/kotlin/2021/06/kmm-for-appcode/ Looks pretty cool. I don't do iOS development so I don't know what certain features actually mean to me as a KMM dev... like

To build the iOS part, AppCode generates a temporary Xcode project and invokes the Xcode build system, so you can be sure that our Gradle project model will work the same as a regular Xcode project does.

Can anyone shed light on this? I'm using kmm now and doesn't it always generate an xcode project in the begining which is what allows us to open up the project in xcode?

Hello... i'm very new to multiplatform, I've tried to copy PeopleInSpace (from @John O'Reilly) here: https://github.com/alorma/Irc-Compose, but i'm receiving some errors 🧵

Hi guys. Does anyone know a DB (SQL\NO-SQL) library for multiplatform that supports iOS, Android & linux? I know that SQLDelight doesn’t support linux at the moment. It also looks like Realm (No-SQL) doesn’t support it either. Same goes for Kodein-DB which is also in Beta… Frustrating… Edit: I encountered this site which states that sqldelight supports linux as well, has anyone tried to integrate this on linux?

Hi. When I’m building my project using cocoapods, it takes a really long time on my first build. Specifically the

podBuild<Library>Iphoneos

and ``podBuild<Library>Iphonesimulator` tasks. They run up to 20 mins when I invalidate caches on my IDE… Does anyone have an idea on why this is happening? Thanks!

hey folks. has anyone else run into this error when trying to validate an iOS build with appstoreconnect? I wasn't having this issue before adding cocoapods to my kmm project.

So apparently, I can't anymore use

var

in an object.. What can I do about it? (language version 1.5.10 and only in within the multiplatform module)

How is the status om running KMM on iOS simulator on M1 Mac? I create new project using latest version. Can run on device but not on simulator.

ld: warning: ignoring file /Users/xxxx/project/android/yyyy/shared/build/cocoapods/framework/shared.framework/shared, building for iOS Simulator-arm64 but attempting to link with file built for iOS Simulator-x86_64

Undefined symbols for architecture arm64:  "_OBJC_CLASS_$_SharedGreeting", referenced from:    objc-class-ref in ContentView.o ld: symbol(s) not found for architecture arm64

Getting some errors with KMM plugin in AppCode, what is the ideal version to try for those who got it working? Also I seem to be unable to open an issue for this on YouTrack...

If I have a library that is written entirely in common code, and I want to consume it from Android and JVM, do I need both targets, or

jvm

would be enough?

What is the best URL/Uri class (or library) to use for KMP common?

There's some way to export comments from shared module to iOS module (objc headers) ? I mean:

/ * 
* It does something
* /
fun doSomething() { ... }

In iOS when I type doSomething it's possible to make that comment visible there?

Did anybody check AppCode+KMM plugin? Quick look shows me that my scripts and sources from buildSrc folder not recognized by appcode+kmm-plugin. explanation: i created empty kmm project with kmm-plugin from appcode and starts to modify my current work project gradle scripts (in androidApp module) the same way as in new project. When i finally changed gradle script structure in my work project build starts fail with errors (

unresolved reference

from buildSrc sources). I miss something or AppCode doesn’t recognize buildSrc sources?

Hello! In result from my KMM experiments with @Charles Prado, this is my (our) last post. Hope you find it useful 🙂 https://guidelgado.medium.com/kotlin-multiplatform-mobile-solving-network-responses-with-teamwork-c342762d9401

I am having trouble with the kotlin multiplatform project templates, would you guys recommend the github one or android studio plugin?