Hi guys! Has anyone performed database encryption with SQLDelight? Are there any links with good documentation?

I’m very lost. I’m trying to define a KMP module with gradle and I can’t seem to be able to. 🧵

I think something is messed up with kotlin std-jdk in my MP project, because in the code

toLowerCase()

should be marked deprecated (and I should have

lowerCase()

available both are not. I'm using

plugins {
    kotlin("multiplatform") version embeddedKotlinVersion // 1.6.21 as Gradle 7.5
}

Hi Guys! I was wondering if anyone here has advanced experience with Mapbox Android SDK. Just in case - my quesion is about implementing similar piechart thing in Android using Mapbox SDK like Mabox GL JS does here https://docs.mapbox.com/mapbox-gl-js/example/cluster-html/

Hi everyone, anybody here have experience with KMM in combination with the new Xcode Cloud CI? Seemed like a great (and easy to setup) way to build our iOS app with a KMM module. But I’m kind of stuck since I can’t get java installed on the CI.. Wondering if anyone got around this issue?

I'm generating some code via a task and I'd like to append this to the

build

task somehow I tried

build { dependsOn(generateCode) }

but it fails

> Task :transformCommonMainDependenciesMetadata

> Task :generateProjectStructureMetadata

> Task :compileCommonMainKotlinMetadata FAILED

I tried then

getByName("compileCommonMainKotlinMetadata") { dependsOn(generateCode) }

but

Task with name 'compileCommonMainKotlinMetadata' not found in root project 'glm'.

I have updated Kotlin version to 1.7.0 in my library, and when I publish it, everything works fine. However, using the library from another multi-platform project, I can’t access the common source set. If I downgrade to Kotlin 1.6.10, and publish it again (with a different version), I can access the common source set from the other project. Is there something has changed in 1.7.0 that I’m not aware of? Or is it somehow not related to the Kotlin version? More info in the thread.

Is there an easier way to target all platforms than this?

jvm()
    js(IR) {
        browser()
        nodejs()
    }
    androidNativeX64()
    androidNativeX86()
    androidNativeArm32()
    androidNativeArm64()
    ios()
    watchos()
    tvos()
    linuxX64()
    linuxArm64()
    linuxArm32Hfp()
    linuxMips32()
    linuxMipsel32()
    mingwX64()
    mingwX86()
    macosX64()
    macosArm64()
    wasm32()

i'm trying to implement the background worker in

iosMain

https://medium.com/mobil-dev/background-task-with-bgtaskscheduler-1d49e22b1519 I seem to be able to get the

BGTaskScheduler

fine but i cant import the

Operation

class needed to schedule the actual work. would it be named differently? or access the

operationQueue

.

override fun createBatchAndAppendBoxesToIt(
    localBatchId: String,
    batchTimestamp: Long,
    batchName: String,
    boxes: List<LocalBox>
) {
    val identifier = createUniqueWorkName(localBatchId)
    BGTaskScheduler.sharedScheduler.registerForTaskWithIdentifier(identifier, null) { task ->
        val request = BGAppRefreshTaskRequest(identifier)
        request.earliestBeginDate = null
        try {
            // what's this do? pointer for submitError? CPointer<ObjCObjectVar<NSError?>>?
            BGTaskScheduler.sharedScheduler.submitTaskRequest(request, null)
        } catch (e: Exception) {
            Logger.error(TAG, "Could not schedule app refresh", e)
        }
        val operation = CreateBatchWorker() // should inherit from Operation
        //task!!.expirationHandler = { operation.cancel() }
        //operation.completionBlock = { task.setTaskCompleted(!operation.isCancelled) }
        //operationQueue.addOperation(operation)

    }
}

Would it be better to make an interface and implement it in swift? not sure

as info for the MP Gradle plugin team:

The TestReport.destinationDir property has been deprecated. This is scheduled to be removed in Gradle 8.0. Please use the destinationDirectory property instead. See https://docs.gradle.org/7.5/dsl/org.gradle.api.tasks.testing.TestReport.html#org.gradle.api.tasks.testing.TestReport:destinationDir for more details.

The TestReport.reportOn(Object...) method has been deprecated. This is scheduled to be removed in Gradle 8.0. Please use the testResults method instead. See https://docs.gradle.org/7.5/dsl/org.gradle.api.tasks.testing.TestReport.html#org.gradle.api.tasks.testing.TestReport:testResults for more details.

The Report.enabled property has been deprecated. This is scheduled to be removed in Gradle 8.0. Please use the required property instead. See https://docs.gradle.org/7.5/dsl/org.gradle.api.reporting.Report.html#org.gradle.api.reporting.Report:enabled for more details.

Hi all, Anyone encountered this before? I'm using

kotlin-dsl

and the IDE seems to contradict itself when it (and the build) says that it cant this reference even when the source has it.

Unresolved reference: iosSimulatorArm64

I'm using AS Chipmunk with Kotlin 1.7.10, Gradle 7.4.2, AGP 7.2.1 on a M1 mac

It used to be the case that KMM classes and my shared framework would autocomplete nicely in Xcode. But recently this has stopped for me, which is most inconvenient. Does anyone have any insight as to what might cause this?

I would like to use a C library in some of my shared code. I have the binaries and headers, and currently use cinterop on iOS, Android NDK, macOS, and Linux. I would like to use the cocoapod of this library on iOS to make dependency management easier. Is there a way to make sure the cocoapod’s cinterop gets commonized with my manual def files?

Hi there, I am trying to adopt KMP to define a common schema. I want to use reflection to get a

Map<String, String>

representation of a class's property names/values on Android/iOS. In my commonMain, I define something like `expect fun getPropertyMap(object: BaseObject): Map<String, String>`Where I may pass in some subclass like

class Child : BaseObject()

I was able to get this to work on Android, by using reflection, but am struggling with the iOS implementation. I have tried using the Kotlin

platform.objc

package, but it does not seem to be able to get the property names I also tried writing objective-c code in Xcode against the generated xcframework, but it also returns empty property list. I was wondering if anyone had some suggestions?

hello guys, when using KMM, i am getting this error when running on IOS, what could be the issue

> Task :shared:linkPodDebugFrameworkIosX64 FAILED
e: Compilation failed: Could not initialize class kotlinx.cinterop.JvmCallbacksKt

 * Source files: 
 * Compiler version info: Konan: 1.7.0 / Kotlin: 1.7.20
 * Output kind: FRAMEWORK
e: java.lang.NoClassDefFoundError: Could not initialize class kotlinx.cinterop.JvmCallbacksKt

Is there support for having an intermediate source set for android and jvm? I remember there is some issue when it comes to android + jvm but I don't remember exactly what it is

Does anyone know if Qodana supports multiplatform projects?

I have created a Kotlin binding for some C library via the cinterop tool but I simply cannot figure out how to use this API from a Kotlin program. The problem is that the memory allocation is done on the C side and not on the Kotlin side like in all the examples. I hope somebody can give me a hint on how to set that up correctly. More Details in the tread!

Hey all. I'm having an issue trying to run my test cases in a KMP library project. Details are in the thread! TIA

Hi all, Do we have some way to apply encryption on realm multiplatform db in KMM in commonMain module instead of doing it with platform specific code in androidMain and iosMain modules respectively ? Because i can see Realm Multiplatform Kotlin SDK does not have any documentation related to Encryption but only Java Sdk(Android) and Swift sdk(iOS) have it.

Do

targets

need to be accessed lazily (i.e.

configureEach

) or is it ok to call

targets.withType<T>()

Can someone give me an idea how stable Realm is (across android and iOS specifically)? Looks like a lovely SDK looking at the docs but before committing to it in production I thought I'd ask for opinions?

❗Hi, everyone ! I am currently running a series of interviews with Kotlin Multiplatform Mobile users, that are using AppCode as a primary IDE for development. If you are willing to spend 30-40 mins on the interview and help us, please, write me in DM or react with K. No pre-requisitions needed ! Thank’s everyone in advance !

hey all, i've a library with common code (one annotation class and one fun depending on kotlinx-coroutines, no platform-specific code); i'd like to support android, jvm, js, ios targets. since android is a jvm-like target is it needed/ok/redundant to declare explicitly

android()

in

kotlin

block? this is like: https://youtrack.jetbrains.com/issue/KT-52666

Hello! is the task

podPublishReleaseXCFramework

from native.cocoapods plugin expected to generate a .dSYM? So far I see it when I run

assemble<lib>XCFramework

but not in that case

I have a multiplatform module with just jvmMain and jvmTest source sets. It contains a kapt / ksp annotation processor which generates code based on common source set. I use

tschuchortdev:kotlin-compile-testing

library to test the processor. It all works fine until I start to use

expect

keyword in my jvmTest tested source. It complains that

The feature "multi platform projects" is experimental and should be enabled explicitly

. Fail even if I add

kotlin.mpp.stability.nowarn=true

to

gradle.properties

and

gradle-wrapper.properties

. Any ideas what might be wrong or how can I structure my tests differently?

Anyone can help me for

actual

implementation in iOS

package utils

import platform.Foundation.StringStyle

internal actual fun Double.formatWithDecimalPlaces(places: Int): String {
    return String(format: "%.2f", this)
}

But it has several errors: e: …/shared/src/iosMain/kotlin/utils/DoubleExtensions.kt: (6, 25): Expecting ‘)’ e: …/shared/src/iosMain/kotlin/utils/DoubleExtensions.kt: (6, 27): Unexpected tokens (use ‘;’ to separate expressions on the same line) e: …/shared/src/iosMain/kotlin/utils/DoubleExtensions.kt: (3, 28): Unresolved reference: StringStyle e: …/shared/src/iosMain/kotlin/utils/DoubleExtensions.kt: (6, 12): Using ‘String(CharArray): String’ is an error. Use CharArray.concatToString() instead e: …/shared/src/iosMain/kotlin/utils/DoubleExtensions.kt: (6, 19): Unresolved reference: format

Is it possible for KSP based library to be multiplatform?

Hi, sorry if this was asked before but couldn't find anything useful so far. I'm starting with KMM and following official tutorial on kotlinlang page to create first cross-platform app. In general I got it working but there were some bumps along the road and one I can't resolve. I'm not able to run iOS build from Android Studio. It says

"Selected scheme "iosApp" does not support "iphonesimulator".

There is a ticket for the exact same issue but it's resolved as answered with link to SO solution which is not working in general. Some people say it worked for them some it didn't. I'm using apple silicon which I suspect is responsible for most of the issues while following the tutorial.

kdoctor

doesn't highlight anything specific to Android Studio there is only one failure related to

cocoapods-generate

which shouldn't be a problem and is most probably because brew install location on apple silicone. Anybody encountered this or have an ideas how to solve this? Btw running the app from xcode works so it's just the tooling (AS plugin?)

Hi, I’m trying to create a multiplatform library for both iOS and Android, and the approach we’ve taken is to delegate out some of the details to the host apps. We expect them to implement certain interfaces and provide concrete classes of this interface to the library. However we have run into an issue. Given the following kotlin interface

interface KeyValueStorage {
    @Throws(Throwable::class) fun get(key: String): String?
}

This generates the following in objective-c:

- (NSString * _Nullable)getKey:(NSString *)key error:(NSError * _Nullable * _Nullable)error __attribute__((swift_name("get(key:)")));

When you try to implement this in swift (as generated by xcode)

final class SampleStorage: KeyValueStorage {
    func get(key: String) throws -> String? { 
        return ""
    }
}

This function gives this compile error:

Throwing method cannot be an implementation of an @objc requirement because it returns a value of type 'String?'; return 'Void' or a type that bridges to an Objective-C class

Does anybody has any idea what the issue is, how to solve this, or have alternative suggestions?