Hi everyone! We are building a networking layer to be shared across Android and iOS and in the future Web. The issue I'm facing at the moment is the common.framework (Common is my shared module name) size is 12mb? but when it compiles the android aar file its ~200kb. We look to expose these SDK's to clients. Is it possible to reduce the size of the framework that has been generated?

Also how does your network stack differ from, say ktor, which already provides a large set of network functionality in common kotlin?

Hi, I’m trying to generate frameworks for my project but I’m not being to deploy because the output is incorrect Does someone know how can I configure the

xcode

block from the

kotlin("xcode-compat")

plugin in order to achieve that? For example, with this

xcode {
    setupFramework("KotlinNativeFramework")
}

a directory called KotlinNativeFramework will be created inside of the build folder, but the actual frameworks inside of this folder (

*.framework

,

*.framework.dSYM

) have a much longer name and also their inner definitions will be pointing to this other name. It looks like tha name come from the linkTask but I don’t know how to change the output definitions, does someone know?

Hi everyone , I'm developing an app for IOS in Kotlin-native in Appcode. I'm wondering if anyone else have come across the following issue in Appcode. The error (no signature found) comes up if I try to redeploy an app to my iPhone without changing the code. If I change something in the code it deploys fine.

Hi! Any idea how can I run ios tests in my common module with cocoapoads from xcode?

Any for improving the iOS linking stage of Kotlin/Native? For some reason this seems to be a very slow process - much slower than ObjC/Swift equivalent - is there a sound reason for this or it's just very unoptimised from the Kotlin/Native side?

I am having trouble calling certain iOS functions from Kotlin/Native How would I for example call this method? https://developer.apple.com/documentation/foundation/nsstring/1407654-write I have tried using variations like this, but it does not seem to compile no matter what I try:

val contents = "File contents"

val filename = "some.file"

val res = contents.writeToFile(filename, true, NSUTF8StringEncoding)

I have succeeded using the simpler overload without encoding end error, but the

NSError*/throws

is causing me problems. How can I supply/catch that parameter from Kotlin?

Hello! I have two questions on Cocoapods plugin: 1. Does the Cocoapods plugin handle remote repositories? Most of the examples I have found only show an integration where the iOS app is part of the K/N project 2. Is there a parameter to tell the plugin that the generated podspec should be at the root directory? For the moment, my multiplatform project is organized with a root project and a submodule (with a build.gradle file in each)

I have problems getting XCode to choose the correct platform (Amr64/X64) for my Kotlin Native library. Following some different guides, I have done this: 1. Added my framework as embedded library. Here I choose either the X64 or Arm64 "debugFramework" folder, since there is no "general" headers generated 2. Added two different framework search paths, one for "Any iOS Simulator" and one for "Any iOS SDK", pointing to X64 or Arm64 respectively It seems no matter what I do, it will build and launch using whatever architecture I set in #1, regardless if I run on the simulator or a real device, and ignore #2, so I need to re-add the entire framework in Xcode when switching between simulator and device. Suggestions?

Hello ! I'm trying to load an image from Assets.xcassets into UIImage

val image = UIImage("mypin")

The file mypin.png is copied into Assets.xcassets in Xcode . This doesn't work , it fails to load the image. Anyone that has any thoughts on how to do this correctly?

KotlinByteArray to/from NSData in iOS? I have been struggling for hours trying to make my MPP code with with iOS regarding to NSData, and no examples I have found seems to work. I have a Kotlin function that takes a ByteArray as input, and another producing a ByteArray as output. This works perfectly in Java, mapping to byte[], but I have no idea how in iOS I can convert it to/from NSData that can be used in Swift. Any ideas?

Any idea how I could work around the fact you can’t override

UIView.draw

?

Hi can’t get this multiplatform ios to run I heard people say run gradle wrapper but that doesn’t seem to help is there any other way I really wanna get this running already spend all weekend its kind of pointless to do Multiplatform mobile with only android

Also having trouble with the KaMP starter can’t get the kotlin plugin to work tried rolling back to 1.3.61 and nothing seems to work

Still no good way to convert a

NSError

into a

Throwable

?

hey, I’m curious if someone has solved the problem of publishing iOS frameworks as Maven artifacts (to Artifactory, for example). I know it’s not officially supported (yet?), are there good solutions out there? So far I’ve been able to find this: https://github.com/SalomonBrys/kotlin-ios-universal-framework. Related question: does anyone know why Kotlin’s CocoaPods plugin is hardcoded to use static frameworks only? (https://github.com/JetBrains/kotlin/blob/0fe5694cb761e9de55ea76062a258b99677adaea/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/native/tasks/CocoapodsTasks.kt#L75)

are these target platform/device enough for all of models ( > iphone 5s)?

Hello there! Did someone succeed to publish a Kotlin Native library on GitHub with the Cocoapods plugin?

Hello. I’m trying to prevent rotation of a specific uiviewcontroller and i’m not able to override

supportedInterfaceOrientations

Anyone know how to achieve this ?

Does anyone have a todo list multiplatform example or something similar that is on both android/ios?

Hey there, I’m using kotlin to create a function that returns a view, but I’m having issues finding documentation about creating elements using the UIKit, for example, I already have buttons and labels, but I have no idea on how to add an image.. someone can point me in the right direction?

Anyone has an example of a “page” being created with content (UIView, UIImageView, etc.) on Kotlin? My goal is to have a function that returns a complete page, but I’m having a hard time figuring out how to place everything correctly

Sorry for bothering everyone, does anyone have an example using a UIPickerView? Thank you in advance 🙂

I’m trying to subclass UITextField, but I get this error:

Unable to call non-designated initializer as super constructor

. The code I have is:

private class Select: UITextField {

    @OverrideInit
    constructor(): super()

    override fun caretRectForPosition(position: UITextPosition): CValue<CGRect> {
        return CGRectMake(x = 0.0, y = 0.0, width = 0.0, height = 0.0)
    }

    override fun selectionRectsForRange(range: UITextRange): List<*> {
        return listOf<Any?>(null)
    }

    override fun canPerformAction(action: COpaquePointer?, withSender: Any?): Boolean {
        return false
    }
}

Anyone know what should I do? I guess I could use

disableDesignatedInitializerChecks

but that doesn’t seem right

When implementing an ObcJ protocol, how can you work around conflicting overloads? For example, implementing

override fun locationManager(manager: CLLocationManager, didEnterRegion: CLRegion) 
override fun locationManager(manager: CLLocationManager, didExitRegion: CLRegion)
override fun locationManager(manager: CLLocationManager, didStartMonitoringForRegion: CLRegion)

Hello all, trying to create a UIView with rounded corners and shadows, after digging through some code online I ended up with something like this:

private fun generateViewWithShadow(): UIView {
        var generatedView = UIView().apply {
            translatesAutoresizingMaskIntoConstraints = false
            heightAnchor.constraintEqualToConstant(60.0).active = true
        }

        var size = CGSizeMake(20.0, 20.0)
        var offsetVal = CGSizeMake(2.0, 2.0)

        var layerPath = UIBezierPath.bezierPathWithRoundedRect(rect= generatedView.bounds, byRoundingCorners = UIRectCornerAllCorners, cornerRadii = size ).CGPath

        var shadowLayer = CAShapeLayer().apply {
            path = layerPath
            fillColor = UIColor.whiteColor.CGColor
            shadowColor = UIColor.blackColor.CGColor
            shadowPath = layerPath
            shadowOffset = offsetVal
            shadowOpacity = 1.0F
            shadowRadius = 5.0
        }

        generatedView.layer.addSublayer(shadowLayer)

        return generatedView

    }

Looking at some swift code, I guess that my translation to kotlin is correct, but I still dont get what it should output.. any ideas?

Hi, we are having issues with the latest Xcode 11.4 when switching targets between simulators and device. We use the approach described in https://play.kotlinlang.org/hands-on/Targeting%20iOS%20and%20Android%20with%20Kotlin%20Multiplatform/06_SettingUpKotlinFramework to load the framework for the corresponding architecture in build phase. But it looks like the latest Xcode validates target integrity before running build phases, so the only workaround is to clean the build folder manually whenever the build target is changed, which is annoying. Has anyone found a better solution?

Hi there! Do you have any advice how to debug Kotlin Native? For now i’m debugging my code from my Android app (so it’s jvm part only) and the only way to debug native part is to use print() statement and look to Xcode console. Is there any other way to debug native part?

currently, I'm trying to translate this code to kotlin:

public func isConnectedToNetwork() -> Bool {
    var zeroAddress = sockaddr_in()
    zeroAddress.sin_len = UInt8(MemoryLayout<sockaddr_in>.size)
    zeroAddress.sin_family = sa_family_t(AF_INET)

    guard let defaultRouteReachability = withUnsafePointer(to: &zeroAddress, {
        $0.withMemoryRebound(to: sockaddr.self, capacity: 1) {
            SCNetworkReachabilityCreateWithAddress(nil, $0)
        }
    }) else {
        return false
    }

    var flags: SCNetworkReachabilityFlags = []
    if !SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags) {
        return false
    }
    if flags.isEmpty {
        return false
    }

    let isReachable = flags.contains(.reachable)
    let needsConnection = flags.contains(.connectionRequired)

    return (isReachable && !needsConnection)
}

Hi there! I use kotlin.cocoapods plugin to import my shared code into my ios project (as described here https://github.com/JetBrains/kotlin-native/blob/master/COCOAPODS.md). My script_phases section in .podspec file:

spec.script_phases = [
    {
        :name => 'Build multiplatform',
        :execution_position => :before_compile,
        :shell_path => '/bin/sh',
        :script => <<-SCRIPT
            set -ev
            REPO_ROOT="$PODS_TARGET_SRCROOT"
            "$REPO_ROOT/../gradlew" -p "$REPO_ROOT" :multiplatform:syncFramework \
                -Pkotlin.native.cocoapods.target=$KOTLIN_TARGET \
                -Pkotlin.native.cocoapods.configuration=RELEASE \
                -Pkotlin.native.cocoapods.cflags="$OTHER_CFLAGS" \
                -Pkotlin.native.cocoapods.paths.headers="$HEADER_SEARCH_PATHS" \
                -Pkotlin.native.cocoapods.paths.frameworks="$FRAMEWORK_SEARCH_PATHS"
        SCRIPT
    }
]

When I build my ios project it runs

syncFramework

task and I don’t understand how syncFramework works. Here are few examples: 1. I add some

println("")

inside a SharedCode function and when I build ios project the

syncFramework

does nothing. (I don’t see my println at runtime) 2. I change some function name

fun test()

->

fun myTest()

then Xcode says

test()

func isn’t exist and if I change it to

myTest()

it compiles and crushes at runtime with

unrecognized selector sent to instance

For now the only way to rebuild all the project it to delete the build folder from SharedCode and run Xcode build again. Does it work as expected?