kotlinlang #ios

So I was able to sort it out, there was a run script phase on the xcode project that was causing the problem, after removing it I was able to compile the iOS project and to use AFNetworking from Swift classes. However when I import AFNetworking in a kotlin class

import cocoapods.AFNetworking

the compiler marks AFNetworking as an unresolved reference, what am I missing?

aleksey.tomin

12/05/2020, 7:23 AM

I’ve writen kotlin library with ktor-client inside. It works fine in macOS/windows (curl-client), Android (OkHttp). But on iOS (

io.ktor.client.engine.ios.Ios

) I have a lot of “timeout error”. ktor-client works in

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Worker.start(name = "actions").execute(TransferMode.SAFE, { ... }) {
            val ctx = newSingleThreadContext("actions")
            while (true) {
                runBlocking(ctx) {
                    performKtorRequests()
                    delay(Checker.WAIT_INTERVAL)
                }
            }
        }

I try to use kotlin 1.4.10 + ktor 1.4.2 + coroutinues 1.3.9-native-mt-2 and kotlin 1.4.20 + ktor 1.4.3 + coroutinues 1.4.2-native-mt What I do wrong? How can I found a problem?

Amritansh

12/08/2020, 4:07 PM

I am trying to access connection type(cellular or wifi), carrier name and device model using kotlin multiplatform on iOS. Any suggestions on how to approach this? I am an Android developer so I don't have much iOS experience My implementation so far

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fun getConnectionType(): ConnectivityState {
        val network = CTTelephonyNetworkInfo().currentRadioAccessTechnology
        return if (network == CTRadioAccessTechnologyLTE || network == CTRadioAccessTechnologyWCDMA ||
            network == CTRadioAccessTechnologyEdge || network == CTRadioAccessTechnologyGPRS ||
            network == CTRadioAccessTechnologyCDMA1x
        ) {
            ConnectivityState.Cellular(
                carrier = CTTelephonyNetworkInfo()?.subscriberCellularProvider?.carrierName ?: ""
            )
        } else if (network == null) {
            ConnectivityState.NoConnection
        } else {
            ConnectivityState.Wifi
        }
    }

I am not able to figure or device model since when I call

UIDevice.currentDevice.model

it returns iPhone. I found this on stackoverflow but not sure how to write this code in KMM https://stackoverflow.com/a/11197770/4040394

Philip Dukhov

12/31/2020, 8:41 AM

I’m new to AppCode, very happy with the reformat code feature, but faced a small issue. it replaces

.sorted { f1, f2 -> Bool in

with

.sorted { f1,

f2 -> Bool in

I can’t seems to find the rule responsible for this. Is there any way to see which rules were applied to particular lines?

Roman Vasilyev

01/03/2021, 9:28 PM

hi, want to join ktor ios websockets development, how I can do it?

google 1

magnumrocha

01/05/2021, 6:08 PM

how to correctly call the function:

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@kotlinx.cinterop.internal.CCall public external fun SCNetworkReachabilityGetFlags(target: platform.SystemConfiguration.SCNetworkReachabilityRef? /* = kotlinx.cinterop.CPointer<cnames.structs.__SCNetworkReachability>? */, flags: kotlinx.cinterop.CValuesRef<platform.SystemConfiguration.SCNetworkReachabilityFlagsVar /* = kotlinx.cinterop.UIntVarOf<kotlin.UInt> */>?): kotlin.Boolean { /* compiled code */ }

to receive the

kSCNetworkReachabilityFlags…

correctly? in Swift, we can make the call:

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

And receive the flags in an array style…. In Kotlin Native, I am doing:

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// val flags = allocArray<SCNetworkReachabilityFlagsVar>(10) // -> this was my first attempt, they are 10 possible flags!
val flags = alloc<SCNetworkReachabilityFlagsVar>()

if (!SCNetworkReachabilityGetFlags(reachabilityRef, flags.ptr)) return false

the problem is I am receiving all the flag “summed” (they are

kotlin.UInt

), and not split in an array, like in Swift.

Samuel Bichsel

01/15/2021, 11:47 AM

Hey, we are trying to ask for the UNUserNotificationCenter authorization in kotlin and are experiencing the following error. Any idea what the reason could be?

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@ExperimentalUnsignedTypes
actual fun checkSystemPermissionsThunk(): Thunk<AppState> = { dispatch, _, _ ->
    val center = UNUserNotificationCenter.currentNotificationCenter()
    center.requestAuthorizationWithOptions(
        (UNNotificationPresentationOptionAlert + UNNotificationPresentationOptionSound)
    ) { isSuccess, error -> }
}

Stacktrace:

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at 0   Multiplatform Redux Sample          0x00000001084d67cf kfun:kotlin.Throwable#<init>(kotlin.String?){} + 95
    at 1   Multiplatform Redux Sample          0x00000001084cee5d kfun:kotlin.Exception#<init>(kotlin.String?){} + 93
    at 2   Multiplatform Redux Sample          0x00000001084cf0cd kfun:kotlin.RuntimeException#<init>(kotlin.String?){} + 93
    at 3   Multiplatform Redux Sample          0x000000010850427d kfun:kotlin.native.IncorrectDereferenceException#<init>(kotlin.String){} + 93
    at 4   Multiplatform Redux Sample          0x000000010850851f ThrowIllegalObjectSharingException + 623
    at 5   Multiplatform Redux Sample          0x00000001085f8852 _ZN12_GLOBAL__N_128throwIllegalSharingExceptionEP9ObjHeader + 34
    at 6   Multiplatform Redux Sample          0x00000001085fcd8d _ZN12_GLOBAL__N_136terminateWithIllegalSharingExceptionEP9ObjHeader + 13
    at 7   Multiplatform Redux Sample          0x000000010862b133 _ZNK16KRefSharedHolder3refIL11ErrorPolicy3EEEP9ObjHeaderv + 67
    at 8   Multiplatform Redux Sample          0x000000010847084a _ZL39Kotlin_Interop_unwrapKotlinObjectHolderP11objc_object + 42
    at 9   Multiplatform Redux Sample          0x0000000108348a6e _63682e64726569706f6c2e6d756c7469706c6174666f726d2e726564757873616d706c652e7368617265643a736861726564_knbridge3 + 222
    at 10  libdispatch.dylib                   0x000000010a0c57ec _dispatch_call_block_and_release + 12
    at 11  libdispatch.dylib                   0x000000010a0c69c8 _dispatch_client_callout + 8
    at 12  libdispatch.dylib                   0x000000010a0cd296 _dispatch_lane_serial_drain + 796
    at 13  libdispatch.dylib                   0x000000010a0cdf9d _dispatch_lane_invoke + 493
    at 14  libdispatch.dylib                   0x000000010a0d9de2 _dispatch_workloop_worker_thread + 882
    at 15  libsystem_pthread.dylib             0x00007fff60c8aa3d _pthread_wqthread + 290
    at 16  libsystem_pthread.dylib             0x00007fff60c89b77 start_wqthread + 15

kpgalligan

01/15/2021, 3:23 PM

You probably need to freeze

{ isSuccess, error -> }

kpgalligan

01/15/2021, 3:24 PM

Once you're in iOS land and it starts passing data around threads, you need to explicitly manage frozen state.

kpgalligan

01/15/2021, 3:24 PM

@Samuel Bichsel ^^

Samuel Bichsel

01/15/2021, 4:34 PM

Thanks. Things really get messy over there. I did find out, that it worked when I freeze the completion handler, but then I wasn’t able to call anything in the completion handler. So I ended up dispatching a NSNotification and doing it in Swift. But thanks anyway

kpgalligan

01/15/2021, 4:52 PM

but then I wasn’t able to call anything in the completion handler

kpgalligan

01/15/2021, 4:52 PM

Why?

Tresa

01/21/2021, 1:54 PM

Hi everyone

Tresa

01/21/2021, 1:54 PM

When we have a KMM module A and a development POD called B which is dependent on A, B builds fine and pod install happens fine. If There's a module C, who has dependency to B via pod, then we get error:" target has transitive dependencies that include statically linked binaries:", while pod update. To fix this if we comment out use_frameworks! or remove it from podfile of C, pod install happens fine but build fails with could not find module SQLCipher, SQLCipher is depended by A via the cocoapods plugin in gradle. If we use another solution for transitive dependency as follows

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pre_install do |installer|
Pod::Installer::Xcode::TargetValidator.send(:define_method, :verify_no_static_framework_transitive_dependencies) {}
end

we end up with other errors during build like Undefined symbols for architecture x86_64: "_sqlite3_bind_text16", referenced from: _SQLiter_SQLiteStatement_nativeBindString in ConnectPlusSharedDB(result.o)

kpgalligan

01/21/2021, 6:46 PM

The last one is easy. You aren't linking to sqlite or sqlcipher, so it can't satisfy the link to

_sqlite3_bind_text16

Tresa

02/01/2021, 10:16 AM

Hi All, Trying to integrate https://github.com/touchlab/KotlinCocoapods into the KMP to build dynamic frameworks for our iOS projects

Tresa

02/01/2021, 10:16 AM

Could not set unknown property 'isStatic' for object of type co.touchlab.kotlin.gradle.plugin.cocoapods.CocoapodsExtension.

Shawn Tucker

02/04/2021, 3:45 PM

Hello, Anyone knows why I am getting a Document instead of Executable when building with cocoapods?

Tresa

02/04/2021, 4:15 PM

Hi Everyone , I get this error when running the kotlin target xcode

Tresa

02/04/2021, 4:15 PM

SAFE_CONFIGURATION="Release" if [ "$CONFIGURATION" = "Debug" ]; then SAFE_CONFIGURATION="Debug" fi MODULE_ROOT="$PODS_TARGET_SRCROOT" "$MODULE_ROOT/gradlew" -p "$MODULE_ROOT" ::syncFramework -Pkotlin.native.cocoapods.target=$KOTLIN_TARGET -Pkotlin.native.cocoapods.configuration=$SAFE_CONFIGURATION -Pkotlin.native.cocoapods.cflags="$OTHER_CFLAGS" -Pkotlin.native.cocoapods.paths.headers="$HEADER_SEARCH_PATHS" -Pkotlin.native.cocoapods.paths.frameworks="$FRAMEWORK_SEARCH_PATHS"

Configure project :

Kotlin Multiplatform Projects are an Alpha feature. See: https://kotlinlang.org/docs/reference/evolution/components-stability.html. To hide this message, add 'kotlin.mpp.stability.nowarn=true' to the Gradle properties. FAILURE: Build failed with an exception. * What went wrong: A problem occurred configuring root project 'xxx'.

Failed to notify project evaluation listener.

> Unknown target name:

crumpf

02/09/2021, 6:15 PM

Are there any mechanisms (or tips) on making the generated framework headers read more like a purely native Swift or ObjC framework so that the Kotlin classes and interfaces aren’t exposed? When delivering a KMM framework for internal business projects the added Kotlin classes may be understood or easily educated, but for a framework that would have the possibility of being distributed external to a business it feels like a developer being exposed to all the Kotlin classes could be less well understood.

Nikolay Kasyanov

02/12/2021, 7:14 AM

https://bogo.wtf/arm64-to-sim.html

➕ 2

Anthony Pages

02/15/2021, 11:34 AM

Hi everyone, I’m a newbie in xcode and iOS stuff but I’m focusing today on the debugging process. Is there a way to debug (with breakpoint into my kotlin files) my cross library used into my iOS app ? I’ve found some stuff around a xcode-kotlin plugin, but the news are dated from 2019. I also have seen that InteliJ have App Code enabling it, but didn’t test it already. If you have any advice, I will enjoy it ! Thx and have a good day.

kpgalligan

02/15/2021, 5:20 PM

xcode-kotlin

is currently maintained. It should work. The docs could use an update, and we have some efforts in progress, but you can certainly use it.

🎉 2