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

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)

Are namespaces coming to Kotlin (on JVM) soon? 😛

Hi guys! 🙂 There is a way to serialize with

@Serializable

a

java.util.Date

with this format

2018-11-14T13:25:30Z

? I´m using Ktor and

kotlinx.serialization

Hi, can one accomplish this

flowNodes.forEach { initialNode ->
        initialNode.succeedingNodes.list().forEach { nextNode ->
            graph.addArc(initialNode to nextNode)
        }
    }

in a more fluent way? Seems like I'm missing something. The use case would be the following: I have an initial Node 1 with the succeeding nodes 2 and 3. The target is to add 1 to 2 and 1 to 3 to the graph. thanks a lot!

how to wait for coroutine in non-suspend function?

fun f () {
  val result = async { ktor-client-function... return@async 1 }
  return result
}

Hello, World! A generics question that lets me perplexed 🤔!

fun <T> foo(a: T, block: () -> T) {}
foo("Hello") { 1 }

How come this compiles?

T

is

String

for

a

but

Int

for the

block

lambda. Bonus question: what's a way to make this not compile and enforce the same type? 🙂 Thanks 🙏

What's the idiomatic way to : if I have a listOf<String>(...) and then I map it to a listOf<MyUiClass> to once I have this listOf<MyUiClass> remove an item of it if let's say today == whatever. Pseudo : val myList = listOf<String>("example1","example2",...) val mappedUiClass = myList.map{myMapper.map(it)} //Here I'd like to remove one exactly item if a condition is true. So for instance if mappedUiClass contains {id=1,name="Jhon", type: "MyType1"} {id=2,name="Hual", type: "MyType2"} {id=3,name="Hjdu", type: "MyType3"} If the condition is true I just want to keep in mappedUiClass the id1 and id3, so if condition == true remove MyType2.

hello guys, i'm creating a quiz app, i'm having trouble translating the questions i get from the open trivia database to my app, i want to translate from english to portuguese! Can someone help me?

Not really a kotlin question, but rather a gradle. How should we check if option like

--info

or

--verbose

is passed within a task 👀 when creating the task :blob-thinking-upside-down:

Does anyone know if code like the following:

inline fun <T> identity(block: () -> T) = block
inline fun <T> do(block: () -> T): T = block()
fun main() {
    println(do(identity { "hello" })
}

would be optimised to basically the equivalent of this:

fun main () {
    println("hello")
}

Or would the lambda object still be created because it is being returned by

identity

? I don't have access to an IDE right this second but this question is burning me so thought I'd ask. If anyone has the time, try pasting this code into a kotlin project then doing

Show Kotlin Bytecode

then

Decompile

and look at the Java source code to see what happens.

In kotlin is there a way to give an interface to a class you don't own? I'm trying to reimplement a class from another library and want a shared contract between mine and that one as an intermediary until I'm finished.

as Coroutine's document says: "The main difference is that the runBlocking method blocks the current thread for waiting, while coroutineScope just suspends, releasing the underlying thread for other usages." and the code below works as it expected:

fun main() = runBlocking { // this: CoroutineScope
    launch { 
        delay(200L)
        println("Task from runBlocking")
    }
    
    coroutineScope { // Creates a coroutine scope
        launch {
            delay(500L) 
            println("Task from nested launch")
        }
    
        delay(100L)
        println("Task from coroutine scope") // This line will be printed before the nested launch
    }
    
    println("Coroutine scope is over") // This line is not printed until the nested launch completes
}

I made a change to see the difference, I changed the

coroutineScope

to

runBlocking

and then as the document said

runBlocking

blocks the current thread and

coroutineScope

suspends but I got the same output. does anybody know why?

I need to retrieve recursively the list of

.java

files given a root folder to redirect to

javac

. Isn't there a nicer kotlin alternative to this?

val sources = Files.find(Paths.get(srcDir), 999, { path, attr ->
            attr.isRegularFile && path.toString().endsWith(".java")
        }).map { it.toString() }.collect(Collectors.joining(" "))

Files.find

returns a

Stream<Path!>!

and I need to go trough

map

+

collect

+

Collectors

instead something more concise

In some cases this lack can cause repeated code and work in later applying fold etc to the Grouping

👋 Hey. Looking for some help. I am writing a game using kotlin native and KorGE. All my items classes are generated and extend the sealed class

Item

. This results in a kotlin file ~14k lines long. And Intellij IDEA simply cannot handle the file. It essentially freezes instantly as long as the file exists in the project. Any ideas on how to deal with this situation?

If you want to see Kotlin as an option for Embedded development (and as a high priority item on the Kotlin Roadmap - https://kotlinlang.org/roadmap.html ) then please vote for this issue: https://youtrack.jetbrains.com/issue/KT-44498

when i build a kotlin project, are resources from main/kotlin and test/kotlin not copied to the classes directory? i want to load json files in my unit tests with

javaClass.getResource("myJsonFile.json")

but it does not work.

hi, is it possible to tel IDE that this unused method is part of API that this library provides? so I won’t get unwanted warnings?

Hmm, I thought

String.trimIndent()

was a runtime function, but according to the the latest safari video up at 2:00 he says its compile time transformation, but then I tried to use it in a

const val

then it says

Const 'val' initializer should be a constant value

is it evaluated at run-time or at compile-time just not able to fit into

const val

(maybe because compiler can't figure it out easily)?

Hello, anybody knows how to introduce newlines in KDoc? I am using Dokka (using the Jekyll output for GH pages) to generate my documentation. What I tried: “\” at line end, empty lines and <br>. Did not work for me.

I’m developing a Kotlin multiplatform project. On my mac, everything works fine, but our iOS developer runs into trouble 😞 He gets this error

The Kotlin/Native distribution used in this build does not provide the standard library.

Does anyone have an idea whats going wrong?

Why negative reactions? Eclipse has a very strong presence in a variety of "enterprise" settings, for both backend and frontend development. Supporting Kotlin as a first class citizen in that ecosystem should be viewed as a positive.

class MyObject(private val a: Int, private val b: Double) {
	constructor(str: String) : this(parse(str))
	companion object {
		private fun parse(str: String): ???
	}
}

Is there anything that would allow this to work? Currently I have to create 2 parse functions, one to get the first and another for the second value I need.

Anyone playing with kotlin-multiplatform and this library: com.russhwolf:multiplatform-settings ? In my project which I have just created: IntelliJ 2020.3 > File > New > Project… > Kotlin > Mobile Application I have added a dependency:

val commonMain by getting {
   dependencies {
       implementation("com.russhwolf:multiplatform-settings:0.6.1")
   }
}

Inside iosMain I have added this code:

fun test(d: NSUserDefaults) {
    AppleSettings(d)
}

And everything compiles correctly but IDE complains about AppleSettings that (Cannot access class ‘platform.Foundation.NSUserDefaults’. Check your module classpath for missing or conflicting dependencies) [see image below] any ideas what could be the reason of this error?

Hi folks! Has anyone experience with Jetpack Compose in real life app? We are starting refactoring old project and I want to try it. But Compose in alpha still. Is it safe?

Do I have to create serializers for Java types? For example UUID and Instant or is there some library available for it?

Hey guys👋 New here. I have a problem. I'm trying to find a software complexity measurement tool for Kotlin. Like pmccabe for c/c++ I was looking at detekt, but the website regarding this feature gives me a 404: https://detekt.github.io/complexity.html Does anyone know how to measure complexity with detekt? Or does anyone know of another available tool?

is there a name for this syntax?

myCollection
    .map { ... }
    .filter { ... }
    .forEach { ... }

I know in Java i would call it “stream syntax” but that’s because there you actually need to create streams before being able to make these calls

Another discussion 😁 If you are in a situation where both

Set<T>

and

List<T>

are an option, which do you default to and why?