I want to scroll a

LazyRow

so that the element is centered.

LazyListState.animateScrollToItem()

takes an

index

and a

scrollOffset

as arguments. Per default it scrolls the list so that the item is the first one. If a positive

scrollOffset

is given it scrolls further, making the item go off scren. So I tried to give a negative

scrollOffset

and calculate what I need so that the element is in center position. The problem is: Negative Offsets are not allowed. 😞 How can I scroll to an index that it's at the center of the list?

Is Gson available in KMM? if not what would be the alternative of Gson, I used

Kotlin Serialization

but not giving alternative of

TypeToken

example use case is I wanted to convert below snippet completely into KMM specific by just using

kotlin.serialization

end up seeing

typeToken

not found

fun <T : Any> getTypeListv(typeArgument: KClass<T>): KType? {
    return TypeToken.getParameterized(List::class, typeArgument).type
}

Hey guys, Is it possible to tell retrofit to ignore certain fields of an object when sending the object over the network? We have a request object

Profession

that we send to our backend using Retrofit.

data class Profession (
	@SerializedName("activeSince") var activeSince : Long?,
	@SerializedName("name") var businessName : String?,
	@SerializedName("description") var businessDescription : String?,
	@SerializedName("licenseImageUrl") var licenseImageUrl : String?
)

Sometimes we send the entire object, but other times, I prefer to only send specific fields (for example, only the

businessDescription

and

businessName

). Is it possible to tell retrofit to not include the other 2 fields in the network request? (

activeSince

and

licenseImageUrl

). Note: I can’t send

activeSince

and

licenseImageUrl

as null. Our backend will send me back errors if I attempt to do that (edited)

Are there official Proguard rules for Ktor?

Hello good people. Is it possible to have 2 versions catalog ( or some trick to merge two of them )? The scenario is: We have the

main

project and a

sub

project as a submodule. Having different dependency versions caused some troubles, so we wanna align them.

sub

will have some dependencies in its toml file, but

main

would need some dependencies that are not available in

sub

Hi, I’m getting this error:

Property delegate must have a 'getValue(Nothing?, KProperty<*>)' method. None of the following functions is suitable: public inline operator fun <T> Lazy<???>.getValue(thisRef: Any?, property: KProperty<*>): ??? defined in kotlin

in this line:

val slackCommandListener by inject<SlackCommandListener>()

My listener is defined in koin as follows:

//in modules.kt
val listenerModule = module {
    factory { SlackCommandListener(get(), get()) }
}

//in koin.kt
install(Koin) {
        slf4jLogger(level = org.koin.core.logger.Level.ERROR)
        modules(serviceModule, controllerModule, listenerModule)
}

I’m getting this while starting my app via

./gradlew run

. IntelliJ is not showing any error. Can someone please help? T.I.A.

I'm using Compose Coil for image loading in my project, I have a grid of images shown in my composable and they're driven by a state that would update the grid to another set of images. I'm using Coil with this image loader

val imageLoader = remember {
    ImageLoader.Builder(context)
        .bitmapFactoryMaxParallelism(10)
        .respectCacheHeaders(false)
        .build()
}

(I was playing around the bitmap parallelism and cache headers, I also tried providing disk/cache policies and enabling them in the

ImageRequest

but it seems like Coil is quite slow to load the images after they are cached. I tried my same code but use picasso-compose and the images load instantly (After being cached) whereas using Coil there's a split second load, I added a debugger to Coil to make sure it's not loading the image again from the internet (and it's not) The above was on production build for both Coil and Picasso Has anyone experience some performance issues with Coil in Compose?

I have a

LiveData

of type

MutableLiveData<MutableList<User>>

. I have an issue. If I update the

value

by another

MutableList<User>

the changes are emitted to the observers. However, if I simply add other elements to the

MutableList<User>

, that is already initialised in the

LiveData

, the changes are not emitted. Here is what I am doing...

//other codes 
private val _users: MutableLiveData<MutableList<User>> = MutableLiveData<MutableList<User>>()

init {
    _users.value = mutableListOf<User>()
}

val uiScope = CoroutineScope(Dispatchers.Main + Job())

fun loadUsers(){
    uiScope.launch{
        // this works perfectly
        _users.value = fetchUsers() as MutableList<User>
        // this doesn't work... no idea why
        _users.value.addAll(fetchUsers())
    }
}

suspend fun fetchUsers(): List<User>{
    return withContext(<http://Dispatchers.IO|Dispatchers.IO>){
        //fetch users asynchronously
    }
}

This is just an emulation of the actual program. That actual code is not that trivial.

What is a good way to schedule a repeating task in a platform agnostic way?

fun main() = runBlocking {
    val component = Component {
        var a = 0; var b = 0
        every(50.milliseconds) {
            if (it % 20 == 0) println("A: ${a++}")
        }
        every(1.seconds) {
            println("B: ${b++}")
        }
    }
    component.enable()
    delay(50.seconds)
    println("Done!")
}
context(Toggled) @Base
suspend fun every(period: Duration, block: suspend (Int) -> (Unit)) {
    simultaneously {
        var i = 0
        while (isActive) {
            block(i++)
            delay(period)
        }
    }
}

The problem with this is that over time the two tasks get way out of sync: A: 47 B: 49 After 50 seconds

what's the kotlin equivalent to

buildConfigField("String", "API_KEY", API_KEY)

and under where should it be placed in the default build script intellij IDEA gives you for a jvm console project? I tried just about anything and it just seems buildConfigField is not recognized on kotlin side of things