Anybody knows why I can't use a declared dependency when creating a x-platform Kotlin library? Even though I add it to commonMain, it's visible only in androidMain :/

sourceSets["commonMain"].dependencies {
        implementation("org.jetbrains.kotlin:kotlin-stdlib-common")
        implementation ("org.java-websocket:Java-WebSocket:1.4.0")
    }

Java-WebSocket seems to me just a java library, so shouldn't it be available in common library part?

For some reason in my

Service

I'm unable to get a

String

from resources, tried in

onStartCommand()

onCreate()

and

onDestroy()

, does anyone have any ideas?

Hello everyone, I am learning Kotlin and I have a question about enum vs sealed classes. Should I use sealed when my enum constants needs diffferent constructors ? Should I always use sealed classes no matter what ...

Hello! Do you now jetpack compose channel or use stackoverflow for questions? Unfortunately I did't find good tutorial about all compose items and have some problem.

I've this code in a `ViewModel`:

private val testSingle = Single.just("item1")

private val foo = testPublishSubject.startWith(testSingle.toObservable().doOnNext {
    Timber.i(">>> single on next: $it")
}).doOnNext {
    Timber.i(">>> PS on next: $it")
}

fun onSomeEvent() {
    testPublishSubject.onNext("item2")
}

So it's a

PublishSubject

that gets initialized with a

Single

. On certain event, I push a new value to the subject. So far so good! The problem: I navigate to next screen and navigate back. Then the subject is reset to the initial

Single

value ("item1"). Why? The

ViewModel

is not reinitialized.

Hi, does anybody know any alternate AndroidTV frameworks or library except Leanback? Something written in Kotlin with modern approaches? Because Leanback looks like old, weird and with strange “presenter” system..

I thought Android TV was deprecated

I'm porting an iOS app to Kotlin/Android. Is there a parallel to CLLocationCoordinate2D in Android? I found Location, but that's more analagous to iOS's CLLocation (which is a coordinate plus bearing and other things). I found LatLng which looked like it might be what I wanted until I noticed that was in androidx.car. 😞 Number DDG searches aren't really turning up anything. Maybe there's a class name that's just obvious, I've missed it? Or a third party library?

I'm working on a codebase with both Java and Kotlin code, i introduced Kotlin coroutines to help in running background tasks, however i have a function in my repository marked with the keyword suspend and i call it from an Intent Service that is written in java to sync local db with remote. However i can only call a suspend function from another suspend function or a coroutine builder. I three options in mind: Option 1 Use GlobalScope.launch(Dispatchers.IO) on the function so that i can call it from the Intent Service. However GloablScope is not highly recommended in the android context. Option 2 Make my repository extend Coroutine Scope, create a public function called onCleared that cancels job, then call this function when the service onDestroyed method is called or when the view model onCleared method is called. This option is to try and cancel any running operations. Option 3 Use the viewmodel scope to launch the coroutine in the repository, then call the viewmodel from the service, however the viewmodel should only be limited to an activity or fragment. Option 4 Refactor the intent service to Kotlin and use coroutines

Hello Can anyone Suggest me good Android book which i can use it from scratch.

Hey guys, I am really confused. I am fetching some variable programatically from my dimens.xml. When on evaluating expression on the android studio debugger, I get “ResourceNotFoundException” However, the variable does get its value and works fine. Any idea why do I get that exception when debugging?

Hey guys, Can main app module and library module have different product flavors. If yes then how?

What’s the latest on “How to accessibility” (especially in these

ConstraintLayout

days)? Any recommended guides, documentations, tutorials, talks?

When trying to start an RecognizerIntent I get the following exception in the logs, which causes the intent to finish immediately

Does anyone have a way to instantiate a DialogFragment with an lambda?

Has anyone here used the cloudtestingscreenshotter_lib.aar to take screenshots during an instrumentation test? It’s not working here. (Reference: https://firebase.google.com/docs/test-lab/android/test-screenshots#view_screenshots) Failing with the following message:

E/cloud_screenshotter: Exception taking screenshot: <http://java.io|java.io>.FileNotFoundException: /sdcard/screenshots/UnknownTestClass-unknownTestMethod-test-1.jpg (No such file or directory)

Hey guys any working plate recognition libraries available online? Or any service that could accept images being sent to them. Anything really. Need it for a school project. I dont care how good it is, just need anything. I couldnt find a working project nor library. Everything is either outdated or not working properly.. Any link or help will be appreciated! Thanks!

Is there a Kotlin way to avoid the code duplication marked here? (Those are syntactic views references)

From here: https://developer.android.com/topic/libraries/view-binding

private var _binding: ResultProfileBinding? = null
// This property is only valid between onCreateView and
// onDestroyView.
private val binding get() = _binding!!

override fun onCreateView(
    inflater: LayoutInflater,
    container: ViewGroup?,
    savedInstanceState: Bundle?
): View? {
    _binding = ResultProfileBinding.inflate(inflater, container, false)
    val view = binding.root
    return view
}

override fun onDestroyView() {
    _binding = null
}

binding

cannot be null never? If for some reason I want to get the context via

binding.root.context

and the fragment is not attached, I can not get a NPE? @jw

I am confused about a scenario where there are couple of activities put together, but I want to have single viewmodel for each of the activities instead of keeping each activity with their individual viewmodel. What are pros and cons with this approach?

Does anyone know how to create a WebView with Jetpack Compose?

any library recommendation for lightweight date operations (like "days between 2 dates")? I'd prefer something that doesn't add extensions to numbers

Anyone knows how to invoke a method before a method that has a custom annotation? I want to run some code before this method with a custom annotation. How can we do this in kotlin?

hey guys, So... im want to add permissions into my app? My question is... where should i add them? In the main activity?, a helper class? what?!... Thanks in advance.

i have a marker interface

interface RoomModel

and an entity that implements this interface

@Entity(tableName = "ContentAuthorModule")
ContentAuthorModule : RoomModel {}

now if i have a

List<RoomModel>

how do i check if its a

List<ContentAuthorModule>

I tried to do

roomModels is List<ContentAuthorModule>

override fun saveRoomModels(roomModels: List<RoomModel>) {
    when(roomModels) {
        is List<ContentAuthorModule> ->
            contentAuthorModuleDao.insertAll(roomModels)
    }
}

but it gives my a syntax error that says

Cannot check for instance of erased type : List<ContentAuthorModule>

is there another way to do this?

I'm writing Espresso UI tests for my Android app. The trouble is I can't figure out how to iterate through my

ChipGroup

and perform a click on individual `Chip`s. Any ideas?

if i have a variable

clazz

that is a

KClassImpl

how would i check if that is of type

FooBar

i tried this

clazz.java.isInstance(FooBar::class.java)

but that always returns false

which has quite some code to support multiple back stacks.

I'm using navigation components in a large complex app. It provides an extension function

by navGraphs()

which lets you scope 1 viewmodel to all the screens inside a specific navgraph. Normally you would have 1 viewmodel for each screen. Besides the benefits (easy state/data sharing between all your screens) what is a potential drawback of this approach?