Kotlin Multi platform can you use Java or only Kotlin? For Kotlin Multi-Platform, can you only use Kotlin or Java as well, to create cross-platform code? https://kotlinlang.org/docs/multiplatform.html There is no mention of Java usage in https://kotlinlang.org/docs/native-overview.html#interoperability hence I doubt java is allowed to compiled into this...

JatBrains markdown parser, can it be used with Kotlin Native? https://github.com/JetBrains/markdown States: The processor is written in pure Kotlin (with a little flex) so it can be compiled to both JS and Java bytecode and thus can be used everywhere. But doesn't state anything about Kotlin Native. Can <a href="https://github.com/JetBrains/markdown" rel="nofollow noreferrer">JetBrains...

Not able to recover data from firebase before function returns the value (Android, Kotlin) I'm trying to recover data from firebase through a repository and It is happening correctly but in the wrong time override suspend fun getAllOnline(): MutableStateFlow { val docList: MutableList = mutableListOf() auth = FirebaseAuth.getInstance() database .child(auth.currentUser!!.uid) .addValueEventListener(object: ValueEventListener { override fun onDataChange(snapshot: DataSnapshot) { for(docs in snapshot.children)...

Filter Query using KMongo I want to filter out the courses on the basis of match query to the courseTitle. So How can I perform this operation via **KMONGO **at server side ? This is my Course Data Class And I have a course document in MongoDB compass. @Serializable data class Course( @BsonId var id: String = ObjectId().toString(), val courseTitle: String, val imageUrl: String, val description: String, val noOfStudentEnrolled: Int, val course_teacher : Teacher, var...

Kotlin Coroutines, decompiled code of a suspend function I'm reading Kotlin Coroutines by Tutorials, Chapter 4 - Suspending functions here by Ray Wenderlich However, I'm really struggling to understand the author's explanation of the decompiled code. Would someone be able to explain/describe the path of execution in the decompiled code as it pertains to suspend functions/continuations? suspend fun...

How many ways to save and fetch any arraylist into file android My application is working offline, here I am saving all data into file. So how can i save arraylist into file , so i can fetch are work accordingly. if you have any reference please suggest..

How to extends from data class in kotlin? I want to create data class extend from another data class. I can not extend from another data class because of another data class is data class and i have no chance that change another data class. Another data class must be data class (not interface, open class etc.). I searched on internet and everyone says you should remove data tag and write open class. So how to extends from data class ?

How to pass a parameterized function from a object to a lambda function of other class in Kotlin I have a function fun submitFormWithData(abc: String) in my ViewModel class, the viewModel object is used in other class from where I just want to pass the function submitFormWithData, not the viewModel object, I'm able to pass a parameterized function to the other function if the function in the same class however if the function is accessed from a object it become difficult. Below is an example: class ViewModel { fun submitForm() { // do some thing } fun...

How To Use One Data Class For Two View Pager Android Kotlin In my app, there is a viewpager fragment that contains 2 tab. First tab is all data, second tab is top 10 data. When the fragment is loaded, it calls two API Endpoints @GET("api/get-all") suspend fun getAllLinks(@Query("userid") userID: String, @Query("token") token: String, @Query("page") page: Int) : Respond @GET("api/topten") suspend fun getTopTen(@Query("userid") userid: String, @Query("token")token: String): Respond Both of them will return the data to Respond data class data class...

Paging adapter unable to receive updated data I am currently building a fragment, and within the fragment contains 2 paging adapter sharing the same data. When I update the data, only one of the paging adapter receives the updated data while the other does not. On first start up. for reference (backdrop - top adapter/viewpager, poster - bottom adapter/viewpager) first item = second item = <a href="" rel="nofollow...

Get access to a component from other activity (Kotlin with Android Studio) I have the following problem: I would like to access the component (linearLayout4) of another activity from one activity. As you can see in the , the LinearLayout4 is not found because it is in another activity. How can I access LinearLayout4? Thanks in advance! Steve

can't Implement Favorite documents functionality in my app Hello Everyone i am working on documents reader app in android studio i have shown all my .pdf , .XLSX .PPT etc types of documents in my app now what i want is to implement Add to Favorite option in my app there will be a separate Activity/Fragment That will show all the favorite documents selected by user ? How can i achieve that ? * What i have Done I get the name of Favorite file and store it in my SQLite Database and compare all files name in my storage with the name of file stored in...

error: Field "launch" of type "com.example.spacex.models.launch.LaunchModel" is not supported REALM i'm trying to do an application that save/get data from realm. My problem is when I declare a realm object with a custom field variable. When I try to run the application the IDE give me this error : error: Field "launch" of type "com.example.spacex.models.launch.LaunchModel" is not supported. public final class NextLaunchConfiguration extends io.realm.RealmObject { this is my custom Realm database class: `class RealmDatabase(context: Context, selectedConfiguration: Int) { private var realm:...

Corrupt generation PDF from string - kotlin Android I want to build a PDF file from a string given by web service, actually I transform this string to byteArray and this code build and download this PDF but when its open with the default reader of my mobile it cant read it. //The call: lifecycleScope.launch { if(response.body()?.pdf != null){ download(StringToByteArray(response.body()?.pdf!!)) }else{ Toast(requireContext()).showError(getString(R.string.default_error_ws), requireActivity()) } }...

How to create below generic class in java and how to access that class? Below one is the kotlin code. I just want same thing in java how can i do that sealed class NetworkResult(val data: T? = null, val message: String? = null) { class Success(data: T) : NetworkResult(data) class Error(message: String?, data: T? = null) : NetworkResult(data, message) class Loading : NetworkResult() } I tried with the below one but was not able to access the inner class. Try to access this NetworkResult.Success(response.body()) but getting error 'Method call...

Kotlin + Firestore: How to add field to certain data of firestore database? I add data to firestore with below code. val user = hashMapOf( "loginType" to "app", "userId" to auth.currentUser, "createdTime" to current_time, "name" to (binding.nameInput.text.toString()), "gender" to (binding.genderInput.selectedItem.toString()), "phone" to phoneNumber, "birth" to (birthDBInput), "community" to (binding.communityInput.selectedItem.toString()) )...

How to recreate/reinit/restart hilt components in Android? I'm working on an app that allows you to change the language locally. To make this work without having to restart the app, I'm using the ContextWrapper on the BaseActivity, where I assign the language to the context: override fun attachBaseContext(newBase: Context{ super.attachBaseContext(ContextWrapper(newBase.setAppLocale(Session.getLanguage()))) } To change the language, I have used both the setLocale legacy and the ApplicationDelegate: Legacy fun setLocale(lang: String) { val...

How to stop a coroutine running periodically in the background I have created a coroutine extension function to run a coroutine in the background periodically at fixed interval. /** * Basic implementation of Coroutine automation handling * This method will receive a coroutine function block and will handle it according to the provided parameters. * @param intervalMils long value that indicates the delay in milliseconds between each repetition * @param startDelayMils long value in milliseconds that describes the initial delay before the coroutine...

Difference between launchIn and async What is difference between onEach with launchIn and scope.launch with async? Let's say we have method fetchData() that will fetch two independent API responses, so we want to get them asynchronously and update our ViewModel state. Method can look for example like this: suspend fun fetchData() { viewModelScope.launch { val data1 = async { repository.getFirstData() } // get data from api val data2 = async { repository.getSecondData() } // get another data from api...

Get an List inside other List in Kotlin Im trying to get an list that in inside an list. I receive an data from the server as MutableCollecion and I change for List But, as you can see, the list is inside another list. Like, the list 0 is inside the animeList. I want to know how can I get the value of the list 0 one by one, if possible. Here's the code I'm using to get the data from Database: firestoreClient.collection("Users")...

Kotlin and AOSP Development I am new to AOSP development and wanted to know the following: Can the Kotlin be used for AOSP development for Automotive Domain? If yes, are there any examples for the same? If No, reason why Kotlin cannot be used? Thanks in advance :)

What is the analogue of Mockito.verifyZeroInteractions(obj) in the Mockk library? I want to switch to Mockk, but i cant find analogue of this method in Mockk It doesn't work verify (exactly = 0) { obj }

Content padding parameter it is not used error in kotlin jetpack compose? How can I solve this issue Content padding parameter it is not used in kotlin ? I made a dictionary app and I edited some codes and I have a problem like this Where should I add the content padding? how can i fix it? @Composable fun MainScreen(navController: NavController) { Surface( modifier = Modifier.fillMaxSize(), color = MaterialTheme.colors.background ) { Scaffold(topBar = { TopAppBar( backgroundColor = bar,...

Kotlin constructor binding is not applicable to target 'class' i am new to Kotlin. I am trying to achieve same thing, i would do in java. in application.yaml, i have this config: conference: plans: - plan-id: P1_1 product-id: product1 employee-limit: 50 - plan-id: P1_2 product-id: product2 employee-limit: 100 then i want to create data class, so that , when i run the springboot application, this class is automatically loaded and validated in Conferences.kt file: package com.company.conferenceplanservice.config.properties...

how to I mock TextUtils.join() I am not using TextUtils directly but one of the libraries I am using must be using it under the hood. When I run the test, I get the following error: Method join in android.text.TextUtils not mocked. See http://g.co/androidstudio/not-mocked for details. java.lang.RuntimeException: Method join in android.text.TextUtils not mocked. See http://g.co/androidstudio/not-mocked for details. at android.text.TextUtils.join(TextUtils.java) at...

How can I tell if it's an image or video - Firebase Storage/Firestore everyone. I have several images on Firestore in an array. This array is in an object (house). The array contains both images which are all in storage. I only saved the ULS each time. How can I now check whether it is an image or a video from Firestore? When uploading to I use a task Since I use the time when uploading to storage, I can't get the file name either. Tasks.whenAllSuccess(tasks).addOnSuccessListener { val downloadUrls = mutableListOf() var count = 0...

Kotlin build gradle ~ dependencies resolves as type DependencyHandlerScorpe instead of KotlinDependencyHandler I am currently observing the following very curious behavior in the build.gradle.kts files of one of my projects: Basically, I have two modules, and the same import works in one, but not in the other. Upon close inspection, I have noted what I believe might be the root of the problem, though I have no idea why it happens or what to do against it. The core of what I want to do is to get this import running: kotlin {...

How to mock a Class&lt;T&gt; Generics object in webclient bodyToMono method I want to mock this webclient post call. Service fun post(uri: String, body: Any, responseType: Class): Class? { return webClient.post() .uri(uri) .bodyValue(body) .retrieve() .bodyToMono(responseType::class.java) .block() } I am getting a null pointer exception when I am mocking bodyToMono using a Class generic. ServiceTest @Mock lateinit var mockWebClient: WebClient @Autowired private lateinit var onelinkRestClient: OnelinkRestClient @Mock...

Chain Snackbar calls I'm trying to use the snackbar on Android Compose. However, as I'm trying to display 2 messages in a row on the snackbar, I can only see the first message, does anybody know what can cause this? I'm putting the code involved below: Component code related to Snackbar: /* The state is hoisted. It contains the snackbar message that is not null if there is something to display */ state.snackbarMessage?.let { resourceId -> val message = stringResource(resourceId)...

ViewPager2 - iterate through an array within an object and display the respective image everyone. I have an array of images in an object that is in a collection group. Now I would like to display the images with a ViewPager2. So far I have the following, which only ever shows me the first picture. So I can't swipe through the array. What am I doing wrong? DetailActivity.kt: db.collectionGroup("Objekte").whereEqualTo("timestamp",key.toString()).get().addOnSuccessListener { result-> for(document in result.documents) { val house =...