Is it possible to toggle/view status of vpn from inside app? My app is done and working. The people who will be using the app are not the most computer literate. I am trying to show the vpn status or give a way to toggle the vpn from inside my app. The vpn has always on enabled but sometimes runs into a problem where it needs to be disabled and re-enabled. I am trying to create this process in the easiest way possible. The vpn currently in use is androids built in vpn. ( this may change later if I find another vpn that works better) Thank you for all...

Attempt to invoke virtual method 'void androidx.recyclerview.widget.RecyclerView.setLayoutManager(androidx.recyclerview..)' on a null object reference I want to write a good chat application with bottom navigation using Fragments. In ChatsFragment.kt I got a problem: My fun onCreateView() in ChatsFragment: override fun onCreateView( inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle? ): View? { usersRecycler.layoutManager = LinearLayoutManager(this, RecyclerView.VERTICAL, false) var userlist =...

Not getting my ID's from my XML File into my Kotlin file So, I'm new to this and I'd really appreciate a quick help. I'm making a chat app for android and my ID's ive given to EditText arent't being referenced into my Kotlin file. When I type them in, they aren't shown on the suggestion drop down and they have that yellow squiggle that says 'Parameter Not Used'. Here's the code from my XML file: and here's what i'm trying to do on my Kotlin file: package com.example.chatapp import...

how can i solve provide error causing by dagger-hilt? I'm using kotlin clean architecture + hilt in my project. this the error i got : C:\Users\ayoub\AndroidStudioProjects\cleanArchitecture_project\app\build\generated\source\kapt\debug\com\example\cleanarchitecture_project\presentation\App_HiltComponents.java:122: error: [Dagger/MissingBinding] com.example.cleanarchitecture_project.domain.repository.UserRepository cannot be provided without an @Provides-annotated method. public abstract static class SingletonC implements...

How to manage MVVM architecture when using socket feeds Hi already have android application which is in MVVM architecture, Now I am integrating socket for real-time feeds. I am confused here how to pass fit that real time data in that architecture. This Data is directly call inside fragment or pass to view model?

Android, manifest variables using C++ encryption (with NDK) I've just recently implemented NDK, and everything seems to work fine. Now.. I'm not sure on how to use the c++ method in the manifest, currenctly I'm able to use it via code by using a object that I created: object ApiKeyRetriever { init{ System.loadLibrary("api-keys") } external fun getGoogleKey():String external fun getFacebookToken():String external fun getDatabase():String external fun getFacebookProtocolScheme():String } I need it in the manifest for the...

Kotlin "Destructuring declaration initializer of type String must have a 'component1()' function" This is how I am calling the function :- val (ImageUrl: String) = uploadImage("ImageTitle", imageTitleUri!!) This is the function code:- private fun uploadImage(ImageName: String, ImageUri: Uri): String { val fileRef = storagePicRef!!.child("$ImageName.jpg") val uploadTask: StorageTask uploadTask = fileRef.putFile(ImageUri) var imageURL = "" uploadTask.continueWithTask(com.google.android.gms.tasks.Continuation { task -> if...

I need to get list with an argument private fun getRadResultList() { safeLet( arguments?.getString("referenceVisitId"), arguments?.getString("facilityId") ) { referenceVisitId, facilityId -> viewModel.getRadResultsWithId(referenceVisitId, facilityId) } } This is my previous code. The number of arguments requested by the function is now one. How do I return the facilityId in getRadResults() private fun getRadResultList() { safeLet( arguments?.getString("facilityId") ) { facilityId...

What is a proper way to connect with a media browser who is currently playing audio? I am currently working on an app that includes an audio media player. What I want to accomplish is to start a track on a fragment that represents the UI of the media player (like a bottom collapsed media player), and then when I click on this media player layout, I want to start an activity that will display the media player expanded (including skip buttons and progress bar). Right now, whenever I click on the above-mentioned layout, the activity starts but the track starts all over again...

Querying by value in JSONB field in h2/postgresql I have following json field in entity: {"uuid", "uuid2"} and I want to use @Query to find an entity which contains given uuid in this field. I have found a solution for postgresql (which we are using), but when I try to test it using h2 I get Function JSONB_EXISTS not found exception. Is it possible to make it work with both postgresql and h2 using same query? How I am creating a query (this works fine for postgresql, but not for h2): @Query( nativeQuery = true, value = "SELECT * FROM...

kotlin - password validation I need a password validation regex in kotlin characters length: with 8 to 16 combining at least two types of alphabet, number, and special characters "^(((?=.*[a-zA-Z])((?=.*[a-zA-Z])|(?=.*\\d)|(?=.*\\W)))|((?=.*[a-zA-Z])((?=.*\\d)|(?=.*\\W)))|((?=.*\\d)(?=.*\\W))).{8,16}\$" above regex, "abcdabcd" have to false, but true. "^(?=.*[0-9a-zA-Z])(?=.[!@#\$%^&])(?=\\S+\$).{8,16}\$" The above regex is a combination of two or more letters, including special characters, or upper and lowercase...

Jetpack Compose: How to center an item in LazyVerticalGrid? I have a LazyVerticalGrid composable that shows my items. I want to show an error message with a button in the center of LazyVerticalGrid when an error has occured. Here is my error item and my LazyVerticalGrid: ErrorItem @Composable fun ErrorItem( message: String, modifier: Modifier = Modifier, onRetryClick: () -> Unit, ) { Column( modifier = modifier .padding(dimensionResource(id = R.dimen.dimen_8)), horizontalAlignment =...

How create extension function ifNullOrEmpty? I want to create a function like ifEmpty() of Kotlin that will also check for null: ifNullOrEmpty{ //some code if null or empty } How can i do this? And does anyone know what the code below is called? : R where C : CharSequence, C : R Example of Kotlin ifEmpty() function. @SinceKotlin("1.3") @kotlin.internal.InlineOnly public inline fun C.ifEmpty(defaultValue: () -> R): R where C : CharSequence, C : R = if (isEmpty()) defaultValue() else this Thanks and have a nice day!

Repeat request if get 202 code Android Kotlin RxJava 2 I need to implement a request retry if 202 code comes using RxJava 2, the problem is that when I try to do this, then with 202 code the response from the server is empty, and with a successful response, the desired model comes, so with 202 code I get an error, and further processing by the response code does not occur. @GET("dogs") fun getDogs(): Observable This is response processing. private inline fun Observable.handle202(): Observable { return this .flatMap {...

Parse json String with forward slash in Gson I have to retrieve data from a rest api which just returns a String without any json format which also contains a forward slash which shouldn't be escaped. When I for example try to parse this: Gson().fromJson("foo/bar", String::class.java) I get the following error: com.google.gson.JsonSyntaxException: com.google.gson.stream.MalformedJsonException: Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 5 path $ But when I then try the setLenient like this:...

Ktor Server + Vue single page application I'm trying to create a REST API with panel admin. I have no problem with the API, but I have no idea on how to integrate Vue into the project. I can't find any example, the only example from ktor doc is with a react-app. I don't know how the vue package should be. In ktor I have that: routing { singlePageApplication { vue("vue-test") defaultPage = "public/index.html" } } And vue-test is a project created with WebStorm. I only copied it in the...

Activity takes a decade to open because I get Firebase queries at on Create private fun getAngryMovies() = CoroutineScope(Dispatchers.IO).launch { try { val querySnapshot = allMoviesCollectionReference .whereEqualTo("type", "Angry") .get().await() for (document in querySnapshot.documents) { val movieObj = document.toObject() if (!innerAngryMovieList.contains(movieObj)) { innerAngryMovieList.add(movieObj!!) } } showContent = true...

What is the name of the channel from Java/Kotlin to Flutter (not the way around) Flutter has the MethodChannel for sending data from Flutter to Java/Kotlin. We can also return values in these calls. But what if I want to return data at random times from Java/Kotlin to Flutter? I remember there is a kind of channel to send data from Java to Flutter, but I forgot its name

Proper argument type for scalar JSON graphql What is proper input argument type for scalar JSON @Argument? As the result I have all arguments in my map when I need only my: My schema.graphqls scalar JSON type Product { id: ID description: JSON! name: JSON! price: String } type Mutation { addProduct(description: JSON!, name: JSON!, price: String!): Product } I have controller with mutation: @MutationMapping fun addProduct( @Argument name:...

Convert plane text with forward slash from rest API to String with Gson I have to retrieve data from a rest api which just returns a plane String without any json format, which also contains a forward slash which shouldn't be escaped. When I for example try to parse this String: foo/bar which I can't change with this GsonBuilder: val gson: Gson by lazy { GsonBuilder() .registerTypeAdapter(LocalDate::class.java, LocalDateSerializer()) .registerTypeAdapter(LocalDate::class.java, LocalDateDeserializer())...

How to include kotlin.test properly via Maven? Our team is making first steps into Kotlin and I'm about to to migrate a test. I tried a first example from mockk (https://github.com/mockk/mockk/blob/master/mockk/common/src/test/kotlin/io/mockk/it/InjectMocksTest.kt). For some reason it seems I'm not able to use kotlin.test although I have added it via maven. Do I have to include any other modules?...

Recyclerview not showing items Kotlin My App is just shows an Empty Screen and recyclerView is not showing anything or is not working but there are no compile time or run time errors. It would be great help if I get an answer ... I have been making an app that uses a RecyclerView but its not showing any thing..why contents of the recycler view have not been showing up.my codes are bellow Here is My FeedFragment, Adapter //Fragment @AndroidEntryPoint class FeedFragment : Fragment(R.layout.feed_fragment) { private var...

Drag and drop cards to folders android Hii In my UI the above one is Card layout. And below is recycler view of folders. User Needs to drag card to bottom near by one folder. And then folder need to animate and come up. Then I have to copy the image to that folder. Then folder again need to reset to original position. Android Kotlin can anybody help ?

Consider defining a bean of type 'com.fasterxml.jackson.databind.ObjectMapper' in your configuration I know this is a sort of common question, I saw this one and a few others, what is strange to me is I have been using ObjectMapper for years now and this is the first time I am encountering this error, my code like this: import com.fasterxml.jackson.module.kotlin.* import com.fasterxml.jackson.core.* import com.fasterxml.jackson.databind.ObjectMapper...

ANDROID - Jetpack Compose: how to implement theme settings? I'm having hard times trying to implement a preference who switch the application theme. Normally I would be able to do it with XML but with Jetpack Compose I saw that the best practice is to use DataStore (https://developer.android.com/topic/libraries/architecture/datastore) Someone please, can explain me from scratch how to store a preference and change the whole application theme...

Should I use remembercoroutinescope or viewmodelScope? Which one is right for my scenario? In my example, I need to perform a process and if it is successful, the app should navigate to the next page. The first approach uses viewmodel scope on a non suspend function and then uses a callback to let the UI know that the process is complete. The second approach is declaring a coroutine scope in the UI level and then making the viewmodel a suspend function. Which would be the right approach for my scenario? What's the advantage of each approach over the other? Is there a particular...

Only on Windows: "Socket fail to connect address already in use" (Exposed, Koin, Flowables) I only encounter this problem when I am on Windows and actively work on the project with IntelliJ Idea. When I deploy it onto the Linux machine everything works fine. I already updated exposed, but it didn't help. The errors come in very quick succession and make using the app impossible. Additional libraries I use: Flyway, RxJava, Koin, Exposed Database connection: fun mariaDBModule(databaseConfig: DatabaseConfig): Module { val database = Database.connect( url =...

registerForActivityResult resultCode get 0 value I'm trying to use registerForActivityResult but the result of it is 0, which mean that it doesn't get the result from the activity. The code was working perfectly last month when i did it, but i don't know why it made the error today, i tried to check for error in the code, but i dont think there is one. Here is the function to use the camera : private fun UseCamera() { val takePictureIntent = Intent (MediaStore.ACTION_IMAGE_CAPTURE) val imagePath =...

Kotlin Multiplatform : add a Kotlin/Native as common code I want to create a Kotlin project compatible with Android and Desktop. This project needs to bind to a C library. The way I understand it, I should create a Kotlin multiplatform project, and have a common code which wraps the C library using JNI. However, Kotlin/Native allows a way easier interop with C libraries, so I'd like to use that. But it seems like Kotlin/Native is a platform (equal to eg jvm or android), so it can't be used as a common code. Is there a way to do what I want? I...