Retrofit respone null in Data Class Im newbie about kotlin. My first project is consume rest api. I already make that using retrofit. But i have problem, when im log the respone why my data class is null? I dont know where is the error. My Rerofit Client object RetrofitClient { var retrofit: Retrofit? = null fun getClient(baseUrl: String): Retrofit? { if (retrofit == null) { //TODO While release in Google Play Change the Level to NONE val interceptor = HttpLoggingInterceptor()...

To check the element of the collection I want to check if my collection already has an item with the same name(connection.name) and if there is, then call a method that will do something, for example, change the field: connection.name At the moment I get the collection as follows: override fun getListItems(context: Context): List { return connectionsRepository.getAll().map { connection -> ConnectionViewModel( code = connection.code, name = connection.name, } }

Micronaut - How to inject Hibernate validator I am using the Hibernate validation mechanism in my Micronaut project as the documentation suggests. Unfortunately, I need to react to validation errors manually and handle the errors with specific exceptions. Thus, I can not use the recommended way of validating method arguments fun doStuff(@Valid argument: MyArgument): ... {...} I want to inject the Validator to my class, call it and process the results myself. In Spring this was easily doable. Micronaut unfortunately tells me it does...

Android - Making Properties mandatory Based on Type I am using kotlin for android development, I have a data class say for example Vehicle and there will be three field vehicleType, MotorCycle, and Bus, when i set the vehicleType as twoWheeler it should show MotorCycle as mandatory and when i set Bus as a vehicleType at the compile time it should show me Bus field as mandatory(like annotations) Example data class Vehicle(val type : vehicleType, val motorCycle : Any, val bus : Any ){ companion object{ const val TWO_WHEEL = 0...

java to kotlin Type mismatch i try to convert the given java(below) code to Kotlin but stuck at some point ,showing an error Type mismatch this is the java code i would try to convert to kotlin public void insert(List userPreferences,InsertCallback callback ){ ioExecutor.execute(()-> { userPrefDao.insert(userPreferences); callback.insertFinished(); }); } @Override public void onSuccess(List userPreferences) { localCache.insert(userPreferences,()->...

I want to display recycler view as a home display with navigation layout First,i want to working with navigation layout,then i want to display a recycler view as a default

How to create Text Field in Android to use in a Flutter app Instead of a TextField Widget, I want to use the android text field in my flutter app. I can use TextField widget but there are a few problems I get with it. Is there a way to use Android Text field with flutter? How can I set and get a text in it? The Problems I get with Flutter's TextField Widget is: Can't use Autofill I can't change cursor height There's no Select all option or search on web when long pressed Scrolling is not smooth Strange behavior with text over a page or 2 long, when...

How can i get album art music file? fun initMusic() { var cursor: Cursor? = contentResolver.query(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, null, null, null, MediaStore.Audio.Media.TITLE + " ASC") if (cursor!!.moveToFirst()) { do { var title = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.TITLE)) var album = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM)) var...

Which is better programming language for time complexity between java and kotlin? [on hold] I have solved a problem following the same way using kotlin and java separately but I got a huge difference in time complexity. Kotlin took 240 ms but java took 1 ms to run the program (runtime complexity). Can you please clarify why kotlin take more time than java to run a program?

How should I restart/retry Kotlin coroutine after exception in Android I am really happy that I switched my long running tasks, which constantly produce results to UI thread to coroutines. It improved performance and decreased memory usage by 3 times and all memory leaks disappeared compared to AsyncTask or regular Threads in Android. The only problem remains is that, I don't know how should I restart my long running operation after exception has occurred at some time... I feel I did not understand exception handling in coroutines at all after reading tons of...

Unable to Exclude generated classes from kotlin jacoco test coverage I am trying to exclude some generated classes from jacoco coverage report. Which is working fine with groovy but after converting to Kotlin it's not working tasks.withType { afterEvaluate { files(classDirectories.files.forEach() { fileTree(it).apply { exclude("com/generate/**") } }) } violationRules { rule { limit { minimum = BigDecimal(0.30) } } } } tasks.getByName("check")...

override onclick behaviour of Push message Android I'm developing a chat message App. When clicking on the Push Message I want to be able to influence the behaviour based on the state of the App. Because: when the App is out of the phone memory, it should show the login screen But when the App is active and opened, and the list of chats is displayed, it should show the push message and when clicking it shouldn't show the login because the user is already logged in. code: class PushMessageService : FirebaseMessagingService() {...

Throw exception spring boot webflux I am trying to make a condition, which if not satisfied, throw an exception. But I tried in many ways and without success. My restcontroller: @GetMapping(value = ["/{id}"]) fun find(@PathVariable id: String): Mono { return ResponseEntity.ok().body(service.find(id)).toMono() } My service override fun find(id: String): Mono { return repository.findById(id).doOnError { throw DataNotFound("Person not found")} } If I enter an existing ID, it returns me a registered...

How do I add dependencies to my custom Gradle plugin? I get a NoClassDefFoundError when trying to add a dependency to my custom Gradle plugin, and I haven't found a way to solve it. Added to the plugin's dependency block: implementation("org.apache.logging.log4jlog4j api2.11.2") implementation("org.apache.logging.log4jlog4j core2.11.2") Added to <a...

Application crashes while uploading image captured from camera using retrofit multipart on KitKat 4.4.4 API 19 As per the requirement, The user of the app clicks an image from device camera and then uploads it to server. Everything is working fine when I test my APK on Lollipop and above but when I test it on below Lollipop(specifically on KitKat 4.4.4 API 19) the app crashes with the exception java.io.FileNotFoundException: /: open failed: EISDIR (Is a directory). Before passing the intent to Camera I am creating a File and passing it the Uri.Also during File creation I am saving the file path in...

Kotlin Extensions: Layout components are null I have a kotlin custom view CustomErrorView which is used as element in a master layout. I've done this before multiple times but this time can't find out why the TextView and Button are null when they need to be accessed. kotlin-android-extensions is applied, so this shouldn't be the problem. CustomErrorView: (animation_view, reload_text and the others are NULL) import android.animation.Animator import android.content.Context import android.util.AttributeSet import android.view.View import...

How do I debug ComponentRegistrar, DeclarationAttributeAltererExtension and CommandLineProcessor in a custom Gradle plugin using GradleRunner? I have a functional test utilizing GradleRunner.create().withDebug(true), and with that I can debug some parts of my custom Gradle plugin from IntelliJ IDEA. I can...

I'm calling startActivityForResult and finding that onActivityResult is not called I'm trying to choose an image from the gallery and apply it to a text view. I call startActivityForResult() and overriide onActivityResult() but testing I found onActivityResult() is not called. Would could the reason for this be? It has super.onActivityResult(requestCode, resultCode, data) var intent: Intent = Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI) startActivityForResult(intent, IMG_RESULT) } }...

Getting Error in the app behavior in the new androidx artifact I am working on an android app. Which have a collapsing toolbar in the MainActivity. And I am using the new bottom Navigation view which provides by androidx artifacts with some additional libraries added on it. So, I am facing the problem with the app behavior @string appbar scrolling behavior. It's showing an error, but when I used it without androidx artifacts, it is working fine. Please, let me know if you find any solution regarding this problem. Thank You.

getting variables from on_activity_result i have the val from onActivityResult (selectedFile), i need to get the result into a function, how can i do it ? tried with .$ without success here is my code: override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) { super.onActivityResult(requestCode, resultCode, data) if (requestCode == 0 && resultCode == AppCompatActivity.RESULT_OK) { val selectedFile = data?.data //The uri with the location of the file toast("selectedfile is :...

Assignments are not expressions, and only expressions are allowed in this context private fun copyDatabase(context: Context): Boolean { try { val inputStream = context.assets.open(DatabaseHelper.DBNAME) val outFileName = DatabaseHelper.DBLOCATION + DatabaseHelper.DBNAME val outputStream = FileOutputStream(outFileName) val buff = ByteArray(1024) var length = 0 while((length = inputStream.read(buff)) > 0) { outputStream.write(buff , 0 , length) } outputStream.flush()...

Pressed out button I have class "myButton" that inherits from class "Button". Inside implemented method "onTouch", which works if you press the button. And I need to perform actions when you click wherever outside the button. Is there any way to verify that the touch was made outside the button? I came up with the idea to add a touch check to the View (full screen). But in this case, if you click on the button, two events "onTouch" will be activated: inside my class "myButton" and clicking on View.

Firebase auth: problem with insert user on Google Sign-In in Android I try to create auth with Firebase in my android project. after following the documentation, I can access user details like email or displayName but method signInWithCredential in firebase displays error. code: private fun firebaseAuthWithGoogle(acct: GoogleSignInAccount) { val credential = GoogleAuthProvider.getCredential(acct.idToken, null) auth.signInWithCredential(credential) .addOnCompleteListener(this) { task -> if...

MediaRouteButton State unstable in FragmentActivity How to keep MediaRouteButton state and avoid disabled state on FragmentActivity I have written a service to handle all cast sdk logic on fragment activities in my project. When created that MediaRouteButton is enabled and I'm able to connect but if I disconnect from cast device or do not select a device soon enough, the button is disabled and is shown in grey color. It may be related with the default route connection. I have tried setting a mediaRouteSelector and also leaving it with the...

How can websocket broadcast be implemented with http4k? I'm building a small websocket app with http4k websocket and looks like there is no documentation about how to implement message broadcasting with it (i.e. react to a message sending it to all the clients except the one that sent the message). Is it possible?

configuring project ':arcore_flutter_plugin' After configuration of arcore_flutter_plugin faced some problem on gradle tried a demo video shot by MTechviral on AR with flutter Error running Gradle: ProcessException: Process "D:\My Files\flutter-apps\ar\android\gradlew.bat" exited abnormally: Configure project :arcore_flutter_plugin Project evaluation failed including an error in afterEvaluate {}. Run with --stacktrace for details of the afterEvaluate {} error. FAILURE: Build failed with an exception. * What went wrong: A...

How to get specific instances of markers through a loop So I am trying to create a setOnMarkerClickListener looping through an array list and drawing a line to a clicked marker for directions. However whenever a marker is clicked a line only generates for the last marker generated in a list and loop. I thought of just adding another array and looping through that for every onclick listener created but since it is already in a loop...it should just generate a line for the marker clicked on and only that @SuppressLint("MissingPermission")...

Add and remove buttons in RadioRealButtonGroup programmatically I need to add and remove buttons from a RadioRealButtonGroup programmatically. Does anyone know how to do this? More specifically how to remove the buttons without disturbing my RadioRealButtonGroup because I populate the group according to the data consumed in an api rest. lib used: (https://github.com/ceryle/RadioRealButton) I have already tried removing each view individually (.removeView), by index...

JUnit test not sending values as parameters to function (Kotlin) I am creating a simple junit test to test a function in my view model but the first assertion fails as the function I call returns null. When I debug the function I call has null parameters which is weird cause I pass them in. I have spent time debugging and searching for why I am having that issue but I have found nothing that fixes my issue or tells me what the issue is. @RunWith(MockitoJUnitRunner::class) class CurrencyUnitTest { @Rule @JvmField val rule =...

How to close navigation DrawerLayout onBackPressed in Navigation Controls Fragment I have created an Androidx project with Navigation pattern. Now i wan't to close drawerLayout onBackPressed in fragment. there is no way I guess to override the onBackPressed in fragment I want to know how i can achieve this. Here is my drawer. Wanna achieve this override fun onBackPressed() { if (drawerLayoutHome.isDrawerOpen(GravityCompat.END)) { drawerLayoutHome.closeDrawer(GravityCompat.END) } else { super.onBackPressed() } }...