Encoding for mp3 file in Android Studio reading as Kotlin file? When I ran my app using an mp3 file. Before the app was finished building, Android Studio prompted me to associate the file type of the mp3 to a raw file. Basically asking me what type of file this is (of course, it is an mp3). I had accidentally clicked on "Kotlin" from the choice board and now my mp3 file is being read as a Kotlin file from the res\raw directory. I have no idea what I did.

Please specify value for '' explicitly Here I am again, struggling with kotlin. Background: I am trying at the moment to upgrade an existing API to Java 17 and Kotlin 1.6.10. But after building the project now, I got following error: Caused by: java.lang.IllegalStateException: Usage of default value argument for this annotation is not yet possible. Please specify value for 'DelimitedEnumSet.delimiter' explicitly I am pretty sure the error must be somewhere here: @JsonQualifier @Retention(AnnotationRetention.RUNTIME) internal...

Drop or convert copied value when copying row to another table I'm migrating a database. One of my columns types is changing from TEXT to an INTEGER. My strategy is to rename the old table and create a new one, then insert the rows of the old table into the new one. Supposing my new table is something like this: CREATE TABLE Item ( id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, count INTEGER NOT NULL DEFAULT '0' ) My code for transferring the data might look like this: INSERT INTO Item (id, count) SELECT id, count FROM old_Item I originally...

How to set seekbar unmovable using kotlin? How to set seekbar widget unmovable using kotlin language in android studio?

Share Intent from native android app to flutter app not working when flutter app is in foreground I want to send data with intent from native android app to flutter app, So if flutter app is closed below code working fine to fetch intent data in main.dart file. If flutter app is in foreground and i tries to send data from native app to flutter app nothing happens. Is their anything else to need implement for this case? Native app code to start flutter app var intent = getPackageManager().getLaunchIntentForPackage("com.flutterapp"); intent.putString( "MapParams", jsonObj.toString())...

Call function inside LiveData observer only once if the updated value is the same I am building a facial recognition system that i want to be automatic. I use live data to observe for change in bitmap from the camera preview, if the change has a face in it I check with users in my database and compare the facial features, if a match is found I record the time the user checked in. The problem is that that request is sent severally since the bitmap is still updating the live data that I am observing to trigger the comparison function. Is there a way to ensure that the...

How to create a map from an array I have an array of Strings in which each element represents a relationship. I want to pass it to a Map, because it is the logical structure to handle the represented information. Following these instructions I can do it How do I create a map from 2 arrays? fun main() { val arrayRules = arrayOf("CH -> B", "HH -> N", "CB -> H", "NH -> C", "MP -> C", "CH -> B", "NH -> C", "NN -> C", "BH ->...

Firestoring Paging Adapter Crashes when switching fragments during loading state i have an application i am working on, i have initialized my firestore paging adapter using firestore ui paging library, everything works fine, but whenever i load my fragment, and firestore is still fetching data and i try switching to another fragment, my app crashes, giving me this error. E/AndroidRuntime: FATAL EXCEPTION: RxCachedThreadScheduler-1 Process: com.simon.trepamobileadmin, PID: 12390 io.reactivex.rxjava3.exceptions.UndeliverableException: The exception could not be delivered to...

Your project requires a newer version of the Kotlin Gradle plugin. (Android Studio) I've just updated my flutter project packages to be null-safety compliant and now Android Studio wants me to update my project to use the latest version of Kotling Gradle Plugin. Can't see where to change this though. I have tried to change "org.jetbrains.kotlinkotlin stdlib jdk7$kotlin_version" into "org.jetbrains.kotlinkotlin stdlib jdk71.6.10" but this has no effect. My build.grade-file looks like this: def localProperties = new Properties() def localPropertiesFile =...

Parse JSON without data class in Kotlin? There are many JSON parsers in Kotlin like Forge, Gson, JSON, Jackson... But they deserialize the JSON to a data class, meaning it's needed to define a data class with the properties corresponding to the JSON, and this for every JSON which has a different structure. But what if you don't want to define a data class for every JSON you could have to parse? I'd like to have a parser which wouldn't use data classes, for example it could be something like: val jsonstring = '{"a": "b", "c": {"d:...

FATAL EXCEPTION Error inflating class androidx.fragment.app.FragmentContainerView I am facing this issue and can't figure out the solution read multiple solutions in stackoverflow but non of them worked. I have created a module named authentication and selected the module type Phone and Tablet and I created some activities and fragments there. now when my app starts I want to start the authentication module startup activity and it showed me these errors. Note: I also changed the com.android.application to com.android.library, but still it does not worked. XML of the...

Android Bumblebee NavController drawer menu corrupted After upgrade do Android Studio Bumblebee and Graddle 7.2 (i belive) and navigation-safe-args-gradle-plugin:2.5.0-alpha01 my navigation component went crazy. When I open a fragment from option menu it works fine, but when I open fragment from drawer then it somehow "overrides" bottom menu and I cannot open fragment from bottom menu on which I opened fragment from drawer. To "unlock" bottom menu I have to use back arrow, and only after that the fragment from bottom menu can be reopened. I...

Exposed select query adds package name I'm very new to Kotlin and Exposed and might be missing something. When doing a select query, I get the package name in the list of resultRows. Example: Table definition object ScoreTable: IntIdTable() { val average_score: Column = float("average_score") val context_id: Column = varchar("context_id", 255) val user_id: Column = varchar("context_id", 255) } Statement val score = transaction { ScoreTable.select { ScoreTable.context_id eq "some-context"...

Apply two different regex with two different messages I need to apply two different regular expressions, one for only English letters and numbers are allowed, and the other for some special chars are allowed. I need to show different messages( for example if the user enter Arabic chars I need to show a message and if the user enter not allowed char I need to show a different message) I'm using kotlin

How to use an API wrapper in Kotlin? I'm a rookie Kotlin developer here and been wanting to learn more about API wrappers so found this wrapper for RAWG.io but can't figure out what the problem is. GlobalScope.launch { val service = RawgServiceApi.create() val result = service.getDetailsOfGame(id = "1") //RawgApiResult val data = result.data; //RawgData class val list = data.result // List list of games Number of results to return per page.(default 20) // Page size can be specified more about all option...

Subclass Parameter Name Overriding Superclass Val Experienced with Java, but fairly new to Kotlin. When the subclass param has same name as a superclass val... Android Studio does not throw validation error stating need for @Override annotation. However, attempting to access name from within Business references the param name rather than the superclass val (which feels like an override to me). class Business( val name: String ) { // ... } class FirstBusiness(name: String) : Business(name) { val test = name; // name referencing...

API data inconsistently binding to Buttons using View Binding I am using View Binding. The API call works, I have a print statement proving that I am receiving data properly, only the binding isn't working consistently. Once I receive a response from the API, I parse it (proven working), and apply the text on buttons. For some reason, it works a few times at the start, then stops working for a bit, then works again. I am testing it by repeatedly opening and closing the fragment once it is done loading (or doesn't load after 10-15 seconds after the...

Could not read/display data from Firestore Database to Nested Recyclerview, Android Kotlin I'm facing difficulty in displaying set of data from Firebase Firestore database to Nested Recyclerview, only the last set of data from firestore is showing in the nested recyclerview. Referring to Image1, the green box shows the last set of data which is read and displayed into recyclerview whereas red box showing no data but have stored data in database.. <a href=""...

Making an app in Kotlin that is a very simplified ecommerce/quiz style app I want to make a very simple app in Kotlin of an app where the app has 5 pages for example. Each page has multiple choices for items. These items are tallied together at the end of the buttons being selected and added up. What I'm trying to make is an app that displays how much I charge for video editing/photo editing etc... I've found tutorials on making quizzes which is a similar style I'm looking to do, but I don't know how to carry over to new pages within the app, how to tally them...

Formatting ZonedDateTime causing one year jump [duplicate] When I run this Kotlin snippet: val t = ZonedDateTime.of(2021, 12, 25, 0, 0, 0, 0, ZoneId.of("UTC")) val s = DateTimeFormatter.ofPattern("YYYY-MM-dd HHmmss").format(t) println(s) It prints out 2021-12-25 000000 After incrementing dayOfMonth from 25 to 26: val t = ZonedDateTime.of(2021, 12, 26, 0, 0, 0, 0, ZoneId.of("UTC")) val s = DateTimeFormatter.ofPattern("YYYY-MM-dd HHmmss").format(t) println(s) It prints out 2022-12-26 000000. The year has jumped from 2021 to 2022 when...

How to get a value from a field inside an nested class? I'm trying to get a value of a field from inside a nested class in Kotlin, however, I'm having some difficulties with the logic. Somewhere I saw that it is possible through an interface, but I don't know where to start. A simple sample: class ExternalClass { class InternalClass { val internalValue = 2 } val externalValue = InternalClass().internalValue } fun main(args: Array) { print(ExternalClass().externalValue) } The easiest way (and most obvious)...

Kotlin Abstract Val Is Null When Accessed In Init Before Override In Kotlin, accessing an abstract val in an init block causes a NullPointerException since the field is overridden by an extending class after the super class's init block executes. The ideal solution would be a way to declare some code/function to execute after the object is fully created. I can only think of creating a fun initialize() and manually calling it, which is bad because it's not guaranteed to be called. An automatic solution is to use Kotlin coroutines to wait until a field is not...

List Adapter Diff Util not updating the List Item in Recyclerview List Adapter diffutil not updating the list item in recyclerview. It works when I add or remove a item from the list. But not updating the any particular value like isSelected : Boolean = false in object class How to update the recyclerview view when one of the object class in list is changed like value Boolean changes in one object class Thankyou

SetAlarmClock not showing alarm in notification According to the docs: The expectation is that when this alarm triggers, the application will further wake up the device to tell the user about the alarm -- turning on the screen, playing a sound, vibrating, etc. As such, the system will typically also use the information supplied here to tell the user about this upcoming alarm if appropriate. <a...

How to properly select and deselect items in recycler view? I am very beginner to Android Kotlin, i am developing a practice app which requires selected data from recycler view to be in an arraylist. selection works fine until i change my spinner value and items get reloaded, once items get reloaded it take two clicks to deselect but is still not removed from the selected data arrayList. (whenever spinner value is changed, data is loaded from API). i know this code is messy and has lot of unnecessary stuff, if someone could help me with how to clean...

unable to fetch data using mvvm in kotlin class DiscoverFragment : Fragment() { lateinit var adapter:AdapterClass lateinit var viewModel:MainViewmodel lateinit var repository: DataRepository lateinit var dataDao: FoodDao private var List = mutableListOf() private var foodList= mutableListOf() override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) arguments?.let { } } override fun onCreateView( inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle? ): View?...

FragmentContainerView as the navigation view in DrawerLayout I have a fragment that I sometimes want to display as a full screen and sometimes as the contents of the burger menu. I have setup an activity with a burger menu like so: .... activity UI here The WhateverFragment has a RecyclerView and in each item I add a OnClickListener. When presented as a fragment of full screen activity that listener is invoked. However, when i tap anywhere in my 'drawer' then it simply closes and my onclicklistener is not invoked in my fragment. What...

check if data exists realtime database, kotlin I have a text field that will be filled by voice, my drawback is that I need the string that is in that field to be searched in the database and verify if it exists, if it is the case, it gives me the associated information in different variables . fun verificarBase(identificar:String){ val ref =...

Relation between Arrow suspend functions and monad comprehension I am new to Arrow and try to establish my mental model of how its effects system works; in particular, how it leverages Kotlin's suspend system. My very vague understanding is as follows; if would be great if someone could confirm, clarify, or correct it: Because Kotlin does not support higher-kinded types, implementing applicatives and monads as type classes is cumbersome. Instead, arrow derives its monad functionality (bind and return) for all of Arrow's monadic types from the continuation...

Android Jetpack Compose (Composable) Get String resources from Coroutine I have a Flow that wraps a sealed class, which is used for calling messages to the UI. For example to show a Snackbar. I can observe the Flow from a Composable using LaunchedEffect. But the problem is that I want to retrieve the string resources from the coroutine scope. And I don't want to use direct string value in my view model, since I want to use the Locale for different languages so I pass the String Res Id instead. So is there a good way of doing it without putting the string resources...