Decoding JSON to a class based on the value of another JSON key I am trying to work with a REST API that returns a JSON document who's structure depends on the value of a property named type. I have defined the main class as follows: @Serializable class Interaction( val type: Byte, val data: InteractionData? = null ) The structure of InteractionData depends on the value of type. This is currently an interface that the four possible structures inherit from. If type equals 2, data should be a class named ApplicationCommandData: @Serializable class...

How to remove clipboard from keyboard when open it on my edittext in kotlin I want to remove clipboard option from keyboard when click on my edittext so that can't paste data from third party apps. I have gone through multiple links as below: For clear all clip: Clear ALL clipboard entries For disable copy/paste: <a href="https://stackoverflow.com/questions/26175041/android-how-to-totally-disable-copy-and-paste-function-in-edittext">Android: How to TOTALLY disable copy and paste...

sorting of arraylist in kotlin for recyclerview i am giving app name ,icon,package name,hour,mint,sec to an array my major problem is i want to sort this array accoriding to most used app appInfoList.add(AppInfo(appName, appIcon, packageName, hour, mint, sec)) appInfoList.sortBy { it.mint } it didnt sort an array

ImageBitmap to canvas using Glide/Coil I'm using a @Composable where I need to pass via parameter an ImageBitmap, the problem is that I get the images from the server given an url so I need to load these images, convert them into a Bitmap and then to a ImageBitmap but I'm quite stuck because I don't know how to convert this to an ImageBitmap, this is my @Composable @ExperimentalComposeUiApi @Composable fun MyCanvas( myImage: ImageBitmap, modifier: Modifier = Modifier, ) { Canvas(modifier = modifier...

How to create custom VideoFrameDecoder for coil image library in compose I'm using this solution to load video frame from network url in jetpack compose. However, I want to use coil's video support and implement VideoFrameDecoder as my AWS S3 url <a...

Can I smartCast within the when statement? I have the code below class Sample { var variable1: SomeClass? = null var variable2: SomeClass? = null var variable3: SomeClass? = null fun checkVariable() { when { variable1 != null -> variable1!!.doSomething() variable2 != null -> variable2!!.doSomething() variable3 != null -> variable3!!.doSomething() } } } I'm hoping I can make variableX after the -> non-nullable, so I don't need to !!. I can avoid !! with variable1 !== null ->...

How can I write alert dialog in my kotlin-compose project? I'm trying to make a dictionary app. There is a dictionary room database where users create their own dictionaries. I show the dictionaries added by the users on the screen and I want the users to delete these dictionaries whenever they want. But I've been working on this for a while and there's a problem.I made the alert dialog myself, but when the user click yes, that is, when user wants to delete it, it does not delete the dictionary, but when the alert dialog is opened for the second...

Kotlin, covert timer activity into a fragment, encountering some errors - Type mismatch. Required: Context! Found: fragment I have a timer activity. That works great. Now i want to convert that timer into a fragment so I can use it inside a tabLayout. Now I get some errors inside my PrefUtilStartTimerFrag. With all the "context" I get the error: Type mismatch. Required: Context! Found: TabStartTimerFragment First, this is my Timer fragment Kotlin file: import android.media.MediaPlayer import android.os.Bundle import android.os.CountDownTimer import androidx.fragment.app.Fragment import android.view.LayoutInflater...

Idiomatic way to control files downloads using kotlin coroutines? i need advice. There is some file downloader. I wont to manage each download (cancel, enqueue etc.). I made something like this: class DownloadsScheduler( private val downloadsQueue: DownloadsQueue, private val downloader: Downloader, ) { private var _scope: CoroutineScope? = null private val scope: CoroutineScope get() = _scope ?: error("not initialized") private val jobs = ConcurrentHashMap() fun startIn(scope: CoroutineScope) { check(_scope == null) { "Already...

How to programatically change style of CollapsingToolbar from large to small in material 3? I tried checking public function but could not find any function to set style programatically.

ActivityThread.java line 4008 android.app.ActivityThread.performResumeActivity Crash Reason And Solution Starting from a week ago, in the application some of my users had this crash. This is the detail log of the crash: Fatal Exception: java.lang.RuntimeException Unable to resume activity {com.myapp/com.myapp.ui.layout.modules.intro.activities.ActivitySplash}: java.lang.IllegalArgumentException android.app.ActivityThread.performResumeActivity (ActivityThread.java:4016) com.android.internal.os.ZygoteInit.main (ZygoteInit.java:965) Caused by java.lang.IllegalArgumentException...

Handle Media Buttons Click from headphones I have this code that Plays and pauses music on the button Click. mediaSession.setCallback(object : MediaSessionCompat.Callback() { override fun onMediaButtonEvent(mediaButtonEvent: Intent?): Boolean { if (MusicInterface.isPlaying) { //pause music MusicInterface.binding.interfacePlay.setImageResource(R.drawable.play) MusicInterface.isPlaying = false...

Liquibase CLI cannot execute custom changes written in Kotlin We write our custom changes in Kotlin. But we cannot execute these custom changes using the Liquibase CLI, because the kotlin-stdlib is missing from the classpath. Here's my liquibase.properties file: changelog-file:db/changelog.yaml driver:org.postgresql.Driver urljdbcpostgresql://localhost:5432/project username:postgres password:postgres classpathbuild/classes/kotlin/mainsrc/main/resources includeSystemClasspath:true In src/main/resources we keep the changelog.yaml and the changesets,...

IntelliJ shows old error after recompiling code I am very new to kotlin, kotlinJS and IntelliJ as an IDE. I have this fairly simple code which produces a website with just one line of text. In it, I deliberatly provoke an error to see, how IntelliJ tells me something is wrong. fun main() { val container: Element = document.getElementById("root") ?: error("No container here!") createRoot(container).render(Fragment.create { h4 { //...

Exoplayer within AndroidView not switching video when setting a new MediaItem on the fly So I got declared an exoplayer2 inside a composable function like this: DisposableEffect( AndroidView( modifier = Modifier .weight(3f) .fillMaxSize() .clip(RoundedCornerShape(RoundedSizeStatic.Medium)) .shadow( elevation = 4.dp, shape = RoundedCornerShape(RoundedSizeStatic.Medium), spotColor = Color.White, ambientColor =...

How to turn on bluetooth programmatically with activity contracts? As the question says, i want to turn on bluetooth programmatically. I have search how to do it and in almost every site says that you have to do it like this: val bluetoothManager = requireContext().getSystemService(Context.BLUETOOTH_SERVICE) as BluetoothManager val bAdapter= bluetoothManager.getAdapter() if (bAdapter == null) { Toast.makeText(context, "Bluetooth Not Supported", Toast.LENGTH_SHORT).show() } else { if (!bAdapter.isEnabled) { if...

window dialog not closing I have a Dialog that I cant close when I press the button this is my code, I believe that is for the if cycle, but I need it to make it true under those circumstances, any idea that could help me here? fun PopupWindowDialog( parentUiState: ParentHomeUiState, ) { val openDialog = remember { mutableStateOf(false) } var sliderPosition by remember { mutableStateOf(0f) } if (!parentUiState.showInAppFeedback){ openDialog.value = true } val recommend =...

Kotlin: Hashmap of interface methods by the implementing class name I have a list of clases that implement a specific interface. The ability to construct those clases or not is not static (so it's not possible to use when(className)), and can be configured so I want to be able to create some clases or call some methods based on a hashMap of allowed "constructors". Then if the key identifying a class is in the hashmap I can call the corresponding method, otherwise I can safely ignore. Let me illustrate: Let's say I have an interface like interface Instanceable...

How to configure testcontainers to run docker with gradle? For my project I need to have a task that starts a test container, but when I am trying to start my task I have the following error Previous attempts to find a Docker environment failed. Will not retry. Please see logs and check configuration I think it's a configuration issue. I am using kotlin gradle, my build file looks like this : import org.testcontainers.containers.PostgreSQLContainer repositories { mavenCentral() mavenLocal() } dependencies {...

Calculating the results of a review [closed] Background During review of a document different stakeholders take part and perform their evaluations. There are different means to report the results. In a complex review the results from each stakeholder and document are to be summarized. Assume that in a review 3 documents will be reviewed, there ae 5 reviewers who will do the review. For each document, each reviewer can express review result as N (Not up to the mark), P (Partially Ok), F (Fully Ok). For each document, maximum result will...

program crashes in android studio while writing funtion with loops i got problem in mainActivity.kt program starts perfectly but after i click any button(which needs check() function) program stops respoding and it closes i have created wincombination with mutable list. and firtsplayer and secondplayer. var firstPlayer = ArrayList() var secondPlayer = ArrayList() private val wincombination = listOf( listOf(1,2,3), listOf(4,5,6), listOf(7,8,9), listOf(1,4,7), listOf(2,5,8), listOf(3,6,9), listOf(1,5,9), listOf(3,5,7) ) after play game firstplayer and...

Provide arguments to framework at runtime I'm creating a framework with showcase composables of core functionalities (in this case some ecommerce product lists, categories etc.). The main point is that we will just need to swap the url of the client and maybe add an interceptor (in this case I apollo graphql but in retrofit it would be the same) and we will be able to use these composables with loaded data. Here's the problem: Since I'll probably want to use hilt how do I pass the url and/or interceptors to the framework? I thought...

what is the default text color code in night theme? I didn't change text color for the rest of my code but one edit-text. so the text color of the rest of the code is automatically changed when night theme switches but that one I changed manually doesn't. I want to give my edit-text the same color so that it doesn't look different from the rest of my code.

How to use RegEx in InputFilter? I need to filter my EditText by accepting the text with the following criteria: The input should accept a max of 4 numbers before the decimal separator and 3 after the decimal separator so all values like (1, 232.12, 9999.999) should be accepted. I've created a RegEx for it in regex101.com and it looks like this: /((?![,])[0-9]{0,4}+(([,])[0-9]{0,3})?)/ While my InputFilter looks like this: class DecimalDigitsInputFilter : InputFilter { private var pattern: Pattern =...

call a fragment from another class\function kotlin GameActivity ____FragmentQuest ____FragmentFight class MapLvl.kt class MapLvl fills with the content of FightFragment I need to change QuestFragment from classLvl to FightFragment. how to do it? it doesn't work: class MapLvl.kt: class MapLevels(){ fun changeLvl (bind: FragmentQuestBinding,hero: Hero, activity: GameActivity,db: Maindb) { when (hero.mapLvl) { 1 -> MapLevels().mapLevel1(bind, activity, hero, db) 2 -> MapLevels().mapLevel2(bind, activity, hero,db)...

Test koin in ktor application Hi im trying to write ktor testcases with koin dependency injection and in the tutorial im watching the person uses witTestApplication(moduleFunction = {install(Routing)}). Though withTestApplication is deprecated and so the moduleFunction part does not work with the new testApplication() setup what should i do instead is my question? this is the tutorial im watching <a href="" rel="nofollow...

MotionLayout progress jumps from 0 to 1 i´m new with MotionLayout and im having trouble to understand where the problem that i have come from. I have 2 recyclerviews in a motionlayout, one horizontal and one vertical. I couldn´t make the animation work when i was scrolling vertically the horizontal recycler, i solved that putting that recycler in a nestedScrollView, but now the progress seems to jump from 0 to 1 directly. Anyone knows whats going on? FRAGMENT...

I want my android app to send an email automatically without an intent (Kotlin!) Hello I want to send an email from my android app without using intent, startActivity etc. Is there any way to do it? I can hardly find any piece of codes in kotlin and everywhere they use intent. I only found this: https://github.com/1902shubh/SendMail. If I try to implement this solution in the following way: root level gradle buildscript { ext { compose_version = '1.3.0' } repositories {...

return type string conflicts with function working here is my code: class AddScenarioFragment : Fragment() { private lateinit var binding:FragmentAddScenarioBinding private val arraylist = ArrayList() @RequiresApi(Build.VERSION_CODES.M) override fun onCreateView( inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle? ): View? { binding = DataBindingUtil.inflate(inflater, R.layout.fragment_add_scenario, container, false) daysBg(binding.tvDayMon)...

How to get base64 encoded SHA-256 hash cert I need to get base64 encoded SHA-256 hash to do certificate pin val certPinner = CertificatePinner.Builder() .add("hostName", "sha256/ASDfFgggg7YQB0Xt7Q5WZL5jhiRaXnPrjO/KwGh0G5g=") .build() I usually get the String (after sha256/) through gitBash, but now I get a new cert and the public key is ECC (256 bits). Is anybody know is there any other way that I can get base64 encoded SHA-256 hash cert? Thanks. When I try to get the String though gitBash, it showed error like this bash:...