Passing method as parameter in Kotlin function issue Which is cost effective process to pass method in kotlin function or call it using object? Need help regarding cost issues.

How to create slider image with incaditor as a list of images on Android I need to do this UI same this image as below: Currently I don't know how to create it. I need some examples or some existing library or some keywords to refer to, so anyone who has created a layout like this can help me suggest them.

Kotlin and Mongodb I am currently trying to learn how I can connect an kotlin compose app to mongoDb cloud. Normally I would not ask this but is there any information on how to do this? I can not find a lot of sources regarding this topic unfortunately. My goal is pretty simple: A person saves some sort of information (eg. Age) on a compose app and it saves in a cloud database in mongoDb. Appreciate anyone willing to give a bit of information on this topic! Thanks!

In Jetpack compose Where to create ViewModel if i don't use Fragment or Activity I'm using Stream Chat SDK for my e-commerce app. At Stream Chat's documentation they are using Activity and they can easily declare their default viewmodel by using viewModels delegation like that : TL;DR: How to create viewModel in a composable like the way we do in Activity or Fragments like this : val channelListViewModel: ChannelListViewModel by viewModels { ... } override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) // Your ViewModel instance...

Discord4j Kotlin, how to edit message with embed in it? how do I edit a sent message that has an embed in it? I send the message like this: fun sendBuildEmbed(buildData: BuildData, gateway: GatewayDiscordClient, embed: EmbedCreateSpec, channelId: String) = reportBotError { gateway.getChannelById(Snowflake.of(channelId)) .ofType(GuildMessageChannel::class.java) .flatMap { channel -> channel.createMessage(embed) } .map { message -> buildMessages[buildData.buildNumber] = message } .subscribe() } How would I edit...

Ktor OAuth, cant set User session when I have token So im trying to set up a OAuth way of logging in my Ktor program. Quite new to Kotlin and Ktor so I am having a hard time. I am able to create a token and I get sent to the "get("/callback")" part of the plugin generated code. But as i try to run the line call.sessions.set(UserSession(principal!!.state!!, principal.accessToken)) I get "Session data for type

class com.example.plugins.UserSession

was not registered" I have tried to understand what is going wrong but at this point I have no...

Retrofit and GET using parameter I want to create a service API with a GET method for filtering data. I created this API using Strapi.io. The Strapi documentation requires using $containsi to perform data filters. I want to replace the forest value with a dynamic value inputted via editText. How do I do that? This is my ApiService @GET("destinations?populate=*&filters[name][\$containsi]={name}") fun getSearchList(@Path("name") name : String) : Call And this is code for my activity. val et_text =...

Object is not abstract and does not implement abstract member public abstract fun onPermissionsChecked(p0: Object is not abstract and does not implement abstract member public abstract fun onPermissionsChecked(p0: MultiplePermissionsReport!): Unit defined in com.karumi.dexter.listener.multi.MultiplePermissionsListener Unresolved reference: areAllPermissionsGranted Unresolved reference: isAnyPermissionPermanentlyDenied public fun requestPermissions() { Dexter.withActivity(this)...

Cannot draw corners round enough The rounded Rectangles created with the same height and corner radius, but it seems that the x radius became longer and longer as the rectangle became wider. The orners are not curves as I expected (blue stroke one). Did I miss something on setting the canvas? canvas.save() canvas.translate(body.position.x * mDpm, body.position.y * mDpm) canvas.scale(bw * mDpm, bh * mDpm) canvas.rotate(getScreenRotate(body.angle)) mPaint.style = Paint.Style.FILL mPaint.color =...

MPAndroidChart BarChart - ValueFormatter is not applied I use MPAndroid to use Group Bar chart. I create ValueFormatter. val StepValueFormatter = object : ValueFormatter() { override fun getFormattedValue( value: Float, entry: Entry?, dataSetIndex: Int, viewPortHandler: ViewPortHandler? ): String { var oneText = value.toInt() * 1000 var decimal = DecimalFormat("#,###") var twoText = decimal.format(oneText) return "${twoText} 걸음" } } And I applied this ValueFormatter to...

Set action after delay Kotlin Im trying to refresh my Fragment with task after a period of time. I've tried this val executorService = Executors.newSingleThreadScheduledExecutor() executorService.scheduleAtFixedRate( { dailyRefresh() }, 0, 10, TimeUnit.SECONDS) This is placed within onViewCreated function. the dailyRefresh function private fun dailyRefresh(){ reloadFragment() createChannel() addNotification() } I wanted to test if the fragment updates and sends...

Difficulty in understanding Kotlin Coroutine output fun main() { println("Start of program") GlobalScope.launch{ println("Starting coroutine") val result = someOperation() println("Coroutine Running thread is: ${Thread.currentThread().name}") println("Coroutine completed with result: $result") println("End of the coroutine function") } println("End of program") } suspend fun someOperation(): String { //This is a coroutine now (Due to suspend modifier). delay(3000) // long-running...

What is a good pattern to share a custom dispatcher for Exposed in KTor With Koin I've been a huge Kotlin fan for a long time, but generally have only used it as a Java-replacement, ie with traditional Java libraries & frameworks like Spring. I'm currently going down the rabbit hole of exploring "pure kotlin" solutions to everything. Part of that is doing a little practice project using KTor, Koin, and Exposed. I love the non-blocking behavior of Kotlin Coroutines, but obviously Exposed using purely blocking APIs under the surface. Since database operations are limited by...

Been developing mobile apps with android studio 32 version but my enumerator can only display a blue screen after split view [closed] Android studio can't show up the white screen ebumerator. I have been developing simple apps and it was ok though when i tied to launch a portal, well, some how the white screen is not visible except the blue one I tried to start a new activity and its still the same. Tried to relaunch enumerator using andoid toolswindow but nothing different.

Databinding EditText.setText() doesn't work I know that question were asked several times, but I can't get it working. EditText not gonna filled in onCreate(), onResume(), onPostResume(). override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) binding = ActivityLoginBinding.inflate(layoutInflater) setContentView(binding.root) account = "XXXX" binding.etAccount.setText(account) //doesn't work binding.btnLogin.setOnClickListener { binding.etAccount.setText(account)...

Spring webflux server run issue I downloaded a backend server project from github, and the problem is, that after running SpringBoot App, i see Spring logo in terminal, and after this "Process finished with exit code 0". I've got webflux dependency already in build.gradle. But the server isn't running, any ideas where to look for bug, or what am I doing wrong?

Kotlin: syntax sugar for function delegation? Lets suppose I have this function: fun foo(a: A, b: B): C { ... } Now, we have a class with a factory method: class Foo { fun createC(a: A, b: B) = foo(a,b) } Does Kotlin have any kind of syntax sugar that would allow me to specify the above class without repeating the arguments for the function: class Foo { fun createC = ::foo } ?

Json: How do I determine if a field exists? Using kotlin-serialization, the process of obtaining JSON data from openweathermap is implemented. The field may or may not be present on any given day, such as rain or snow. An error occurs when executing the following code WeatherResponse.kt @SerialName("WeatherData") @Serializable data class WeatherResponse( val list: List ) @SerialName("WeatherEntry") @Serializable data class WeatherEntry( val main: MainData, val weather: List, val wind: Wind, val pop: Double, val...

Screen orientation = "portrait" works on most devices but not on OnePlus 11 device with OxygenOS There are a lot questions about screen orientation. This one is a specific question for OxygenOS (on f.i. a OnePlus 11). Using: android:screenOrientation="portrait" makes that rotation of the screen doesn't change the layout of the app. It works on 99% of the devices, but not for OxygenOS on f.i. a OnePlus 11. I tried: android:screenOrientation="locked" and: android:screenOrientation="nosensor" but somehow OxygenOS ingnores the above. Does anyone recognize this issue and also has a...

Problem with query execution time in mongo with spring data I have a problem with too long response time with find query. This is quite strange because if I run the query myself (e.g. via the dataGrip / Intellij driver) the response time is about 500-700 ms, and when it is performed by an service that uses spring data mongo, the response time is from 33000 ms to 45000 ms. Not only the time is different - but verifying the query more specifically using.explain(“executionStats”) - the number of keysExamined and docsExamined. This is the query:...

Getting error in DAO while trying to display some data from the database After changed my code, to use the Flow, I've tried to log base currency from the database. Unofrtunately, I've got this error: error: The columns returned by the query does not have the fields [id] in ... even though they are annotated as non-null or primitive. Columns returned by the query: [base] Which occurs here, in the DAO interface: @Query("SELECT base from base_currency") fun getBaseCurrency(): Flow This is my model class: @Entity(tableName = "base_currency") data class...

How to get UUID for Android to HC-05 Bluetooth connection I am attempting to create an Android app that will connect to an HC-05 Bluetooth module connected to an Arduino Uno. I have been using example code as the base for my project so I am lacking complete understanding of the code. My code uses the UUID and I am wondering where you get that from. Is it from the Android phone, HC-05, or the Arduino Uno? How do you go about finding this? I have tried looking online but have not found an answer which works for me. Any help would be greatly appreciated.

How to use Calendar to print a yearly Calendar in Kotlin console? So, I'm learning Kotlin and I want to know how can I print a yearly calendar like this in the console using Kotlin: Su Mo Tu We Th Fr Sa - - - - 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 - My goal is to print a calendar like this for each month of a selected year (by input). I've been trying to use GregorianCalendar and java util but I don't understand how to get it to work. I've been making some...

How to convert a python function to kotlin I am trying to convert code from python to kotlin. Don't know how to write this solution to be in Kotlin: error=sum(int(parity_list) * (2 ** i) for i, parity_list in enumerate(parity_list[::-1])) This is what it looks like in python # coding=windows-1251 from traceback import print_tb print('Введите полученный код Хэмминга') d=input() data=list(d) data.reverse() c,ch,j,r,error,h,parity_list,h_copy=0,0,0,0,0,[],[],[] for k in range(0,len(data)): p=(2**c)...

How to handle program error inside of ViewModel which is using sealed class with states? Trying my best to understand StateFlow, and States. According to the android documentation, we have this piece of code: class LatestNewsViewModel( private val newsRepository: NewsRepository ) : ViewModel() { // Backing property to avoid state updates from other classes private val _uiState = MutableStateFlow(LatestNewsUiState.Success(emptyList())) // The UI collects from this StateFlow to get its state updates val uiState: StateFlow = _uiState init {...

I can't change the text of textView from a DialogFragment I'm facing this problem and don't have any idea how to solve it. It works inside the dialog class, but not in the activity class. I tried all i found about this problem: creating the setter method, invoking the method after showing the dialog, the id is correct so idk. This is the dialog class: class CustomDialogFragment: DialogFragment() { private lateinit var textView: TextView override fun onCreateView( inflater: LayoutInflater, container: ViewGroup?,...

Kotlin inspection messages I am learning Kotlin. and I am working on fundamentals. let's consider the code in the screenshot: I am having really a hard time reading the message it is displaying and comprehending it. 1: I know it is related to the need to having a total order between the elements of the array so that it would make sense to use binary search. 2:I also know that if I use an IntArray, I don't need to specify the comparator since...

How to draw image at particular position in jetpack compose I want to draw image at specific X position where white arc ends. I draw arc with the help of this answer. Now I want to draw image above the arc. I tried this answer to draw the image, but there is no option to draw image at specific X position. So I tried something but nothing works, can you please guide me where I am wrong? @Composable fun DrawProgressBar() { val...

Make ModalBottomSheet take content height as height parameter I use Accompanist Material Navigator and I want to make my modalBottomSheet measure exactly the size of his content. The problem is that when in certain device the modalBottomSheet take more than 50% of the height, the ModalBottomSheet goes in the center of the device like this (Proof on the bottom). If you can resolve this i will be very happy ! Thank's you !

DropDown Menu reopens when its already open this is my code @Composable fun MyComponent() { val items = listOf("Option 1", "Option 2", "Option 3") var selectedIndex by remember { mutableStateOf(0) } var expanded by remember { mutableStateOf(false) } Column { IconButton(onClick = { expanded = !expanded }) { Icon(Icons.Default.MoreVert, contentDescription = "Menu") } DropdownMenu( expanded = expanded, onDismissRequest = { expanded = false }, modifier...