Difference between Java and Kotlin for-loop syntax I recently started learning Kotlin and for-loop syntax of Kotlin is different from Java. **How would I duplicate the following Java for loop in Kotlin? ** void funa(int a){ for(int i = 0; a >= 1024; i++){ a /= 1024; } System.out.println("val " + a + " stesps " + i) } I know i can do something like this fun funa(a: Long){ var b = a var i = 0; while (b>= 1024){ b /= 1024 i++ } } but it looks realy stupid

Absolutely position an element inside a Column in Jetpack Compose I'm trying to create a calendar day view, like this (only take a look at a single day column): Here's my approach: Draw a LazyColumn that renders the hours Draw the event blocks and position them absolutely Unfortunately I can't get this to run and couldn't find much information on this topic either. I managed to position the event block absolutely to the correct spot, but only with Column and the event block itself...

Correct way to handle circular reference problem in kotlin I'm trying to build a simple json parser and below is my JSON type representation with a sealed class sealed interface JValue { data class JString(val value: String): JValue data class JNumber(val value: Float): JValue data class JBool(val value: Boolean): JValue data object JNull: JValue data class JObject(val value: Map): JValue data class JArray(val value: List): JValue } val jValueArr: JValue = getJArrayValue() val jValueString: JValue = JValue.JString("Test") val...

Circular dependency between Gradle tasks when setting up classes to perform bytecode modifications during build I want to write a Gradle task that is executed during build, which will invoke a Java class that performs bytecode modifications based on logic using the ASM library. But I'm getting this error when running build task: Circular dependency between the following tasks: :classes \--- :compileJava \--- :modifyBytecode \--- :classes (*) How can I avoid this error? build.gradle.kts: dependencies { .. implementation("org.ow2.asmasm9.2") .. } tasks.register("modifyBytecode")...

MediaRecorder stop() function fails class MainActivity : AppCompatActivity() { // Thread handlers for Camera2 API threads lateinit var handler: Handler lateinit var handlerThread: HandlerThread lateinit var backgroundHandler: Handler lateinit var backgroundHandlerThread: HandlerThread // Camera display and management objects lateinit var cameraManager : CameraManager lateinit var textureView: TextureView lateinit var cameraCaptureSession: CameraCaptureSession lateinit var cameraDevice:...

Request body sent by RestTemplate is empty when compiled natively with GraalVM When I generate a native image with GraalVM using gradle bootBuildImage and run the application, the request body sent by RestTemplate is empty. If I compile the application with JVM as usual instead of GraalVM, it works fine. I don’t know why is the request body empty. Does anyone know how to solve this? Thank you. Each version is as follows, SpringBoot: 3.1.1 Kotlin: 1.8.22 Java: 17 Gradle: 8.1.1 (gradle plugin) org.graalvm.buildtools.native: 0.9.23 My Code plugins {...

Does RevenueCat's Purchases.configure() with a appUserID parameter have a Callback? One way to login in with RevenueCat with a callback is: guard let uid = Auth.auth().currentUser?.uid else { return } // iOS Purchases.configure(withAPIKey: "...myAPI_KEY...") Purchases.shared.logIn(uid) { (customerInfo, created, error) in if let error = error { return } // I'm 100% sure the user is definitely logged into RevenueCat, now do something } // Android Purchases.configure(PurchasesConfiguration.Builder(this, "...myAPI_KEY...").build())...

Flashcard in ViewPager2 was not update exactly display view I'm in a project create a flash card as card view in View pager 2 (androidx.viewpager2). The strange is if I handled display card back at item index 0 in View pager, When I next to item index 5, 10, 15 in View pager, card back was also displayed card back. (The expected is display front card if I was not handle show back card). Any idea why this issue was occurred? Thanks all! Here my card view: Here are custom Adapter:...

Builde open CV android I use the short version for open cv from the link text I want to use it instead of the open cv homepage release because it's much lighter and provides all the functionality I need. But when I try to use it, it always shows an error cmd.exe /C "cd . && C:\Users\ADMIN\AppData\Local\Android\Sdk\ndk\23.2.8568313\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe --target=aarch64-none-linux-android24...

is there any problem with android jetpack compose UI because it is going back to previous changes? I am new in jetpack compose. i created some apps for practice but whenever i update my UI and run immediately it is working fine but after 1 or 2 hours it is going automatically to it's previous changes. for example, i have 1 button in my activity and i added another button in activity if i run app immediately it is showing both button but if i run same app after 1 hour than newly added button will be gone this is happening with all new UI changes. As beginner in compose I don't know what to...

How to retry on failed Android instrumented tests? I'm searching the way to retry run failed android instrumented tests or called integration tests/ui tests. I think there could have 3 ways doing this. Retry with Jenkins stage script -> retrieve all failed tests and perform them again with run gradle command ./gradlew clean app:connectedVariantNameAndroidTest -> I didn't try this approach yet. Plugins: I tried Gordon, however its minimum Java support version is 17, which...

Tabs with different height in fragments issue I have researched this issue in Stackoverflow and encountered several posts but non had valid answers yet, unfortunately. I've implemented a standard tab layout with 2 fragments as mentioned in this post. First fragment's height is shorter than of the second fragment due to its content. Tabs switch as expected, however, the lower part of the second fragment is not displayed, although the first fragment is shown completely. If I add "android:paddingBottom="120dp"" to the layout in the first...

how to call fun from another class in xml OnClick attribute i need to run testPrint from NavbarActions.kt class NavbarActions { fun testPrint(view: View) { Log.i("check", "success") } } from activity_navbar.xml without using NavbarActivity.kt in TW

Zeroing out memory of strings from matchResult in kotlin I have a function that is part of a class in kotlin: fun doSmg(word: String) { REGEX.matchEntire(word)?.groupValues?.let { groupValues -> // Use groupValues[1] and groupValues[2] below } Do the strings, groupValues[1] and groupValues[2], still exist in memory after the function completes? If so, is there a way to clear them? I looked into using java/kotlin reflection, but I'm not sure if it even applies here.

When creating a new File, I got java.io.IOException: Operation not permitted I am trying to create a new file. Though I have got all permissions required like READ, WRITE, AND MANAGE, Still I get this operation is not permitted exception. private fun createFile(fileName: String): File { val directory = Environment.getExternalStorageDirectory() val newDir = File(directory, "Download/HeiferFeedPDF") // Specify the directory path relative to the external storage directory if (!newDir.exists()) { newDir.mkdirs() // Create all missing...

How to call https url using spring boot 3 I try to configure restTemplate to call https url in spring boot 3 but that does not compile. For this i use import org.apache.http.impl.client.HttpClients import org.apache.http.ssl.SSLContexts and the code below : fun restTemplate(): RestTemplate { val restTemplate = RestTemplate() // Load the .p12 file from the test resources directory val p12File = ClassPathResource("certs/clientErfin2.p12").file val p12Stream = FileInputStream(p12File) try {...

Kotlin Retrofit response returning null to data class I'm consuming an API service using retrofit but I'm not getting the data back from the response of Retrofit. I can see the data in the response within the logger but the data class is returning null all the time. I don't see any errors in the Logcat to give me any inclination of what's going on. My Retrofit instance and interface private val logger = HttpLoggingInterceptor().setLevel(HttpLoggingInterceptor.Level.BODY) val client = OkHttpClient.Builder() .addInterceptor(logger)...

Mapbox Journey completion how to complete entire navigation journey within 5min in mapbox turn by turn navigation in android studio I have turn by turn navigation i want my navigation or simulation to be complete within 5min. it has to complete entire journey from starting point to destination within 5min

How to implement P2P network in Kotlin / Desktop Compose? I'm creating a VTT application - a desktop/web tool for running specific tabletop game online. I'm very new to networking, but I figured out that I won't be able to afford dedicated servers to host connections of potential clients. Since I don't care about overall stability and security - we are just playing games, after all, P2P seems like an ideal choice, when one of the clients acts as a server as well. As a follow-up question, I would love it if someone advised me on how to make maybe...

Serialise json string with dynamic key to object in Kotlin I am working on a requirement, where as when making a service call to the API, if it is success, the response object will be a set of key-value in the following format: string : {string: string} For instance, the json response will be something similar like this: "content": { "data_pack_description_0": {"text": "Data only"}, "data_pack25_description_0": {"text": "Pack 25"} "buying_title_0": {"text": "Buy an item"} "buying_description_0": {"text": "This is an...

Why is authorizeRequests() allowing access to endpoints that are not mentioned vs authorizeHttpRequests() which isn't? I have been trying to migrate an application to Springboot 3 and am facing an issue regarding the use of the deprecated authorizeRequests() vs. the recommended authorizeHttpRequests() methods. Previously my config was similar to this: fun filterChain(http:Security): SecurityFilterChain { http.anonymous() .disable() .authorizeRequests() .antMatchers("/somePath1/**").hasRole("A") .antMatchers("/somePath2/**").hasRole("B")...

How to compare map and object using kotest? There is a class: data class A( var id: Long = 0, var date: String? = null, var age: Long, var sex: String? = null, var city: String? = null ) Object: val obj = A(id = 5, age = 22, sex = "male", city = "Example city") There is a map: val map = mapOf("age" to 22, "city" to "Example city") How to compare map and object using kotest? so that they are equal

How to add animation to navigation bar in material 3 using compose I'm currently working on developing an app that uses the Material 3 navigation bar. However, I've noticed that there is no stretch animation for the active indicator when an item is selected. How can add this animation? I have googled a lot but i couldnt find any information about this. Thanks for help

Could not resolve project :react-native-video. Required by: project :app > No matching configuration of project :react-native-video was found #Bug **Could not determine the dependencies of task 'appcompileDebugJavaWithJavac'. Could not resolve all task dependencies for configuration 'appdebugCompileClasspath'. Could not resolve project :react-native-video. Required by: project :app

No matching configuration of project :react-native-video was found. The consumer was configured to find a component for use during compile-time, preferably optimized for Android, as well as attribute**

#platform #Android package.json ` {...

How can I record the custom class that is extended from the SurfaceView class? I'm trying to record my custom class that is extended from the SurfaceView class. I'm using MediaRecorder for the purpose of recording. I'm trying to record my custom class that is extended from the SurfaceView class. I few classes that work together using the Camera2 API. I'm trying to create a warp scan effect in Android. Those classes together make the warp effect using the camera2 API. Now I'm trying to record that effect as it's being created through my custom class using the...

Can't list the files in the folder My code: suspend fun loadLocalSongs(context: Context) { var path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MUSIC).absolutePath path = path + File.separator + "SongsManager/" val baseFile = File(path) val test = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI Log.i("========exists", baseFile.exists().toString()) Log.i("========canread", baseFile.canRead().toString()) if (baseFile.isDirectory) {...

Autofill Service via Flutter and Kotlin like a Password-Manager I am currently working on the Flutter App which acts similarly to a Password Manager and consists of basic features such as saving passwords and using them in another app, For ex: let's say I saved my account detail for google in my app including (Mail and Password) then I go to google app and try to login but at that time my app will suggest me my saved username and password so I can just autofill my way out of this easily! I am planning to implement this using Autofill Service or Framework...

How to write to db with room framework How to write to data base such structure with room? { "Status": 200, "Result": { "10": { "name": "test1", "surname": "test2" }, "2": { "name": "tets", "surname": "test2" } } } but I need create an object from structure as: val int id; //example 10 val name; val surname;

Webview not plays video I have a function: private fun WebView.initVideo(video: String) { WebViewVideoPlayerUtils.addCookie(video, this) with(settings) { javaScriptEnabled = true domStorageEnabled = true cacheMode = WebSettings.LOAD_NO_CACHE builtInZoomControls = true allowFileAccess = true loadWithOverviewMode = true useWideViewPort = true } loadDataWithBaseURL( null, video, "text/html", "utf-8", null...

Hello how to fix this E/mple.profitfis: open libmigui.so failed! dlopen - dlopen failed: library "libmigui.so" not found helo, so I'm trying to run the application that I made, when I run it on my smartphone (psyhcal device) during the build I get an error like this E/mple.profitfis: open libmigui.so failed! dlopen - dlopen failed: library "libmigui.so" not found .the application is installed but it doesn't display the textview and also when I use the virtual device there is no error and the textview is there is there any way to fix it?