Create file format that can store video and acceleration data frame by frame Android I'm creating an Android app (using Kotlin) that can record video and other device sensory data. I want to store all of the data (the video and the acceleration sensor data) together in one file so that I can replay it the same way a regular .mp4 plays, but have access to the extra frame-by-frame device sensor info. Right now I have methods to get live sensor data and I am using CameraX for the video capture part. I already have methods to encode all my numerical sensor data into consecutive...

Kotlin serialization: nested polymorpfic moduke Recently I've been trying to implenent kotlin serialization for polymorphic class hierarchy. I used this guide, however my example was a bit more complex. I had the following class structure: @Serializable open class Project(val name: String) @Serializable @SerialName("owned") open class OwnedProject(val owner: String) : Project("kotlin")...

What is NetworkRequestHandler Class and why it's been used while working with APIs ? ✋🏻 I have seen this clsss used in many projects in which APIs are included but couldn't understand what's the use of this class. Please explain each line of this class properly. package dev.android import retrofit2.HttpException import java.net.SocketTimeoutException data class Resource(val status: Status, val data: T?, val message: String?) { companion object { fun success(data: T?): Resource { return Resource( Status.SUCCESS, data,...

How to Shuffle List Of Qoutes In Qoutes.json In Kotlin hi i am new to kotlin and want to get shuffeled my qoutes found in asset here is my peice of code private fun loadQuotesList(): Array { val inputStream = context.assets.open("quotes.json") val size :Int = inputStream.available() // find size of input stream val buffer = ByteArray(size)// define byte array and put size inputStream.read(buffer) // read byte array inputStream.close() val json = String(buffer, Charsets.UTF_8) //convert bytearray...

IntelliJ gives incorrect "Condition is always false" warning I am learning Kotlin by doing exercises on exercism.com. I am currently working on triangles. Part of my solution is like this: class Triangle(a: T, b: T, c: T) { init { require (a != 0 && b != 0 && c != 0) } } On the line with require(), IntelliJ gives the warning: Condition 'a != 0 && b != 0' is always false Condition 'a != 0 && b != 0 && c != 0' is always false I have the...

Date format using kotlin I would like to reformat a string from 14 Sep 2021 to 14 Sep using the SimpleDateFormat or any other APIs. Currently my code looks like this: private fun convertToDayAndMonth(date: String): String{ val dateFormat: Date = SimpleDateFormat("dd MMM yyyy").parse(date)!! return SimpleDateFormat("d MMM").format(dateFormat) but i am getting an error that says "14 Sep 2021" cannot be parsed

Create a card and show the user what does do this section in the app android how can create the green card in the below picture and show the user what does do section in the app android?

Operator called default onErrorDropped after upgrading the Spring boot version from 2.1.7 to 2.6.4 This code is running fine in Springboot 2.1.7 version but after upgrading it to Springboot 2.6.4 it throws exception. Unable to rectify the issue. Let me know where I have to change in code fun getScheduledTasks(): Flux { return Flux.fromIterable(tasks) .filter { logger.info("{} was enabled? {}", it::class.qualifiedName, it.config.enabled) it.config.enabled } .flatMap { task ->...

Как добавить затемнение экрана и добавить маленький разделитель? Всем привет, как сделать затемнение экрана при показе Bottom Sheet и сделать разделитель в Jetpack Compose? Буду очень благодарна если поможете)

extract data from JSON response volley android I´m trying to extract data from my JSON response from php in kotlin. This it´s result from my php: Log.d(TAG, "Login Response: $response") Login Response: {"data":{"name":"david","surname":null,"email":"prueba@prueba.com","phone":null,"password":"123456"}} but when i access to this json: W/System.err: org.json.JSONException: No value for name W/System.err: at org.json.JSONObject.get(JSONObject.java:400) W/System.err: at org.json.JSONObject.getString(JSONObject.java:561) W/System.err:...

Custom Marker in RadiusMarkerClusterer I created a customMarker that in addition to the image contains a label at the bottom with a name. If I create a "FolderOverlay" everything works correctly I see my custom Marker. This is my customMarker class MarkerWithLabel(mapView: MapView?, val label: String) : Marker(mapView) { val textPaint = Paint() init { with(textPaint){ color = Color.BLACK textSize = 35f isAntiAlias = true typeface = Typeface.DEFAULT_BOLD textAlign = Paint.Align.CENTER...

Different results on similar code with safe call operator in Kotlin I'm new to Kotlin and these two below codes give different results. fun main() { var name: String? = "Denis" name = null print(name?.toLowerCase()) } Output: Compilation Error (illegal access operation) fun main() { var name: String? = null print(name?.toLowerCase()) } Output: null

How can we reduce weak hit records using Machine Learning in Elasticsearch? I just learn the Elasticsearch app instance. I build the query to search data in Elasticsearch but it seems doesn't match really well. I want to use Machine Language to reduce the weak hit records and I don't know how. Can anyone help me, please?

Gradle fails after kotlin serialization plugin update to 1.7.10 My build.gradle.kts starts as follows: ... import org.jetbrains.kotlin.gradle.tasks.KotlinCompile plugins { ... kotlin("jvm") //target version is java 11 kotlin("plugin.serialization") version "1.6.21" } When I try to update the kotlin serialization plugin to the more recent 1.7.10 version, I get the following compilation error: A problem occurred configuring project...

Is it possible to get combined test coverage of android Unitesting and UI testing coverage | not repeated question I have tried using jacoco for fetching code coverage but every time i am able to get 100% success also i have found that JacocoEverywhere is deprecated is there any other way to fetch code coverage. I have gone through several stackoverflow questions not able to find the answer so raising this question.

Draw a circle behind BadgeBox to make it more visible, circle getting too small My code: IconButton(onClick = { /*TODO*/ }) { BadgedBox( modifier = Modifier.drawBehind { drawCircle( color = Color.LightGray, center = Offset( this.size.maxDimension / 2, this.size.maxDimension / 2 ), radius = 10f ) }, badge = { Badge(modifier = Modifier.size(12.dp)) {} }, ) { Icon(imageVector =...

Add + symbol at regular expression kotlin [duplicate] I would like to check whether a string is equal to my expression. For example I have such string: 2022-07-18T00:00:00+02:00 I did such regular expression: Regex("\\d+-\\d+-\\d+T\\d+:\\d+:[0-9]+ \\d+:\\d+") but how I can add + between 00+02? I tried to add it directly but it didn't work at all.

Pin a view to Bottom Sheet in Jetpack Compose I'm trying to implement a persistent Bottom Sheet in Jetpack Compose which has a button that should be pinned to the bottom of this sheet at all time, it shouldn't get dragged with the other contents when expanding. I couldn't find an easy way to do it except manipulating other views heights relative to the bottom sheet state which is hard to maintain. Any idea how can I achieve that? Here's an illustration for what I'm trying to achieve <a href=""...

How to save retrofit response in shared preferences in and use it repository layer I have post method where I am sending login request to server but first I want to save that response using shared preferences in my repository how can save retrofit response in shared preferences below my interface class I have implemented login post request logic interface MeloApi { @Headers("Content-Type: application/json") @POST("/login") suspend fun makeLogin(@Body loginModel: LoginModel) : Response } below my loginModel class data class LoginModel( val...

I cannot change the progressbar's progress when i am setting progressbar max and min value How to change the progressbar's progress color when you have set max and min value of progressbar. i have a progressbar and try to set max value as 15 and min value as -5. i want to show progress from -5 to 0 as progress and change the color of progress as red and show green color as 0 to 15 to the progressbar. false 4dp 4dp

How can I make a Navigation Drawer go to the back of the Layout when Closed? In my layout xml file i have a webView and a Navigation Drawer: When I run this, I can't click on the webview at all. But if i switch the order of the webview and the navigation drawer, then i can press on the webview but i cannot open the navigation drawer (or it can't be seen). I want to be able to click and open both. How can i achieve this functionality?

How to create new Activity/fragment in kotlin folder I decided to change the java folder in my project. I renamed app->src->main->java folder to app->src->main->kotlin Then I correct the path in the Gradle by blow code sourceSets { main.java.srcDirs += 'src/main/kotlin' } problem: When I want to create new activity or fragment by the wizard, new classes are created on the java folder even if I do right-click on the kotlin for creating the folder. <a...

The program does not work on some devices Good afternoon! Such a situation, I wrote a program for Android and the following situation arises: Emulating on Nexus 5 Android 11 (API 30) - works I run on a real device Honor 9 Android 9 (API 28) - works Galaxy A50 Android 11 - working I also run it with friends on their phones and the following happens, which seems strange to me: realme 6 pro android 11 - not working Redmi Note 10 pro Android 11 - not working redmi note 10s android 11 - not working And most importantly, I can’t track the...

Secondary constructor initiation logic I have a generic data class like: data class ConfigurationDTO( val id: Long, val key: String, var value: T ) And I would like to have a constructor where I could pass the value as String and a KClass to deserialize it. The problem is Kotlin oblies me to call this() on the secondary constructor and I have no value for value yet: constructor(id: Long, key: String, valueStr: String, klazz: KClass) : this(id, key, ??????) What I would like to do is the equivalent like:...

Clearing SharedFlow: Converting flow to mutableFlow I've an API that returns flow which I'm converting to sharedFlow using shareIn(). I've a use case where I want to reset the cached value in the sharedFlow and force the flow to fetch new data. We've a resetReplayCache() however it's only available for MutableSharedFlow. class User { val _flow = SharedFlow by lazy { Api.observeData().map {result-> transformData(result) } . shareIn(scope, timeout, 1) val flow = flow fun forceFetchNewData() { _flow.resetReplayCache()// how can I...

call fragment function from listener interface? How do I call a fragment function from a listener interface like this? viewBinding.myImg.setOnPhotoTapListener(PhotoTapListener()) } private class PhotoTapListener : OnPhotoTapListener { override fun onPhotoTap(view: ImageView?, x: Float, y: Float) { val xPercentage = x * 100f val yPercentage = y * 100f Log.d("abc", "photo tap") // doStuff()

Hilt - Android - Cannot inject members into int I have an interface like below: @EntryPoint @InstallIn (SingletonComponent::class) interface Listener { fun onQuestionClicked(id: Int) } In my Adapter class for RecyclerView I have used : // bind your view here binding.root.setOnClickListener { val myEntryPoint = EntryPointAccessors.fromApplication(context, Listener::class.java) myEntryPoint.onQuestionClicked(question.id) } In my Fragment Class : @AndroidEntryPoint class QuestionsFragment: Fragment, Listener{ override...

ActionBar logo keep centered. How to make it left aligned without using ToolBar? I am using action bar and I put logo as png image there but the logo keep being centered and I want it to be left aligned. The action bar and logo code is pretty much as follows: (activity as AppCompatActivity).supportActionBar?.setLogo(R.drawable.gesit_toolbar) (activity as AppCompatActivity).supportActionBar?.setDisplayUseLogoEnabled(true) (activity as AppCompatActivity).supportActionBar?.setDisplayShowHomeEnabled(true) (activity as...

How to fetch the content of the epub file fetched using epublib I'm trying to implement Epublib library while parsing .epub file in my project. I'm able to load the file onto the web view but cannot find any way to get the content of the file to further implement it in text to speech output. Any suggestion for the same? read_aloud.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { /*String editedTextReadable =...