Kotlin (Android APP) Bluetoothsocket with a ESP32 If i try to start a bluetoothsocket with my ESP32 the App crashed instant! Or a part of my kotlin code dosent work! MY Code: Kotlin-Code for the App (a part): https://docs.google.com/document/d/1vzbtYBk-3S7a-tBzydI_Yg0esLzHhc_GTUkgKEiG5ts/edit?usp=sharing ArduinoIDE Code: <a...

Kotlin OpenapiGenerator Any type generates into Map&lt;String, JsonObject&gt; I'm struggling to find correct way to define Any object in Kotlin so that OpenApiGenerator would generate it as Object type. I have a simple DTO object, payload is basically a map of object fields and values: data class EventDto( val payload: Map, ...other fields ) Which gets converted to OpenApi Spec and looks like this: ommited code ... "payload": { "type": "object", "additionalProperties": { "type": "object" } }, But when I execute open-api-generator this get's converted...

Synchronized statement having a variable of type Any() as a argument. (Android)(Kotlin) In the synchronized statement parameter what does a variable Lock = Any() even do? synchronized only allow a single thread into the body at a given time, hence why don't we use this instead of Lock = Any() as this refers to the companion object itself? I have read that it is something related to java monitors, however, I don't get it. companion object{ ... private val LOCK = Any() operator fun invoke(context: Context) = instance ?:synchronized(LOCK){ ... } }

Speech to Text using EditText Ok I am building a small app to learn some Speech Recognition in Kotlin. The issue I am experiencing is that my EditText is not posting what is being said. It returns a null value. So when I access the text.text = result?.get(0).tostring() it says it has to an Editable!. I then changed it to text.append(Editable.Factory.getInstance().newEditable(result?.get(0).toString())) I have also tried setText, append and text.text I am not understanding where my code is posting null in the editText...

Jetpack Compose Immersive mode Dialog I have an Immersive application that's hiding the system bar using the Compose accompanist library in system navigation val systemUiController: SystemUiController = rememberSystemUiController() systemUiController.isStatusBarVisible = false // Status bar systemUiController.isNavigationBarVisible = false // Navigation bar systemUiController.isSystemBarsVisible = false // Status & Navigation bars systemUiController.systemBarsBehavior =...

How to target a varible which is part of a different fragment ( I need to target a listview adaptor) I would like update the Page3Fragment ListView every time the button submitEntryBtn in Page2Fragment is pressed, which basically inserts data in a SQLlite db. Once the button in fragment two sends the data entered by the user in the database, i would like to update the ListView at the same time, hence i was wondering if there was a way to access the variables from fragment 3 through some kind of function. class Page2Fragment : Fragment() { lateinit var viewModel: MyViewModel lateinit...

I can't make variables work Android Studio I have learned the java basics and am now trying to make an android app for my phone. I was doing fine up until I started using variables in android studio. Im fairly sure variables are meant to be declared like var/val varName:Boolean false; But whenever I do this I get an error saying "Cannot resolve symbol var". I have researched but I cannot find any reason this is happening and no matter where I put this line of code it does not work. Everywhere I found online seems to say I'm doing it...

How to learn whether a Snackbar button was pressed? I have a Snackbar which is being opened when a user swipes on a RecyclerView element to delete it. And this Snackbar allows a user to undo his action. I know how to get an element of the RecyclerView back. But I also have a database(SQLite). It seems to me, the best way to do a removal from a detabase is to do it when I understand that a user doesn't press "undo". Otherwise I will need to make a removal and then adding. I want to do something sort of this: when (snackbar_button){ was_pressed...

How to get line breaks in a long text when writing to a pdf using canvas I am trying to write long texts (captured through string.xml in the $nameSpeech variable) to a pdf using canvas.drawText but it does not implement any line breaks, and \n and more do not work. Is this possible anyway using canvas.drawText? canvas.drawText("This was his speech: $nameSpeech",20F, 200F,title) I am a rookie with Kotlin and studied several main developer sites, and tried to specify start and end drawText. There is lot on Java but little on Kotlin. Who can help?

Setting Minimum TLS Version Micronaut HttpClient The documentation from Micronaut is limited here. We're using io.micronaut.http.client.HttpClient to access a 3rd party API. All I can find is this https://docs.micronaut.io/latest/guide/configurationreference.html but it doesn't give examples?! How do we specify version of TLS that we are prepared to interact with? Thanks in advance.

Application startup problems when running tests via the @QuarkusTest annotation Reservation: I am not sure if this is a bug or a work limitation of the annotation @QuarkusTest. This is our first big project on this framework, so please do not judge strictly. My team and I write a project using Kotlin, Quarkus as the main framework, Gradle as the build system and Smallrye GraphQL. We have an application that is covered with tests. The problem arises when we write integration HTTP tests for our EndPoints. The tests work out correctly, but only when we run them having the...

lateinit variable not being initialized in a thread So I'm working with the google sheets api in an android app and I'm trying to get the credentials in a separate thread. This is what I have: GoogleSheets is a class I created to get credentials and cell values of my spreadsheet private lateinit var sheets: GoogleSheets is a instance variable that I declare at the beginning of the class. I am trying to initialize here: load.setOnClickListener(View.OnClickListener { Thread { sheets = GoogleSheets(requireContext(),...

How can i add custom code when backstack is used Im new to programming. Im currently working on a app with fragments and bottom naviagion tab. I coded so that when certain fragments appear, the bottom navigation view is gone (as intended). Later I have implemented Backstack, but i have no idea how to make the bottom nav gone when certain fragments are revived via Backstack. Sorry for any grammar mistakes. MainActivity.kt file navView.setCheckedItem(R.id.library_nav_drawer_button) navView.setNavigationItemSelectedListener {...

Following Kotli package com.example.helloworld fun main(){ print("Hello World") } Following tutorial. Suppose to execute a simple test. But I can not run in AndroidStudio. I don't know what as gone wrong. In the video it happened without a problem.

Migration not starting with mongock 4.3.8 I am trying to create indexes on a mongodb collection using mongock version 4.3.8. The mongockLock and mongockChangeLog collections are eventually created, but the migration itself does not run. mongockChangeLog table is empty. Query db.REAL_ESTATES_V2.getIndexes(); returns a single string: with an index for id (the value of name in it is equal to id), which is most likely generated automatically. There are no obvious errors in the logs either. Everything else seems to be set up correctly,...

Zebra DataWedge Intents with GS-128 I am beginning to develop an Android app for a Zebra MC9300 scanner and running into what I'm guessing is a configuration issue, but being new to both Zebra and Android development, I'm at a bit of a loss. I started out using the samples from https://github.com/darryncampbell/DataWedge-GettingStarted-Samples and the Kotlin code for handling the Intent seems to be this block: private fun...

How to add Material You dynamic color to a SwipeRefreshLayout widget? I'm trying to change the default black color of the pull to refresh arrow to a Material You dynamic color (for instance, the user's primary color based on their wallpaper). It doesn't seem to be possible to do over XML, and I tried over Kotlin but it wasn't pulling the dynamic color. I know that for SwipeRefreshLayout, you have to use either setColorSchemeColors() or setColorSchemeResources(), but I can't seem to...

Webclient raises exceptions on responses with non-200 status codes. How can I return the response anyway? When using Spring Webclient, any non-200 status code immediately throws an exception. I do not want this behavior. I have the following API Service: fun createSomething(body: String): SomeCustomResponse { // Get signedRequest from another service (see below for that code) return signedRequest .retrieve() .bodyToMono(SomeCustomResponse::class.java) .block() } My response class intentionally contains an error field: data class...

'Execution target' list on KMM Android studio is empty I'm trying my hand at Kotlin Multiplatform Mobile, and am trying to run the demo app on an iPhone. I am able to run it easily on the Xcode simulation but can't simulate it on Android Studio, I'm not able to se 'Execution target' list I can do it on Xcode but No when I try directly on Android Studio, What can I do? <a href="" rel="nofollow...

Difference between Dates - Kotlin Guys! I need some help here. It's basically a logical question. I have a Date of publication of an item. Example: 10/12/2022 I need a function to calculate this date from now, with a few rules: If the difference is less than an hour, returns string: "Published 15 minutes ago" If the difference is less than a day, returns string: "Published 4 hours ago" If the difference is greater than a day, returns string: "Published in 10/12/2022" How can I do this? Thanks a lot for you help! private fun...

Kotlin: how get device token from javascript? From a Javascript function I want to get the device token. I come from Javascript and PHP and I need to do it this way. I'm newbie to kotlin. This is my project, where is the problem? MainActivity.kt ### I'ts Works class MainActivity : AppCompatActivity() { private lateinit var webVisor: WebView override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) ejecutarWebView() // Ejecuta mi WebView...

Unity ads not working on android 7.0, 7.1.1, 8.0 &amp; 8.1 Users of my application who have androids from API level 24 to 27, cannot watch the unity ads, when the ad starts, it freezes, there is a black screen and soon the ad is closed... This happens with the rewarded ads. If anyone can help me out I would be very grateful. Thanks in advance! Add some Permissions in the AndroidManifest.xml file, change the Unity library version... From android 8.1, ads work normally :(. (I'm using Android Studio IDE)

Flutter setState don't update UI when receiving data from kotlin I am learning about Inter-Process Communication (IPC) on android. I create 2 app (Client, server) sample projects using flutter. When the client sends data to the server. server successfully received data from koltin. and then i use methodChannel to call to dart and update UI(setState) with received data. But the UI at the server doesn't rebuild. both client and server app run on same android virtual machine. I guess flutter can't update the UI when the app is inactive. Here is the code:...

Drawable is not getting displayed The drawable is not getting displayed circle_add.xml in drawable I have used it inside the editText But it is not getting displayed inside the textbox. How to make it appear at the end...

Use Kotlin val in another gradle module Hey everyone i have a problem trying to use a val with arguments in another module. I Have this in my main build.gradle.kts (root project) val copyJars = { file: Provider -> run { val name = file.get().asFile.name println ("Moving $name to new directory!") val path = "C:/Users/andre/OneDrive/Desktop/DirtyFolder/$name" file.get().asFile.copyTo(File(path), true) } } And i'm trying to call it from another module in another build.gradle.kts, when i was just...

Android Recycler View Drag to Reorder Not Correctly Updating Recyler View I'm working on an application that has a recycler view filled with live-data items that needs to be able to reorder these items. I've added a handle to each item for it to be dragged by and implemented a basic reorder logic.The problem I'm running into is that when I drag an item the behavior is very unusual. It's difficult to describe so I've added a video here https://streamable.com/joe50r I'll add the code below, but...

WorkManager not working periodically in Android I was creating an android notification app which gives notification every 15 minutes after the alarm has been set. it calls first time, and shows notification but workmanager not calling every 15 minutes. val myWorkRequest = PeriodicWorkRequestBuilder(15, TimeUnit.MINUTES).build() WorkManager.getInstance(applicationContext) .enqueueUniquePeriodicWork("work", ExistingPeriodicWorkPolicy.REPLACE, myWorkRequest)

Recomposition Issues only on api 28 debug build (Jetpack Compose) Basically, what is supposed to happen is when you press on the time signature container, it will expand and reveal 4 buttons. This works perfectly, what doesn't work is specifically on API 28 (my minimum sdk version) the first time you open the container, the text will sometimes update (the numerator and...

Android Studio Refresh without blinking or flickering Kotlin I have a page that refreshed every 10 seconds, but every time it refreshed it start to blink. Can I somehow remove or at least reduce the blinking? This is BlablaFragment fun refresh() { lifecycleScope.launch { sharedFlow.emitAll(flowOf(BlablaIntent.GetMyBlabla)) } } This is PortPageAdapter fun doRefresh() { BlablaFragment.refresh() historyFragment.refresh() loseFragment.refresh() moneyFragment.refresh() } This is PortFragment private val autoRefresh = object...

Incoming Phone Call notification has no ringtone sound or vibration Method to create a Notification Channel private fun createChannel(notificationManager: NotificationManager) { val uri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_RINGTONE) val audioAttributes = AudioAttributes.Builder() .setUsage(AudioAttributes.USAGE_NOTIFICATION_RINGTONE) .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION) .setLegacyStreamType(AudioManager.STREAM_RING) .build() val...