Minecraft Paper plugin - Could not pass event PlayerInteractEvent I just started to learn paper and Kotlin, and i have a problem with my plugin. Every time I right-click, I see java.lang.NoClassDefFoundError. I can't find what the problem is, can you please help me? Thank you in advance! src/main/kotlin/org.example.tutorial: package org.example.tutorial import org.bukkit.Material import org.bukkit.entity.Fireball import org.bukkit.event.EventHandler import org.bukkit.event.Listener import org.bukkit.event.player.PlayerInteractEvent import...

metadataOutputRectConverted(fromLayerRect:) in Android Currently I have a problem with cropping an rectangle from the camera preview. Basically I have setup the camera using fotoapparat where I have setup the scaleType of the preview to be ScaleType.CenterCrop. Because this stretches the preview to fill the screen (I have a full screen portrait mode camera preview) I don't know the true width of the camera. So now when I want to cut out rectangle from the image...

Passing list of Enum as path variable - Spring/Kotlin Trying to pass list of Enum values as path variable @GetMapping(path = ["/days"], produces = ["application/json;charset=UTF-8"]) @ApiOperation("Process by days of week") fun processByDaysOfWeek(@PathVariable day: List): { ... } enum class DayOfWeek { MONDAY, WEDNESDAY, THURSDAY, FRIDAY; } When testing with RestAssured val days = listOf(DayOfWeek.MONDAY, DayOfWeek.THURSDAY) RestAssured .given() .spec(spec) .pathParam("days", days)...

Change Checkbox background on click? I have a Checkbox with custom images inside a selector... and I am trying to achieve the following effect wnen the checkbox is clicked: Gif for reference: Tha background has to change while the checkbox is pressed and then goes back to normal when released. The first two buttons are ImageButtons and the effect was easily achieved but with Checkbox I'm struggling. I guess it has to be something with the selector itself but I am not quite sure how to implement it. I tried adding a shape inside...

Cannot find application variable to Application in Android I want to use manual dependency injection and my intention is to use the Application class in a fragment for initializing objects, but Android studio cannot find a variable. I have defined the name of application in the manifest, but it says unresolved reference: application. Here is the snippet: class App : Application() { lateinit var appContainer: AppContainer override fun onCreate() { super.onCreate() appContainer = AppContainer() } } appContainer = (application as...

How to use Mapbox reverse geocoding outside of the US I have been trying to use the Mapbox reverse geocoding to get a place's name from it's latitude and longitude in my app, and it works great inside of the US but outside of it doesn't. Maybe I need to change the geocoding criteria? My call: searchCall = MapboxGeocoding.builder() .accessToken(context.getString(R.string.mapbox_access_token)) .query(Point.fromLngLat(point.longitude, point.latitude)) .geocodingTypes(GeocodingCriteria.TYPE_ADDRESS) .build()...

error: Cannot figure out how to save this field into database. You can consider adding a type converter for it. - obs in java.util.Observable I just upgraded my android studio to Artic fox. And all of sudden I am facing an issue saying "error: Cannot figure out how to save this field into database. You can consider adding a type converter for it. - obs in java.util.Observable". It was working fine for the previous android version. Can any one help me please. I am stuck!! I tried every thing but did not work out. Thanks in advance. dependencies are as follows: implementation "org.jetbrains.kotlinkotlin stdlib jdk81.4.10"...

Transfer data from Android with webView to Asp.Net backend I have an Android App that is basically a webView to our asp.net web application. Now I have to implement a barcode scanner in the android app to read and transfer the number from the barcode to the asp.net backend. I have this line in js in the web to call the android function for the barcode scanner: window.AndroidWebInterface.getIcc(); In android I tried many different approaches to start the ScanActivity witch uses ML Kit to read the barcode witch is working fine, but I have problem...

Mock any HandlerThread() constructor with a looper during testing I have to mock the following method: private fun returnThread(): Looper { val handlerThread = HandlerThread("name", 1) handlerThread.start() return handlerThread.looper } I cannot use the PowerMockito's whenNew() method because of the JaCoCo issue (tests are not taken into account in SonarQube if PowerMockito use PrepareForTest with the tested class as a parameter)) Is there any other way to do it?

Kotlin / value passing to List<>() I have a question in List() I'm asked to pass init and size. I'm not sure if it's obligated to pass it as in my following tutorial ArrayList() was empty, maybe it's because I was using List? Also, it doesn't recognize lowercase() and add() is it also related to List? Code Snippet val contacts = remember { DataProvider.contactList } var filteredContacts: List val textState = remember { mutableStateOf(TextFieldValue("")) } LazyColumn( ... ) { val searchText = textVal.value.text...

Implementation of RealTimeDatabase of Firebase into a Kotlin App I was developing an App where I try to connect to a Database, create with firebase, in order to upload the diferents services offer into the App. My question comes when I see into the firebase documentation, the way to read data from it: database.child("users").child(userId).child("username").setValue(name) In my case the structure of my firebase database is the following: So, my question is who is my 'child', into...

Showing error when using "createNewNote()" function Can anyone tell me what's the reason behind the error it's seems to be okay for me but showing the error when creating newNote.

Android TelephonyManager requestCellInfoUpdate returning old timeStamp but data was changed I update allCellInfo in Android 10 and higher with requestCellInfoUpdate: if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) { tm.requestCellInfoUpdate( context.mainExecutor, object : TelephonyManager.CellInfoCallback() { override fun onCellInfo(activeCellInfo: MutableList) { } }) } Why the activeCellInfos timestamps stay old but data (rssi, rsrp, rsrq and...

Should I emit from a coroutine when collecting from a different flow? I have a use case where I need to trigger on a specific event collected from a flow and restart it when it closes. I also need to emit all of the events to a different flow. My current implementation looks like this: scope.launch { val flowToReturn = MutableSharedFlow() while (true) { client .connect() // returns Flow .catch { ... } // ignore errors .onEach { launch {...

Expecting member declaration Recognize Flowers with TensorFlow Lite on Android I want to make an app with tensorflow Lite on Android studio. I'm follow an tutorial and I'm stuck by (6): https://codelabs.developers.google.com/codelabs/recognize-flowers-with-tensorflow-on-android/#6 Normaly I work with Python, so this is new for me. I use this code for step 6: ''' // TODO 1: Add class variable TensorFlow Lite Model // Initializing the...

How to remove padding between AlertDialog and title/text with Compose Using compose, I want to create something like this : Problem is using compose AlertDialog I only achieve to get this : There is a padding between the AlertDialog border and the title that can not be removed. How to remove it using Compose ? Using Modifier.padding(all = 0.dp) doesn't work. I tried it at every level.

Simple login activity in Kotlin Can somebody tell me what I doing wrong? I want to make a simple login activity. Insert password, for example "112", activate by ENTER on keyboard and get to new activity. I do it this way but it doesn't work val password: EditText = findViewById(R.id.password) password.setOnKeyListener{ _, keyCode, keyEvent -> if (keyEvent.action == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_ENTER) { if (password.equals("112")) { Intent(this,...

debounce() Kotlin Flow operator doesn't work with Each new Flow creation, how to resolve this? So I've been exploring MVI with Kotlin Flows, basically MutableSharedFlow for Events and MutableStateFlow for States. but I have a problem adding logic to control the text changes event emissions, writing this in a human way would be something like that. Observe text changes and only search for the latest word written within half of a second. So if the user removes or adds letters I only take the search for the latest word after half-second passed. My attempt to achieve this was by writing...

Distance covered by cycle using google-fit HistoryClient api -Android I am trying to get the distance covered by the cycle using the TYPE_ACTIVITY_SEGMENT and from this I am getting list of activities. I am getting cycling(Activity Type - 1) activity but not getting distance covered.

Spring Boot Kotlin RequestBody Validation handleMethodArgumentNotValid This question is about the Kotlin version of Spring Boot. I'm using Spring Boot 2.5.5 with spring-boot-starter-validation on JVM 11. I'm trying to achieve that my REST API will return a body of the validation error when validation fails. By default, Spring Boot will return a HTTP status 400, with an empty body. I wan't this body to be occupied by the validation message, so I can figure out what input is wrong/missing/etc. Everything I could find suggested that one would use a...

ScanCallback: Check if no device has been found in a certain intervall I built an app that is constantly checking for a BLE device and on onScanResult updates a list with the newly discovered device. I want to delete the devices in the list if no device was found in a certain interval. Is there an elegant way to get a callback if this was the case (I am trying to avoid some nasty work-around)? In the documentation on developer.android.com I haven't found something like that. The method: private val leScanCallback: ScanCallback = object : ScanCallback() {...

Hibernate in Spring Boot failed to lazily initialize a collection of role, could not initialize proxy - no Session exception I have three entities, two of which each contain a collection of the third. When I go to set them up by creating two of the "owning" entities with an instance of the third, only one of them works properly. The other throws this exception when adding it, even though the collections are set up exactly the same way: "Owning" entities: @Entity class Source( @OneToMany(mappedBy = "source", cascade = [CascadeType.ALL]) var targets: MutableSet = mutableSetOf(), @Id @GeneratedValue...

Passing headers From Kafka ConsumerRecord to Kafka ProducerRecord / RestTemplate / Feign We are planning to use custom headers for testing purposes which should be passed across our microservices. Our application use Java/Kotlin with Spring Boot. Thanks to RequestContextHolder we can easily get headers from HTTP-requests (Servlets) and pass them wherever we want. For example, we add them in every Feign-request: class CustomRequestInterceptor : RequestInterceptor { override fun apply(template: RequestTemplate) { val requestAttributes =...

Mockito How to test that an instance created inside a method is calling methods Let's say I have this function: fun method() { val obj = Obj() obj.callsMethod() obj.callsOtherMethod() } How can I do something similar to verify(obj).callsMethod()? Is there any other way I could test this method?

Java - Not the expected format from Locale I'm having some issues in some countries, on this case is with the Locale("cs", "CZ") the format of the date I'm looking for is dd. MM. but is returning dd.MM., how can I solve this? I'm trying to get the pattern doing this : val pattern = DateFormat.getBestDateTimePattern(locale, "ddMM") val dateFormatted = DateTimeFormatter.ofPattern(pattern,locale).withLocale(locale).format(date) But the problem is since I'm using this Locale it's somehow assigned with an unexpected date formatter. How...

I put the search function in the recyclerView. Items are not only seen as new data, but new data seems to be filled up a little on old data. in kotlin Pressing the search button in Main Activity changes the values of the items in RecyclerView. The problem is that the existing data remains except for the newly retrieved data. How can I show you only the new values on the list? --- MainActivity.kt ---- class MainActivity : AppCompatActivity() { private lateinit var binding: ActivityMainBinding private lateinit var toolbar: Toolbar private var logTag : String? = "로그...

Kotlin js/jvm format templates I am looking for an ability to describe format templates (eg. used in java.util.Formatter) for dates (like java.text.SimpleDateFormat) and numbers (like java.text.DecimalFormat) that could be transparently used to format values both on the backend (jvm) side and on the browser (js) side. I hoped that kotlin can provide this feature, but my research stopped at feature requests like <a href="https://youtrack.jetbrains.com/issue/KT-21644" rel="nofollow...

JUnit Test for when clause in Kotlin How to write test case for below piece of code: fun calculateResult(score: Int): String { return when { score >= 257 -> "Genius" score in 234..256 -> "Great" else -> "Good" } } Any help would be appreciated!

how to prepare .amr or .wav file for yamnet.tflite model in kotlin or java I'm trying to prepare the input for yamnet.tflite model by using this code. I used this code from GitHub. import java.io.BufferedInputStream import java.io.DataInputStream import java.io.File import java.io.FileInputStream import java.nio.ByteBuffer import java.nio.ByteOrder object AudioConverter { fun readAudioSimple(path: File): FloatArray { val input = BufferedInputStream(FileInputStream(path)) val buff = ByteArray(path.length().toInt()) val dis =...

Generic Class as a Default Response I was trying to create a default response class for my API, thus avoiding returning the specific object. But the problem is, in Java I can do it, but in Kotlin I can't :( . Here is my Controller: @GetMapping("/search/{title}") fun returnMovie(@PathVariable("title") title: String, @RequestHeader("include_adult") includeAdult: Boolean, @RequestHeader("page") page: String, @RequestHeader("language") language: String): Response...