I make extension function in android using kotlin and method from the data type, but my extension function not working properly? I want to make extension function using TextInputEditText and call addTextChangedListener, but when i run the app and using the feature, my app crash sorry for my bad english private fun TextInputEditText.textChangedListener() { addTextChangedListener(object: TextWatcher{ override fun beforeTextChanged(p0: CharSequence?, p1: Int, p2: Int, p3: Int) { } override fun onTextChanged(p0: CharSequence?, p1: Int, p2: Int, p3: Int) { }...

Spinner - how to get rid of spinner automatically selecting the first element in it? I have a spinner, which automatically selecting the first element. Since I'd like to have a possibility to select, even the first element, how I may prevent spinner to actually wait for user to tap on it, and select some item? My code kinda works, but firstly, I have tap on any other element in spinner than first, and then, I can click on first one. Why is that, and how I can make a rid of it? private fun setupSpinner(currencies: MutableList) { val adapter =...

Room-runtime: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.7.1, expected version is 1.5.1.: Hello I get an error after adding Room dependencies and changing the Kotlin version doesn't seem to fix the issue. error: /Users/Erin/.gradle/caches/transforms-3/c3d04919ade1d841f45db1aa77dde355/transformed/room-runtime-2.4.3-api.jar!/META-INF/room-runtime_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.7.1, expected version is 1.5.1. build.gradle(:app) dependencies{ def room_version = "2.4.3" //room...

How to add a spinning wheel inside browser while CustomTabsIntent is loading the screen? On Android Studio, we use CustomTabsIntent to launch an in-app browser to a specific link. However, sometimes it can take some time before the destination page is loaded inside the browser so we just see a white screen for a few seconds. How can we add a spinning/loading wheel when it is in the browser? I tried adding the wheel but it only works when it is during the app session, but once that browser opens up it goes away, and we see that white screen for a few seconds before the destination...

Bottom Navigation bar with Navigation Component didn't change the Fragment? mainactivity.xml MainActivity.kt class MainActivity : AppCompatActivity() { private lateinit var binding: MainactivityBinding private lateinit var navController: NavController override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) binding = MainactivityBinding.inflate(layoutInflater) setContentView(binding.root) navController = Navigation.findNavController(this, R.id.bottom_nav_control)...

Java CUP: can't declare non terminal with nested generic type How can I declare non terminal type that is a nested generic type? i.e. The following produces error: non terminal List; I can wrap it with specialized type, but it would miss the point... is there something more elegant, or I missed something?

How to output mathematical operation alongside the calculation in simple Kotlin Calculator I'm very new to Kotlin programming and can't seem to figure out a working solution. I need to have the output include the mathematical operation and have it equal the calculation as the output eg. 1+1=2 needs to be the output instead of just the answer My addition function is below Any help if greatly appreciated. fun add(){ var input1 = firstvalue.text.toString().trim().toBigDecimal() var input2 = secondvalue.text.toString().trim().toBigDecimal() calcoutput.text =...

How to pick a dependency from local Maven repository I've published a dependency locally. The dependency is located on path C:\Users\myusername\.m2\repository\com\mycompany\my-library\1.0\* which I think is the default path on Windows. Now, on a different project I try to consume this library. My build.gradle looks like this(among other dependencies) ... buildscript { repositories { mavenLocal() } } ... dependencies { implementation('com.mycompanymy library1.0') } I'm getting build errors that some classes do not exist etc......

App crashes when api call returns zero results so, I've been writing a cocktails app, using the https://www.thecocktaildb.com/api.php. One of its functions is to search for cocktails based on ingredient, return a list of those and display them using a recyclerView. When I input an ingredient that does not exist (for example Vwdka), the app crashes Here is my api's interface: interface CocktailApi { //@Query("i") i: String = "Empty"...

Wiremock - how to read response from json file? I am trying to use wiremock, using this dependency: com.github.tomakehurst wiremock-jre8 2.33.2 test I intend to read responses from json files. However, nothing I do works. The test passes without reading the file (I've attempted to use random file names and it always works). What could be wrong here? @SpringBootTest @TestExecutionListeners @ContextConfiguration(initializers = [WireMockContextInitializer::class]) @AutoConfigureWebTestClient class EndpointsTest {...

Testing WorkManager with custom initializer and Hilt I am trying to implement instrumented test for my custom Work Manager which uses Hilt's @AssistedInject. My Work Manager performs perfect in an app but when I am trying to test it according to Google's work manager integration test guide I'm getting a error: WM-WorkerFactory: java.lang.NoSuchMethodException: com.android.wmapp.data.SyncWorker. [class...

Javax validation message according to condition I have a Spring Boot project in Kotlin which uses a custom locale interceptor to know from which .properties file it load messages. This works pretty fine. Also I have a custom annotation which is simple and has a default message value, as follow: @Target(AnnotationTarget.Field) @Constraint(validatedBy = [MyCustomValidator::class]) annotation class MyAnnotation( val message: String = "{javax.validation.constraints.MyAnnotation.message}", val groups: Array = [], val payload: Array...

Migration error using room library with affinity parameter How to change affinity? Expected: serial_number_prefix=Column{name='serial_number_prefix', type='TEXT', affinity='2', notNull=false, primaryKeyPosition=0, defaultValue='null'}, Actual: serial_number_prefix=Column{name='serial_number_prefix', type='STRING', affinity='1', notNull=false, primaryKeyPosition=0, defaultValue='null'}, The only change is affinity = 1, but it should be affinity = 2. How to change it? This is my migration function database.execSQL("ALTER TABLE values ADD...

Kotlin | Get Uri from String or Intent private val getResult = registerForActivityResult( ActivityResultContracts.StartActivityForResult()) { eg -> if(eg.resultCode == Activity.RESULT_OK && eg.data != null){ println(eg.data) secilenGorsel = eg.data.toString().toUri() try { context?.let { if(secilenGorsel != null) { if(Build.VERSION.SDK_INT >= 28) { println("askdjhfakşsjdhfşkajsdhf")...

Не работает let и it в Котлине Не работает let и it в Котлине. В ошибке пишет: Unresolved reference: let Unresolved reference: it

Android custom dialog from github annoying unused space I want to use this Dialog https://github.com/SuddenH4X/awesome-app-rating but when it appears on the screen there is a big space between buttons and bottom of the Dialog like on the screenshot. I am using setCustomTheme(R.style.abc_dark_material) where this theme is How to solve that? Thank you in advance.

"Parameter specified as non-null is null" when using GestureDetector.SimpleOnGestureListener() onScroll() function I am using the GestureDetector.SimpleOnGestureListener() to react to UserGestures and expand a BottomSheet. The problem is that a very small percentage of the users experience the following crash. ( stacktrace stripped to make the question more readable) Fatal Exception: java.lang.NullPointerException: Parameter specified as non-null is null: method kotlin.jvm.internal.Intrinsics.checkNotNullParameter, parameter e1 at com.app.ui.fragments.HomeFragment$MyGestureListener.onScroll(:2) at...

How to prevent TalkBack from randomly calling out the app's name> I am testing my app with TalkBack and have noticed that at some points in the app for e.g. if I click a dropdown spinner, and select an item, it will call out the item's name (which is expected), but right after that it will call out the app's name as well. I know this is coming the android:label for the application in the Manifest, and I have tried removing it, and setting it null; but in that case it just reads out 'Untitled'. I am sure it is coming from there because when I change the...

Android Kotlin Room - why is the randomly drawn task_text from the database equal to null? In my application i wanted to randomly draw an object (Task with id, status and task_text) from the database, and then display it's task_text. However, whenever i'm doing so, the task_text is always null and i have no idea what that happens. DAO @Query("SELECT * FROM task_table ORDER BY random() LIMIT 1") fun findRandom(): LiveData REPOSITORY val randomTask: LiveData = taskDao.findRandom() VIEWMODEL val randomTask: LiveData init { val taskDao =...

Bottom Navigation Bar in Android Studio not Working? bottomNavigationView.setOnNavigationItemSelectedListener{ when (it.itemId){ R.id.local1 -> make_Fragment(fragment1) R.id.local2-> make_Fragment(fragment2) R.id.local3 -> make_Fragment(fragment3) } true } Here bottomNavigationView is throwing error : Unresolved reference: bottomNavigationView and also i defined the id on mainactivity.xml Here bottomNavigationView shows error and also...

updating gradle in android studio good evening everyone. i've updated android studio to chipmunk version, and the ide suggested me to update gradle to version 7.3.3 and I did. here is gradle-wrapper.properties #Tue Aug 30 184021 EEST 2022 distributionBase=GRADLE_USER_HOME distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip distributionPath=wrapper/dists zipStorePath=wrapper/dists zipStoreBase=GRADLE_USER_HOME and here is build.gradle // Top-level build file where you can add configuration...

How to mock geolocation in ARCore I'm building a app that is using the geospatial API from ARCore. The indoor localization is obviously not very accurate, but to make the development process easier im trying to mock my device location. Im able to create a mocked location with the system location manager. fun setMockLocation(lat: Double, lng: Double, alt: Double) { val provider = LocationManager.GPS_PROVIDER val locationManager: LocationManager = this.getSystemService(Context.LOCATION_SERVICE) as...

Create container from mvn kotlin with spring native I am trying to create a executable spring native from my kotlin application but I don't see an executable file on folder target. Is there missing anything? FROM ghcr.io/graalvm/graalvm-ce:ol7-java11-21.2.0 as build ADD . /build WORKDIR /build RUN \ curl -s "https://get.sdkman.io" | bash; \ source "$HOME/.sdkman/bin/sdkman-init.sh"; \ sdk install maven; \ gu install native-image; RUN source "$HOME/.sdkman/bin/sdkman-init.sh" && mvn --version RUN native-image --version RUN...

Can we read WAMR app chats or messages in our application Is there any possible way to read WAMR app's chats or messages (Which recover deleted messages from whatsapp) in our application.

Variable comparison error using firebase firestore Why is the res variable always false even though the parameters are correct? fun isValidUser(_studentEmail: String, _password: String): Boolean { var res = false userList.get().addOnSuccessListener { result -> for (document in result) { val studentEmail = document.data["studentEmail"] as String val password = document.data["password"] as String if (_studentEmail == studentEmail && _password == password) {...

Android espresso tests failing in emulator passing in physical device My Espresso tests in android project is failing mostly in emulator where as passing in physical device i am using same configurations for both the devices. Any idea or tips to be followed.

error when i try to move a function to another class I'm trying to develop my application, I initially wrote all the code in the MainActivity.kt class for simplicity. Now I am trying to organize my project in several classes, one of these I would like to contain the functions for the navigator that I'm developing (NavFunProva.kt), moving the function that creates a path between two points ( routePath() ) I'm encountering a problem which I report below, I have inserted some println in the function to understand where it hangs and I have noticed...

Error when upgrading Room to 2.4.3 java.lang.NoSuchMethodError: 'XMethodElement.hasAnyOf' I recently upgraded my Android project's Room version from 2.3.0-alpha02 to 2.4.3 and now I'm getting this error when I compile. I don't have any code to share because nowhere in my code is there a reference for hasAnyOf or XMethodElement. java.lang.NoSuchMethodError: 'boolean androidx.room.compiler.processing.XMethodElement.hasAnyOf(kotlin.reflect.KClass[])' The only reference I can find for hasAnyOf is in a comment here <a href="https://issuetracker.google.com/issues/160322705"...

How to draw a multicolored bar with Canvas in Jetpack Compose? How to attain a UI like this in Compose? Suppose there is a list of slices: data class Slice(val value: Float, val color: Color) Group-1 is 14.6, Red Group-2 is 61.8, Blue Group-3 is 23.6, Green Total 100.0

App is showing gradle error before connecting to android app I was using Firebase as I was new into the firebase whenever I try to connect my app with firebase it shows me error. Could not parse the Android Application Module's Gradle config. Resolve gradle build issues and/or resync.. I had tried to change my sdkversion from 32 to 31 but it was showing different error after that The minCompileSdk (32) specified in a dependency's AAR metadata (META-INF/com/android/build/gradle/aar-metadata.properties) . So, if someone knows the answer please let me...