How to map PagingSource to another object I implement paging 3 follow this codelab. codelab But when i create UserPagingRepository, i have problem that data class is not map. In Room DataBase, i use UserLocal otherhand i use UserRemote for data get from api. How can I convert data from data layer to domain layer (class User). const val NETWORK_PAGE_SIZE = 20 class UserPagingRepository( private val service: UserApiService, private...

Kotlin, delete all items in list with isChecked property equal to true New to Android dev here, and this might be very basic but I have the following data class in Kotlin data class ABC(val: id: String, val isChecked: Boolean = false) and the following mutable list in a separate ClassB: ABC_multiple: MutableList And I have the following button in the main activity of my app: removeButton.setOnClickListener { classb.removeId() } I would like the button to delete all of the list items that are checked (each item that will be added to the mutablelist has its own...

Kotlin Project - DefaultCatalog.java (No such file or directory) when I run mvn jooq-codegen:generate in Springboot + Maven + kotlin project it shows

Wrote stack traces to tombstoned and apps force close on tablet samsung I/.pawoon.pos.db: Background concurrent copying GC freed 345131(13MB) AllocSpace objects, 0(0B) LOS objects, 49% free, 17MB/34MB, paused 242us total 173.519ms I/.pawoon.pos.db: Thread[2,tid=25504,WaitingInMainSignalCatcherLoop,Thread*=0x725bedc800,peer=0x12ec0338,"Signal Catcher"]: reacting to signal 3 I/.pawoon.pos.db: I/.pawoon.pos.db: Wrote stack traces to tombstoned

move from callback to suspend function I have this function : fun createBiometricPrompt( activity: AppCompatActivity, processSuccess: (BiometricPrompt.AuthenticationResult) -> Unit, callback: BiometricCallback ): BiometricPrompt { var nbFailure = 0 val executor = ContextCompat.getMainExecutor(activity) val callback = object : BiometricPrompt.AuthenticationCallback() { override fun onAuthenticationError(errCode: Int, errString: CharSequence) {...

How do I pass superclass properties in subclass constructor in Kotlin I/m new to Kotlin. And I'm struggling with inheritance. Consider the following case. This code is ok open class BaseClass( val property1: String, val property2: String, ) And also this data class ExtendedClass( val propety3: String ): BaseClass() But here we have a compilation problem val extended = ExtendedClass( property1 = "", property2 = "", property3 = "" ) What is the use of open class inheritance if it's prohibited to construct sub-classes in that way? Instead I...

je developpe une application pour android ; Je suis actuellement un tuto qui et quand j'entre ce que la vidéo me montre ça met erreur dans le code private LocationListener locationListener; private LocationManager locationManager; private final long MIN_TIME = 1000; // 1 second private final long MIN_DIST = 5; // 5 Meters private latLng latLng; locationListener = new LocationListener() { { @Override public void onLocationChanged(Location location) { try { latLng = new LatLng(location.getLatitude(), location.getLongitude()) Vous voyez ces mots soulignés en rouge sont perçus comme étant des erreurs...

uploading a picture to a button background in kotlin I am using android studio bumblebee and using kotlin: I want to upload a picture and set in the background of a button. below code does not work. pls someone help. Thanks var selectedPhotoUri: Uri? = null override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) { super.onActivityResult(requestCode, resultCode, data) if (requestCode == 0 && resultCode == Activity.RESULT_OK && data != null) { Log.d("MainActivity", "Photo was selected")...

How to handle cutout area by compose? I'm a Android development beginner . How to handle cutout area by compose? As far as I know... WindowManager doesn't provide information about cutout area. and LayoutInDisplayCutoutMode can be set in xml file. I ask for your advice, please.

Android Fragment : Implemented Interface method called multiple times (times of instances Fragment is created) I am having a Fragment in Bottom Navigation View. That Fragment implements an interface which have methodxyz(), See the E.g. public class FragmentA implementes XYZListener { @Override public void methodxyz() { //this is interface's method which is called multiple times } } Now the problem is that when I switch between Bottom Navigation View tabs, every time when I came back to this fragment, a new instance of this fragment is created. So if I have switched to this...

Build process taking forever with kotlin on intellij I am trying to run kotlin on IntelliJ.However, the build process is taking forever and nothing appears as an output. I spent several days without solving the problem

How to create round corner Progress Bar in Button border Android I have requirement in Project to make this kind of Progress bar in my project. Please provide me guidance how can I archive this. Thanks for you help.

Create a function that lists the stations on a train route based on an input of stations Create a function that lists the stations on a train route based on an input of stations. For example, an input of ("NY Penn") should output "Train is stopping at NY Penn." For an input of ("NY Penn," "Woodside," "Forest Hills"), the output should be "Train is stopping at NY Penn, Woodside, and Forest Hills."

(1.16.5) Crafting table with multiple items in one slot I want to make a crafting table (custom) that will accept any vanilla and modded recipes AND my custom recipes with multiple items in slots (and for the table to recognize it). I've tried extending WorkbenchContainer class (kinda working, but shift click added items to the crafting grid), copying its code and making my own (doesn't do anything). class CompressorContainer @JvmOverloads constructor( id: Int, playerInventory: PlayerInventory, private val worldPosCallable: IWorldPosCallable =...

Convert Excel to PDF in Android using Kotlin Is there any way to convert Excel file into PDF in Android Kotlin? I came across a few solution but they are all paid versions/require licenses. I have large recycler view(report of between 1000 to 5000 records) which I need to save as Excel and PDF. Thanks.

Cause of Fatal Exception: android.database.sqlite.SQLiteException duplicate column Getting this crash repost on Firebase Crashlytics : android.database.sqlite.SQLiteException duplicate column name: run_in_foreground (Sqlite code 1 SQLITE_ERROR): , while compiling: ALTER TABLE workspec ADD COLUMN run_in_foreground INTEGER NOT NULL DEFAULT 0, (OS error - 11:Try again) Not able to find root cause of this problem. Below is the stacktrace Fatal Exception: android.database.sqlite.SQLiteException: duplicate column name: run_in_foreground (Sqlite code 1 SQLITE_ERROR): , while...

How to read sealed class subclass in Kotlin? In my Android studio project, I have a construct like following: @Stable interface Levels { @Immutable sealed class LevelData { object Empty : LevelData() @Immutable data class L1( val locationData: Locations.LocationData.StageL1 ) : LevelData() } } In another class I have val levelData = mutableStateOf(Levels.LevelData.Empty) variable with Empty as its default. Then the state changes and I would like to access the locationData in...

Android how to save postDelayed handler on screen rotation When I change the rotation of my device, the handler in my application will get erased. What is the best way to save a delayed handler after changing the device rotation?

kotlin singleton exception is bad or good? i'm studying kotlin. I have a question about using exception. which is better to use object exception or class exception in kotlin? object CustomDuplicateId : RuntimeException("Invalid user with Id") class CustomDuplicateId : RuntimeException("Invalid user with Id") if im using this exception only one location, than stacktrace is always same. so i think... it doesn't need to use class. is it right? or is it bad to use singleton exception? can anyone let me know what's better code to write...

Android project not building anymore due to modifierFlags class not being initialised? I am getting this error below when I try to compile and build my android project: I am using Android studio Bumblebee 2021.1.1 Patch 3 I tried building the project via the built in terminal window using ./gradlew clean bundleCMyFlavour_uatDebug But still getting the same error. Below is the full stack trace. java.lang.NoClassDefFoundError: Could not initialize class org.jetbrains.kotlin.com.intellij.psi.impl.cache.ModifierFlags at...

How to pass data that changes real-time from activity to fragment? I am currently reading data from a Bluetooth Sensor, hence the data changes in real-time and continuously changes. I have stored the data in a variable: liveData:ByteArray Now I am trying to send liveData from MainActivity to Sensordisplayfragment. Using a solution from this article(Android programming send continuous data from class to fragment),I have implemented the...

scan more than 10 barcodes in one bitmap using ML Kit Barcode Scanning I am using Google Ml Kit on Android to process bitmaps of scanned student tests with barcodes that has a lot of codes on them evrything works well except that it gets back always not more than 10 barcode even if there are 40 on one bitmap, is there a way to change detector options to get more than 10 detected?

Defined color is not showing on drawable element - Android studio I got a problem with color on my button.xml file in drawable folder. I have 2 rounded buttons, one with green background and one with grey. This is the code for my grey rounded button: In layout, I created a button and called android:background="@drawable/round_button_grey"" Code for both buttons: As the result I get both buttons green, but I would like to have left button in my grey color. <a href="" rel="nofollow...

how to solve kotlin coroutine annotation warning let me ask I use kotlin coroutine @OptIn(DelicateCoroutinesApi::class) GlobalScope.launch { displaySura() } and in the build tab showing warning: This annotation should be used with the compiler argument '-opt-in=kotlin.RequiresOptIn' how to solve this warning? thanks in advance

Change ellipsize character How can I change dots to commas/stars when using ellipsize (textview) in Android? Example with dots: Lorem Ipsum is simply dum... Example with stars: Lorem Ipsum is simply dum***

Why I am not able to load users info to firebase in jetpack compose? I am new in Android jetpack compose, so I want to create simple register app with firebase, so I am using viewmodel in my project, and route views by NavController, so when I debug my project I am not able to save users in firestore and it is throw ar error in Logcat as I mention below, I am not sure What I missed in my project, any idea? SignupScreen: @Composable fun SignupScreen(navController: NavController, viewModel: SimpleLoginViewModel) { CheckSignedIn(viewModel = viewModel,...

Spring Framework RCE Hi anybody know how to implement this code to fix spring vulnerability in kotlin? Im trying to covert the code but so many classes are change in webflux. @Bean public WebMvcRegistrations mvcRegistrations() { return new WebMvcRegistrations() { @Override public RequestMappingHandlerAdapter getRequestMappingHandlerAdapter() { return new ExtendedRequestMappingHandlerAdapter(); } }; } private static class ExtendedRequestMappingHandlerAdapter extends...

How to change the status bar color at Material3 theme when scrolling？ I'm a beginner Android develpoer, and my native language is no English. Please forgive me if I am wrong. I am developing a simple application using Material Design 3 theme. I want to change the defaule toolbar color, but the status bar color doesn't change with the color I set to toolbar. When I ccrolling the window, it's someting like this. The code is : themes.xml...

Transaction Too Large Exception when taking multiple photos with multiple button when i capture images with multiple buttons from multiple fragment, this error occurs.Could someone explain about this error? at android.app.ActivityThread$StopInfo.run(ActivityThread.java:3950) at android.os.Handler.handleCallback(Handler.java:790) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6494) at...

How do I execute kotlin scripts in Spring Boot applications? I want to run some DSL scripts in Spring Boot applications. I have intended to use Kotlin to write DSL. But I don't know how to perform Kotlin scripts. This is code: public class ScriptExecutor { public static void main(String[] args) throws ScriptException { ScriptEngineManager engineManager = new ScriptEngineManager(); ScriptEngine engine = engineManager.getEngineByExtension("kts"); engine.eval("println(\"Hello Kotlin!\")"); } } And I used ojdkbuild8...