border around a cardview I want to put a blue border around my cardview, but I can't put it on. It works on Constraint Layout tag but not on CardView card_edge.xml item_game_list.xml . . .

Android make FAB not active to single click but active for long click I Wonder if the issue I mentioned about in title is possible. I do not want floating action button to be grayed out because it would not be active for long clicks. I want it to be intact when simple click, but reacting on long click. How to do that? Solution can be both in Java or Kotlin. Thank you!

String manipulation in Kotlin I have an application version string. The structure of the versioning is x.x.x.x I am using Kotlin to parse this value and I am trying to only pull the major.minor out of the version string, or x.x. I am struggling to find any String methods that can accomplish this. Code: fun main() { val appVersion = "15.2.855.15" val majorMinorVersion = appVersion.substring(0,4) println(majorMinorVersion) } Output: 15.2 I have tried using Substring, and that works most of the time if the...

How to manage navigationBar as Instagram does? Hello I've been struggling with this issue Using fragment manager I add "addToBackStack(null)", then sometimes when I press back, it jump from one section of the navigation bar to another, instead of going to the parent fragment hierarchy. What I was looking was something like this In which, when you go from 3, to 2b, and then you press back, instead of going to 3, you go back to 2a. Just like instagram does...

How to display an icon when swiping items in recyclerview with item touch helper I implemented an item touch helper callback to be able to swipe items in my recycler view,but i want to display an icon when an item is being swiped This is my ItemTouchHelper code val itemTouchHelperCallback = object: ItemTouchHelper.SimpleCallback( ItemTouchHelper.UP or ItemTouchHelper.DOWN, ItemTouchHelper.LEFT ) { override fun onMove( recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder,...

Using nested CoroutineScopes to upload images and keeping track of them I am a newbie to android coroutines my requirements Need to upload 20 images Keep track of upload also (at least when it gets finished I need to hide progressBar of each image) After uploading all the images need to enable a "next" button also Here is my try: private fun startUploading(){ // Get AWS data val accessKey = sharedPreferences.getString(getString(R.string.aws_access_key), "").toString() val secretKey = sharedPreferences.getString(getString(R.string.aws_secret_key),...

How to check what components an object consists of? When I receive an object, I want to know how to check what components the value consists of. inputData?.let { val detail: MutableState = mutableStateOf(null) detail.value = inputData } I want to read components of inputData. I'd like to check how the components of input data are made.

Hashmap is empty when access from child class I have a parent class that has a hashmap in it as field and it gets initialize when a parent method is called from child class(checked witch debugger hashmap had 1 entry when method is about to return), but when the second parent method is called from child class that uses hashmap,the hashmap is empty, checked from debugger its not initializing again any where, is it deep copy of object issue? how to solve it Thanks in advance!

intent.getParcelableExtra is returning null inside of Item<GroupieViewHolder>() bind function I am using kotlin have a Parcelable to pass data from. I am trying to pass that Parcelable data to another activity. When I use intent.getParcelableExtra inside of the onCreate method, it will display the data in the Parcelable and in the new activity I'm trying to pass it to. However, if I use another class to that is type Item(), the intent.getParcelableExtra will return null. I have noticed that the intent in the onCreate Method and the intent inside the bind function for the class of type...

Why does MediaStore.getMediaUri() return an empty cursor? I'm currently making a transition to the Scoped Storage environment. When I first saw the MediaStore.getDocumentUri() and getMediaUri(), it seemed very useful. But after a few tests, it turned out it's completely useless. Tell me if I'm wrong, but to me, MediaStore.getDocumentUri() seems like it only takes URIs that are originally obtained via SAF. That means it can only convert the URIs back that were previously converted using MediaStore.getMediaUri(). Otherwise, I get SecurityException....

Produce output, that counts by 10, from 1000 to 0 using a while loop (Kotlin) The title speaks for itself. I know how to create a while loop count down from 1000 to 0, that counts down by one: fun main(args: Array) { var i = 1000 while (i > 0) { println(i) i-- }} BUT, I need to count down by ten: 1000, 990, 980. I'm struggling to wrap my head around it for whatever reason. Willing to lend me a hand? (Please provide explanation. I don't just want the answer, as I want to understand! I appreciate you all!)

Attempt to invoke virtual method 'java.lang.String at.huber.youtubeExtractor.YtFile.getUrl()' on a null object reference In the first install application in my physic device. I really can download video from youtube to my device's storage. But the next time, my application crashed immediately. I am able to download some videos to storage but when I do the same with some more videos it cannot. Then Android Studio IDE announce to me error in line init String downloadURL like title of this question. This is my code: String youtubeLink = ("" + videoYT.getId().getVideoId());...

Kotlin generic type extension with reflect fun T.convertTo(r : KCallable) : R { val that = this with(r) { val propertiesByName = that::class.memberProperties.associateBy { it.name } callBy(parameters.associate { parameter -> parameter to propertiesByName[parameter.name]?.get(that) }) } } I want to write a generic converter function to convert an object to another, the code like as above. Compiling with error for this line parameter to propertiesByName[parameter.name]?.get(that) Type...

can't download excel in android webview using Download Manager I display web url in android webview. then on the web have a download report menu (.xls) I've tried to use the download manager so I can download it through the webview that I created. but the result is always failed. If needed this is my code webview.setDownloadListener(object : DownloadListener { override fun onDownloadStart(url: String, userAgent: String, contentDisposition: String, mimetype: String, contentLength: Long) { val request =...

Populate RecyclerView with Firebase Realtime Database References I'm trying to create a category RecyclerView for the HomeFragment and I'm having a problem with setting my category and categoryImage in the onDataChange() function on my addValueEventListener. How can I do a for loop to get all of my references under my job-category reference? Thank you! Database Reference Category.kt data class Category constructor(val category: String, val categoryImage: String)...

Moshi: Getting Null values to pass through Retrofit 2 from an API Response The API I am calling has a response that looks like this... [ { "id": 755, "listId": 2, "name": "" }, { "id": 203, "listId": 2, "name": "" }, { "id": 684, "listId": 1, "name": "Item 684" }, { "id": 276, "listId": 1, "name": "Item 276" }, { "id": 736, "listId": 3, "name": null },...

Getting java.lang.reflect.InvocationTargetException (no error message) when adding @AndroidEntryPoint to sub class of FirebaseMessagingService FirebaseMessagingService sub class @AndroidEntryPoint class FCMService : FirebaseMessagingService() { @Inject lateinit var authManager: AuthManager override fun onCreate() { super.onCreate() } } Manifest declaration of service class Error message when run with stacktrace Execution failed for task 'appkaptDebugKotlin'. A failure occurred while executing org.jetbrains.kotlin.gradle.internal.KaptWithoutKotlincTask$KaptExecutionWorkAction...

Android DatePickerDialog Show only current month remain dates selectable I am trying to show only the current month with the remaining dates selectable in Date Dialog Piker. My Code: val calendar = Calendar.getInstance() //getting current day,month and year. val year = calendar.get(Calendar.YEAR) val month = calendar.get(Calendar.MONTH) val day = calendar.get(Calendar.DAY_OF_MONTH) val...

How to toggle GoogleMaps.setOnMapClickListener? I have a button on map which toggle some features with clicks on map so i need onMapClickListener setted. If i click button again i want to disable onMapClickListener because feature is disabled. So how can I toggle my setOnMapClickListener? mapRangeCalculationBtn.setOnClickListener { viewModel.toggleRangeCalculation().also { enabled -> if (enabled) { //enabled onMapClicks here } else { //disable }

Compose error - "Unresolved reference: align" after importing I was trying to study android jetpack compose and I have found some errors in my code. 'Modifier' has .align attributes but it doesn't work... Other padding, clip, etc is working right. I use Android Studio Arctic Fox | 2020.3.1 Patch 3 Build #AI-203.7717.56.2031.7784292, built on October 1, 2021 Runtime version: 11.0.10+0-b96-7249189 amd64 Kotlin 1.6.0 My full code: package com.joung.week2_layout import android.os.Bundle import androidx.activity.ComponentActivity import...

Kotlin to Java interoperability in hierarchial interfaces I have two modules defines like this: interface Module { val parameter: JSONObject } abstract class FirstModule: Module { abstract val message: Message } .... // many more Modules I created a base listener interface for Module and another for FirstModule: fun interface ModuleListener { fun ready(module: Module) } fun interface FirstModuleListener: ModuleListener { fun ready(module : FirstModule) override fun ready(module: Module) { ready(module as FirstModule)...

Facebook profile picture is not loading in my app I have implemented Facebook SDK and Firebase implementations. I am trying to display name, email, and profile picture of the user who signs in with Facebook. Name and email are getting loaded but the profile picture is not getting loaded. Here is the code: Kotlin Code auth= FirebaseAuth.getInstance() val currentuser = auth.currentUser email.text=currentuser?.email val photourl = currentuser?.photoUrl.toString() Log.d("url","URL of profile image is $photourl")...

Databinding in recyclerview using kotlin causing issue Here is my app-level gradle file apply plugin: 'com.android.application' apply plugin: 'kotlin-android' apply plugin: 'kotlin-android-extensions' apply plugin: 'kotlin-kapt' android { compileSdkVersion 31 buildToolsVersion "30.0.3" defaultConfig { applicationId "com.app.myapplication" minSdkVersion 19 targetSdkVersion 31 versionCode 1 versionName "1.0" multiDexEnabled true testInstrumentationRunner...

Not sure how to convert a Cursor to this method's return type after Kotlin update to 1.6.0 I was using Android Room library in my project to manipulate data from my SQLite database and everything was working fine in previous Kotlin version (1.5.31). Here is a sample of my DAO: @Dao interface ServersDao { @Query("SELECT * FROM servers ORDER BY connectedDevices, ping ASC LIMIT 1") suspend fun getLeastLoadedServer(): Server @Query("SELECT * FROM servers ORDER BY ping,...

Reactive list on Android from Firebase Firestore I'm trying to get a RecyclerView to update once I have downloaded some data from Firestore but it doesn't seem to update the UI when the data changes. Here is the main activity: class MainActivity : AppCompatActivity() { private lateinit var dbService: DatabaseManager private var mBound: Boolean = false private val restaurantListModel: RestaurantList by viewModels() val data = ArrayList() val adapter = RestaurantListAdapter(data) /** Defines callbacks for service binding, passed to...

JOOQ codegen generates different copying constructor if using custom data type converter I'm using jOOQ 3.15 and faced weird generator behaviour Codegen generates little different copying constructor for Records if you using converter for custom data types. I'm trying to implement org.joda.money.Money integration with our entities Some example entity create type pg_money as ( amount numeric, currency varchar ); create table test_money( id uuid primary key, money pg_money not null ); Our custom converter: class PostgresMoneyConverter : Converter { override fun from(t:...

Kotlin 1.6.0 breaks KTS completely! kotlin-script-runtime doesn't support bytecode >55 (Java 11) I'm using 17 for the Gradle toolchain with this: java { toolchain { languageVersion.set(JavaLanguageVersion.of(17)) } } Yet NONE of my .kts scripts build after updating to Kotlin 1.6.0 because it seems that kotlin-script-runtime doesn't support Java bytecode past 55, which is Java 11! java.lang.UnsupportedClassVersionError: org/nr/game/types/npcs/builder/NPCTypeScript has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of...

How to schedule different works as a unique work? So I replaced all of my Jobs to these Work representation. I have two problem in the current state of refactoring. I have many worker classes, let's say these are W1,W2,W3... My problem is, when I schedule a work as onTime and periodic as well. I use uniq works with uniq tags. My problem is, when I queue W1 as a periodic with "W1_TAG" tag and after that I would like to create a onTime from W1 with the same tag, it doesn't starts, because there is an another Work with the same tag. I would...

How to write a coroutine function in BaseViewModel that can be used in child ViewModel I write a BaseViewModel below open class BaseViewModel : ViewModel() { private val coroutinesScope = CoroutineScope(Dispatchers.Default + Job()) val errorMessage: MutableLiveData = MutableLiveData() } use child viewModel extend it and it works. (getUserProfile() is a suspend function) class AAA : BaseViewModel() { fun getUserProfile() { coroutinesScope.launch { try { ApiService.Account.getUserProfile().let { profile ->// works...

@JvmStatic used for @Provides function in an object class import dagger.Module import dagger.Provides @Module object MyModule { @JvmStatic @Provides fun provideHelloWorld(): String { return "Hello World!" } } Above is my code. But AndroidStudio says "@JvmStatic used for @Provides function in an object class". What is the reason?