Incorrect image display in StaggeredGridLayoutManager I have a RecyclerView in which the StaggeredGridLayoutManager is located. My problem is displaying images in StaggeredGridLayoutManager: As you can see in the image, there are gaps and I would like StaggeredGridLayoutManager to somehow adapt the image size XML RecyclerView item Adapter override fun...

Missing userDetailsService using Remember Me option I need to enable Remember Me option in my Spring Boot + Spring Security project but I'm getting an error while I'm logging-in in my application. In my Spring Security configuration class I have this: @Configuration @EnableWebSecurity class WebSecurityConfig : WebSecurityConfigurerAdapter() { override fun configure(http: HttpSecurity) { http .authorizeRequests() // ... matchers ... .anyRequest().authenticated()...

Calling properties of the bodyIN from SoapSerializationEnvelope I have a SOAP service through which I need to extract the data from XML Response. My code has been working fine, as in, I see the response in the debugger: I need to print this out and here is my code: import org.xml.sax.InputSource --- private fun extractDataFromXmlResponse(envelope: SoapSerializationEnvelope): List { // Initializes a list to add elements (cities). val citiesList =...

Your game has incorrectly implemented the following Play Games services: Achievements I have read the other posts on here but cannot find an answer. I have the alert: Your game has incorrectly implemented the following Play Games services: Achievements That links to here: https://support.google.com/googleplay/android-developer/answer/3433208#games_alerts which states: Achievements: This game has created achievements in the Play Console but...

Parse Mutable Live Data to Array in Kotlin There is a mutableLiveData Holding 2 array "deal" and "category" I need to parse this both in different adapters. Is there a way I can convert 1 mutable live data to 2 array and then parse them to two different adapters Suppose There is MutableVariable Name se private lateinit var mHomePojo: MutableLiveData> having parse Json as below { "status": 0, "response": "success", "category": [{ "categoryName": "demo", "categoryDesc":...

Mapbox Map Kotlin annotation plugin - required 'style', found 'style?' I really need some advice on this. Im trying to get the Mapbox Annotation Plugin to work. on https://docs.mapbox.com/android/plugins/overview/annotation/ it says to create a SymbolManager like this: // create symbol manager object val symbolManager = SymbolManager(mapView, mapboxMap) On "SymbolManager" im getting the error: None of the following functions can be called with the arguments...

How to mock a function with mockito val listener = mock Unit>() How do I create a mock like this? The compiler always complains about it. I want to check if a listener gets invoked later on. I tried latest mockito 3.1 and also 2.28.2 (Android Versions).

IllegalStateException: must not be null of Spock unit test with Kotlin business logic I try to get a MongoTemplate (Spring Data) worked with my Spock spec test. I use Kotlin as language for the business logic. Please see my specification logic: @SpringBootTest class BookingServiceSpec extends Specification { BookingService bookingService; BookingEntity bookingEntity CustomerEntity customerEntity MongoTemplate mongoTemplate; def setup() { bookingEntity = GroovyMock(BookingEntity) customerEntity = GroovyMock(CustomerEntity)...

distanceTo method gives no result, returns always 0.0km i'm trying to get the distance between two locations, but i always get the result of 0.0km. i have tried 2 versions, but both of them give me the result of 0.0km. 1. Version with LatLng 2.Version with location //this version is with the location private fun onLocationchanged(location:Location):Float { if(mStartLocation == null) { mStartLocation = mCurrentLocation mEndLocation = mCurrentLocation } else { mEndLocation...

Kotlin query string I'd like to optimize my code by doing a single query every 200 elements of the json. Is it possible to do this with a query string? if so how? My code: fun update(json: JsonArray) { try { json.forEach { element -> var a= (singleStatus as JsonObject).get("a").toString() var b= (singleStatus as JsonObject).get("b").toString() service.update(a, b) } } catch (e: Exception) { logger.error("Error" + e.message) } } fun...

Kotlin groupBy with range Any method to use groupBy extension function of kotlin with custom range on the selected key e.g group all similar items with age less then 2 years apart from each other using list.groupBy{ it.age } Will iterating the list and writing my own logic the only way for this ?

MockK System.getenv only Language: Kotlin The goal is to test a method that calls System.getenv internally, I'd like to make this method produce a predefined result Tried: mockkStatic(System::class) every { System.getenv(any()) } answers { when { firstArg() as String == "clientId" -> "aaa" firstArg() as String == "clientSecret" -> "bbb" else -> throw IllegalArgumentException("something went wrong") } } mockkStatic(System::class) This...

"MediaStore.Images.Media.DATA" Alternative I am in the following situation: I want to get the path of an Uri and this solution works fine. fun getPath(context: Context, uri: Uri): String { var result: String? = null val proj = arrayOf(MediaStore.Images.Media.DATA) val cursor = context.contentResolver.query(uri, proj, null, null, null) if (cursor != null) { if (cursor.moveToFirst()) { val column_index = cursor.getColumnIndexOrThrow(proj[0]) result =...

How to read data in a List using firebase I can't get my data in a list using my loadData() function. however, My Log shows the exact data needed in that list fun loadData(){ var ref = FirebaseDatabase.getInstance().getReference("users") val menuListener = object : ValueEventListener { override fun onDataChange(dataSnapshot: DataSnapshot) { val Children = dataSnapshot.children for (c in Children) { Log.d("My name equals",...

Dynamically inject class in spring I want to inject a class dynamically based on the argument of my method call I`ve try use AspectJ and different annotations of Spring I need a solution like that: @Component class MyUseCase(private val spi: MySpiPort) { fun myAction() { spi.doSomething("myId") } } interface Injectable interface MySpiPort : Injectable { fun doSomething(id: String) } class MyProxyClass { //will intercept all Injectable fun resolver(id: String): MySpiPort { if(id ==...

Why and how Kotlin coroutine prevents blocking of a thread, even without "suspend" keyword? I came across some unexpected behavior while using coroutines in Android app. Suppose I've got the following function, which is not "suspend". It starts worker threads and should block the calling thread until all workers terminate: fun doSomething() : Result { // producers init thread Thread { for (i in 0 until NUM_OF_MESSAGES) { startNewProducer(i) // each producer is a thread } }.start() // consumers init thread Thread { for (i in...

Passing different values for Shared Preferences I'm an inexperienced Android learner here! So I'm learning, and on my project, I have to use the url and shared preferences (Volley) to show the items in Recycler View. So the categories take user_id and api_key as parameters, and after that the subcategories take user_id, cat_id, and api_key as parameters. I used JSONObject to parse the categories, and I tried to save the category ids in shared preferences. So after that in the SubcategoryFragment, I called the shared preferences again,...

In Fragment menu showing extra space Kotlin I am developing an android app and I am using the menu drawer and when the user changes the menu item I need to set a custom title for each fragment. I have set the title it is working as expected but there is some extra space is there as shown in the below image. I have tried these: Set setHasOptionsMenu(false) Set setHasOptionsMenu(true) and set onCreateOptionsMenu and inside onPrepareOptionsMenu set...

How to wait for multiple jobs in Android ViewModel? Given the following components data class Account(val name: String) data class GetAccountRequest(val name: String) @Dao interface AccountDao { @Query("SELECT * FROM accounts ORDER BY name ASC") fun all(): LiveData } interface AccountOperations { @GET("/foo/account") suspend fun getAccount(@Body request: GetAccountRequest): Account } class AccountRepository(private val dao: AccountDao, private val api: AccountOperations) { val accounts: LiveData = dao.all()...

Is there, in kotlin and android, something similar to switchmap in rxjs or rxjava? I want to find out is there something similar to switchmap in kotlin and android (LiveData maybe). I need to change my request immediately after events that can happen very often and which determine what to request from the server, respectively, I only need the last request

Kotlin Spring cannot register bean in application context Hello I am a Kotlin and Spring newbie who is trying to register a named bean to application context as shown in Spring 5 Functional Bean Registration. However, the function signature does not match. Any helps are appreciated. I get the following error: Function signature error Here is the code in which I register beans: @Service...

How to load an image with fixed size in tornadofx's ImageView When I'm using JavaFX, Image with the tornadofx, everything works, but it's not async. imageview { image = Image(url, 200.0, 200.0, false, true) } so I'd like to do it the native tornadofx way, but I'd like to resize it as well. imageview(url, 200.0, 200.0, false, true) this constructor doesn't exist, but I can't really resize it, as there's no setHeight and setWidth methods I could use (at least I can't see them).

Copy video from gallery to other folder in Kotlin [duplicate] This question already has an answer here: onActivityResult's intent.getPath() doesn't give me the correct filename 1 answer <a href="https://stackoverflow.com/questions/35870825/getting-the-absolute-file-path-from-content-uri-for-searched-images"...

TextView: Fade out + Read More - Expand on click I'd like to fade out long Texts after a fixed number of lines in my app like they did it here in this css tutorial: https://css-tricks.com/text-fade-read-more/ But I have no clue what to google or how I can implement a behaviour likes this. Can anybode help me with some input?

How to obtain View objects on screen with AccessibilityService on android? I'm trying to create an android app that provides an accessibility service that when activated, it captures the whole screen content and the views inside it. I looked a lot in the Android documentation and I got the understanding that I can get the AccessibilityNodeInfo that has a lot of info about the screen content. The problem is that I want to have the Views themself. The AccessibilityNodeInfo provides className, packageName, childs, parents, lots of booleans regarding is it focusable,...

Change position of Info Window Adapter in Google Maps I am trying to implement a custom GoogleMap.InfoWindowAdapter which is displayed when a marker is clicked. The info window appears fine, but its default position is above the marker. Is there a way of changing the position of the Info window and make it appear below the marker? This is a snippet in my Fragment class where the markers are loaded:- MapFragment.kt private fun displayMarkersOnMap(markerData: MarkerData) { val markerOptions =...

Kotlin Coroutines vs CompletableFuture Can anybody explain me why people should use coroutines? Is there some coroutine code example which shows better completion time against regular java concurrent code (without magical delay() function, nobody uses delay() in production) ? In my personal example coroutines(line 1) are suck against java code(line 2). Maybe i did something wrong? Example: import kotlinx.coroutines.* import java.time.Instant import java.util.concurrent.CompletableFuture import java.util.concurrent.Future...

How do I create a Firestore Recycler Adapter using Kotlin? I want to start off and say that most of the code I got is from tutorials and reviewing code from others. I am having difficulty with creating a Firestore Recycler Adapter and most of the code I find is in java. I tried converting java code to Kotlin but it ends up not working, not sure if it is a syntax error on my part or just bad coding. I could use any help on what could be the issue. I created a Data Class model from java and when converted to Kotlin I am not sure how the data is taken...

Best way to instantiate an Android Room Entity object for insertion without specifying the PK? (Kotlin) In Android, when using the Room database and using an auto-generated primary key, your pk will be a field of the object and therefore will need to be set when you create a plain-old Kotlin object. So what is a correct and clean way to instantiate an object that you use for insertion? Say you have a table like so: @Entity(tableName = "data") class Data( @PrimaryKey(autoGenerate = true) @ColumnInfo(name = "id") val id: Int, @ColumnInfo(name = "some_data") val someData: Int ) If you...

Android Instrumented testing if the activity is opened via the onActivityResult callback I am developing an Android application using Kotlin. I am writing instrumented tests for my code. Now I am struggling to write an instrumented test for a particular functionality. Following is the scenario I want to write test for. I have three activities, LoginActivity, RegisterActivity and HomeActivity. LoginActivity starts the RegisterActivity using the startActivityForResult method. Then within the RegisterActivity, after registration, it finishes the activity using finishActivity...