Can't resolve 'kotlin' in '/home/marcin/Projects/EduKotlinAcademy/web/build/node_modules_imported/kotlinx-html-js' I started Kotlin/JS react library on kotlin frontend Gradle plugin. I have the following error:

Task webwebpack-bundle FAILED

js/kotlinx-html-js.js Module not found: Error: Can't resolve 'kotlin' in '/home/marcin/Projects/EduKotlinAcademy/web/build/node_modules_imported/kotlinx-html-js' @ ../node_modules_imported/kotlinx-html-js/kotlinx-html-js.js 3:4-42 @ ../node_modules_imported/kotlin-react-dom/kotlin-react-dom.js @ ./web.js FAILURE: Build failed with an exception. * What went...

Firebase setValue Error Having an error when using setValue when updating firebase database. Im not sure what the issue is. Error log output. val database = FirebaseDatabase.getInstance() val ref = database.getReference("users").child(firebaseUser.uid) val map = HashMap() map.put("username", username.toLowerCase()) map.put("email", email)...

How to finish AsyncTask with Intent while passing extra data? I am having a problem with Android programming in Kotlin. I have a near bog-standard LoginActivity from Android Studio. An inner class is provided with an AsyncTask to complete the login action in a separate thread to prevent the application from becoming unresponsive. My problem is that when I write my login code in the AsyncTask and provide the resulting output to the putExtra() function of an Intent, the resulting Intent does not have any information inside itself. Instead, I always get...

How to add new item in specific index? I new in kotlin , i want to update an item in lists. I use this code: var index: Int for (record in recordList) if (record.id == updatedHeader?.id) { index = recordList.indexOf(record) recordList.add(index, updatedHeader) } but it cant do this, because of ConcurrentModificationException

Start another app by link android How to start A application's specific activity in B application by link? Share a URI contains information about A's specific activity. If a user click that link in B app, start A app's specific activity. this is my AndroidManifiest.xml code. this is shareURI method. fun sendUri(videoId:String?, point:Long) { val sharedUri = "mine://photo?photo_id=$photoId&size=$size" val intent =...

Kotlin Unresolved Reference When Using Library I am writing an Android app in Kotlin. I am using this library. Following the instructions present at the bottom of the readme, I added the following line: implementation 'net.dean.kdownkdown0.4.0' in my "Module: app" build.gradle script. I also have the line jcenter() in my "Project" build.gradle script I then added the import net.dean.kdown.* in my imports in my "MainActivity.kt" file. As a test, I tried...

Kotlin spinner selecteditem is null I have a spinner in Kotlin and using kotlinx to import it to the code. This is the code in xml: And this is the code in kotlin: this.sp_from_country.adapter = this.adapter this.sp_from_country.setSelection(0) This is where I use the drop down list from a button click event this.currencyForm = getCurrencyCode(sp_from_country.selectedItem.toString()) The problem is selectedItem is always null. This is the full source code of my fragment package training.com.aaptraining.views...

postgesql Transaction isolation level 4 not supported I am Trying to create table (postgres + exposed + ktor + JDBC), i got that error. Find bellow the configuration i have : build.gradle compile group: 'postgresql', name: 'postgresql', version: '9.0-801.jdbc4' Hello.kt object Pays : Table() { val id = integer("id").autoIncrement().primaryKey() // Column val name = varchar("name", 50) // Column } fun main(args: Array) { Database.connect("jdbc:postgresql://localhost/my_db", driver = "org.postgresql.Driver", user = "user", password =...

Picasso Loading Fails in Kotlin (probably due to RxJava disposable) I'm trying to rewrite an app in Kotlin. Everything is working except the Picasso image loading. The error that I get is this: E/ConfigFetcher$fetchConfigObject: java.lang.IllegalArgumentException: Parameter specified as non-null is null: method kotlin.jvm.internal.Intrinsics.checkParameterIsNotNull, parameter drawable Seems straightforward, but I cannot figure out what is going on. This is all part of the initialization of the app, so let me first show the relevant parts of...

What is the equivalent of Python list, set, and map comprehensions in Kotlin? In Python, there are list comprehensions and similar constructs for maps and sets. In Kotlin there is nothing at all in any of the documentation with a similar name. What are the equivalents of these comprehensions? For example, those found in Python 3 Patterns, Recipes and Idioms. Which includes comprehensions for: list set dictionary Note: this question is...

How to use JUnit 5 with build.gradle.kts and kotlin? Java version java 10.0.1 2018-04-17 Kotlin version 1.2.41 Gradle version 4.7 it will be even better if we could use jigsaw module system

Could not complete scheduled request to refresh entries. ClientErrorCode: 3 Android Kotlin Let me get straight to the point here the error in the logcat is: Could not complete scheduled request to refresh entries. ClientErrorCode: 3 I have tested the Realm() part of the code and it fetched the right data. Basically, the app just crashes when it loads that Activity. All Im trying to do right now is post the itemName in each cell. If you guys need the logcat, just say so and I'll post it. Any other details needed too. This is the code for my Activity with a recyclerView with just...

Kotlin/Native Rest Api calls I am an android developer and I have just started learning Kotlin. I found it really interesting and I have started experimenting with Kotlin/native as well. So far for any Rest API call for android, I was using retrofit 2. Do you have any library suggestions for the Kotlin/Native

Can we build Kotin and Java Mix application? I started learning kotlin , but as I had good work experience in making android application in java language.So i want to use my native java experience with Kotlin.So I had some queries: If we used some of the files in Kotlin language and some in java? Does it affect at the time of uploading in playstore? Best way or tutorial to learn kotlin? I had also tried flutter but as I don't have much knowledge of dart language.So I switch towards kotlin. Let me know I am right or wrong?

Webflux statuscode can not be changed So I have one AuthenticationWebFilter to add a trigger when someone is Authenticated like this: val builder : HttpSecurity.AuthorizeExchangeBuilder = http .addFilterAt( CustomAuthenticationWebFilter(securityContextRepository), SecurityWebFiltersOrder.AUTHENTICATION ) .authorizeExchange().permitAll() And then in "CustomAuthenticationWebFilter" I change the statusCode with some logic, somethig like this: override...

Stop changing Tab Indicator color until and unless tab changed I have 3 tabs in my activity and tabs would not be changed by swiping or selecting on tab lablayout. But tab indicator color is change on clicking on tabs even though i stopped changing tabs by clicking. Following are my code to represent the tab layout. XML File : KT File : class CreateAccountActivity : BaseActivity(), CreateAccountDetailsFragment.OnCheckChanged, ChangeTabs { lateinit var verificationDetailsFragment: CreateVerificationDetailsFragment lateinit var...

What are the implementation of default accessors in Kotlin I have a class like this class Square(var width: Int, var height: Int) { var color : String = "red" } As my understanding Kotlin's compiler will consider width, height and color are properties of class Square and therefore it will generate setter and getter for these properties automatically. With property color, i guest the getter and setter of it should be liked this var color : String = "red" get() = field set(value) { field = value} But how about the default setter and getter...

Coroutines Handler like behaviour In one part of my application I post runnable to a Handler, then the code inside run() executes and posts the same runnable to Handler with postDelayed(). This creates something like loop. Is this behaviour achievable with coroutines? I tried to use channel, but I couldn't get it to work.

Horizontal recyclerview - How to set padding? I have recyclerview with LinearLayoutManager set to horizontal. I made LinearSnapHelper to snap items to the center, but first item is still snapped to the right and last item is snapped to the left of the screen. I want to snap them to the middle of the screen. So recyclerview would "start" in a center of the screen but items will move through full width of the display as scrolling will occur. So I made custom ItemDecorator, but this doesnt work. All items will disappear from the view....

RecyclerView Items' values reset when scrolling down Here is the scenario of what I am trying to do: I am creating a RecyclerView that can add or remove one or more child item/fragment/view that has EditText(s) but.... Here is my problem: Whenever I scroll down in my RecyclerView, its items' value resets. I think the problem here is that the RecyclerView Adapter cannot bind or hold the values but I don't know where exactly is the problem in my code. class StocksAdapter() : RecyclerView.Adapter() { class StockFragmentHolder : ViewHolder {...

Why this code is not possible in Kotlin? Below is a perfectly construct in C++, C# and other similar languages. Why this is not possible in Kotlin open class EndPoint (url: String): T{ ... } class BlueEndPoint: EndPoint{} class RedEndPoint: EndPoint{}

android jetpack project gives archlifecycleversion buuld error I am new to android development and just created my first helo world project in android studio 3.2 ( canary ) following this tutorial. https://developer.android.com/jetpack/docs/getting-started and then I just did Build- > make project project tried to build and gave me following error. Could not get unknown property 'archLifecycleVersion' for root project 'JetpackHelloWorld' of type...

Callback get response Sync kotlin I'm tring to get the response of a callback in sync mode because I the value of the response is needed to all application to work, without this value ( token ) I can't continue to use the application. This is my companion object inside the retrofit interface. I need to set the token before creation of a client. What I'm doing wrong? companion object { var mToken = "" fun create(activity: Activity): MyPhoneInterface { Log.d("tokenMyPhoneInterface",...

kotlin Android studio listView in Fragment The listview shows in the first fragment properly, that is the first screen of my app. but if I put the list view in another fragment that is not the first screen of the app. The app will shut down when i click other fragments. Please kindly help to solve this issue. here with my code of FourFragment: class FourFragment : Fragment() { override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {...

How to create generic parameter type object at runtime [duplicate] This question is an exact duplicate of: How do I create an instance of a generic type? 2 answers I need to create the object of type T inside my class. The problem is that I can only use reified in an inline function (inside class) and cannot pass T to it. so how do I fix this i.e....

NavHostFragment not accessible from XML I wanted to try new Navigation library. After following this guideline I experienced error at runtime: Caused by: android.view.InflateException: Binary XML file line #11: Binary XML file line #11: Error inflating class fragment Caused by: android.view.InflateException: Binary XML file line #11: Error inflating class fragment Caused by:...

Spring Data DTO Projection with @ManyToMany field I've a User Entity that contains this field: @ManyToMany(fetch = FetchType.LAZY) @JoinTable(name = "FAVORITE_TAGS", joinColumns = arrayOf(JoinColumn(name = "USER_ID")), inverseJoinColumns = arrayOf(JoinColumn(name = "TAG_ID"))) @BatchSize(size = 24) val favoriteTags: MutableSet? = null And i defined the following DTO: data class UserProfileDto( ... val favoriteTags: MutableSet?, ... ): UserDto() Finally, this is one of the UserRepository methods (DTO...

Crypt java to js and decrypt Does someone knows how to encrypt in java and decrypt in nodejs ? No matter the algorithm, aes/cbc would be better but it doesn't matter. After days and days passing in searching a solution it seems that the algorithm is not the same in the two languages. Here is my code in kotlin/java: override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) val text = "Hello everybody !" val password =...

How to render WebRTC VideoTrack on SurfaceViewRenderer in Android? Before update WebRTC dependencies, I was able to render WebRTC VideoTracks on SurfaceViewRenderer like so: val videoView = findViewById(R.id.surface_view_renderer) videoTrack.addRenderer(VideoRenderer(videoView)) Since SurfaceViewRenderer no longer implements VideoRenderer.Callbacks interface, how can I achieve the same behavior above with updated WebRTC version?

how to send location to the server i cant send location (Latitude & Logitude) to the server in FireBase there value are allways = 0 , i am working of phone tracker application , i used kotlin in my application and that's the code of getting Location ..... please help me soon fun getUserLocation() { var myLocation = MyLocationListener() val locationManager = getSystemService(Context.LOCATION_SERVICE) as LocationManager locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 3, 3f,...