ImageView above BottomAppBar I need to place a picture between the top border of the parent and the top border of the BottomAppBar, but when I do this, my BottomAppBar does not look right: My layout

how to fix java.lang.ClassNotFoundException: kotlin.String I'm trying to load kotlin.String using SystemClassLoader inputClassName = String::class.qualifiedName.toString() val input = ClassLoader.getSystemClassLoader() .loadClass(inputClassName) // here I get error and I'm getting error. Stack trace: Exception in thread "main" java.lang.ClassNotFoundException: kotlin.String at java.net.URLClassLoader.findClass(URLClassLoader.java:382) at java.lang.ClassLoader.loadClass(ClassLoader.java:419) at...

How to detect if user pressed back button and navigates back in app inside a fragment in Kotlin? I'm using navigation component, and I wanna detect when user navigates back from fragment B -> A, so I can save a note in room database table created in fragment B before navigating back to fragment A (I'm making a note app, and I wanna save notes just like Google keep note app does).

Get value from java application class in kotlin service i have a java application class and i want to get a value from it in kotlin service . i try to do it with this code but it's return null myValue = (application as App).getNumValue some of my code Application Class: private String numValue = ""; public String getNumValue() { return numValue; } public void setNumValue(String numValue) { this.numValue = numValue; } java Activity for set value : ((App) this.getApplication()).setNumValue(enNum); Kotlin Service And Read Value...

WebView Video fullscreen button greyed out when I am playing a video on a WebView the fullscreen button is greyed out. I tried many WebChromeClient online but with no success. I'm using Kotlin.

Dynamically created Imageviews randomly begin setting width/height to 0, Don't know what else to try [Kotlin] Thanks in advance :) Context I have a game that is running at ~120 FPS and it dynamically creates multiple imageviews that move around the screen. These imageviews last for 5 seconds and then are made invisible and the code stops interacting with those objects. Then new Imageviews are created to replace them that last 5 seconds so on and so forth. Problem At a completely random time during the program the dynamic imageviews start to have 0 width and height so I can not see them on screen....

How to dependency-inject CqlSession? In order to use ShedLock with Cassandra, I need the CqlSession to create a CassandraLockProvider, according to the docs. However, I always get the following error: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.datastax.oss.driver.api.core.CqlSession' available: expected at least 1 bean which qualifies as autowire candidate....

Draw area chart in Android I am looking to implement an Area chart graph in Android. I will pass [(X, Y)] data points as input and need to draw it. I tried various methods suggested on the internet, however, the results are not as expected. I want to draw the chart something like below: The above sample image is from the Highchrats.js library. Any idea or suggestions will be highly appreciated.

(Android Kotlin) How to retrieve the image "Name" from firebase storage on a Button click in a recyclerView? Goal: To retrieve the default image "name" from the images present in firebase storage, on click of a button, such that the name can be stored in a local txt file. (which will be used to filter out images later on). Setup so Far: Have created the recyclerView which is displaying images from the firebase storage in a cardView. Each card in the recyclerView contains only the image and a button, "doneButton". Have already created and tested the code to save strings in a local txt file. Where...

How to get rid of Incremental annotation processing requested warning during the build? I have just started using android development. I am facing this warning message [kapt] Incremental annotation processing requested, but support is disabled because the following processors are not incremental: io.realm.processor.RealmProcessor (NON_INCREMENTAL). I got a warning when I was programming with the book as a reference. I've looked into several solutions and tried, but couldn't find a solution. Please give me some advice. <a...

Feign dynamic headers on top of predefined headers I want to create a Feign client that always uses the same set of headers, but I also need to add the dynamic accessToken header on top of the ones that are predefined. The way I currently have it is this. interface ApiClient { @RequestLine("GET /accounts") fun fetchAccounts( @HeaderMap headerMap: Map ): AccountsResponse } This means I have to always pass-in all the headers. I do that like so. private fun createHeaderMap(accessToken: String) = mapOf(...

RX How to subscribe only to specific events on a Subject I would like to know if it is possible using a Subject to only subscribe to specific type of events For example I have an enum of ANIMAL enum class ANIMAL { DOG, CAT, PARROT } Then I create a subject val animalSubject: PublishSubject = PublishSubject.create() but I want to Subscribe only to CATS how do it? This receives the events of all animals. animalSubject.subscribe { println("I want only Cats here $it") } I want to Subscribe only to Dog. I can use a filter here but it will...

RxJava: merging observables on different threads I need to merge two observables running on different threads. Sample code is val obs1 = Observable .create { emitter -> emitter.onNext(1) emitter.onComplete() } .subscribeOn(Schedulers.newThread()) val obs2 = Observable.just(2) val obs = Observable .just(1, 2) .flatMap { Observable.merge( Observable.just(it).filter { it == 1 }.flatMap { obs1 }, Observable.just(it).filter { it == 2 }.flatMap { obs2 } ) }...

Databinding - Lambda expression must be resolved to its setter first to get the type I'm starting with Databinding, but I can not run the project once I create an onClick function, this is my layout .... The issue that it appears only when I run ./gradlew appkaptDebugKotlin --stacktrace it points on the onClick() mehtod Also this Caused by: org.gradle.workers.internal.DefaultWorkerExecutor$WorkExecutionException: A failure occurred while executing org.jetbrains.kotlin.gradle.internal.KaptExecution Caused by:...

How to share cookie between Webview and Retrofit2 Okhttp3 I have a site with 2 requests: The first is to see the basket without the need to login. GET https://www.ah.nl/mijnlijst2 The second is the request to insert an item in the basket. POST https://www.ah.nl/common/api/basket/v2/add { "items": [{ "quantity": 1, "id": 395948 }] } In my App I've done 3 things: Initialize the cookie using a hidden webview: initializeWebView(binding.webView, "https://www.ah.nl/mijnlijst2") var myCookie = ""...

What is the best way to place banner in my app with viewPager? I have screen with viewPager on it. What would be more effective: show banner in card every N cards or place one static banner below the viewPager?

Exactly same size for all screens physically in Android how is it possible that dimensions of any object physically same size on all screens?

How can I find the biggest value in the response? I have the following response how I can go throught it to find the biggest card Rank? Card Rank it is Enum The goal: find the biggest card to know who wins in the game [Hand(player=Player(name=Tesla, money=1300), firstCard=Card(rank=CARD_2, suit=DIAMOND), secondCard=Card(rank=CARD_5, suit=HEART)), Hand(player=Player(name=Uber, money=1500), firstCard=Card(rank=CARD_4, suit=SPADE), secondCard=Card(rank=CARD_4, suit=CLUB))]

How to bind the entity class and isnert it in jdbi? I want to run Insert on a table in a postgresql database using jdbi. I want to run the insert statement without specifying a column name, just assigning a class generated by Entity. The class below is an auto-generated tessttable class(using Kotlin). ''' @Entity @Table(name = "testtable", schema = "public", catalog = "testdb") open class testtableEntity{ @get:Id @get:Column(name = "path", nullable = false) var path: String? = null @get:Basic...

Kotlin application drawing navigation using recursion I am working on a android application project using Kotlin which should navigate the user to any room in a building. The user should type in the name of the room/room number and a map of the building layout should display the path the user should take to get to the room from the entrance of the building. I wanted to solve this by somehow make a graph of points overlaying the building plan and use a recursive function to draw the path to a specific room. My problem is I don't know how to do...

Can you tell me what's Wrong in this Bmi Calculater App android studio kotlin? hey all i am new in android i have made simple BMi calculater in this you have spinner to select value i have to make a calculater which can change value after select spinner, I am not getting any error but i am note able to see answer please do check what have i done wrong in this ' class MainActivity : AppCompatActivity() { var valueofHeightInCm: Double = 0.0 var valueofHeighInInch: Double = 0.0 var valueofHeightInMeter: Double = 0.0 var showResult: Double = 0.0...

Need ideas in calculating timestamp difference in Firebase Realtime DB - Kotlin I am working on an android app where multiple clients might update a particular node at the same time. I am using Transaction function and updating the node one user at a time and while doing so I'm updating timestamp in a child using SERVER.Timestamp. Now the real problem is, I need to reject all other clients who are trying to update the node within 5 seconds after the first user updated it. I thought of retrieving the current server time from firebase and subtract it with timestamp...

Data Class and properties from other Data Class I'm downloading few lists (RawAlbum, RawPhoto) from the web and I want to use properties from them to create another list. Then I want to use it to make a recyclerview. So that's how it looks. It is the ListItem: @Parcelize data class ListItem( val id: Int, val title: String, val albumTitle: String, val thumbnailUrl: String ) : Parcelable So I want to use the id and title from the RawAlbum. While the albumTitle and thumbnailUrl from the RawPhoto. RawAlbum: @Parcelize @Entity(tableName...

Android notification doesn't pop up I'm trying to create a simple Android program (in Kotlin) which should display a notification after 10 seconds. I can see the notification after opening the quick settings and scrolling down, but it doesn't pop up at the top automatically. This is the relevant code: lateinit var notificationManager: NotificationManager lateinit var notificationChannel: NotificationChannel lateinit var builder: Notification.Builder val channelId = "com.example.vicky.notificationexample" val description =...

FATAL EXCEPTION : AsyncTask #1 while downloading content I am building an android app and I am using firebase. When I try to download data from firebase on my android app it show me AsyncTask #1 error. I am a newbie in this field and I am trying to learn the basics of android development. Here's the code inner class DownloadFileFromURL : AsyncTask() { override fun doInBackground(vararg p0: String?): String? { //file download path val downloadFolder =...

Http request intercept not showing any log info I am trying to intercept an http request to see what the actual data sent and received is, however nothing shows up in my log. @WorkerThread suspend fun webData() { val interceptor = HttpLoggingInterceptor() interceptor.level = HttpLoggingInterceptor.Level.BODY val retrofit = Retrofit.Builder().baseUrl(WEB_SERVICE_URL).addConverterFactory(MoshiConverterFactory.create()).build() val service = retrofit.create(GetService::class.java) val serviceData =...

Update Firestore document map from several users I have been trying to update a map in a document looking simplified like this: Map{ [ key: timestamp + PlayerId (concatenated) value: actionId, playerId, timestamp e.t.c ], e.t.c. } What might happen rarely is that me and another users using this document wants to add an event to the map in close intervals. What happens is that I successfully inputs the event but the other will loose its event. The problem is that the other person have to update its document...

RecyclerView Observer, fragment not updating data My MainFragment contains a RecyclerView of educational paths, when an item is selected it takes CourseFragment with a different RecyclerView of relevant courses. However, if the user goes back to the first RecyclerView and chooses a different path, the same data items show up again. Course Fragment class CourseFragment : Fragment(), CourseRecyclerAdapter.CourseItemListener { private lateinit var viewModel: CourseViewModel private lateinit var recyclerView: RecyclerView...

Cyrillic input not recognized in Kotlin NAtive Below you may find a screenshot with the simplest Gradle - Kotlin|Native project: You may easily notice that the English input is being recognized perfectly, while the Cyrillic input gives the blank result. Can anyone explain what's wrong with Kotlin interpretation of foreign codepages? Thank you/

ViewModel prevent refetching of data My viewModel refetches my data causing my shimmer to keep executing each time I get to this fragment, and also the data is beign refetched which is making my bill goes up on Firebase How can I prevent to refetch again the data each time my fragment pops up ? From my view viewModel.fetchShops(location).observe(viewLifecycleOwner, Observer { when(it){ is Resource.Loading -> { shimmer.visibility = View.VISIBLE...