The RecyclerView doesn't retrieve any data from Firebase and doesn't show any data I just started working with Android Studio, and I've been trying to figure out what's wrong with this code for a few days now. When I run the program it shows nothing, and also there is no errors from Android Studio. I read the posts on the subject, but unfortunately I found nothing appropriate. This is my activity class. package ie.wit.donationx.activities import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import androidx.recyclerview.widget.LinearLayoutManager import...

Cannot figure out how to store value that I get from location services and call the api using those values Inside my Fragment File Here I am try to call locationProvider to get the latitude and longitude. And once i get those i want to call api to get the weather data weatherApi. I cannot initialise variables inside locationProvider.lastLocation.addOnSuccessListener also i cannot call weatherApi inside the locationProvider.lastLocation.addOnSuccessListener as it suspend function. I tried many different approaches but nothing seems to work. Right now i am using global variable to store the value of...

How can we get the key of the current user from the realtime database when the key of the user is the username in KOTLIN This is our code, we just want to display the current user's key, that's it so how should be do that. Currently the code gives the output of all the keys and not the current user key As output we are getting the values : Asif, Test24 and Vaishnavi in the variable key The image is of the real time database

Should I get rid of big switch case? I have a factory which includes many HTML attribute generators which returns one of them based on the type of attribute, so I wanted to see if there is a better way of doing this. class AttributeHtmlGeneratorFactory { fun create(property: String): AttributeHtmlGenerator { when (property) { "animation" -> { return AnimationHtmlGenerator() } ... "left", "top" -> { return PositionHtmlGenerator()...

Auto scroll on Recyclerview I create a RecyclerView with auto scroll functionality using Runnable task. My list is scroll perfectly upto the end of the list. What I want - suppose there are 1-2-3 items in list then again show 1-2-3 after ending the list in RecyclerView. what I had done val partner_recyclerView: RecyclerView = findViewById(R.id.partnership_slider) var partnerAdapter : MyPartnerAdapter = MyPartnerAdapter(partnerImageList) var linearLayoutManager : LinearLayoutManager =...

Checking if entry exists I'm trying to create a login app. I want it to do nothing more than either store the account info on a db if the username is not already used. Problem is, no matter what I try, I cannot check if the username is already in the db I've tried to get both LiveData from my query, as well as String?, as shown below with no success @Entity(tableName = "Users_table") data class User( @PrimaryKey var username: String, @ColumnInfo var firstName: String, @ColumnInfo var lastName: String,...

Viewpager2 is not loading fragment on clicking tab ,but works on swiping I am using ViewPager2 with Tablayout . Initially everything works fine. ie, both swipe and clicking on Tab ,loads the correct fragment. Say I have 3 fragments Tab A, Tab B and Tab C. I need to open other fragments from Tab B ,say Tab B1.Tab B1 is opened and on pressing back button it goes back to Tab B. Now when I click on Tab A, it higlights TabA, but the fragment for Tab A is not loaded. But if we swipe, its working properly . Below is my Viewpager code. ViewPager code private val...

How to inject interface into class with Hilt in Android In my application I want use MVP structure and for this I create Contracts file. Contract codes: interface ShopContracts { interface View { fun showAllData(data: List) } interface Presenter : BasePresenter { fun loadAllShop() } } I use this interface into presenter class, in this class I want set 2 file in constructor such as below : class ShopPresenter @Inject constructor(private val repository: ShopRepository, private val view: ShopContracts.View) :...

How to import a Kotlin Library in IntelliJ So i want to use the Serialization Library in my kotlin project, and from what i can gather from this page, i must use this: "org.jetbrains.kotlinx:kotlinx-serialization-json:1.3.2", to do so, now i use "IntelliJ" as my build system, so i went to the project structure, and in libraries, clicked the + sign, clicked on "From Maven" and put this as the link to the library, and it...

Kotlin: Type inference failed. The value of the type parameter T should be mentioned in input types I'm new to Kotlin, for the piece of the below code: fun a(stcd: String) { val res = mutableSetOf() val aaa = mutableListOf() aaa.stream().filter { x: Map -> x.isNotEmpty() } .filter { x: Map -> x.values.contains(stcd) // throws error }.forEach { x: Map -> x.forEach { (k: String, v: Set?) -> res.add(k) } } } Could anyone point out why contains throws error:Type...

Is green Dao supported by kotlin? I'm converting my existing java project into the Kotlin , while during this I come across the problem that unresolved ref to 'dao', I tried changing the sequence of greendao & Kotlin dependency as but still facing the same issue

Couldn't make a guess for com.Rapcrushers.app.customviews.MageNativeTextView I am receiving the error "Cause: couldn't make a guess for com.Rapcrushers.app.customviews.MageNativeTextView" while rebiulding the project. I think this issue is because of the capital "R" in package name of my app. But i can't change it to small "r" since app is already live on play store and have 1000(s) of installs on it. Please suggest a solution to fix this without changing package name. Package name = com.Rapcrushers.app folder name = customviews Class name = MageNativeTextView ( A...

Android can not resolved method registerForActivityResult Added this dependency implementation("androidx.activity:activity-ktx:1.5.0") implementation("androidx.fragment:fragment-ktx:1.5.0") implementation("androidx.appcompat:appcompat:1.4.2")

Firebase not sending notifications after account change/replacing firebase account I am trying to implement how to push notifications from firebase. I have added the dependencies and made a project in my firebase account and connected my app. It initially worked fine but I changed the firebase account that is associated with the app to another(2nd account) then I saw that I did not receive any notification so I deleted my project on the 2nd account and replaced my json files with the first one and reconnected to it again but I am not receiving any notification which was...

Creating a matrix with values in Kotlin in convenience I want to create the following one with a fancy notation: arrayOf(intArrayOf(4, 5), intArrayOf(5, 8), intArrayOf(1, 9), intArrayOf(8, 10), intArrayOf(1, 6)) at least, cannot I achieve something that looks as follows: arrayOf((4, 5), (5, 8), (1, 9), (8, 10), (1, 6)) because it is pretty awkward to rewrite intArrayOf for each row to put in. Note that I do not ask for the following syntax I'm aware of which is used to initialize an empty matrix with values that are either same or following a...

Converting string into a date type in Kotlin I'm sending a date as a string to kotlin app: What i recive is: "7/07/2022" now I want to convert it into a date type and compare with today's date. Any ideas? I have to recive it as a string.

Android: How to get zip file by Intent? val intent = Intent(Intent.ACTION_GET_CONTENT).apply { type = "application/zip" addCategory(Intent.CATEGORY_OPENABLE) } startActivityForResult(intent , CODE) and in onActivityResult, I got 0 length of file override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) { super.onActivityResult(requestCode, resultCode, data) if (requestCode == CODE){ val uri = data?.data!! val...

java.lang.IllegalArgumentException: A required type converter for Dao is missing in the database configuration I have a type converter class but the app crashes when I try to use it in my database. Error message: java.lang.IllegalArgumentException: A required type converter (class com.example.weatherapp.util.WeatherTypeConverter) for com.example.weatherapp.data.database.WeatherDao is missing in the database configuration. code: @ProvidedTypeConverter class TypeConverter( private val gson:Gson ) { @TypeConverter fun toCurrentJson(current: Current): String { return gson.toJson(...

Android getCallerNumberVerificationStatus() always returns Connection.VERIFICATION_STATUS_NOT_VERIFIED I am implementing a Call Screening service to detect spam in Android by following the implementation here: https://developer.android.com/guide/topics/connectivity/telecom/prevent-spoofing?hl=bn-IN I have my call screening service setup, but I am always getting Connection.VERIFICATION_STATUS_NOT_VERIFIED when receiving a call. My onScreenCall override is run and I...

Getting response of a Chain of One Time Work Request in work manager in kotlin I have several worker classes that are scheduled as one-time requests, as below private fun createOneTimeWorkRequest(){ val imageWorker = OneTimeWorkRequestBuilder() .setConstraints(constraints) .addTag("imageWork") .build() val gpSurveyWorker = OneTimeWorkRequestBuilder() .setConstraints(constraints) .addTag("gpSurveyWork") .build() val villageSurveyWorker = OneTimeWorkRequestBuilder() .setConstraints(constraints)...

Change the SeekBar status with EditText and viceversa with 2 decimal space I could not find this use case where the seekBar has decimal value. I need a seekBar that ranges from 20,00 to 100000,00 ** First case: ** When the user scroll the seekBar it needs to reflect the progress to the Edittext ** Second case: ** When the user inputs a number ex(123,50) it has to reflect this value to the seekBar

Connecting Docker Container to Azure Application Insights I'm trying to monitor my services, which are running in a Azure Kubernetes cluster. I wanted to use https://docs.microsoft.com/en-us/azure/azure-monitor/app/java-in-process-agent. So I added (<a href="https://docs.microsoft.com/en-us/azure/azure-monitor/app/java-spring-boot" rel="nofollow...

How to deal with public and private key in a Spring Boot application? I would like to verify messages between clients with private and public key signatures in a Spring Boot application. What is the best way to do this? Any best practices?

Disable touch event for a sibling in a layout I've been trying to disable touch event for a fragment and app bar, but it's not working. I used view.isEnabled, isClickable and set to false, to disable touch event. fun disableClickWhenFabExpanded() { fragment_content.isClickable = false } fun enableClickWhenFabCollapsed() { fragment_content.isClickable = true } I don't know how to use onInterceptTouchEvent() on a fragment or view. I've been trying this way. fragment_content.onInterceptTouchEvent()and no...

Combine detectTapGestures and detectDragGesturesAfterLongPress? We need to be able to detect both taps and drag gestures after long press on the same component in Jetpack Compose. To detect taps we can do: Modifier.pointerInput(graphData) { detectTapGestures( ... ) } And to detect drag gestures after long press: Modifier.pointerInput(graphData) { detectDragGesturesAfterLongPress( ... ) } But it is not possible to use both at the same time, since the first detect* will consume the pointer events:...

Return two values from for loop in Kotlin I am trying to return two values from the array with the for loop, but am only getting the first value instead. data class Batches( var qty: Int?, var entries: List?, var entryIds: ArrayList?, var priceconfig: PriceConfig? ) { constructor() : this(0, null, null, null) } data class TruckEntry(var name: String?, var id: String?, var qty: Int?, var observed: Int?) { constructor() : this(null, null, null, null) } My function: private fun getBatchName(batches: Batches):...

Wrong navigation with TalkBack I have the following problem I have a layout with multiple views, one is a custom view which contains two textviews, lets say A and B, and a RecyclerView, lets call it C When I use TalkBack and I swipe right, it goes from A to B and from B to C correctly. When I go back it goes from B to A correctly, but when it focuses C (first element of the RecyclerView) and I swipe left, it jumps to the element that's before the custom view in the layout. Something like this: <a...

Search with jooq if a jsonb column contains a specific value doesnt work properly I have to create a query with jooq that checks to see if a jsonb column contains a specific value that I pass to it. I've tried doing something like this: jooq.selectFrom(Tables.TRANSACTIONS_TABLE) .where( TRANSACTIONS_TABLE.MESSAGE .contains(JsonNodeFactory.instance.objectNode().put("transactionId", transactionId)) ) .fetch { TransactionTable.fromRecord(it) } But I'm not really sure why it's not working, it's not...

How to get the value of another function synchronously I am using the ktor websocket module When I send data to the client, how do I get the data back from the client after this send? val result = serverSession.send(json) // result Just like this It is actually the Unit type But I want to get the String