implementation 'com.jmedeisis:draglinearlayout:1.1.0' showing error started a new blank template project and just after adding draglinearlayout dependency i started getting these errors, while before adding this dependency i ran my project and it worked fine. the error is as follows Execution failed for task 'appcheckDebugDuplicateClasses'. A failure occurred while executing com.android.build.gradle.internal.tasks.CheckDuplicatesRunnable Duplicate class android.support.v4.app.INotificationSideChannel found in modules core-1.5.0-runtime...

how to get current position in ARCore? I'm making a hide-and-seek game app with Android studio. So my application needs to know the location information of each player's device (no coordinates are required, like GPS). At first, this video ( tried to create IMUs using acceleration sensors, gyroscopes and geomagnetic sensors like v=6ijArKE8vKU), but after searching and finding out in many ways, we decided to do it in a different...

Kotlin: How to send/receive data with submodules I have a project with submodules which are injected (through Koin DI) but I have no idea how to send and receive data between them. Here is the project structure and requirements: mainModule |__ mainActivity starts subActivity1 through Koin dependency injection > then requires responses from subActivity3, then must respond back. subModule1 |__ subActivity1 > calls subActivity2 |__ subActivity2 > calls subActivity3 |__ subActivity3 > how to return values to mainActivity and continue receiving...

Size property vs Count() method in ArrayList - Kotlin In order to understand better which one out of the two is better, I wrote some code as follows val nums = listOf(4, 5, 3, 2, 1, -1, 7, 6, -8, 9, -12) val filterCount = measureNanoTime { nums.filter {e -> e > 0}.count() } val filterSize = measureNanoTime { nums.filter {e -> e >0}.size } println("Time taken for filter size call: $filterSize") println("Time taken for filter count call: $filterCount") The output is as follows (and is consistent every time I run it Time taken for...

Make custom view height match constraints in ConstraintLayout I'm building a simple custom view, it's just a basic rectangular container at the moment cause I'm having some issues with the ConstraintLayout. In the onMeasure method I'm trying to make my view's height to match vertical constraint. What I mean is that I want my...

Increase Size of Selected Bottom Navigation Item I have implemented a BottomNavigationBar with Jetpack Compose (5 icons, label is only shown when item is selected). As per 1 requirement, I need to increase the width of the selected bottom navigation item (NOT the icon of the item, but the entire item). So instead of all bottom navigation items having the same width: I need the selected item to have twice the size of the other not selected items and the width of the...

How do I collecting all subproject code in jar using gradle/kotlin dsl I want to use gradle multi-project builds to create library jars, where each multiproject represents one library. (I am using Kotlin as a language and would prefer Kotlin DSL in build.gradle). What I want to do is collect all the compiled code from all the sub-projects into a single jar that I can publish. For some reason this seems quite tricky. I do not want to include runtime dependencies. (Context: The library jars contain sub-projects as 'kotlin modules' to retain public/internal...

extras.getString() returns null in Kotlin Android The result is always return null, I don't know what mistake, I have seen other people problems I am not getting what I need exactly. class DatabaseLists(private val context: Context?) { private lateinit var database: SQLiteDatabase val getPrayerContentList: ArrayList @SuppressLint("Recycle") get() { database = DatabaseOpenHelper(context).readableDatabase val cursor: Cursor = database.query( "table_prayer", null,...

How to change selector file checked state drawable .webp file color programatically in Android with Kotlin? Details: I've adapter class in that I want to change the image view background color based on condition In XML that image view using this: app:srcCompat="@drawable/check_box_selector" In that selector: /checked - This is a checked.webp file with purple color BTW, what is checked.webp? So it's a Circle Check icon. You can see the similar image: https://fontawesome.com/v5.15/icons/check-circle Question: I...

How can i retrieve values of Firebase Nodes with random auto generated IDs in Android Using Kotlin Please I don't know how to go about retrieving data from Firebase database where the values have random generated IDs as seen below.

How to pass recyclerview item ID to repository? I'm building an app on MVVM architecture + Kotlin + Coroutines. I have a Recyclerview in a fragment and now I want to pass Recyclerview item ID to the Repository to get items by id for the second Recyclerview. Main Fragment: groupAdapter.setOnItemClickListener { item, view -> (item as? FindPlantsItem)?.let { showPlants(it.categotiesEntry.categoryId.toString(),view) } } private fun showPlants(category_id: String, view: View) { val actionDetail =...

Android Kotlin long object in JSON response I'm wondering what is the easiest and best method to handle this whole bunch of JSON objects (rates) in response? Here is a part of this response: As you can see this rates object drags on long long behind the screen height. My first idea was to simply create such two models: data class ApiResponse( @SerializedName("base") val base: String, @SerializedName("date") val date: String,...

Why is there an error java.lang.ExceptionInInitializerError when using an ImageSlider in a recyclerView in Kotlin? I am trying to show images in an ImageSlider in a recyclerView. What I have done is, as the images to be fetched from Firebase storage, I created an array of SlideModel within the adapter class. There will be a minimum of 1 and a maximum of 5 images. Following is how I have done this. My code seems to work as I can see data in the remoteImages (SlideModel ArrayList) in the Logcat. But, when I add the last line of code, which is holder.itemView.image_slider.setImageList(remoteImages,...

How to make proguard not rename inline method in Kotlin class? I have a wrapper over SharedPreferences that stores non-primitive types using Gson. This works fine on a debug build, but in a release build, I get a crash in the get() method. I found that the problem was with ProGuard. I added a line to my proguard-rules: -keep class com.mezhevikin.converter.extensions.Preferences {*; } But it didn't help, I analyzed the apk and found that ProGuard renamed the get() method despite setting {*; }. The problem seems to be that ProGuard works differently with...

Fragments must call register registerForActivityResult() before they are created I am working on shopping app, i created a fragment for adding products to productslist. I need to get read external storage permission for adding photo to product so I am trying to use registerForActivityResult() in my fragment and i am getting this error. I am new to android programming so i dont know that i am using it right way. I tried every answer from another questions but they didnt work too. Sorry for my bad english. Thanks for your help. java.lang.IllegalStateException: Fragment...

Android Kotlin populating recyclerview with long JSON object from response problem I am wondering how can I populate my recyclerview with this JSON response: As we can see the problem is with huge rates object which drags on long outside the screen height. My first idea was to create such item layout but I backed out very fast as I imagined how much tedious, manual work I would need to do with creating about 300 TextView components (150 currency names and 150 of their values). Here is what I have...

Kotlin - RecyclerView - List items don't come to screen but printed on console I am trying to parse website using Jsoup. When I run the app, the parsed items come to console, I mean with println statements, but the list of items doesn't come to recyclerview of the fragment, just a blank screen appears. The code part is long, I am pasting the whole fragment(with recyclerview) and adapter codes here. Any help is appreciated. Adapter Class: class ExampleAdapter : RecyclerView.Adapter() { // ExampleAdapter(private val exampleList: List) private val exampleList =...

Gmail API returns "Delegation denied for my.email@email.com" when setting a different email as recipient I am using the Gmail API to create drafts. When I create a draft message where the recipient is my own email (the one that generates the credential), everything works fine but when I try to use a different email, the following message is printed: { "code" : 403, "errors" : [ { "domain" : "global", "message" : "Delegation denied for my.email.here@gmail.com", "reason" : "forbidden" } ], "message" : "Delegation denied for my.email.here@gmail.com", "status" :...

Order of operations in Android/Kotlin Could anyone explain to me why this code works: if (questionList[currentIndex].answer == inputAnswer) { correctAnswers += 1*100/questionList.size percentage.text = "Правильно: $correctAnswers%" and this one doesn't: if (questionList[currentIndex].answer == inputAnswer) { correctAnswers += 1/questionList.size*100 percentage.text = "Правильно: $correctAnswers%" When I click a button, set up with the first bit of code, everything works fine and my...

"NullPointerException: null cannot be cast to non null type Error" in kotlin var notify = ArrayList() override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main_user) btn_list2.setOnClickListener { val sharedPreferences1 = getSharedPreferences("id", Context.MODE_PRIVATE) val documentid: String? = sharedPreferences1.getString("id","null") val c = FirebaseFirestore.getInstance() val d =...

Reordering items in LazyVerticalGrid with drag and drop In Jetpack Compose I have a LazyVerticalGrid and I would like to add the drag and drop function to reorder the items, as we usually do with the RecyclerView...

How to know when the Night theme is toggled? I want to know when the Android 10's night theme is toggled. Whether it is from the quick settings, the settings app or by another way. This way I can call my method to refresh my widgets and make them match the current theme. Take the Google News' widget as an example. I guess this can be done with a BroadcastReceiver, but I did not find any action related to this. Do you have any suggestions?

Retrofit SocketTimeoutException Error When API is Down I'm trying to create an Interceptor in the event that the API I'm using goes down, which has happened when I tried to make an API call on Postman only for it to return a 504 error. This is the OkHttpClient I have for now. I set it to 5 seconds only for testing purposes. val client = OkHttpClient.Builder() .connectTimeout(5, TimeUnit.SECONDS) .writeTimeout(5, TimeUnit.SECONDS) .readTimeout(5, TimeUnit.SECONDS) .addInterceptor(object : Interceptor { override fun...

Coroutines "Asynchronous withTimeout" official tutorial strange behavior In the official guide "Cancellation and timeouts" section "Asynchronous timeout and resources" there is an example that is supposed to... "If you run the above code you'll see that it does not always print zero, though it may depend on the timings of your machine...

Gradle Kotlin Dependency I am trying to implement a library written in Kotlin with Gradle and I put it in the libs folder but I can only use the Java libraries that are in the folder. This is the build.gradle code. import org.jetbrains.kotlin.gradle.tasks.KotlinCompile plugins { kotlin("jvm") version "1.5.21" } repositories { mavenCentral() } dependencies { compileOnly(kotlin("stdlib-jdk8")) implementation(fileTree("libs")) } tasks.withType { kotlinOptions.jvmTarget = "1.8" }

Cloud Firestore: PERMISSION_DENIED: The caller does not have permission I'm trying to save data to Cloud Firestore when I encountered this issue. I'm still new to using Firestore and cannot figure out why. This works match /{document=**}/{userId} //code of interest rules_version = '2'; service cloud.firestore { match /databases/{database}/documents { match /users/{userId} { allow read, update, delete: if request.auth != null && request.auth.uid == userId; allow create: if request.auth != null; } match /{document=**}/{userId} {...

Hilt Field Injection throwing "property not initialized" error? I just followed the official Hilt docs and tried to implement a simple field injection, here is the MainActivity: import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import dagger.hilt.EntryPoint import dagger.hilt.android.AndroidEntryPoint import javax.inject.Inject @AndroidEntryPoint class MainActivity : AppCompatActivity() { //field Injection @Inject lateinit var analytics: AnalyticsAdapter override fun onCreate(savedInstanceState: Bundle?) {...

Can't figure out how to display seekbar value in Android Studio So I have a seekbar which I want the value of the seekbar to be displayed on the screen but android studio doesn't understand what the ID's I have described the seekbars and the texts are (the IDs are surrounded by stars) All of the code that are surrounded by stars are in red and the interpreter doesn't understand. Any help on this? class MainActivity : AppCompatActivity() { private var textView: TextView? = null private var progressBar: ProgressBar? = null private var seekBar: SeekBar? =...

This is an example of a web pdf viewer and the function to properly download the pdf file in Android 11 This is an example of a web pdf viewer and the function to properly download the pdf file in Android 11, probably you will safe a couple of hours with this code. This is the Activity Class, it's call PdfViewerActivity. import android.app.DownloadManager import android.content.Context import android.net.Uri import android.os.Bundle import android.os.Environment import android.os.StrictMode import android.os.StrictMode.ThreadPolicy import android.webkit.WebView import...

I got this error , but I can't solve it. com.google.firebase.database.DatabaseException: Can't convert object of type java.lang.String to type com.google.firebase.database.DatabaseException: Can't convert object of type java.lang.String to type , seem this error always happen but I still don't know how to solve it this is my activity to display recyclerView package com.example.budget import android.content.Intent import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.view.Gravity import android.view.View import android.widget.ImageButton import android.widget.TextView import...