Print all elements in a comma separated String I have a simple string that is generated dynamically as such: String values = "one, two, three...last" How to i print all items in string values?

How do I call this constuctor in java? I have a library (.aar) file which i imported in java. The class is LSPatch which has a constructor. public final class LSPatch public constructor(options: org.json.JSONObject, onDiscovery: (org.json.JSONObject) -> kotlin.Unit, onData: (org.json.JSONObject) -> kotlin.Unit, onStatus: (org.json.JSONObject) -> kotlin.Unit) {....} Now I have no idea how to call this constuctor in java source code when I need to create an object of Class 'LSPatch'. Like i want to create LSPatch lspatch=new...

Make Checkbox's text a clickable link in Android Studio(KOTLIN) which opens up a certain website? hey i was making this app which contains a 1000s of links in a scrollview linear layout and the text in the checkbox looks like this ---> Link 1 now i want it to open a particular link when it is clicked and the checkbox gets a tick mark right after 15 seconds how can i do it in kotlin please someone help me... this is my main activity import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.os.Parcel import android.os.Parcelable class MainActivity() :...

Found conflicting getters for name I am a beginner in kotlin coding and I am trying to make a search bar with edit text which can find the user account from the fire-base. Here are my codes package com.example.videoapp import android.annotation.SuppressLint import android.os.Bundle import android.text.Editable import android.text.TextWatcher import androidx.fragment.app.Fragment import android.view.LayoutInflater import android.view.View import android.view.ViewGroup import android.widget.EditText import...

Kotlin-How to get the shopID of the checked checkbox in RecycleView displayed from SQLite and save it into sqlite database I am currently doing my final year project and I am very new to Kotlin and also Android studio. I had displayed my shops table from my SQLite database in RecycleView with checkbox, however, I don't know how to get the shopID from the recycleview of the checked checkbox and save it into my shopSelected table in my SQLite database. I hope you all can help me with this. Thank you all in advance. Here is my code. DatabaseHelper.kt import android.content.ContentValues import...

can we use ImageUrl AugmentedImageDatabase? I'm creating an app using Arcore. so I read about ARcore from many tutorials but everyone is using image either from asset folder or external storage. So my question is there any way we can use an image URL that we got from backend-server and save it to the Augmented Image Database by converting it into bitmap?

Post method using retrofit not working, logcat saying its null I'm trying to send some data to my server, it says that data was sent however when I check the website nothing happens. In the logcat it says that mView is null. I tried different methods in order to send data to the server, but it always appears the same error. Here is the model that is in my server: Here are my classes The endpoint:...

Type mismatch inferred type is () -> Unit but FlowCollector<Int> was expected When trying to collect from a Flow the type suddenly mismatches, and it was working and then started suddenly. In my viewmodel: class MyViewModel: ViewModel() { lateinit var river: Flow fun doStuff() { river = flow { emit(1) }.flowOn(Dispatchers.Default) .catch { emit(0) } } } Then in my activity I have the following: lifecycleScope.launch { viewModel.river.collect { it -> // this whole collect is what...

I am always receiving the error "Content not allowed in prolog" in Android Studio even with built-in android studio apps I seem to always be getting the error: "content not allowed in prolog", even when using the built-in android studio apps. Not sure what is happening. Please help! Using Android Studio 4.0 and android gradle plugin version 4.0.0 and gradle version 6.1.1 according to my project structure if that helps.

Keep on getting error on random number generators trying to build my first app for android Keep on getting this error while trying to build my first android app using kotlin, a random number generator, help pls Unresolved reference: Random package com.example.testapp3rolldice import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.widget.Button import android.widget.SeekBar import android.widget.TextView class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) {...

How to access to functions in other class on Kotlin? well I'm developing an app on Kotlin, so I have a class called CreateNoteActivity.kt in where I have a function that want to move to ImageProcessor.kt to make the code cleaner. Its works with 2 functions (getResizedBitmap and getImageUriAndCompress) but when I try to access to the fun getRealPathFromURI I have a problem cause it says "Unresolved Reference: contentResolver". Note: It works if the fun getRealPathFromURI is on CreateNoteActivity.kt. Thanks as always! ImageProcessor.kt:...

How to solve "No Python interpreter configured for the module"? in Android Studio? How to solve "No Python interpreter configured for the module"? in Android Studio? I am trying to use python and django framework in android studio . My MainActivity is in kotlin. i dont know how to solve this, any ideas?

android kotlin wifi intent I want to make users access wifi to in app button. https://github.com/zxing/zxing/wiki/Barcode-Contents?fbclid=IwAR3FC_8D7eC0JZWau8RcO1lxYKyce1vqiTFVzvgkAUzau4miWkfJCBijYU8#wi-fi-network-config-android-ios-11 I read this post and I tried this. url = "WIFITWPA;Smynetwork;Pmypass;;" val intent...

Take maximum of multiple function calls Let's say I have the function fun someValue() : Double. I want to run this function n times and take the maximum of all the results. I know I can safe it all in a list and use max(), but I don't want to waste that space (because it actually returns a bigger object). Does there exist a library-function for this? Maybe something like repeat(n){someValue()}.max()

Android: Choose Photo from Gallery I am trying to access photo libraray in android device using this code: txtSelectPhoto.setOnClickListener(v->{ Intent i = new Intent(Intent.ACTION_PICK); i.setType("image/*"); startActivityForResult(i,GALLERY_CHANGE_PROFILE); }); but when it opens it just gives me a blank screen of the device folders with no photos like this although there are photos on the device.. is there any way to solve this? <a href="" rel="nofollow...

recyclerview item position not working on delete When I delete recyclerview items from last one to first one it's working well but when I delete one item above last one it's not working, for example when I delete from first item always position is 0 for all items but if I delete from second item all items after it are 1 like itself but the first one is 0. Please tell me how can I resolve this problem. RecyclerAdapter private fun delete(realm: Realm, dbPosition: Int) { try { realm.beginTransaction() val delCol =...

Layout does not center when using view binding I am following the 'Developing android apps with Kotlin' beginner course from Udacity and stumbled upon something strange. I have the following onCreate function in my MainActivity file: override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) } The layout looks like this: Here I use an integervalue to reference my view. When I change...

Call notifiyDataSetChanged() from android viewmodel I'm making a reactive app with a lot of data using Android MVVM. There are a lot of cases where I push data to firestore documents in my app, but i also want this change in data to be reflected locally in my app. So I also add the data to the local copy (data class) of the firestore document. I do this in my viewmodel. The problem here is that I won't see change until I restart the app. So I need a way to call adapter.notifyDataSetChanged() from my viewmodel so the recyclerviews are updated...

Recyclerview scroll item to top and scroll a bit more for the size of a view inside I have a recyclerview with a custom LinearLayoutManager which enables me to scroll to the selected item and snapping that item to the start of the recyclerview. However the items are divided into categories and the first items in each category has a header textview. I want to scroll past the header when the smoothscrolling occurs. Basically this is I get. The headers are only textview in the items and are only visible if the item is first in a category. Instead of seeing this;...

EditText in RecyclerView Item suffles the text in EditText fields I am creating a comprehension exercise in an android app, and i am using a RecyclerView, having a TextView for each question and an EditText for typing its respective answer, and a check button as sibling of the RecyclerView to provide result. So the problem is when i fill all the answers in each the EditText fields and then click the check button, the answers get shuffled and are not in same position as they were entered. Anybody has any idea why is it behaving like this.

AlarmManager - Repeating alarms with android studio To be short this is my goal: Toggle Wifi every minute. Currently, I can toggle it with a button like this: MainActivity.kt private var wifiManager: WifiManager? = null override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) findViewById(R.id.b_wifi) b_wifi.setOnClickListener() { wifiManager = applicationContext.getSystemService(Context.WIFI_SERVICE) as WifiManager...

What is meaning of this line of code in Kotlin I am a little bit confused with this line of hello world kotr code written in Kotlin. fun main(args: Array): Unit = io.ktor.server.netty.EngineMain.main(args) what is code is doing here in the above line? full code for reference fun main(args: Array): Unit = io.ktor.server.netty.EngineMain.main(args) @Suppress("unused") // Referenced in application.conf @kotlin.jvm.JvmOverloads fun Application.module(testing: Boolean = false) { val client = HttpClient(Apache) { } routing {...

How to use an ArrayAdapter with Spinner Kotlin I'm trying to create dropdown list (Spinner) in AndroidStudio (Kotlin). So, I create convert_from_spinner on my Activity. Then I tried to add values to the list, but IDE gives me an error: class HomeFragment : Fragment() { private lateinit var homeViewModel: HomeViewModel override fun onCreateView( inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle? ): View? { homeViewModel =...

Why can't I see the badge on the action bar icon? [duplicate] I'm trying to put an icon on the toolbar with a counter badge, but it doesn't show it. I only see the icon, in the image you can see it. And so on the emulator when I run the application menu.xml contador_items.xml

Android AlarmManager does not fire after first app kill, but does otherwise I am experiencing an issue with the AlarmManager, which can be replicated as follows: 1. Install and open the app. 2. Set an alarm in 10 minutes as an example. 3. Kill the app before the alarm is expected to fire. The alarm notification will not show at the expected time. The issue will not appear and the alarm will fire normally if: A: I do not kill the app and leave it open or in the background, or B: After killing the app, reopen the same app during the 10 minutes time frame. Then whether...

Combining two listeners kotlin coroutines I have created a library, in it I have a room database with one Table OfflineData. I listen to new rows inserted in the OfflineData table. I also listen to changes happening in the network connection. I want to combine them both. what I want to listen to a function which returns list of from the table when when there is new row inserted and has internet connection whet the connection comes back on and there is data in the OfflineData table. OfflineDatabaseManager - I have getOfflineData()...

Using ReactiveMongoTemplate with Kotlin coroutines I am developing a reactive application using Spring Boot 2.3.0, MongoDB, and Kotlin. Unlikely, I need to develop a custom repository using the ReactiveMongoTemplate object. Since all the application uses Kotlin coroutines, I will be very happy if also this repository could use them. For example, I developed a simple update on a Mongo collection: override suspend fun addQuantityToStockInAPortfolio( portfolio: String, stock: String, quantity: Long): UpdateResult? { return...

how do I prevent numbers from going to Scientific Notations in my TextView? I am making a calculator. When I add too many characters, the display automatically gets this scientific notation. How do I prevent this? if ((answer == null)) { answer = 0.0 } else { answer = (answer * 10) + digit } answerEditText.setText(checkLast2Digits(answer.toDouble().toString())) } // removes the .0 from the end of the string private fun checkLast2Digits(answerText: String):...

Android worker not start how i can run it? My simple class ExampleApplication:Application() not run worker with default initialization. In documentation minimum 15 minutes interval, each time I have to wait 15 minutes to see if it started or not? class ExampleWorker(context: Context, params: WorkerParameters): CoroutineWorker(context, params) { override suspend fun doWork(): Result { try { Log.i("WORKER","do work()") } catch (e: HttpException) { return Result.retry() } return Result.success() } }...

Java 8+ API desugaring support for pure kotlin modules I'm trying new Java 8+ API desugaring support (Android Gradle Plugin 4.0.0+) Everything is fine with android app and android library modules but in pure kotlin modules desugared API's get highlighted red with errors similar to: Call requires API level 26 (current min is 21): java.time.LocalTime#parse Everything compiles and works well. Is there something in .gradle...