Percent unit from CSS to Kotlin React? I was trying to use the percent unit (%) from CSS to my Kotlin React file, it has the others unit but I cant find this one. I was looking in Length.kt. If there's not that unit, how could I do the same? I'm trying to make an input with 50% height compared to its parent. I'm new in Kotlin. Please help!

Android Kotlin LazyThreadSafetyMode.NONE In most of the samples regarding Android View Model and lazy init nobody refers to the parameters which can be used in by Lazy. From the Kotlin docu: If you're sure that the initialization will always happen in the same thread as the one where you use the property, you can use LazyThreadSafetyMode.NONE. It doesn't incur any thread-safety guarantees and related overhead. I can not...

snapshot.getValue(ChatMessage::class.java)) is returning null Getting a null value when running: snapshot.getValue(ChatMessage::class.java) ChatLog.kt class chat_log : AppCompatActivity() { val adapter = GroupAdapter() override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_chat_log) val user = intent.getParcelableExtra("user") val actionBar = getSupportActionBar()...

How to add images to DB Browser for sqlite that are stored in drawable folder? I am trying to pre-populate a room database with some data using DB Browser for sqlite. I have a table defined with (name: String, score:Int, image:Int). That image field stores an image from drawable folder so the example for an insert would be : INSERT INTO player (name,score,image) VALUES ("Mike", 31, R.drawable.mike) Since the table field is Int, DB Browser wont let me store R.drawable.mike which is the image location in android studio as it expects a number. Error : Execution finished...

Why I get null when I try to access view by ID? I have a function, cauntMe() that is triggered when the button is clicked. fun cauntMe(view: View){ val textView = view.findViewById(R.id.textView) val countString = textView.text.toString() var count: Int = Integer.parseInt(countString) count++ textView.text = count.toString() } Here is XML declaration of the view: In triggered function this row return null: view.findViewById(R.id.textView) Here is class: class MainActivity : AppCompatActivity() { override fun...

When should one use Modifier.then? What is the purpose or when is it useful to use Modifier.then in jetpack compose?

Android Kotlin AlertDialog.Builder() usage and context. "this" not working This is my very first time using Kotlin/Android App Development, so I apologise if I am missing something simple. I have a background in Java and C#. I'm trying to display an AlertBox containing X information. All the tutorials I am reading/watching stay that the constructor should be: val builder = AlertDialog.Builder(this) This issue I am having trouble with is the "this" part. I get a Type Mismatch error for the "this" reference. I have tried searching for a solution and I find variations...

What is this pop up by Samsungs clock? pardon my lack of knowledge. Can anyone tell me what this popup from Samsungs clock is when an alarm goes off? Is it a fragment, or an activity of its own? I was reading and android.com says that starting activities when the user is on screen is restricted. It can't be done because it is obtrusive. Could you please tell me what this pop up is called, and is it an activity, fragment, something else?

How to get API response in kotlin wanted to get items inside "item_optional" but cant seems to figure out how to make the model class in Realm.

How can I send Notification when New data added in Json file or in API ? in Android Kotlin / Java I have an application which need to notify user when there is new data added in API. How programmatically it will do ? Note: I checked all the reference but still getting not solution that I want.

How to convert custom callback to coroutine I am using Stripe library which provides me with custom callback functionality. I want a custom callback convert to Kotlin coroutine Here is the code override fun retrievePaymentIntent(clientSecret: String): Flow = flow{ emit(Resource.Loading()) Terminal.getInstance().retrievePaymentIntent(clientSecret, object : PaymentIntentCallback { override fun onFailure(e: TerminalException) {} override fun onSuccess(paymentIntent:...

Concurrency in kotlin also block after synchronized block I have a block of code like this in kotlin. synchronized(this) { // do some work and produces a String }.also { /*it: String*/ logger.log(it) } can some thread come and with unlucky timing the it variable gets changed before logging happens? (There are a lot of threads executing this piece of code concurrently)

Google Map Clustering I have implemented google map clustering in my app. Since all the locations are very close to each other, the clustering is shown even when zoomed in. I need the map to show the default markers upon zooming in. How can I do this?

How to fix " app:mergeDebugJavaResource " Error I am new to coding Android I tried to start AVD but many of the errors are showing in front of me could someone else help me to fix it. Thank you.

Displaying the value of the EditText in the TextView at the Simultaneous(online) in kotlin I want the text written inside the EditText to be displayed simultaneously in the TextView without pressing the button (kotlin) thank you

How to create an intent for email only with a file attachment Here's what I want to achieve - I should only be able to see email client apps like gmail and outlook in the options segment. Don't want the rest of the apps. intent.addCategory(Intent.CATEGORY_APP_EMAIL) the code above was one of the suggestions that I saw while searching for how to achieve this. But, here's the issue when I use it... Also, val emailIntent = Intent(Intent.ACTION_SENDTO) was another suggestion. Has...

channel iterator partially covered [1 of 2 branches] kotlin I have written a custom SQS consumer wherein : One coroutine that periodically retrieves the messages Multiple workers that process the receiving messages in parallel without blocking. A channel to communicate between the MsgReceiver coroutine and the Workers. However, when writing unit tests I am unable to achieve 100% test coverage kover or with sonar. The kover/sonar plugin complains about partially covered while loop [highlighted in yellow] and I cannot understand which scenario have I...

focusOutFront() not working on VerticalGridSupportFragment but working on RowSupportFragment I am working on Android TV using Leanback. Here, I have a list of channel data and their EPG. I have populated the channels list on the VerticalGridSupportFragment. And I also have a date filter button to filter the EPG list as per date. Here, is the design of the channel list and EPG with the filter button. Now, the problem is I can navigate from the filter button to the channel list. But I cannot navigate from the...

Android recyclerview: How to implement asynchronous listeners? I have this code: @Override public void onBindViewHolder(@NonNull final ViewHolder holder, final int position) { ... String username = ...; addListenerForTyping(() -> holder.myTextView.setText(username + " is typing...")); ... } This doesn't work well. There are many items in my list, and when I scroll through them all, while a user is typing, the typing-text will be shown for the wrong item. Not for the item that actually belongs to the typing user. I guess the reason is...

How to display dialog on any screen (fragment or activity) in android User is in Fragment/Activity "A" In the onCreate() of screen "A" i fire some network call on a background thread. User navigates to some other Fragment/Activity, now when i get the response from the network i need to show the dialog no matter wherever the user is in the app. How can i achieve this behavior? using DialogFragment

How to group and then sort the list of objects in Kotlin? I have a list of objects with the following values data class Account(val accountName:String,val deleteAllowed:Boolean,val accountType:String) I want to first display the object with 'deleteAllowed'=false. If there are 2 object with 'deleteAllowed' = false, then the first one to be displayed is the one with 'accountType'="transactional" . And the rest should be sorted based on 'accountName'. For eg, [{accountName="AAA",deleteAllowed=true,accountType="savings"},...

NullPointerException when creating a infinite carousel in Compose I am trying to create a infinite scrollable carousel of cards using this solution @Composable fun CircularList( items: List, modifier: Modifier = Modifier, isEndless: Boolean = false, onItemClick: (String) -> Unit ) { val listState = rememberLazyListState( if (isEndless) Int.MAX_VALUE / 2 else 0 ) LazyColumn( state = listState, modifier = modifier ) { items(...

Not able to access elements with kotlin in android studio I am new to android studio and wanted to make a pretty basic app. The problem is after creating an xml file and giving it id as btnApply, i tried to print something when it gets clicked. I think the code is correct as I have been following a youtube tutorial, but something else like my settings is not allowing me to access the xml file elements. Any fixes?? package com.example.applicationone import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.util.Log...

Kotlin: Generic types in Kotlin To get the class definition to be used for example for json deserialization the following can be used in Kotlin: Map::class.java A example usage is the following: val map = mapper.readValue(json, Map::class.java) But now how to have the generic type definition? Something like this does not compile: val map = mapper.readValue(decodedString, Map::class.java) So my question is: What is the generic equivalent to *::class.java

Draw user's path/route in real-time using Mapbox v10, Android, and Kotlin Using a Mapbox MapView (v10.6.0) and Android, I would like to draw a path in real-time. I do not need Turn-by-Turn Navigation features, but only to track the user's actual route. The approach I am planning to use (unless an easier/better solution comes up) is using a listener as described in the documentation (Display the user's location) that updates the camera every time the user moves,...

Filter a list of transactions I have lists of transactions, I would like if the list contains 4 transactions, delete the two lowest, if the list contains 5 transactions, always the 2 cheapest, if there are 6, the 3 cheapest and so on. allDrivers.map { driver -> val transacsByDriver = allTransacs.filter { transaction -> transaction.driver?.userId == driver.userId } val tt = transacsByDriver.filterIndexed { index, transaction -> Math.floorDiv(index, 2) == index.floorDiv(2)} println(tt)...

Spring read list property dynamically With spring it easily possible to read a normal property using env.getProperty(key) For example if your application.yaml looks like this: test: "a" You can read the value like this: val test = env.getProperty("test") But now assume you want to read the following application.yaml: test: - a: "a" - b: "b" How can I read test[a] dynamically? What does not work unfortunately is this: val test = env.getProperty("test[a]")

Why Daaps, Web3 and Metamsk not open in Webview android studio I am unable to open metamask in webview from uniswap url https://app.uniswap.org/#/swap?chain=rinkeby . Also not lunch Daaps and Web3 website

Can i implements a kotlin/java interface in react native javascript? I'm trying to implement a reactNative library whose native module has a method (annotated with @ReactMethod) that requires an object of type T. That T is an interface written in native language (kotlin). Can i implement that interface in reactNative javascript? And if not, how do i achieve passing an object that implements that interface?