How do you log previewView.bitmap in Android Kotlin (Jetpack Compose)? I just want to log live bitmap data from the previewScreen, but the documentation for PreviewView.bitmap says: "If the preview hasn't started yet, the method may return null or an empty Bitmap. Use getPreviewStreamState() to get the PreviewView.StreamState and wait for PreviewView.StreamState.STREAMING to make sure the preview is started." I'm just not sure how to implement that. Please help! Here's my composable: ` package com.example.livestreamdemo.screens import android.Manifest import...

how can i get database instance in another kotlin class based on my main database class In my project, I use the Singleton design pattern, add a companion object and a function that returns a database object instance. This will avoid creating multiple instances database object through which the connection to the SQL server is established. I have the following code to connect to the database: // Annotates class to be a Room Database with a table (entity) of the Word class @Database(entities = arrayOf(ShoppingList::class), version = 1, exportSchema = false) public abstract class...

JNI is destroyed the first time it is instantiated I have a project that I run in a T2 terminal, when I restart and/or shut down the T2 terminal and install the project for the first time, it crashes, but it only happens once, then everything works fine. I am using an sdk for a honeywell model 1950g barcode scanner that will connect to the T2 terminal. <a href="https://i.stack.imgur.com/5rD0G.png" rel="nofollow noreferrer">enter image...

Libgdx 3d particle error on initialization I'm having a rendering issue for 3d particles created with the flame particle editor in libgdx. I'm using a particle system to render 3d particles created with flame, I followed the tutorial in the libgdx' official site: code taken from: , but when I try to render them, I get the following error: Cannot invoke...

Problem to navigate between fragments in Navbar i have a problem with navigation between fragments in Navbar. This is my situation: I have 3 main fragments: Home, List, Settings Home has 2 sub fragment: Add & Edit So, if i navigate between the 3 main fragments with navbar is everything ok, then if i go in one of 2 "sub fragments" and then, (instead of "navigate up" before and then change main) i directly choose one of other 2 "main" i will go there, but then if i come back to List i will see the sub fragment. I have to Navigate Up to see...

So, I'm working in Kotlin and need to pluralize the following not sure how. I'm fairly new at this fun main(args: Array) { var changeDue = 1.22; Change(changeDue); } fun Change(changeDue: Double){ var quarters = Math.floor(changeDue / 1.0); print(Math.round(quarters * 4) / 1) if(quarters2) println(" Quarter") println("") println(".22 remain") } I have tried googling on how pluralize the code I have given. I have seen examples and tried them but everything I have tried has not worked.

Kotlin app view overlaping with system navigation bar Using a android phone (samsung), my app view is being overlapped by the system navigation bar. I'd like the view to be end at above the system navigation bar

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Tried a bunch of different xml options, with the expectation of the view ending before the system navigation bar.

Text is not adjusted if hasVisualOverflow is true so, I have a text, I need the text to be only 1 line and adjust its fontsize regarding display size. What I have been doing lately is just to use onTextLayout and trigger the textStyle in order to resize it, so far this was working fine for texts that only have 1 style, in this case , I'm using multiple styles into 1 Text and I want this one to do the same (resize both styles) I have done this var boldTitleTextStyle by remember { mutableStateOf(SpanStyle( fontFamily =...

I can't trasition between the STATES in my app . what is the wrong in my code? /* * Copyright (C) 2021 The Android Open Source Project. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either...

retrofit MalformedJsonException I am receiving a response from the server in Json format. val gson: Gson = GsonBuilder() .setLenient() .create() private val retrofit = Retrofit.Builder() .baseUrl(BASE_URL) .addConverterFactory(GsonConverterFactory.create(gson)) .build() the response contains characters \r, \n, " and I get an error "com.google.gson.stream.MalformedJsonException: Unterminated object at line" please tell me how to process this json correctly tried using moshi...

How do I trace and resolve Android App's BLASTBufferQueue Faking releaseBufferCallback? I've recently begun building my first app using Kotlin and Jetpack Compose. Up to now, I have not seen this error show in the Logcat and due to my lack of experience, I'm stumped! I was cleaning up code, extracting functions to other class files, cleaning up the UI for one the the Composables I made and now I'm getting constant Logcat entries for the BLASTBufferQueue with the following entry: 140310.687 E [VRI[MainActivity]#0](f0,a3) Faking releaseBufferCallback from...

Android MVVM pattern: where to start activity for result? In the MVVM architecture, where does one start an activity for result ? For example, I need to get banking informations from an nfc tag in my payment app. What I do is I start the ReadNFCActivity from my PaymentActivity, retrieve the results there, and then I call my PaymentViewModel's updatePaymentInformations(name: String, account_number: Int...) method from my PaymentActivity. The data going from one activity to the other before being sent to the viewModel doesn't feel like the right way....

Send intent arguments from bundle to ViewModel using Hilt I'm trying to send three values to my UserViewModel but even if sending the savedStateHandle In my Activity I have private val viewModel: UserViewModel by viewModels() Then my UserViewModel is : @HiltViewModel internal class UserViewModel @Inject constructor( private val myRepo: MyRepo, private val savedStateHandle: SavedStateHandle, ) : ViewModel() { But then this savedStateHandle is empty, what I'm missing?

Is there a way to get State Management working for Abstract Compose View in Jetpack Compose? I'm currently creating a keyboard that needs to be able to get Data from a View Model that I've created. The problem arises to the fact that the Keyboard is not able to be recomposed when any type of state is changed. Is there a way to be able to implement recomposes/updates as any state is changed for the Abstract Compose View? For reference this is the code I'm using for the InputMethodService class IMEService: InputMethodService(), LifecycleOwner, ViewModelStoreOwner,...

ns typings command error "parse error near `\n'" I have a really small kotlin library to test how to import it into nativescript. I've fallen down at the step when creating typings for ns. I'm getting always the same error: zsh: parse error near \n'` The steps I did for now... The kotlin class: package com.example.mytestlibrary class MyFirst { fun getMySentence(): String { return "Lorem Ipsum" } } I've built an .aar from the lib in Android Studio and unziped to access the jar file and put the files into NS project. If I...

Android Calendar using compose or MaterialDatePicker Is there any compose calendar released by google/android? If not, how can I use MaterialDatePicker when my app theme is appcompat not material ( I cannot change it due to messing other parts of the app). I want the setDisabledDays functionality. Tried using MaterialDatePicker, and DatePicker. MaterialDatePicker didn't work because my app theme is Appcompat. java.lang.IllegalArgumentException: com.google.android.material.datepicker.MaterialCalendar requires a value for the...

Android GPUImage Distortion Filter through camera preview i want to animate through the camera using the GPUImage only in specific area, like having an overlay mask i tried writing shaders but i am not familiar with opengl so i still don't have any solution If anyone has a solution please let me know GPUImage : https://github.com/cats-oss/android-gpuimage

Display name return null when set account name for GoogleSignInOptions like this I want get display name account when login account google everything is working properly when i use like this () but when i use like this it doesn't ()

Kotlin equivalent of scala.io.Source.fromFile() Is there Kotlin equivalent of scala.io.Source.fromFile()? I want to read a file located in a folder outside the module folder but still under the root project. I used to use Source.fromFile("") in Scala.

LF in Kotlin language specification standard for what? Recently I am learning Kotlin. When I read Kotlin language specification, I meet some problems. I do not understand LF in Kotlin language specification standard for what? In section "1.2.1 Whitespace and comments", LF show as below. "LF: " So LF is short for what, and "unicode character Line Feed U+000A" is what?

Unresolved reference: viewModels private val viewModel: GameViewModel by viewModels() Imports: dependencies { implementation 'androidx.corecore ktx1.6.0' implementation 'androidx.appcompatappcompat1.3.1' implementation 'com.google.android.materialmaterial1.4.0' implementation 'androidx.constraintlayoutconstraintlayout2.1.1' // LiveData implementation 'androidx.lifecyclelifecycle livedata ktx2.5.1' // ViewModel implementation "androidx.lifecyclelifecycle viewmodel ktx2.5.1" implementation...

IntelliJ does not compile source files, unless I put "Build Project" in Before Launch steps I have a maven project for Cucumber in Java, where I am mixing Java+Kotlin. The maven build works fine and compiles files as I change them. But when I run a test (*.feature file) from IntelliJ, the files are not compiled. As per the default 'Run Configuration', the step to run 'Before Launch' of test is 'Build'. If I change the configuration to run 'Build Project' instead, the files are getting compiled. But it should work even with default 'Build' step. It won't be feasible to ask the...

Jetpack compose slider with timer text What my slider looks like Idk how to make the text below the slider meanwhile the buttom is next to the slider. Meanwhile my slider looks like this Every helps is appreciated. Thanks

Can anyone help me convert this code from Swift to Kotlin? I am trying to implement the custom behaviour of the button in Android app. My colleague shared the same behavior code in Swift, but I am not smart enough to convert it into Kotlin. Here is the code of the button: func showTabButton() { let colors = [Color.game, Color.meditation, Color.life] let radiuses = [[11, 5, 5], [5, 11, 5], [5, 5, 11]] var x = 11 * Helper.rate() let height: CGFloat = 22 * Helper.rate() for i in 0..

Android Compose App Crashes during UI Testing (Instrumented Tests) I'm following Android Studio's Documentation for learning Kotlin and Jetpacks Compose. For Unit 2, Pathway 3, we are supposed to practice writing both local tests and instrumented tests for the Tip Calculator App that was developed. When I manually tested the App, it works but it fails the Instrumented Test as the entire app closes during UI Testing. As a result, I encounter an Assertion Error, java.lang.AssertionError: Failed: assertExists. Reason: Expected exactly '1' node but could not...

Android gradient border for cardview In Android Kotlin app, I want to set gradient border for cards. I have tried the below background gradient style code. But if you see in sample image, gradient has to apply for half way. Pls help to acheive it.

Detect position in a GridView with Kotlin I'm trying to learn by myself android/kotlin programming, but now things are getting complicated. I do have a question, about how can I detect which buttons were touched by a fling motion, in a GridView. < Below, is how I am doing the layout in xml: Note, I just have a part of the xml, essentially I have bunch of ...widget.AppCompatButton < <a href="" rel="nofollow...

Suggest me to learn RoomDatabase in Android(Kotlin) I just started to learn android with kotlin and I want the best tutorial for the explanation of RoomDataBase with some RecyclerView Example. Appreciate your Response. Thanks

When scrolling to next page grid view position not setting to zero When scrolling to next page grid view position not setting to zero. How to fix that in android kotlin?

Google Play Developer reporting api crash rate not working (Kotlin) I'm trying to get crash rate of my app on play store by reporting api. so, i threw some exception in downloaded app. in google play console, crash was recorded. but reporting api still gives nothing. response code: 200 Json: {} (nothing in json) how can i do that.. documentis here and my code: Main.kt val metricRetrofit = Retrofit.Builder()...