Best Practice for Architecting a Multi-platform Messaging Flutter App with SMS and Server Messaging on Android I am building a Flutter application that is intended to be a multi-platform, all-in-one messaging app. This app needs to support both SMS messaging (for mobile platforms) and server-based messaging (for all platforms). I am currently focusing on the Android platform. My main challenge is dealing with the situation where the app is killed or not running in the foreground. I am aware that the Dart execution context is not active when the app is killed, so direct communication between Kotlin and...

Is there any way to download jxl and wp2 file formats in android? Help me to download JPEG XL (.jxl) and webp V2 (.wp2) not working in android I Have an app with android webview and when download button pressed it converts bloburl and saves image to internal folder. I'm using file and FileOutputStream to save the file. It is working for image format like jpeg, jpg, png but it is not working for two image formats below JPEG XL (.jxl) and Webp V2 (.wp2) var imageBytes = Base64.decode(base64, 0) //base64 derived from blobURL var os: FileOutputStream? = null...

How to migrate from form-data to Raw JSON in Kotlin with raw JSON? Description: I was previously using multipart/form-data in my Android app, but I need to migrate to Raw JSON format. I encountered a 422 error in the response from the server, indicating that nothing is being uploaded. Previously, when the API was still using form-data, everything worked fine. Here are the relevant details and code snippets: Chucker API Screenshot: My Request Screenshot: <a...

How to pass arguments to hiltViewModel() with HorizontalPager? I'm making Compose application that shows many pages in one screen. I want to use HorizontalPager with my ViewModel instance for each page. E.g. @HiltViewModel class ListViewModel @Inject constructor( val savedStateHandle: SavedStateHandle ): ViewModel(){ /* Database query in real application */ val ids = flow { listOf(1, 2, 3, 4, 5) } @Composable fun ListScreen(viewModel: ListViewModel = hiltViewModel()) { val myIds: List by...

SpringBoot 3 + ReactJS + Auth0 I'm just starting a new project from scratch and decided for Kotlin with SpringBoot 3 with ReactJS on frontend and Auth0 as Identity Provider. As far as I like SpringBoot I get seriously confused with what is the recommended way of doing auth in such a setup. Let me elaborate on couple of crucial things: I want to utilise Auth0 functionalities for registering users / social login etc. BUT I need to store more information about the user I want to create more sophisticated relations so that...

How can I fix ObserveAsState not working consistently in Jetpack Compose? Sometimes my observe as state work sometimes dont, basically it worked i instantly commited my code, and 2 days before it didnt work. I have a project, and im trying to implement compose in it, basically a composable inside a fragment. I think that it may be related to livedata, in other screen that uses the same livedata it works but in my composable the livedata dont seem to update. My compose version is 1.1.1 dependencies { implementation...

How i can i make rounded diamond avatar image in android? i want to make a avatar for profile page but i couldn't add round my rectangle. I used the ShapeableImageView but when i rotate it 45 degrees, it rotates in the picture. Now my avatar image like this: https://imgur.com/a/roGIJLL but i want to make like this my avatar: https://imgur.com/a/0yizmpx How can i make rounded diamond image in android ?...

Should I store the state of a variable that depends upon another variable? Is it okay to save the state of a dependent variable? I am learning Android development through the official Android course. In one of the projects, I came across a line of code that saves the state of a variable that depends on another variable whose state has already been saved. The code is as follows: In this code, we have already stored the state of the variable currentDessertIndex. Since the value of currentDessertPrice and currentDessertImageId depends upon the currentDessertIndex...

Can I pass an entity to a batch and use it in a job? I have batch job code as below import kr.test.testApp.core.domain.user.UserRepository import mu.KotlinLogging import org.springframework.batch.core.Job import org.springframework.batch.core.Step import org.springframework.batch.core.configuration.annotation.StepScope import org.springframework.batch.core.job.builder.JobBuilder import org.springframework.batch.core.repository.JobRepository import org.springframework.batch.core.step.builder.StepBuilder import...

When my application is run getting Yellow battery tag error in android studio logcat When My Application is running state getting this error although the application is running perfectly 2023-06-01 103107.042 7028-8082 Battery com.oplus.battery E AppStats: Uid = 10341; pkgName = com.myApp; CpuTime = 934 ms; CpuTotalTime = 196 ms 2023-06-01 103107.042 7028-8082 Battery com.oplus.battery E AppStats: Uid = 10341; pkgName = com.myApp; CpuKernelTime = 268 ms; CpuTotalKernelTime = -216 ms 2023-06-01 103107.042 7028-8082 Battery...

What are the steps to implement a custom TabLayout with unique design elements in Android? Please help to create custom tablayout design like this picture Need this type of custom tablayout design . What are the steps to implement a custom TabLayout with unique design elements in Android as shown in the picture?

Why am I getting a NullPointerException after upgrading to viewBinding in my Kotlin project? Recently I upgraded my project from kotlin synthetic to viewBinding. Now I am facing the following crash and I don't know why and from where it is happening, java.lang.NullPointerException: Attempt to invoke virtual method 'long java.lang.Long.longValue()' on a null object reference at com.tigerit.signalmessenger.ui.viewmodels.ConversationThreadListViewModel$$ExternalSyntheticLambda0.onChanged(Unknown Source:4) at...

Handle Error in an IntelliJ plugin using IntelliJ Platform plugin SDK I'm currently working on an IntelliJ plugin using the IntelliJ Platform plugin SDK. I wanted to update the content of a pane each time an error is detected by the IDE. I have currently put in place a custom ToolWindowFactory which create a ToolWindowContent with my pane. class MyWindowTools : ToolWindowFactory { private var imageLabel = JLabel() private var panel = JPanel() override fun createToolWindowContent(project: Project, toolWindow: ToolWindow) { // Set up the...

How can I restrict the type of a parameter in Android Jetpack Compose with Kotlin? I can use Code A to display a dialog of edit box. In fact, the parameter editTextConten need to accept a variable just like var editContent by remember { mutableStateOf("Hello") } . How can I restrict a type of parameter ? BTW, the Code B and Code C are wrong. Code A @Composable fun DisplayEditBox( editTextContent:String, onChangEditTextContent: (String) ->Unit ) { TextField( value = editTextContent, onValueChange = onChangEditTextContent ) }...

How to create a zoomable layout that holds a container with children that can be panned? I have a ZoomableLayout which allows its contents to be zoomed and panned. In this layout, I wish to add a container which holds multiple children that can be panned (children do not need to be zoomed). The zooming and panning of the container works fine. In fact, the panning of the children also works when the container is not zoomed (i.e. scale = 1). The issue occurs when the container is fully zoomed and I try to pan the children. <a href="" rel="nofollow...

How can I get all child elements of a Jetpack Compose view in Android using Kotlin or Java? Android: How can I get all child elements of a jetpack compose view? In case of xml i am able to find child view using these line of code. public void getChild(){ View v= getwindow().getdecorView().getrootView(); if (v instanceof ViewGroup) { ViewGroup g = (ViewGroup) v; for (int i = 0; i < g.getChildCount(); i++) { Log.d( "find: ",g.getChildAt(i).getClass().getName()); } } } tried this but unable to get as i run this...

Custom Kafka Deserializer ignores null messages I'm using Kotlin Spring Boot and I have a custom Kafka Deserialiser. The issue is that the custom Deserializer complete ignores messages that have null values. Is there a way for null messages to go through the deserialize method? I'm setting the custom Deserialiserlizer on application.yaml spring: kafka: consumer: value-deserializer: mypackage.CustomDeserializer key-deserializer: org.apache.kafka.common.serialization.StringDeserializer

Undefined name '_selectedIndex'. Try correcting the name to one that is defined, or defining the name I have a problem regarding my flutter code, I did not find or the setState in this code is not defined, I want to navigate it to the "nilai" page it is correct, but the navbar doesn't shift or even opens a new page, namely nilai.dart This is the home.dart code import 'package:flutter/material.dart'; import 'package:carousel_slider/carousel_slider.dart'; import 'nilai.dart'; import 'evaluasi.dart'; import 'profil.dart'; class HomePage extends StatefulWidget { @override _HomePageState...

I create the .jar file but I can't use .jar file in my new project I create a .jar file from my old project and try to use the .jar file in new project its crash application. E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.clientapp, PID: 2837 java.lang.NoSuchFieldError: No static field abc_text_select_handle_left_mtrl of type I in class Landroidx/appcompat/R$drawable; or its superclasses (declaration of 'androidx.appcompat.R$drawable' appears in...

How to use sealed classes with generics in kotlin I can't find a solution to this problem data class Data(val s: String) sealed class Base(val t: T, val f: Base.() -> Unit) class A(data: Data, f: A.() -> Unit) : Base(data, f) Type mismatch.Required:Base.() → Unit Found: A.() → Unit Please tell me what should be the correct usage

How to open the User certificates view from the device settings programmatically in Android? I really need to open, from my app, the User certificates view using an Intent. This is the view: This view, in most devices, can be found under Settings > Security and privacy > Other security settings > User certificates So far, I manage to do it and tested it on a Samsung device using: startActivity(Intent("com.android.settings.USER_CREDENTIALS")) However, this does not work on a Pixel 7 Pro device, as there is...

How to place a RecyclerView above BottomAppBar wrapped with CoordinatorLayout in Kotlin? I have Bottom navigationView and wraped it with BottomAppBar and there is a FAB in stick the middle. I Can't put my frameLayout which is recycleview in to the up of the bottomUpbar. And I can't change it to constraintlayout because bottomUpbar must wrap with the coordinatorlayout.(Kotlin)

Kotlin code to openapi call not working beyond building jsonObjectRequest I am making a call from Kotlin code to openai api (gpt-3.5-turbo). I am using a valid my_token for auth. My code is as below - override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_generate) requestQueue = Volley.newRequestQueue(this) val outputText = findViewById(R.id.present_final) val prompt = "say hi" val requestBody = JSONObject() requestBody.put("model",...

Error of binding class missing while building gradle project ` Execution failed for task 'appdataBindingGenBaseClassesDebug'. Cannot access output property 'sourceOutFolder' of task 'appdataBindingGenBaseClassesDebug'. Accessing unreadable inputs or outputs is not supported. Declare the task as untracked by using Task.doNotTrackState(). See https://docs.gradle.org/8.0/userguide/incremental_build.html#disable-state-tracking...

How to create such a screen element for Android? how can I create such an XML element? By clicking on each element, the elements below should change

Webview onReceivedHttpError and onReceivedError problem (not working) i will try to handel webview onReceivedError and onReceivedHttpError, i will show error laytout when webview ReceivedError or ReceivedHttpError and hide webview and when user refresh than error layout hide and webview show but problem is webview onReceivedError is work correctly but onReceivedHttpError not working means error layout not showing webview directly show error, please help me ... i will get some http errors which will display on webview directly :- net::ERR_INTERNET_DISCONNECTED,...

How to mark integer fields as required with Quarkus' Smallrye Openapi plugin in Kotlin? I have a simple data class being returned by one of my routes. Data class: data class Fruit(val id: Long, val name: String) Route: @Path("/fruit") class FruitRoutes { @GET fun getAllFruit(): Multi { return Fruit.findAll() } } The schema generated by the quarkus-smallrye-openapi extension however does not have the id as required: components: schemas: Fruit:...

How to get all paired bluetooth devices using all check and permissions in and adapter in android(java) Here is my DeviceListActivity.java: error showing is: Call requires permission which may be rejected by user: code should explicitly check to see if permission is available (with checkPermission) or explicitly handle a potential SecurityException at line number 47 and 50 of code* package com.example.bluetoothchatapp; import androidx.appcompat.app.AppCompatActivity; import androidx.core.app.ActivityCompat; import android.Manifest; import android.bluetooth.BluetoothAdapter; import...

Flutter's EventChannel not sending data to dart side I am trying to show my app in share sheet of android and I was able to successfully do it but I am not able to send data from native side to dart using EventChannel. I have updated my MainActivity to following class MainActivity: FlutterActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) Log.i("TAG123","onCreate") onSharedIntent() } override fun configureFlutterEngine(flutterEngine: FlutterEngine) {...

Ktor: Serializer for class ‘JsonLiteral’ is not found Updated my Ktor client from 1.6 to 2.3.0 and GET requests are fine but POSTs have this error: Serializer for class ‘JsonLiteral’ is not found. Please ensure that class is marked as ‘@Serializable’ and that the serialization compiler plugin is applied. With Ktor 2.0.0 this error is: No request transformation found: {“search”{“dates”“current”}} I use kotlinx.serialization. Ktor val httpClient: HttpClient = HttpClient(CIO) { expectSuccess = false install(ContentNegotiation)...