compose navigation handle when composable returned after back Let's say I have 2 screens HomeScreen and DetailScreen and use compose navigation to navigate between screens. The graph is HomeScreen -> DetailScreen. When I pressed back on DetailScreen and returned to HomeScreen I want HomeScreen reacted to that and had to call some method. I want HomeScreen composable to call some method every time he shows up on the screen. How to achieve that? NavHost( navController = navController, startDestination = "Home" ) {...

Passing Bitmap through activities I have two activities and I am trying to pass image by using Serializable way. How to do this? Is it possible to pass image by using Serializable way? Any ideas please. val resultImage = findViewById(R.id.resultImage) val getContent = registerForActivityResult(ActivityResultContracts.GetContent()) { uri: Uri? -> resultImage.setImageURI(uri) } val galleryBtn = findViewById(R.id.galleryBtn) val nextBtn = findViewById(R.id.nextBtn)...

Formatting a date time string I have the following date which we get from an API 2022-11-23 061231 I am wondering if my approach is the best. And I need to display in this format 23 November 2022 I am using substringbefore to remove the time portion so I am left with the following: "2022-11-23" I am using org.threeten.bp val DAY_MONTH_YEAR_DISPLAY_FORMATTER = DateTimeFormatter.ofPattern("dd MMMM yyyy").withZone(ZoneOffset.systemDefault()) fun formatAsFullMonthDisplayDate(localDateTime: String): String { return...

Countdown animation for LocalTime val dateNow = LocalDateTime.now() val formatter: DateTimeFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HHmmss.SSSSSS") val dateTime = LocalDateTime.parse(it?.LastUpdated, formatter) println("The date is :" + dateTime) val duration = Duration.between(dateTime, dateNow).toMinutes() val countDown = LocalTime.MIN.plus( Duration.ofMinutes( duration )...

Round decimals to the closest non zero digit in Kotlin I am trying to print multiple doubles with different decimal points, I have search for a while but I cannot find the exact solution for my need. Let me explain it as an example, so there are a few double variables here: 1.23 0.330 1.00 1.001 The result I want: 1.23 (unwanted 0 removed) 0.33 1 (unwanted 0 removed) 1.001 Is there any pre-developed syntax for this or do I have to make the algo myself?

Read/Write data from/to PHP database and displaying data I hope you are all doing well. I have run into a few problems and can't seem to find the answer online in an applicable way to my scenario. I am coding in Kotlin. I have a login activity with a username and password field, and a login button. I have managed to verify the login details by setting specific credentials but I now have a database, SQL, linked to my android app. How do I verify the login credentials the user input against the database and check if the user is active? Name: Bobby

Where I can find Kotlin String plus method implementation? Where I can find Kotlin String plus method implementation? When I track who calls String#plus, why Intellij IDEA point to "+" ? If String#plus is equal to "+", how does this implement?

Firebase function not returning a response in Android I am trying to add M-PESA checkout option in my app and I need to confirm that the payment made by the user went through before confirming the order. My callback URL is a Firebase Function. While I am able to show the STK-PUSH, the callback URL doesn't send any response hence there's no way for me to know if the payment went through or not. I followed <a...

How to send SMS automatically in Flutter &amp; Kotlin in foreground state, background state and terminated state I am receiving and sending message through Telephony. It is working perfectly when the app is in foreground state but it is not working when the app is in background, though my app is receiving message in background but it is giving error on sending background message. Permission in AndroidManifest.xml file Method Channel for sending SMS import android.telephony.SmsManager val CHANNEL = "example.sms" override fun configureFlutterEngine(@NonNull flutterEngine: FlutterEngine) {...

how to encrypt using a private key I have a Private key file that looks like this -----BEGIN PRIVATE KEY----- [content] -----END PRIVATE KEY----- i want to encrypt String data using this key i am trying like this : fun encryptData(txt: String, pk: String): String { var encoded = "" var encrypted: ByteArray? = null try { val publicBytes: ByteArray = Base64.decode(pk, Base64.DEFAULT) val keySpec = X509EncodedKeySpec(publicBytes) val keyFactory: KeyFactory = KeyFactory.getInstance("RSA")...

Where should WorkManager be placed within Clean Architecture? I created a WorkManager that retrieves the current Bitcoin price from an API every 60 minutes and displays it to the user as a notification. However, I am confused about how to integrate WorkManager with Clean Architecture. I created an infrastructure layer for WorkManager. Do you think this is correct? In your opinion, where should WorkManager be placed in Clean Architecture?

Flatten 2D list with indices I am looking for an idiomatic method in Kotlin (JVM) to flatten a 2-dimensional list. But, unlike the existing .flatten(), I would like to retain the individual indices, similar to .withIndex(), but 2-dimensional. Example: // Before [ ["a", "b", "c"], ["d", "e"], ["f", "g", "h", "i"] ] // Afterwards, something like [ (0, 0, "a"), (0, 1, "b"), (0, 2, "c"), (1, 0, "d"), (1, 1, "e"), (2, 0, "f"), (2, 1, "g"), (2, 2, "h"), (2, 3, "i") ]

CSRF in Tests stopped working with Spring Boot 3 and Spring Security 6 We got the problem described here and used the solution linked there and provided by Spring. The solution fixes our end-to-end using WebClient and a filter function, but unfortunately introduces Problems with...

Fragments run twice in Jetpack Compose Fragments in Jetpack Compose starting two times. LaunchedEffect(Unit) in fragment is called twice. What could be the problem? @Composable fun ManagePermissionsScreen() { LaunchedEffect(Unit) { Log.d("LOADED", "Loaded") } Column( modifier = Modifier .fillMaxWidth(), horizontalAlignment = Alignment.CenterHorizontally ) { Column( modifier = Modifier .verticalScroll(rememberScrollState())...

Cannot handle Spring Security exceptions I'm learning how to create a REST API using Spring Boot and everything is going well so far, but I reached my first block: I cannot handle exceptions that are thrown while I'm performing an authentication, using Spring Security. I created an ExceptionHandler class in my project, annotated with @ControllerAdvice, and I'm able to catch different exceptions in my applications using a SecurityFilterChain, however I learned that I can't catch exceptions thrown during authentication because those...

Text is not updating even though I am using remember and mutableStateOf I've run into a strange issue in Jetpack Compose. I am currently working on an app which shows data on a graph from an external API. I am fetching data with no problem, but my graph didn't recompose with new values. After debugging, I started to question composition within my app. For debugging purposes, I created a simplest possible composable function to see if everything is working properly. And it doesn't work at all... I tried code below in different project and everything is fine...

How to use xml:s android:id in Jetpack compose? How can I use xml:s android:id like this: In Jetpack compose? I'm thinking something like this: Text(modifier = Modifier.layoutId("randomId"), text = text) I'm asking because I use Appium which can identify android:ids and I would like to do the same for Compose too.

Compose UI recompositioned multiple times and start navigation start destination set too late I have weird behavior in my compose app, it looks like UI is being recompositioned multiple times, but I don’t really know why. Problem is related to main activity and root nav graph: @AndroidEntryPoint class AppMainActivity : ComponentActivity() { private val viewModel: UserStateViewModel by viewModels() override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) installSplashScreen().apply { setKeepOnScreenCondition {...

Regex to find the last occurrence I need the matches between /s and / and last occurrence. I expected to get: 16000-wc-3 The string: I_p71tKYeMI/s16000-132/yWwCLcBGAsYHQ/s16000000/s16000-wc-3/EexXdUDWkAEbYXH.jpg This is my actual regex: (?

Cannot resolve symbol 'itemView' I am trying to follow along on a youtube video on how to fetch data from an API with RecyclerView. But when I enter the following code (which is identical to the working code from the youtube video: package com.example.myapplication; import android.view.View; import androidx.recyclerview.widget.RecyclerView; class PostAdapter { } class PostViewHolder(itemView: View): RecyclerView.ViewHolder(itemView){ } I get an error on itemView saying Cannot resolve symbol 'itemView' .. I cannot find...

Kotlin coroutines with Spring JPA blocking repository I'm trying to use kotlin coroutines with "old-style" Spring JPA repository. I create a new coroutines scope and run all JPA calls in "async". I see that even with non reactive JDBC I improve my throughput. But I wonder, may be exists some coroutines wrapper on Spring JPA repository? Something created with reflection and Spring "magic"?

Show RecycleView items count with ViewModel and LiveData I'm making a expense_tracker app, but I run into some sort of problem. I made a recycleview to show all history transactions and the next step is to show all transactions by a number. I must make it with viewmodel and live data, but I can't figure it out how to check the transactions array when its changes and change the viewmodel data too... Some of you have an idea for it? Thanks.

my app crashes when i download it from play store my app does work fine when I run it on Android studio emulator or even when I install it on my real device but when I download the released version on the play store, it crashes I try it on different devices and it's the same, any idias?

Android Alarm Manager doesn't fire alarm when application is closed guys, am currently building an application with compose, and i need to fire a notification at a given time to users, so whenever users click on a button on my list item, i want to get the time of that item and set an alarm pending intent for it, and fire it when the times reaches, So am working with android alarm manager, but whenever i close my application the alarm doesn't broadcast my notification, but if i leave it open, it fires the alarm notification successfully, i dont know what i am...

Recyclerview not showing any data and errors in logcat [duplicate] I don't know why my recyclerview not showing and data. println in MainActivity is working corectly \ files/code MainActivity file fun retriveDataFromDatabase() : ArrayList { databaseRefrence.addValueEventListener(object : ValueEventListener{ override fun onDataChange(snapshot: DataSnapshot) { userList.clear() for (eachUser in snapshot.children) { val user =...

FeignClient error: url values must be not be absolute I have an error when starting SpringBootApplication: Unexpected exception during bean creation; nested exception is java.lang.IllegalArgumentException: url values must be not be absolute. I'm a beginner is SpringCloud, but I worked with Openshift (On first look it's basically the same things). I have a cluster with GatewayApplication and some business microservices in it, wrote on Kotlin. Inside cluster microservices communicate by FeignClient without authentification. In consumer-service it...

How to create a custom component in android with linear layout So I'm working on this project that I want to create my custom edit text In such a way that I will have three different views Imageview, editText,ImageView All lined in a linearlayout Most preferably in kotlin, but Java is also acceptable Thanks in advance I have done this in my activity.xml and it looked so good, so I want to extract it as a component so I can reuse it in other files

Real method getting called while setting up mock on spy It is driving me crazy why the real method getting called during setting up the mock on spy. @Service class A(){ fun someMethod():String{ println("inside real method") return "result" } } test: @SpyBean private lateinit var a:A @Test fun test(){ Mockito.`when`(a.someMethod()).doReturn("mock_result") println("empty test ended") } result: inside real method empty test ended Once change from Sypbean to Mockbean then it works as expected: @MockBean private lateinit var a:A...

saveBackStack FragmentTransactions must use setReorderingAllowed(true). Found BackStackEntry{} that did not use setReorderingAllowed(true) A HomeActivity class has a bottom menu navigation which opens up a fragment class. Everything is good to navigate inside the fragment class. However, when I click any other bottom menu navigation item from this fragment class, it immediately crashes and results with the below error, 2022-12-07 103941.828 8956-8956 AndroidRuntime pid-8956 E FATAL EXCEPTION: main Process: com.my.app.debug, PID: 8956 java.lang.IllegalArgumentException: saveBackStack("f1a147ba-4bb3-449c-87b8-cf73f7bf463c")...

Jakarta/Spring Boot - Entity With Kotlin List&lt;Enum&gt; Not Booting I have been helping my team upgrade our Maven/SpringBoot/Kotlin project from Spring-Boot 2.7.5 to Spring-Boot 3.0.0. However, an issue on startup is preventing us from progressing. This has not been an issue before Spring-Boot 3.0.0. Upon booting the application, I receive the following stack trace: org.springframework.context.ApplicationContextException: Unable to start web server ... Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name...