How to implement custom TabLayout with ViewPager2 with recyclerView in Kotlin? I am stuck with this problem and I am not getting any solution to that, I want a tablayout with viewpager2 which has recycler view inside it. MainActivity.kt:- @RequiresApi(Build.VERSION_CODES.Q) override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) binding = ActivityMainBinding.inflate(layoutInflater) setContentView(binding.root) pager = findViewById(R.id.view_pager) tab = findViewById(R.id.extra)...

get model list from a json array kotlin In my code I am trying to get Income type object list from a json file val fileJson = File( Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS), "Income.json") val strFileJson: String? = fileJson.readText() val PreviousJsonObj: JSONObject = JSONObject(strFileJson) val array: JSONArray = PreviousJsonObj.getJSONArray("Incomes") val typeToken = object : TypeToken() {}.type IncomeArry = Gson().fromJson(strFileJson, typeToken) But...

`After Adding kotlin kapt plugin it causes Exceptions I am using Dagger so I have to use Kotlin kapt for annotionProcessor, so I add kotlin kapt pugin in my project. It causes exceptions. I spent a whole day on this issue. Tried many thing but not succeed. *Here is my Project level buil.gradle // Top-level build file where you can add configuration options common to all sub-projects/modules. plugins { id 'com.android.application' version '7.4.0' apply false id 'com.android.library' version '7.4.0' apply false id...

Best way to get address from longitude and latitude Kotlin Android [duplicate] I want to get the street address from longitude and latitude. Currently I am using geocoder.getFromLocation(latitute,longitude,1) But is unstable and does not work sometimes. Any idea what else I can use. Have a nice day!

How to create a StateFlow list from a Flow in android for a LazyColumn I am new to using Flows in Kotlin and I want to get a Flow from Firestore. I am getting the list in my repository class like so: override suspend fun getReviews(uid: String): Flow = firestore.collection(LOCATIONS_COLLECTION).document(uid) .collection(REVIEWS_COLLECTIONS).snapshots() .map { snapshot -> snapshot.toObjects() } I am trying to follow an MVVM architecture and want to get the objects as a state flow so that I can load it as a LazyColumn list. I...

Avoid escape foward slash in Android request with JSONObject I'm trying to do a network request with HttpURLConnection and JSONObject, like this. postData = request.getBody().toString().getBytes(StandardCharsets.UTF_8); wr = new DataOutputStream(connection.getOutputStream()); wr.write(postData); wr.flush(); The result I expected is bellow: {"fileName":""0NKTqOdZ154T/ksxOwdx0VzHNQmGfM0UlpPrreb0vFnGh/Rw3UZEx94aUAuZtr8lW/da07/h/RNoyXpMqpGXKA===="} But, everytime I've seen the log inside the gateway, the request content is ESCAPING FOWARD SLASHES, like...

My app crashes when I click the buttons on MainActivity I'm new to android development. Trying to practice some stuff I learnt on android developers by creating an app that displays two buttons on the mainactivity, the two buttons, on click, should launch a "studyActivity" and a "testActivity" respectively that displays a list of study/test cards with a viewHolder. The app crashes when i click either of the two buttons I don't know where the problem is coming from. It builds without an error. Here's the MainActivity package com.r.cxrslides import...

Place an Image Vertically Centered in Jetpack compose I have the above UI Screen. In that layout the "Trash" icon should be aligned Vertically_centered , as of now its not Vertical Centered. How to achieve this in Jetpack compose without using Padding. Please find my code below in which I'm using a column with 2 rows in it.: @Composable fun DisplayShelfInfo(shelfHistoryItem: ShelfHistoryItem){ Column(modifier = Modifier .fillMaxWidth() .height(60.dp)...

Android coroutines "Possibly blocking call in non-blocking context could lead to thread starvation" I have code like this: CoroutineScope(Dispatchers.IO).launch { binding.titleIcon.setImageBitmap( BitmapFactory.decodeStream( URL(titleIcon.formatImageUrl()) .openConnection() .getInputStream() ) ) } This code gets me warning from the question title on the both lines: .openConnection()...

Third Party SDK won't read imports, even when the dependency is in the Build Gradle I had imported a Third party SDK from another project. I had set it up and it wouldn't read a certain Dependency, even when I had put the dependency in the build gradle. Here's the SDK And in the build.gradle // dependency needed to use SDK implementation "org.altbeaconandroid beacon library2.16.3"

What is the best way to make a back button that changes the image that's displayed I'm trying to make an app that has a next and back button that shows different photos, my next button works but the back button does not. I used someone's code I found online for the next button (theirs was just a "change button" button) and altered their code to just be a next button instead. Then tried altering the next button to just do the opposite for the back button but I'm running into problems. I apologize if this is a simple question, I'm new to coding in general and don't have much...

Where do i get "view" from in a compose standard project? I need this for the: public abstract boolean onTouch (view v, motionevent event). method. Since i have no pre knowlege of android development i dont even know what view is. Seems like for small apps with compose i don't need them.(Simple off topic question: do i need to learn how to use view for compose ?)

How do I take data from a firebase database and show it in a recycler view? Im trying to get data from a firebase database collection and show it in a recycler view. My collection is called savedDailyPlan. I am super new to kotlin and to android studio and I'm having a hard time finding the solution to this problem. This is my data class: data class DoneExercise( var exerciseName : String = "", var weight : Int = 0, var sets : Int = 0, var reps : Int = 0, var date : Timestamp = Timestamp.now() ) This is my adapter: class...

How to make Compose render my custom Shape? I have this Composable that draws some text with a custom Shape behind it: @Composable fun TextWithIcon(text: String, icon: Shape) { Box(Modifier.size(48.dp) .border(1.dp, MaterialTheme.colors.secondaryVariant) .background(MaterialTheme.colors.background) .padding(4.dp) .border(2.dp, MaterialTheme.colors.secondaryVariant, icon) .padding(4.dp), contentAlignment = Alignment.Center) { Text(text, color = MaterialTheme.colors.onBackground) }...

Problems implementing Google Sheets API to Android Studio I am trying to make a kotlin app that gets data from a google sheets through the sheets api. The problem of this is that many of the videos showing this are outdated and the documentation for the sheets API seemingly doesn't have the Android section that it used to have. Does anyone know if this is still possible? If so could anyone point me to a good resource to help me I've already tried many outdated videos & the java section of the Sheets API Documentation, which have not worked for me

Can't access variable in data class kotlin why can't I access a variable from another class? (the variable is in the data class, and when I want to access it, it throws "unresolved reference") Here's what It looks like: The code that tries to access the variable: import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.widget.TextView class questionActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState)...

Polymorphic serialization of sealed hierarchies with generic type parameters Using Kotlin serialization, I would like to serialize and deserialize (to JSON) a generic data class with type parameter from a sealed hierarchy. However, I get a runtime exception. To reproduce the issue: import kotlinx.serialization.* import kotlin.test.Test import kotlin.test.assertEquals /// The sealed hierarchy used a generic type parameters: @Serializable sealed interface Coded { val description: String } @Serializable @SerialName("CodeOA") object CodeOA: Coded { override val...

Andorid, Gradle lock file issue Andorid Gradle Lock File Excaption I am working an Android project and i am using kotlin for development , İ did some changes and closed the project and other day when i come and open the Project again , i got issue like this Could not create parent directory for lock file C:\Program Files\Java\jdk-19\wrapper\dists\gradle-7.4-bin\c0gwcg53nkjbqw7r0h0umtfvt\gradle-7.4-bin.zip.lck I have searched lot of site and i found nothing , There was a same question in the Stack Overflow but answers...

Should instance variables used inside suspending functions be Volatile? Consider this example: class VolatileDemo { private var blockedUserCount = 0 suspend fun countBlockedUsers() { while (moreUsers()) { val user = getNextUserFromDb() // calls another suspending function if (user.isBlocked()) blockedUserCount++ // may execute in a different thread, so have a stale value? } println(blockedUserCount) } } Questions: Do we need to have blockedUserCount volatile (because multiple threads...

can i build kmm app without mac, but with iphone? [closed] I have an a great idea for app, but i have iphone and no mac, so can i build and test app just on my iphone without mac? I think i can do something like that with android but will it work with iphone? I know about virtual machine, but it is too slow. If i cant test my app on iphone i will try vm. So what do u think? Can i try to develop ios app without mac. Mac is too expensive to buy it just for 1 app. I also have an ipad, maybe there some posibilites with that. This question body does not...

No error in gradle.build none while compiling but the app keeps crashing everytime Manifest file is showing error on 6th line, cant really figure out tried updating dependencies

How to sort items in RecyclerView by value from its item TextView How to sort items in RecyclerView by value from its item textView? In my HomeFragment's RecyclerView i have Occurrence with name that has calculated last recorded DateTime (Occurrence class has list of DateTime's) What i want is to have sorted items by those red, orange and green values: -4h 30m : should be first, 0h -13m : should be second, 22h 16m : third, 13d 17h 36m : fourth, 20d 17h 37m : fifth and so on <a href="https://i.stack.imgur.com/3MFxY.jpg" rel="nofollow noreferrer">screenshot...

Multiline TextView Edge Clipped But Not During SharedElementTransition I have an issue where my TextView has characters clipped on its right side only for certain pieces of text. To specify: I don't have a custom font or italic text; it's standard text. Here's an image, there should be an "i" where I have the circle, it's "nitrosoethane" not "ntrosoethane": I have found multiple workarounds to fix the clipping, such as setting a text shadow or sub-classing TextView. They work, but they...

How make a simple infinite animated progressbar I am currently working on an Android app and I am trying to create an infinite animated progress bar using Jetpack Compose. I have been looking through the documentation but I am having trouble finding a straightforward example of how to create this. Can anyone provide a simple example or point me in the right direction to get started?" @Composable fun LoadingProgressBar(isLoading: Boolean) { val animation = remember { repeatable(periodMillis = 1000) { animation(0f,...

Kotlin. During the launch of the application, it restarts I can't figure out the problem. I look at logcat, and I see that the application starts onCreate, and then there is onDestroy and onResume again and it works. But due to the fact that there is onDestroy, the application does not work correctly. When it starts, there is a Bluetooth connection and onDestroy breaks the sequence of actions. Please help me figure out what the problem is. Thank you in advance. 122832.533 AdrenoGLES-0 I Build Config : S P 10.0.7...

compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0 I am rebuilding my android project which is in java and some classes are written in kotlin. I have search on google but my problem didn't solve. I am getting below error while building my project: /home/bansal/.gradle/caches/transforms-2/files-2.1/0bea321a20a76ca878f594ef198fedcf/jetified-core-ktx-1.10.0-alpha02-api.jar!/META-INF/core-ktx_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0....

What mean is Class.() in Kotlin? I saw it in some Class Initialization. Something like: Want to know the meaning of this grammar

Problems when working with Noise canceler in android Good day! In the work task, there was a need to implement a noise suppressor when working with a user's record. The problem is that despite the fact that everything was implemented according to the instructions from developer.android (https://developer.android.com/reference/android/media/audiofx/NoiseSuppressor) - it feels like NS just does not work . What could be the...

Change the width of Tab in Jetpack Compose ScrollableTabRow I want to modify the width of each Tab, but I can't do it. I know it can be customized, but I just want to modify the width, is there any way? @OptIn(ExperimentalPagerApi::class) @Preview @Composable fun TabPreviewTest() { val scope = rememberCoroutineScope() val colorScheme = MaterialTheme.colorScheme val pagerState = rememberPagerState(initialPage = 1) val titleList = rememberSaveable {...

Can't update data in Firestore with TextInputLayout I am using TextInputLayout on Edit Profile screen and I wanted to update datas in that screen but when I used that, datas update to like "com.google.android.material.textfield.TextInputLayout{9544eb3 V.ED..... ........ 93,232-931,455 #7f0a00d8 app:id/etEditName aid=1073741880}" I will leave my codes. ProfileFragment.kt .... binding.btnEditProfile.setOnClickListener { val dialog = LayoutInflater.from(context).inflate(R.layout.edit_profile_dialog, null)...