How to implement "zoom" with seekbar on CameraX? I am new to Android App development. I read https://github.com/Pinkal7600/camera-samples/blob/master/CameraXBasic/app/src/main/java/com/android/example/cameraxbasic/fragments/CameraFragment.kt for better understanding how to write the zoom function. However, my program just didn't work. I am thinking about...

Can we say that Dagger @Bind is more SRP-based than @Provides is? I'm wondering if I understand SRP correctly using the Dagger under the hood as example. @Binds processed code For example, if I have @Module abstract class ModuleA { @Binds abstract fun provideStorage(storage: SharedStorage): Storage } In such a case annotation processor generates the follow code to initialize dagger graph: private void initialize() { this.sharedStorageProvider = SharedStorage_Factory.create(); } @Provides processed code And if I have (make concrete class and...

How to track connected Wifi AP bssid in android ,while in app killed / background scenario? Using Service / Workmanager or any other architecture component of android. Especially for android 10 and above, where backgrund permission related issues due to location are introduced.

change Image Position with Seekbar I've tried to make code which change Image position with Seekbar. but when i try, it won't fully move from layout border to border. how i should modify my code to work correctly? I'm Stucked Please Help :( //Here is my Xml Code //Here is my Kotlin Code class...

Why retrofit returns null in response body? Get null response results in response body. Using retrofit, dagger and repository. Why get null in response I don't know. My model seem right. Whats the problem? MainViewModel.kt @HiltViewModel class MainViewModel@Inject constructor( private val repository: MovieRepository, @ApplicationContext private val context: Context ) : ViewModel() { val movieList = MutableLiveData() fun getAllMovies(movieName: String) { movieList.postValue(Resource.Loading())...

Kotlin - output type from type parameter I am parsing multiple CSV files and would like to provide my application with some generic parsers with logging capabilities. Is it possible to give some generic solution for it? My try to do that is: interface Converter { fun convert(fieldName: String, value: String): T? } object DoubleMapper : Converter { private val log = LoggerFactory.getLogger(this::class.java) override fun convert(fieldName: String, value: String): Double { log.info("Converting $fieldName: $value...

What is the concise way to write following code segment in Kotlin I am learning Kotlin and I have written following code snippets in Kotlin. Rather than using if-else condition is there any concise way to write following code? fun(a: int, b: int): String { Coding().apply{ if(a>b){ comment = "first value grater than second value" value = a }else{ comment = "second value grater than or equal to first value" value = b } } }

How to fix the error "There are multiple DataStores active" I have an error in the project. When I use the DataStore on my project then I get an error. I do not intend to create several datastore for my project. I do want to create a datastore for it but when running the project I get an error and I found many questions on the StackOverflow.com like 1- Git push results in "Authentication Failed" 2- <a...

Opencv Kotlin Android /Image template/ please tell me, How do I add the opencv android kotlin library? If you can in detail how and where to throw files along the path to folders and connect, and then only the explorer (root is available) and CodeAssist on the phone How to use opencv android kotlin to use the image template function (search for images on the android screen using a template)? at least links

When I make an e-mail intent in kotlin, the recipient mail is not added directly binding.navView.setNavigationItemSelectedListener { when(it.itemId){ R.id.requestWallpaper->{ val emailIntent=Intent().apply { action=Intent.ACTION_SEND data= Uri.parse("mailto:") type="text/plain" putExtra(Intent.EXTRA_EMAIL,"test@gmail.com") putExtra(Intent.EXTRA_SUBJECT,"request wallpaper")...

OkHttp Dispatcher - ArrayIndexOutOfBoundsException [KOTLIN] When executing this function, the following error appears: FATAL EXCEPTION: OkHttp Dispatcher java.lang.ArrayIndexOutOfBoundsException: length=0; index=0 How to solve? fun run(url: String) { val client = OkHttpClient() val request = Request.Builder() .url(url) .build() client.newCall(request).enqueue(object : Callback { override fun onFailure(call: Call, e: IOException) { Log.i("Falha", e.toString()) }...

How do I know, the thread is finished in Kotlin? Im trying to set text after all threads are finished. Do you have any ideas for me? fun threadStart(){ var ende = 150_000 val s = Semaphore(1) var thread1 :Thread = Thread(Runnable{ while(counter < ende){ counter++ println("1. Thread : $counter") println("${Thread.currentThread().name} 1. Thread $counter") } if(counter == ende) { while (counter != 0) { counter-- println("${Thread.currentThread().name} der Minus counter...

How to get a SurfaceTexture from a GLSurfaceView? I have the following Kotlin class: class MainActivity : AppCompatActivity() { private var glSurfaceView: GLSurfaceView? = null override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) glSurfaceView = findViewById( R.id.surfaceView ); } } I could create a Kotlin renderer like glSurfaceView.setRenderer(...) and there I could get a SurfaceTexture, but then I have to implement methods like...

Google pay Api in Jetpack compose - How to I can't find resources on the internet on How to achieve the google API integration into an Compose based app. I need help, especially in the AutoResolveHelper.resolveTask, how to do it in compose. Thank you for your answers. (That's mind blowing that there is no more documentation on this API, it's pretty difficult to implement).

is it possible to detect selfie image in android? I have list of images from MediaStore.images.media. is it possible to detect selfie images? I have read about mlkit Selfie Segmentation, but I guess it is about changing the photo?

How to add CountDownTimer to a ViewModel Kotlin? I am trying to add a CountDownTimer to a ViewModel to be able to rotate a screen without losing data in this case a countt timer. In my code, I don't know how to return countdowntimer value from a ViewModel? My code: class MainActivityViewModel: ViewModel() { val countt = MutableLiveData() private val timer = object :CountDownTimer(30000, 2000){ override fun onTick(millisUntilFinished: Long) { countt.value = millisUntilFinished } override fun...

How to properly use the result from a a get query from a Room database. Android/Kotlin/MVVM In my app I have a list of workouts, and at one point a want to get the name of one workout using its id in the Room database. For this, I made a SQL query in the DAO class to get the workout name using its id. my main problem is how to get it from the viewModel to the view. The app uses coroutines. DAO function: @Query( "SELECT workout_name FROM workout_table " + "WHERE id = :workoutId" ) suspend fun getWorkoutName(workoutId: Long): String Repository function: @WorkerThread...

Get last child from firebase I am trying to add rides to my firebase and I am using the following code: dbref = FirebaseDatabase.getInstance().getReference("Users") databaseQuery = myRef.orderByKey().limitToLast(1) firebaseAuth = FirebaseAuth.getInstance() databaseQuery.addValueEventListener(object : ValueEventListener { override fun onDataChange(snapshot: DataSnapshot) { var BuleiaId = 0 for (snapshot in snapshot.children){ var viagem...

how to access function or variable in class or activity from androidmanifest? is it possible to replace the value of "@string/AdMob_app_id" with a function or variable from another class or activity? currently the admob app id value comes from a string and I want to change the source, for example I get the Admob Id from the parsing API or from the SharedPreference that I have saved. How to?

jetpack compose : creating LazyColumn with items parameter LazyColumn(modifier = Modifier.fillMaxWidth(), state = listState) { //ABC Category Items item { ABC(componentCoordinator = componentCoordinator) } //DEF Category Items item { DEF(coordinator = screenCoordinator) } //IJK Category Items item { IJK() } //XYZ Category Items item { XYZ(coordinator = screenCoordinator) } } @Composable fun ABC( viewModel: ViewModel = hiltViewModel(), componentCoordinator:...

Compose App to convert temperature with a bug I am working through the Jetpack Compose Essentials book, in Chapter 40 a code is given to make a temperature conversion app. But there is a bug in the program and I'm not finding it. The app converts temperature in the default direction, but when trying to convert in the opposite direction by changing the temp switch, the switch simply changes back, and no result appears. The main activity: class MainActivity : ComponentActivity() { override fun onCreate(savedInstanceState: Bundle?) {...

Call Kotlin method from Gradle Task I am trying to build a utility Gradle task, that will read some code (using reflection) in a specific package and generate a report (some json structure for example). This code reader is in a specific package, and I am looking to call this function somehow from tasks.register in gradle. Has anyone done something like this? Or has idea how-to?

Android In dutch language comma (,) is interpreted as dot (.) I am using the following code to format the amount entered by user in EditText. fun String.formatWithComma(): String { return try { val formatter = DecimalFormat("#,###,###") formatter.format(toDouble()) } catch (ex: Exception) { return "" } } But when I switch the phone language to dutch, the comma is converted to dot (.). Like if user wants to type 4,323 , it is converted to 4.323.

What is the Best way to Code in Recycler View Adapter I Use RecyclerView to show my data this is my custom item I want to change this green button value on run time depending on some conditions I change values in onBindViewHolder this is the code where I change override fun onBindViewHolder(holder: CustomView, positionn: Int) { val tournamentviewmodel = filterdata[positionn] holder.bind(tournamentviewmodel) if...

Can't convert object of type java.lang.String to type com.example.gallaryapp.ImageModel I tried to find the solution to this error but I couldn't find one. Everything was working fine but now I'm getting this error and I don't know the reason. Error: 2022-05-23 120749.092 7034-7034/com.example.gallaryapp E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.gallaryapp, PID: 7034 com.google.firebase.database.DatabaseException: Can't convert object of type java.lang.String to type com.example.gallaryapp.ImageModel at...

Map is not loading on OsmDroid : Android Studio I've used OSMDroid Library but it's not loading only a check box is being visible like->

Fragment switching causes fragment to recreate itself instead So for some reason I am unable to switch between to specific fragments and when it should switch between fragments it keeps recreating the original fragment instead of replacing it with the intended fragment. This is my fragment from where I want to switch to a different fragment: package ikanda.cleverspace.fragments import android.content.Context import android.os.Build import android.os.Bundle import android.os.Handler import android.os.Looper import android.util.Log import...

Material Button onClickListener not being called It looks very simple, but I've tried everything (including clean project) and it just doesn't work. Any help is appreciated. :) Here's my SignatureActivity code: class SignatureActivity : BaseActivity() { private lateinit var binding: ActivitySignatureBinding private lateinit var viewModel: SignatureViewModel override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_signature) } override fun...

Android - Wrong dimen values are used when passing from portrait to landscape I have a custom component and my problem is; when I open my fragment in Tablet in Portrait, it uses true dimen value 72dp (which is in my values-sw600dp folder) but when I rotate to Landscape, it still uses this value. But I have values-sw600dp-land folder and value is 160dp. when I open my fragment in Tablet in Landscape, it uses true dimen value 160dp (which is in my values-sw600dp-land folder) but when I rotate to Portrait, it still uses this value. But I have values-sw600dp folder and...

How to select multiple checkboxes using one checkbox in android kotlin? Here is my activity code:- class SelectCoursesActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_select_courses) all_courses.setOnCheckedChangeListener { _, _ -> if (all_courses.isChecked) { scienceCourses() artsCourses() commerceCourses() all_science.isChecked = true...