Unable to create internal directory in android 10 version I am trying to create internal directory in phone though I am able to create folder in android version 6 but its not creating in version 10. I am usinng this to create folder val mediaStorageDir = File(Environment.getExternalStorageDirectory(), "MyFolder") Above statement also showing getExternalStorageDirectory() is deprecated. How can I resolve this issue someone please let me know.Any help would be appreciated. THANKS

Make app or Shortcut to Network operators i want a app or Shortcut on my mobile (Samsung Galaxy A51 / Android 10) where i can choose the Network operator (Screen: Select automatically or Select manually) direct. at the moment i have to click Settings -> Connections -> Mobile networks -> Network operator I'm sure that is possible to write a little app (in kotlin) or a shortcut but i dont know how! Please help me. Regards Daniel

Kotlin get file name onActivityResult I am having problem in getting the name of the file selected in my onActivityResult. In java, I found out that it is possible to get it by doing String fileName = FilesManager.getFileNameFromActionGetContent(data.getData(), getApplicationContext()); But in Kotlin val fileName: String = FilesManager.getFileNameFromActionGetContent(data!!.data, applicationContext) doesn't work: Unresolved reference: FilesManager I also try to get the name by doing: override fun onActivityResult(requestCode:...

Multi-project error dependencies with gradle When i add compile(project(":engine")) to social project, i got error and i dont know why. But when i add compile(project(":social")) to engine project everythink working settings.gradle.kts rootProject.name = "projectdc" include("engine", "social", "music", "twitch") build.gradle.kts (social project) repositories { mavenCentral() mavenLocal() jcenter() } dependencies { compile(project(":engine")) } When i add this line compile(project(":engine")) i got Error:...

No implementation found for method appLauncher in gv.randomdevs\clock_app in flutter trying to call native method I was trying to call a kotlin method in Flutter to launch the app programmatically and to run in the background the stopwatch, trying to do a clock app, like this? void launchApp() async { String package = "gv.randomdevs\\clock_app"; MethodChannel platform = MethodChannel(package); await platform.invokeMethod('appLauncher', {"package": "gv.randomdevs.clock_app"}); } @override void dispose() { super.dispose(); if (stopwatch.isRunning || displayedTime != "00000.00") {...

Android + JUnit + Espresso Class not found in different directory Have issue. I have project with tests, but I need create own tests in different directory. So when I run my test from my directory I have error: Class not found: "tests.FirstTest" But when I move this class to other directory (androidTest which was created before) it's works fine. Can anyone help me? Also If I try to rename androidTest category I have error: java.lang.IllegalStateException: No instrumentation registered! Must run under a registering instrumentation.

Dealing with camera and image processing in Kotlin I want to make an app that deals with the camera and image processing. The idea of the app is that TAKE SELFIE WITH FAMOUS PERSON. I will add the images of famous persons as png and when the user takes the picture of himself, the two images somehow be one image as fusion. Please guide me when I should start or some nice libraries or even some useful courses or tutorials. Thank you

TimePickerDialog custom time intervals for Kotlin I'm trying to customize TimePickerDialog to display only 15 minutes time intervals so like 0, 15, 30, 45 to pick. Every solution I found was either for TimePicker (not TimePickerDialog, it used NumberPicker), old, not working or I somehow couldn't translate it from java to kotlin directly. I'm kinda new to kotlin so that may be it, however I need some help. Here is my TimePickerDialog that I set for my eText EditText field. eText.setInputType(InputType.TYPE_NULL);...

Recycler View how to get item when scroll i'm trying to get an item from recycler view when i scroll,my screen has tow recycler view one for my store itens and another from categories i whant to scroll my itens and change selected categorie this is an example from my screen i try to use onScrollListener following some tutoriais but i have no success, i'm believe i need to use onScrollListener but i have no idea how. I can click in some categorie and scroll...

Android Studio/Kotlin: Does something changed the use of views? I've started a new project and created a button in XML, which I wanted to use in the MainActivity, but I always get the error: Unresolved reference Was there an update in the last weeks?

Android scoped storage file access not working In my current app im creating a list of csv files in a loop like this val channelDetailDir = File(this@Mainactivity.getExternalFilesDir(null)?.path, getString(R.string.app_name) + "/"+"device") if (!channelDetailDir.exists()) channelDetailDir.mkdirs() val OutputStream = File(channelDetailDir, String.format("%s-%s.csv", name ,i)) OutputStream.writeText("name") OutputStream.appendText("\n") OutputStream.writeText("age") Then I am using this code to open the file from a file picker or...

Receiving an empty string I am trying to edit the current user email. When the write their new email it is checked by this function fun validateForm():Boolean { var valido = true val email = txtNuevoEmail.text.toString() if (TextUtils.isEmpty(email)) { txtNuevoEmail.error = "Porfavor ingrese correo electrónico" txtNuevoEmail.requestFocus() valido = false } else { txtNuevoEmail.error = null } if (!Patterns.EMAIL_ADDRESS.matcher(email).matches()) {...

How can I compare two or more values ​using the match function in Kotlin I'm using Kotlin with Mongo and I have the following code snippet: match(equal(Industry::addresses, Address::category, value = AddressCategory.MAIN.toString())!!) The category of this address can be three types: MAIN, DELIVERY BILLING If the MAIN address does not exist, I want to get DELIVERY, if it does not exist, I must get BILLING, always in that order of precedence. However, in this method he only makes the MAIN comparison and I want to be able to do the three. So, I wanted to be able to...

how do i add items to a menu from an array list? Im trying to add new items to a menu list when the user adds new categories to the list. when a user add a new category the category is saved in to firebase database and im trying to add that category to the menu list but i'm not sure how to do that without hard coding it in the meny.xml file. So is there a way to add a new item to the following list when a user adds a new category: I'm using this menu to be displayed as a pop up menu when a button is pressed. When the button is...

Empty dataset indicator for RecyclerView not showing I'm trying to show a Snackbar with a message whenever the dataset of a filtered RecyclerView contains 0 items but for some reason, the Snackbar doesn't appear at all. Is there something I've missed here? class MyFragment : androidx.fragment.app.Fragment() { private lateinit var mRecyclerView: RecyclerView private var mAdapter: MyAdapter? = null private lateinit var mSearchView: SearchView private lateinit var mSearchMenuItem: MenuItem private val myList = ArrayList()...

How can i do login user in kotlin using Room I am trying to do this login stuff for few days and its kind a boomer for me . To login i use this path : UserDao->repository->ViewModel and then i check if data is correct. Everything should be fine but i dont know why it doesnt find another option like Login or Bad Login ( i am sure that account exist becouse I added it before so i am sure) Here is fragment of code : val userEntity = mMainActivityViewModel.checkLogin(takenUsername,takenPassword)...

Android, How to avoid passing context to ViewModel. Saving Files in ViewModel How to avoid passing context to ViewModel? I've read that it is a bad practise. I want to download a file and open it. In ViewModel I have a method which downloads a file. I could pass ResponseBody to fragment and run a method saveFileToDownloads, but when I have in one RX, I can easily show a progress and save a file on background thread. saveFileToDownloads(...) returns Uri or null. Wouldn't it cause problems to use fragment context on background thread? My fragment observe an uri and run...

How to sum of values from Firebase Database in Kotlin? I have a Firebase Database with several purchases in Android app, points value is assigned for each purchase, then entries are showing by following way: When userId is log in, a button appears and when user click on it the "showInfoClient" function is called and it must show user and the amount of points. Code is: private val database = Firebase.database private val myref = database.getReference("compras") fun showInfoClient(view: View) { val userlog =...

Get parent activity viewModel from Fragment android Lets say that i have an activity ChatRoomActivity that has its own ViewModel class ChatRoomActivity : BaseActivity() { private val chatRoomViewModel: ChatRoomViewModel by viewModels() and this activity contains a ConversationFramgnet. So inside that fragment i want to observe things from ChatRoomActivity so i need the same instance. If i get it using by viewModels i dont get the values that i want. Seems to me that it makes a new instance of ChatRoomViewModel class ConversationFragment...

Kotlin Function to return boolean between date/hour range (Android) I'm searching for a simple example for a function comparing a date and hour range for example in a restaurant for opening hours , the function return true if I put in parameters Sunday - Tuesday from 10:00 AM - 23:00 PM, I don't know how to manipulate date instances, can someone provide me an example please ?

Whene i add a background to may activity the app does not enter whene i add a background to activity the app does not enter [enter image description here][1]

RxJava throttleLast() operator does not return an error item The RxJava operator throttleLast() does not return the error item (0) when an error happens. But the debounce() operator does. Why? Observable .error(RuntimeException()) .onErrorReturnItem(0) .startWith(-1) .throttleLast(50, TimeUnit.MILLISECONDS, testScheduler) // it works with debounce() .test() .also { testScheduler.advanceTimeBy(1, TimeUnit.SECONDS) } .assertValue(0) // assertion fails, no items returned

How can I run a bat file with spaces in the filepath? I want to run a bat file used to compile sass to css from within a Kotlin program, on a Windows machine. I had everything working using Runtime.exec until I switched to a Windows account that had a space in the username. From what I read, I read that using ProcessBuilder would make this easier. It seems that even with ProcessBuilder I still can't get it to work, no matter what I try. Here is my code so far val commands = mutableListOf( "cmd", "/c",...

Kotlin Function to return boolean between date/hour range (Android) I'm searching for an example with a function comparing a date and hours range for example in a restaurant for opening hours , the function return true if I put in parameters Sunday - Tuesday from 10:00 AM - 23:00 PM, What is the best way to do it? there is multiples date instances in Java/Kotlin I'm a little bit confused...

An established connection was aborted by the software in your host machine in android studio - Kotlin Before anyone marks this as a duplicate, allow me to make a few distinctions between my issue and the other similar posts: I get this "An established connection was aborted by the software in your host machine in android studio" error with only 1 project, all others will build and run without issue There are no other instances of Java/Eclipse running on my computer as far as I can tell, I've combed through my Task Manager upwards of 25 times now I'm running this on Android Studio in Kotlin,...

Kotlin-Spock:Unit Test for Graphic2d and BuffredImage I am having a difficulty how to test the below class.How Can I write a test which checks whether graphics draw "name" or not with specific width ,heigh ?And what other tests I can write against the following class using spock. And How Can I mock the exception? class NameCardCreator{ private val bufferedImage = BufferedImage(580, 380, BufferedImage.TYPE_INT_ARGB) var name: String? = null const val DISCLAIMER = "Name is Correct" fun createNameCard():...

I got this error when pressing search button in home activity it should open search activity ! any idea please? E/AndroidRuntime: FATAL EXCEPTION: main Process: com.app.mycare, PID: 7838 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.app.mycare/com.app.mycare.screens.search.SearchActivity}: kotlin.UninitializedPropertyAccessException: lateinit property resources has not been initialized at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3253) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3349) at...

How can I abstractify my GSON models? **ClassCastException** I am trying to make a module which should be able to convert data that I get from a GraphQL API to kotlin using GSON. I have an interface that I want to abstractify, So that it can handle more than one single ModelType as it does right now. data class Response(val data: Data, val errors: MutableList) data class GQLError(val message: String) data class Data(val events: MutableList) interface ICache : IObservable { val url: String var content: MutableList fun cache(query: GQL) {...

Is there a way to make this Kotlin code more clean? I have the following code but I am convinced that it could be simpler/more elegant package org.example import javax.enterprise.context.ApplicationScoped @ApplicationScoped object CanceledRequestsHandler { var identifiers = setOf() fun add(id: String){ var mutableIdentifiers = identifiers.toMutableList() mutableIdentifiers.add(id) this.ids = mutableIds.toSet() } } I wanted to limit the mutability. Any suggestions t improve my code?

Kotlin: access companion data in generic function I have a simple task in Kotlin of listing enum values: interface DisplayableEnum { val displayValue: String } inline fun printAllValues(selected: T?) where T: Enum, T: DisplayableEnum { println("All Values:") enumValues().forEach { println(it.displayValue) } selected?.let { println("\nSelected: ${it.displayValue}") } } ////// USAGE enum class MyEnum(override val displayValue: String): DisplayableEnum { A("value is A"), B("value is B") } fun main() {...