Unable to resolve host "websitev1.azureweb.net": no address associated with hostname in android app I want to link my android app to the development server I run the server URL on my local computer and then run the android app on my mobile but it giving me this error: Unable to resolve host "websitev1.azureweb.net": no address associated with hostname in android app On the local computer, the web link is running and showing the "API Running" as properly but I got the problem on my android device when I run the app.

Trouble with mainUIThread and database acces I have function where i need to get from db data and put in UI through adapter but if i make in second Thread i catch exception Only the original thread that created a view hierarchy can touch its views. and if i make in mainThread i catch exception Cannot access database on the main thread since it may potentially lock the UI for a long period of time. (db.dao.drinks() - get all drinks from database Room and return MutableList< Drink >) I solved the problem but this way so bad, i guess. How...

Hibernate inheritance. Save entity to the specific table based on column value I’ve a class with a “type” field, and I need to save entities to the specific table based on that type. I achieved exactly what I needed with InheritanceType.TABLE_PER_CLASS, but it makes UNION query on all 5 tables when fething, so I’m trying to do it with InheritanceType.JOINED so far I got: @Entity @DiscriminatorColumn(name = "FOO_TYPE", discriminatorType=DiscriminatorType.INTEGER) @Inheritance(strategy = InheritanceType.JOINED) abstract class Foo( @Id var id: UUID? = null...

How to serialize kotlin sealed class with open val using kotlinx serialization import kotlinx.serialization.Serializable @Serializable sealed class Exercise(open val id: String) { @Serializable data class Theory(override val id: String) : Exercise(id) } I have such kind of sealed class in my code, and compiler says me: Serializable class has duplicate serial name of property 'id', either in the class itself or its supertypes. Is there way to have open val in serializable sealed class, which works correctly when overriding it?

How to import sygic maps in android studio? I tried to follow instructions from official site for sygic maps but nothing help. If someone can help with this or have instructions how to start and import sygic maps in android studio please answer me.

Keeping a recyclerView loaded during fragment switching? Kotlin I'm relatively new to coding, and now I've run into an issue that I can't seem to fix. I just recently switched to a fragment based approach, rather than an activity based approach, and my issue (I think) is that my fragments are being destroyed upon loading another one. You see, on my Home Fragment (auto generated inside Android Studio), I have a recyclerView that shows the User's "products". When I switch to another fragment, and then back, the Home fragment takes a while (aswell as uses a...

Show dividers in SeekBar based on array I have an integer array of values, for example: [1000, 2000, 2500, 3000, 4000]. I have a seekbar, but I am not sure how to set the dividers/ticks to match the array so that when I move the seek bar, it can go to those relevant values. Something like this (Note I drew this in Paint just to be used as an example): Note: I made use of <a href="https://github.com/warkiz/IndicatorSeekBar" rel="nofollow...

How to apply smooth color transition for textview from left to right android? Hi i need to apply color transition for textview and then move to next screen. What i have tried is I tried with static color in textview using spannable string, but I couldn't apply dynamic smoothly color transition moving on textview. Here is what I have tried. Example source code : textView = (TextView) findViewById(R.id.textView1); textView.setText(mainText);// length of string is 22...

Map String with Emojis to Array&lt;String|Char&gt; I want to convert my String to Array or List of Strings or Chars like: Array or Array. Example: val myText = "Ab😟+🤹2👨🏻#✅'👨ü👨🏿{" // Parse and print to Log Should: [ "A", "b", "😟", "+", "🤹", "2", "👨🏻", "#", "✅", "'", "👨", "ü", "👨🏿", "{" ] // Array contains Strings or Chars Java/ Kotlin method what doesn't work because of Emojis on Android: myText.toList() // ❌ Fails because of Emojis myText.toMutableList() // ❌ Fails because of Emojis

How to change 3D Object Node Position Change in ARCore? I am trying to set Node Position (one here as example): faceNode.setLocalPosition(new Vector3(faceNode.getLocalPosition().x, (float) (faceNode.getLocalPosition().y+22.2), (float) (faceNode.getLocalPosition().z-50))); But the results always same.

Can I write gradle buildSrc in Kotlin? I'd like to write my Gradle buildSrc in Kotlin instead of Java, since everything else is Kotlin too. I've tried .kt files in buildSrc/src/main/kotlin and in buildSrc/src/main/java, but neither will be compiled. IntelliJ does recognize them at least when I put them in /java, but they are not found when running Gradle tasks. So, how do I make Gradle look at Kotlin build sources?

Retrofit2 - Is possible to loop @Part of retrofit? I have an issue with retrofit, the back-end only can use only @Mutilpart, i try use @PartMap map: HashMap but still don't work. is possible to loop or another solution please help. @Multipart @POST("orders/total") suspend fun orderList( @Part("Order[0][product_id]") product_id: RequestBody , @Part("Order[0][quantity_id]") quantity_id: RequestBody , @Part("Order[1][product_id]") product_id2: RequestBody , @Part("Order[1][quantity_id]") quantity_id2: RequestBody , ): Response

com.google.android.material.behavior.HideBottomViewOnScrollBehavior issue with Snackbar I have a Coordinator layout as my parent layout in my activity and a Floating Action Button. When i show a SnackBar on the screen, it appears below the FAB and pushes the FAB up which is a normal behavior. Now i want to hide the FAB on scroll and i used this in my FAB app:layout_behavior="com.google.android.material.behavior.HideBottomViewOnScrollBehavior" and it works fine. But upon doing that, when i show my snack bar, it appears on the FAB instead of appearing below the FAB. Can anyone...

Unexpected Weird Error Kotlin "Sealed" class usage with 'when' I have come across a very weird error - kotlin sealed class with when. this my Sealed class sealed class Resource { object Loading : Resource() data class Success(val data: T) : Resource() data class Error(val exception: Exception) : Resource() data class GenericError(val errorResponse: ErrorResponse) : Resource() } this my when class when (resource) { is Resource.Loading -> { is Resource.Error -> { } is...

SQLIte Database is not being created in Kotlin app I creating a database application on AndroidStudio using Kotlin for a University project. I am trying to create the database using SQLite. Below is my DBHelper kt file that I created to start the database. When I call one of the functions to create the database, the application crashes. When I check the .db files from the database in SQL Cypher the tables do not appear. The errors aren't descriptive enough for me to find out how to fix it. Thank you for your help. package...

How to set Lottie file to menu item? I want to create bottom navigation and its icon has Lottie file. could it create a custom menu item? could it add a custom attribute to the menu item? **

How to use the get method of Kotlin String I know how to get only one character from a string: val str = "Hello Kotlin Strings" println(str.get(4)) //prints o But how I can get several characters in one method println(str.get()) for example: val str = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" print(str.get(8,11,14,21,4,24,14,20)) //ERROR How to get "ILOVEYOU" using only one println(str.get())? Please any advice or a link to guide me. Thanks

DataBinding ViewModel get editText size and send it to new activity Hello I'm starting with MVVM and DataBinding so what I'm trying to do is to create a simple viewModel that contains a field let's say name and when user clicks on a button it checks if the editText is empty or not, if so go to next Activity (sending the name). What I've tried is : This is my ViewModel class MainActivityViewModel : ViewModel() { private val _userName = MutableLiveData() val username : LiveData = _userName //Here I'd like to know if I have to use MutableLiveData...

Is it possible to trigger the recreation of dependency which has already been created when using hilt dependency injection library? Any way to make hilt library recreate a dependency after it has already been created? Code Example @Provides fun provideBaseURL(): String = baseUrlVariable @Provides fun provideRetrofitInstance( baseURL, String gsonConverterFactory: GsonConverterFactory ): Retrofit = Retrofit.Builder() .baseUrl(baseURL) .addConverterFactory(gsonConverterFactory) .build() If at some later point i change value of 'baseUrlVariable' can i make the retrofit instance be...

Can't change image source in activity via binding when I add vector drawables support When I add vector drawables support to my Android app (kotlin), I can't change the source of my images in the activity anymore. I've tested to change text in a textview as well, but that didn't work either. I also tried to change the image source and text directly in onCreate, but that didn't work either. Yes, I did add vectorDrawables.useSupportLibrary = true to my build.gradle app file. activity_main.xml MainActivity.kt package com.example.diceroller import...

Publish Kotlin MPP metadata with Gradle Kotlin DSL I have created a Kotlin MPP to share Json utilities between JVM and JS. All the code lies in the common source set and I have configured the necessary targets with their respective dependencies. Without further configuration I'm able to use the utilities from both JVM and JS but not from the common source set of another MPP, which has to do with the way Gradle handles metadata. I already found the solution (taken from <a...

Can we keep the whole stack of web pages WebView? I want to save the entire stack of pages after page clicks.I want to save the entire stack of pages after clicking through the pages, so that I can restore it later. So far, I can only restore the last one. I didn't find a function for saving in the documentation, maybe they will tell me here. Thank you

Unable to set listener during onAttachFragment, type checking fails I have an activity that initially shows a ShippingFragment screen that has a button that a user can tap to be taken to a new fragment AddressPickerFragment that allows them to pick an address from a list. When they choose their address, I want to tell ShippingFragment their selection and navigate back to ShippingFragment. I have been using Google's documentation on fragment...

hello, please can same one help me to solve this error in android studio [closed] Here is the error AAPT: error: failed writing to 'C:\Users\souleiman hassan\Desktop\CustumList\app\build\intermediates\runtime_symbol_list\debug\R.txt': The data is invalid. (13).

Kotlin - sorting string array of numbers. Numerical ordering isn't being followed I have a collection of objects that have different fields. One such field is an ID, which is a string, but is always a numerical value. I want to be able to sort these objects in different ways, such as by ID, but so far I am having an issue when trying to sort by ID. For example, I can sort the collection by ID like so: list.sortBy { it.ID }. Given a list where the IDs are like so: [ "1", "7", "1101", "12", "11" ] When I try to sort this array numerically, I get an output like so: [ "1",...

access outer scoped local variable in anonymous class having same variable name A local variable is declared in a function. Function also have an anonymous class after that variable declaration. Anonymous class has one own function with a parameter having same name as the outer scoped local variable. There's no compiler error due to same names. And I am unable to refer to the outer scoped local variable from anonymous class' function as it's referring to own variable. How to access the outer token variable in anonymous class? fun function() : String { lateinit var...

How to listen for SwitchPreferenceCompat to change I am new to using PreferenceScreen and i was wonder how i would go about settings a on click or on change listener. I have been reading trying to figure out how but all of the tutorials are in java and i cant find a way to convert them to kotlin. Thank you for your help!

Kotlin corutines MDCContext isn't restored Just playing around with coroutines and logging MDC. I have a dummy example @GetMapping("/dummy/{delay}") suspend fun dummyEndpoint(@PathVariable delay: Int): ResponseEntity { logger.debug("Outside the context. Start") withContext(MDCContext(mapOf("myKey" to "myVal"))) { logger.debug("Inside the context. Before the call") val response = WebClient.create() .get() .uri("http://postman-echo.com/delay/${delay}") .retrieve()...

GridView Problem with row Height and Scrolling - Android Kotlin I have been working on an Android Project(Kotlin) and have been facing some issues. The project overview and issues: Issue 1 : I am developing an application with a navigation drawer and fragments. In one of my fragments, I am using a gridview, which has cardview elements(Refer to the first image). I have provided the code just below the image. (In ProductFragment.kt only refer to the category_list and the corresponding code) <a href="" rel="nofollow...

Is there any library similar to ElegantNumberButton for Koltin? I want to use a counter similar to the one the library offers which would help me a lot in my current project. So if anyone knows about it i would appreciate it a lot.