store Calendar state to SQLite Im using Material CalendarView by(?) prolificinteractive and I'm using some custom Decorator to denote 'O', 'X' to some date(which is dynamic by setOnDateChangedListener) by using addDecorator. What i'm trying to do is i want to store the Calendar state when app is over and when turned on, Calendar state is same as before. 1)Is there any solution to store calendar state to SQLite? or 2) do I have to save all denoted dates in to array and denote again when Calendar is open? In Second way i...

Android callback for a coroutine flow is not fired I have a service where the data is backed by a MutableLiveData and exposed to outside through a flow. @ApplicationScope @Singleton class UserProfileServiceImpl : UserProfileService { private var userLiveData: MutableLiveData = MutableLiveData() override fun currentUser() = userLiveData.value override fun updatePoints(points: Int) { val user = currentUser() ?: throw IllegalAccessException("user is not authenticated") user.points = points...

In correct query string append to retrofit request in android I am trying to pass "test+data" to Retrofit api call but during api request process it is processing as "test%2Bdata". Due to this my API request is failing. How to pass exact text to retrofit call? i am trying with below code. build.gradle: buildConfigField("String", "api_type", "\"test+data\"") ApiService: @GET("/?format=json") fun getAllData(@Query("q") q: String) : Call

Android , convert Bitmap to ZPL Right now I'm developing Android app that printing using label printer (Honeywell PC43T) by sending ZPL code as a command. I'm be able to print I am able to create zpl code for text data but I am having to problem to create zpl code for image. Anyone has an experience on this?

how to pass parameter in java class like kotlin I'm trying to implement unit test in old java project but trying to learn it from Kotlin course cause most of android tutorials now are in Kotlin, the course use Kotlin class this way how I do the same with java @Module open class ApiModule { @Provides fun provideApi(): Api { return Retrofit.Builder() .baseUrl(Constants.BASE_URL) .addConverterFactory(GsonConverterFactory.create()) .addCallAdapterFactory(RxJava2CallAdapterFactory.create())...

Styling google maps my location button in Android So I am trying to use a floating action button instead of the default google map's my location button. Any ideas of how can I do that? I've tried many ways, I tried to call the MyLocationButtonClick() event inside my FloatingActionButton with either the map?.uiSettings?.isMyLocationButtonEnabled true or false but it did not zoom the user position. Thanks for your time!

How to prevent android inputmethod change on every text changing In my android app (linear equations solver) I need soft keyboard with special symbols input method. Default input types like numeric, decimal or signed numeric don't satisfy because I also need the possibility to input symbols + - = . and letter 'x'. I set the digits property with all valid characters, text for inputtype. But on each key input I also invoke TextWatcher for the purpose of text formatting. And every time when I change page with symbols on softkeyboard it returns to page of...

asp.net core api get null value from kotlin I created an API with ASP.net Core that works with postman well. But when I pass data with Kotlin and Retrofit, API get null values. All data send to server via Kotlin fine. All models in Kotlin and in ASP.net Core are same. This is Retrofit Interface Code: @FormUrlEncoded @POST("authentication/login") fun login( @Field("username") username:String, @Field("password") password:String ):Call This my Kotlin code: loginViewModel.login(username,password).observe(viewLifecycleOwner,{...

Android retrofit added 2 Interceptor with different purposes So I have an Interceptor for adding token into service header for everytime i made a request : AuthInterceptor.kt class AuthInterceptor(context: Context) : Interceptor { private val loginPreference = LoginStatusPreference(context) override fun intercept(chain: Interceptor.Chain): Response { val requestBuilder = chain.request().newBuilder() val currentToken = loginPreference.getLoginToken() currentToken?.let {...

Reading existing database from room and ignore some fields I want to join a second non room database which should be possible so far I understand this. I want to use this database read only. I created already the data classes and the dao class even the right indexes etc. Just it keeps crashing with the notice that the rows do not match ("Pre-packaged database has an invalid schema"), the issue there is the BOOLEAN datatype which room does not support. That is fine since I don't care about that column. How can I tell room to ignore that fields since I...

Kotlinx serializer ignores my data class fields that have a default value When I used only secondary constructor in data class(in the body of data class), I did't have that problem. Then I moved everything in primary constructor and for now, serializer just ignores fields, when they are the same as they were while initializing. So, what to do?

What is the difference between ContentProvider and FileProvider in Android What is the difference between ContentProvider and FileProvider?. I want received URI image when use camera .

How to convert jsonstring to array android? [duplicate] This string is the answer I get from the server and I want to convert it to an array. I searched a lot but I did not find any results if you can help me [{ "coin": "BTC", "name": "BEP2", "network": "BNB" }]

How to add where condition into relatation model? Hy I have a problem, with my query, I would like to add where contidion, but I don't know where and how. This is the first relation model: class FreightTaskBrowserModel( @Embedded val freightTask: FreightTask, @Relation( parentColumn = "oid", entityColumn = "freight_task_id", entity = FreightTaskRow::class ) val freightTaskRowWithStatus: List ) {} And inside this, there is another: class FreightTaskRowWithStatus( @Embedded var freightTaskRow:...

java.lang.NullPointerException: BitmapFactory.decodeFile(path) must not be null so I encounter the message java.lang.NullPointerException: BitmapFactory.decodeFile(path) must not be null. Is there a possible way to bypass this in order to make the BitmapFactory work as a non-null sequence ? Also I wouldn't deny someone to make a new code compare to mine, but also I am struggling to detect the new image and then open it automatically in the ImageView, instead of manually going to the gallery and selecting it. Thank you in advance. Watermark Method: fun waterMark(src:...

Android recyclerView and data binding I make an Android application in Kotlin, and i want to get some information from the webserver and put in a recycler view using data binding. I use repository pattern, so each time i make a get request, i save the information in room database and get data from it with live data. For some reason my ryclerview show nothing, and i get no errors. The request work and i get the data but the recyclerview not working. My ViewModel: class HomeViewModel(application: Application) : ViewModel() {...

Extend data class sealed class kotlin I have a sealed class that has different subtypes extending from it. When I try to use a when clause to filter out a subtype I keep getting unresolved reference "name" sealed class Fruit(val name: String) { object APPLE : Fruit(“apple”) data class BANANA(val isFruit: Boolean) : Fruit(“banana”) } internal object Random { fun build(name: String): FruitNinja{ when(name) { Fruit.APPLE.name -> {
 return AppleFruitNinja() } // keep getting...

Warning: NavController.setNavigatorProvider can only be called from within the same library group (groupId=androidx.navigation) I have created a new project and met with this warning while setting up bottom-tab navigation. Gradle info AndroidStudio: 4.1.2 compileSdkVersion: 29 Navigation dependencies: implementation "androidx.navigationnavigation fragment ktx2.3.1" implementation "androidx.navigationnavigation ui ktx2.3.1" My Code: private fun setupBottomNavigationBar() { val navController = findNavController(R.id.nav_host_fragment) supportFragmentManager.findFragmentById(R.id.nav_host_fragment)?.let {...

Send file type in body using Volley I unable sending POST request using Volley, because one of the params is file type. API Request looks like this: Im getting 422 error. I use this article to get this done. my code: fun makeFileRequest(url: String, byteArrayFromImageView:...

how to use multi Item Type in JetPack-Paging3? I want to use Multi Type in Paging3,but PagingDataAdapter only suport one generic paradigm. How to do it?Maybe there is some demo? And I want to use it with Room. Like in a RecylerView , there are two kinds of item.One is text content,another is image. So I want to know how to do it?

I have spinner which displays items from XML string. I want to fetch items from room database using kotlin? I have already table nammed class, where i have stored class with Id. I want to add students to student table while selecting class from spinner. The spinner should add the classes which I have already added. Code for viewModel .. @InternalCoroutinesApi class ClasswiseViewModel(application: Application): AndroidViewModel(application) { val readAllData: LiveData private val repository: ClasswiseRepository init { val classsDao = Userdatabase.getDatabase(...

Application last update rejected by play store because of vulnerable intent redirection Application last updation play console rejected, they are mention in the mail also the same issue, but i don't understand. There is no customer support also. please help me. i ma attaching one screen shot mail which play store send to me.[![please check the screenshot image] This is my build.gradle file dependencies { implementation fileTree(dir: "libs", include: ["*.jar"]) implementation "org.jetbrains.kotlinkotlin stdlib$kotlin_version"...

prevent google credentials save in android I am using Firebase Google Authentication services. Authentication is working fine, But the problem is that when i sign In with google auth, credentials get saved. So after every logout i can not be able to choose an email for login. It directly login me into the app. So it become a problem to me when i want to login with another gmail account. Code to achieve the credentials page. google_sign_in_btn.setOnClickListener { signIn() } ... private fun signIn() { val...

inferred type is Double but Int was expected I am trying to implement a simple Math library in Kotlin. My task is to create two abs functions to calculate the absolute value of given number. object Math { fun abs(b:Int):Int { return when{ b>0 -> b else -> -b }} fun abs(b:Double): Double { return when{ b>0.0 -> b else -> -b }}} fun main(args: Array) { println (Math.abs(5)) println(Math.abs(-5.0)) println(Math.abs(-0.0)) } Then...

java.lang.IllegalStateException: WorkManager is already initialized. Even though work manager is not initialized I am trying to do custom work manager initialisation. I do not want the work manager to get initialised at the beginning, I want to initialise only if login is success. But I always get the below exception even though work manager is not initialised: java.lang.IllegalStateException: WorkManager is already initialized. Did you try to initialize it manually without disabling WorkManagerInitializer? See WorkManager#initialize(Context, Configuration) or the class level Javadoc for more...

kotlinOptions.jvmTarget conflict with Gradle variants I used Kotlin Gradle plugin in my project and I set JVM target to 1.8. However, I found the published module -- the gradle variants don't respect that. apply plugin: "kotlin" compileKotlin { kotlinOptions.jvmTarget = JavaVersion.VERSION_1_8 } Here I want to set the target Java version as 1.8. And I checked the bytecodes of the build classes and it is Java 1.8. gradle outgoingVariants Attributes - org.gradle.category = library - org.gradle.dependency.bundling...

How to append a parametermap to a Post request in Android Studio I'm currently working on an Android Studio application that has to connect with a Spring Boot server (both are written in Kotlin). I'm currently at a point where I need to initialize the User after he has chosen his profile picture. Unfortunately I continuously get the following error thrown from the SecurityFilter class whenever I attempt to do that from my Android Studio class: Parameter specified as non-null is null: method User., parameter username I think the error is due to the fact...

Make a non-activity_main xml file responsive in Android I have an xml file name "element.xml" containing a CardView which again contains an ImageView and a TextView. I populate my RecycleView, which is in activity_main.xml, with this CardView. The problem is that the cards look too different in size in different screens (the image height mainly). How can I make it responsive? I know that for activity_main.xml you can make several files like activity_main.xml (hdpi) to make it responsive, but I'm not sure how to do that in this case.

Best practice: MongoDB Panache entity one-to-many relationship handling in Quarkus? The Quarkus Guide on using MongoDB with Panache does unfortunately not mention what is considered the best practice dealing with one-to-many relations of entities. Note: I would like to model the dependent sub-document, but as an entity on its own. The MongoDB site demonstrates this pattern in: <a href="https://docs.mongodb.com/manual/tutorial/model-referenced-one-to-many-relationships-between-documents/"...

Add task with CustomDialog in kotlin I am build a todoapp that adds tasks on an activity after text is entered in a dialog. There wasn't any major issues. I based myself on this tutorial: https://medium.com/@tanunprabhu95/to-do-list-application-using-kotlin-using-android-studio-546e74ac75aa I tested the code in android studio and it works incredibly well ( they don't use a dialog). So, i...