Android Studio - Autocomplete in XML is not working FIXED In my case, autocomplete in XML stops working because I discovered that my dependencies have duplicates layout libraries. This is what my dependency looks like before I fixed the problem. My problem is that I do not know which libraries should I remove. So, instead of making trial and error to see which library will work. I just copy my dependency on my older android project I...

Grid reusable recycler view not displaying in view pager I have a recycler view which I am reusing along with a fragment being shared by two screens in a view pager, with a tab layout on top. The recycler view will display a vertical list on the first tab, and a grid on the second tab. The list is rendered fine for the first tab and for the second tab, the ImageViewHolder is instantiated and its data is set correctly, it is just a gallery of images but it is not displayed on the screen. This is what appears instead <a...

Android/Kotlin - GET request - return response headers and not follow redirect I'm making a GET request in Android Kotlin. The code below is a basic starting point. The response should return a "302 Found" redirect, and Location in the response headers. import com.android.volley.Request import com.android.volley.Response import com.android.volley.toolbox.StringRequest import com.android.volley.toolbox.Volley I have the following called from my MainActivity: // Basic URL GET request. // TODO: More efficient click-tracking with HTTP GET to obtain the "302"...

Android Studio 4.1 Kotlin widget-ID not recognized in AminActivity.kt I try to create a new project in Android Studio (AS) 4.1 with Kotlin. I use "empty activity" and create project "MyTest" . AS creates activity_main.xml with unnamed TextView "Hello World". I give the id the name myText. The created MainActivity.kt is standard and looks like this package com.example.mytest import androidx.appcompat.app.AppCompatActivity import android.os.Bundle class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) {...

AWS Amplify - Android - Translate text in an unknown language to English In my Android application I am using OCR. I would like to translate the text from the image to English. The language of the text is unknown. I am using AWS services together with Amplify, so I would like to use Predictions module to translate the text. In Amazon Translate FAQ it is written that Amazon Translate has the automatic source language detection: If the source language is unknown, Amazon Translate will...

custom login using realtime database in firebase I'm trying to built an android application to login with just name and password not email and that's by using the realtime database on firebase ...is their any query that's check equality of the given name and password .

Android Room Database Create Entity Object without Id My entity class: @Entity(tableName = "student") data class Student( @PrimaryKey(autoGenerate = true) val id: Long, val name: String, val age: Int, val gpa: Double, val isSingle: Boolean ) The problem is, since the id is auto-generated by the Room database - means no matther what I put for the id into the constructor it will be overridden anyway, and because it is one of the parameter in the constructor, I have to give the id every time like this: val student =...

How can I get property reference from an class reference or generic type? I'm trying to replace assign() method with a niceAssign(): class Builder(val kClass: KClass) { fun assign(prop: KProperty1, value: K): Builder = TODO("doing other stuff here") fun niceAssign(call: KClass.() -> Pair) : Builder { val (prop, value) = call(kClass) return assign(prop, value) } } val builder = Builder(Data::class) builder.assign(Data::someProperty, "some value") // (1) builder.niceAssign { ::someProperty to...

Kotlin - Handling Names From EditText I have two EditTexts which take in a input type of android:inputType="textPersonName|textCapWords" The user will presumably input their name ("John Doe"), and this will be saved unto Firestore. I believe that textPersonName|textCapWords will handle capitalizing the first characters in their names, however, I want to handle a case in which a user puts one too many empty spaces between their name ("John Doe"). I've thought of doing something like this: val splitCMName = caseManager.split("...

How can i open sub-library's activity from Parent Project i am facing some android sub-module or aar lib problem. I have one parent project and I want to add a different project into the my parent project (containing DI, network, activity, fragment). I think I have added successfully. My workspace looks like below screen shoot. i also added in app gradle implementation project(":GaleriDemo") and added in settings.gradle <a href=""...

Kotlin Android Project Contribution This isn't a technical question but I couldn't think of a better place to ask. For my entire career, I have developed proprietary enterprise applications as the sole Android Developer. Lacking a portfolio of apps, or being able to demonstrate a history of working with other developers on a single code base has made securing a new job much more challenging. I am looking for projects to contribute to but have found very little luck, just searching on Github. Does anyone know of any projects...

Connect to custom bitcoin node with bitcoinJ I have full bitcoin testnet core on my server and I am accessing it over dyndns address. I am creating Android bitcoin wallet bitcoinJ and now I am stuck with connecting to my server and using it for making transactions. Is there a way to use bitcoinJ with custom tesnet server or I am at wrong path. Can't find any example online, they are all using TestNet3Params.get().

ElasticSearch's searchAsync seems a blocking call I'm trying to use ElasticSearch's searchAsync method in my kotlin repo. I got two big problems and the first one was, I've no idea why ES's searchAsync seems blocking the thread for a long time. The code was simple esClint.searchAsync(request, RequestOptions.DEFAULT, SearchListener()) While the SearchListener was written in blew: class SearchListener() : ActionListener { override fun onFailure(e: Exception?) { println(e) } override fun onResponse(response: T) {...

corner rounder videoview kotlin hi i'm new to android and i don't know how i could make my video look like this. Could you guide me on how to make the video like the image? Thanks for the help I have echo a shape and I use it from background in my xml but it doesn't work this is in me shape but the result is the following

How to add python console in an android app? how can we create a console for executing python script inside an android application? The console should take the prewritten code and execute it and give the results as output.

How to use Room Relation annotations to JOIN several objects at once? Recently learned about such a thing as Relation annotation in Room, but immediately came to a dead end from misunderstanding. I have the following database model: DatabaseCategory @Entity(tableName = "categories") data class DatabaseCategory( @PrimaryKey val id: Int = 0, val name: String ="", val description: String = "", @ColumnInfo(name = "picture_url") val pictureUrl: String = "", ) DatabaseProduct @Entity(tableName = "products", foreignKeys = [...

Kotlin immutable data variable a mutable data variable age (integer) Kotlin question Create a class named Person in Kotlin that has an immutable data variable name (string) and a mutable data variable age (integer). The class should contain the following: a) a primary constructor. b) an initializer block that prints the message "An instance has been created". c) a method display that prints the name and age of the person.

Erro ao consumir api do google books Boa noite, estou com uma dúvida de como consumir API com Kotlin, estou tentando consumir a api do google books, mas quando eu abro o app ele escreve "null" fun apiTrazerTodos(){ val callLivros = criarRequisicoes().getLivros(); callLivros.enqueue(object : Callback { override fun onResponse(call: Call, response: Response) { val novoTv = TextView(baseContext) novoTv.text = "Título: - ${response.body()} " novoTv.setTextSize(TypedValue.COMPLEX_UNIT_SP, 15f)...

Can't get spring cors working with angular and kotlin I can't seem to get cors to work with sping/kotlin and Angular 10. I have tried just about everything I can find online. I have added the cors annotations to the controller, api and globally but none of them work. Any ideas? @Configuration @EnableWebMvc class WebConfig : WebMvcConfigurationSupport() { override fun addCorsMappings(registry: CorsRegistry) { println("HHHHHHH") registry.addMapping("/**") } } @CrossOrigin(origins = ["http://localhost:4200"])...

How do i impliment my XML layout file into a viewmodel() in android studio 4.1 with Kotlin i'm a relative beginner to android programming and i want to have it so my fragments display the layout files which are assigned to them through a viewmodel. I'll be providing only one fragment and viewmodel pair as the 3 others which i have are practically the same except some names and text is swapped arround Here's my TimetableFragment.kt import android.os.Bundle import android.view.LayoutInflater import android.view.View import android.view.ViewGroup import android.widget.TextView...

kotlin:: BeanCreationException: I don't no how to define userRepo DataTable.kt class DataTable(private val param: MultiValueMap, private val searchField: Array) { @Autowired private lateinit var userService: UserService private fun getAllCnt(): Int { return userService.countAll() } UserRepo.kt @Repository interface UserRepo: JpaRepository { @Query(value="SELECT COUNT(*) FROM users", nativeQuery=true) fun countAll(): Int } UserService.kt @Service class UserService { @Autowired private lateinit var userRepo:...

How do I use an enum within a kotlin data class I have this model data class HourlyModel( val time: String, @DrawableRes val image: Int, val temp: Double ) I realized that the server will provide me with weather codes which translate to the icon that will be displayed. I think if I pull the @DrawableRes into an enum, it maybe better because I have a model for Today's Weather and WeeklyWeather forecasts. All 3 models will be using the same weather codes. I am new to Kotlin but I think if I have an enum class, I should be able...

Can't Access XML form Main Activity in Android Studio I cannot access the elements in my XML form the main activity, writing the element id throws errors as if the element is not even there. Basically Main can't see what is written in XML file, even though they are linked.

What's the correct way to iterate through properties of a singleton in Kotlin? As the title suggests, I wanted to iterate through properties of a singleton object. I tried using the kotlin-reflect as there was no other way I found currently. object Test { const val a = "String" const val b = "Another String" } Test::class.declaredMemberProperties.forEach { println("${it.name}: ${it.get(Test)}") } But unfortunately this results in the following exception: Exception in thread "main" java.lang.IllegalArgumentException: Callable expects 0 arguments, but 1 were...

Android - Is there any way to get mobile number and sent message from delivery report programatically? If No then what is the other way? I have used a broadcast receiver for the delivery status. onReceive() method is working properly as messages get delivered. But now I want the mobile number and message for which this delivered status got. class DeliverReceiver : BroadcastReceiver() { override fun onReceive(context: Context, intent: Intent) { when (resultCode) { Activity.RESULT_OK -> { Toast.makeText(context, "SMS Delivered", Toast.LENGTH_SHORT).show() deleteSMS(context) }...

Error Room Database: Cannot figure out how to save this field into database. You can consider adding a type converter for it I have a problem when I want to record into Room database my JSON. My data class is: data class CurrentWeatherEntry( @SerializedName("temperature")// val temperature: Int, @SerializedName("weather_code") val weatherCode: Int, @SerializedName("weather_icons") val weatherIcons: List, ) { @PrimaryKey(autoGenerate = false) var id : Int = CURRENT_WEATHER_ID } I get error: Cannot figure out how to save this field into database. You can consider adding a type converter for it. private...

Using getDefaultSharedPreferences, having issues with Context I am trying to use getDefaultSharedPreferences as I only have 3-4 bits of bool data to save (first ever app), according to the docs it needs... "getDefaultSharedPreferencesName (Context context)" So delving into the docs on context I reasoned that all I need to to give it was Context as this will be the context for my fragment, so I tried val sharedPref: SharedPreferences = getDefaultSharedPreferences(Context) However I get the error "Classifier 'Context' does not have a companion object,...

By delegate data class on observeAsState I want to use the state by delegate syntax on observeAsState, but it report a error show there is no getValue method in data class. @Composable fun ComposeScreen( ... ) { val item: Item by viewModel.item.observeAsState(Item) // there is an error in

(Item)

, it seems not delegate directly using the model of data class. } // viewModel val item = itemRepository.item // item is a LiveData // model data class Item( ... )

Android Bundle usage Is it possible to use Android Bundle to create and putString() in Activity then getString() in Service? If not what can i do? Example MainActivity.kt val bundle = Bundle() bundle.putString("MyString", "Message") val mesg = Message.obtain(null, MyService.SEND_MESSAGE_FLAG) mesg.obj = bundle try { myService!!.send(mesg) } catch (e: RemoteException) { } Service override fun handleMessage(msg: Message) { when...

Why do I get this error E/RecyclerView: No adapter attached; skipping layout? I know this question has already been asked but I tried all the solutions they suggested and nothing worked. I create the adapter in the main thread, I add him in the onCreate function, and still doesn't work. Before Closing my question please look at my code and tell me what am I doing wrong. class PostsActivity : AppCompatActivity() { var recyclerView: RecyclerView? = null var postObjList : ArrayList? = null var postContentList : ArrayList? = null var viewModel :...