How to use global value in RecyclerAdapter on Android In want use RecyclerView into my application and i want use some data into adapter of this RecyclerView. I write codes, but not found my data into ViewHolder , i can't access this data into ViewHolder! My adapter codes: class CategoryAdapter(private val catsModel: MutableList) : RecyclerView.Adapter() { private var userData = ADDRESS_LOCATION_LAT override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder { val v =...

How to recreate phone number input field in Instagram sign up screen like the gif I show below? I want to recreate phone number input field in Instagram sign up screen. The challenge I face is I can't add the country code that is clickable in the input field. Can anybody show me how to implement it?

Android Studio error with row_number() SQLite i have this query: with startDate as( select afp, max(fecha) as fecha from valcuota where afp ='MODELO' ), endDate as( select afp, date(max(fecha),'-32 days') as fecha from valcuota where afp ='MODELO' ), dates as( select * from startDate UNION select * from endDate ), fondos as( select strftime('%m-%Y',periodo) as periodo_str, fondo,periodo from ( select fondo, periodo from...

How can I enable auto restart with spring boot kotlin intellij I want to rebuild project automatically when i edit project files. So, I tried spring-boot-devtools, and Intellij seettings. I Checked this page. Hoever, I always have to restart project manually when I edit files in spring boot project. What is problem ? My build setting file is bellow. import org.jetbrains.kotlin.gradle.tasks.KotlinCompile /* auto restart */ plugins...

Edittext is showing only current date, while selecting other dates I am trying to open a date picker after click on editext, which i have achieved, But i am facing a problem that everytime i am selecting a date settext() is getting only current date. Not previous dates. i have achieved opening datepicker. also in my required format. successfully achieved check for 18 year above age etDob.setOnClickListener { val calendar = Calendar.getInstance() val year = calendar.get(Calendar.YEAR) val month = calendar.get(Calendar.MONTH)...

Spring Boot cannot connect to MySQL: The server time zone value 'Mitteleuropäische Zeit' is unrecognized I created a fresh Spring-Boot application with MySQL-Connector dependency and configured the application.properties like this and created the database schema: spring.datasource.url: jdbc:mysql://localhost:3306/test spring.datasource.username: root spring.datasource.password: root On startup I get the following exception failing to connect to the MySQL-Database: java.sql.SQLException: The server time zone value 'Mitteleurop�ische Zeit' is unrecognized or represents more than one time zone....

How to send variable from php to Android Webview? thanks in advance for taking the time to help me :) I'm developing a webview app with onesignal push notifications, and want to tag every onesignal user with my php userid to send user specific notificatiosn, but didn´t know how to get the $_SESSION["userid"] from my webview php website and use it in my Android Webview App. few dasy ago I’ve purchased a codecanyon webview framework, made with Kotlin, it is really a great framework since it helped me to turn my website into a real app (I...

ERROR: android.view.WindowManager$BadTokenException: Unable to add window -- token null is not valid; is your activity running? I am a learner and am trying to display some set data in another layout which is solely created. I know this can be done through Intent but I have been trying to use Dialog according to tutorial video. Here is the code below override fun onBindViewHolder(holder:ContactViewHolder, position:Int){ holder.name.text = data[position].name holder.phoneNumber.text = data[position].phone holder.image.setImageResource(data[position].image)...

Can't execute Retrofit sync operation by Kotlin In my android app: app/build.gradle implementation 'com.squareup.okhttp3logging interceptor3.8.0' implementation "com.squareup.retrofit2converter gson2.6.0" implementation "com.squareup.retrofit2retrofit2.6.0" In my interface: import retrofit2.Response import retrofit2.http.GET import retrofit2.http.Query interface MyRestClient { @GET("/event") suspend fun getEvents(@Query("orgn") base: Int, @Query("event") quote: Int): Response } And I want to call this method...

Can't avoid manual cast Retrofit 2.6. @GET("/event") suspend fun getEvents(@Query("orgn") base: Int, @Query("event") quote: Int): Response In service: import retrofit2.Response suspend fun getEvents( orgn: Int, event: Int, isCustomtHandle: Boolean = false ): Response { return waitressCallRestClient.getEvents(orgn, event) } and in my ViewModel: import androidx.lifecycle.MutableLiveData import androidx.lifecycle.viewModelScope import...

ViewModelProviders is outdated, what should be replaced? I use ViewModelProviders. But today, after updating the library, there were 30 messages. As I understand ViewModelProviders was no longer available and you need to replace it, I looked in the developer.google but did not understand what to replace ? My code: inline fun FragmentActivity.injectViewModel(factory: ViewModelProvider.Factory): T { return ViewModelProviders.of(this, factory)[T::class.java] } inline fun Fragment.injectViewModel(factory: ViewModelProvider.Factory): T {...

required plugin Kotlin is disabled error in android studio My app is not even using kotlin then how it is asking me for kotlin plugin? it shows this error below, 12:16 AM Plugin Error Problems found loading plugins: Plugin "Android Support" was not loaded: required plugin "Kotlin" is disabled. Plugin "WIFI ADB ULTIMATE" was not loaded: required plugin "Kotlin" is disabled. Plugin "Android Games" was not loaded: required plugin "Kotlin" is disabled....

Android Studio Kotlin - Change EditText text from a fragment I need to edit a editText which is on main_layout from a fragment instead of MainActivity(). I've tried inflating main_layout to fragment but that doesn't worked (editText doesn't change), then I've tried to create method fun changeEditText(){ editText.setText(R.string.name) } but when I call it in my Fragment using MainActivity().changeEditText() it gives me this error: java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.pm.ApplicationInfo...

Why is my firebase document being overwritten? I am fairly new to Android development and the Firestore DB, I would greatly appreciate it if someone can point me in the right direction. I am creating an app that would allow a user to sign in, and I am using their email as the primary identifier for a document in the collection of "users". I want to be able to check if the users already exists using their email and if they do then return that an account is already registered with that email. So far I managed to input user data into DB...

GoogleSignInAccount variable is null in example from Fitness API docs I'm trying to follow this document for accessing the Google Fit History API on my android phone. I've went through the required steps: 1. Generating a debug key 2. Creating a client ID from the SHA1 3. Installing Google Play Services in SDK tools (Could not find Google Repository) 4. Using example code from <a href="https://developers.google.com/fit/android/history" rel="nofollow...

Using Kotlin to develope an Eclipse plugin Is it possible to use Kotlin to develop a plugin for Eclipse? The project I'm working on uses Maven Tycho and OSGi. To prevent misunderstandings, this is not about the Kotlin Eclipse Plugin, but about developing a custom plugin using the Kotlin language. I added a dependency to the Kotlin stdlib in my pom.xml, but that doesn't seem to be enough just yet. org.jetbrains.kotlin...

connecting firebase to gallery app in android studio I'm noob in android studio and I want to make an app where I can display images with recycle view using firebase as storge for the images, if you know any good tutorials please send me a link

Kotlin common library to reuse in multiple MPP I'm setting up a Kotlin multiplatform project so I can reuse common code in multiple platforms for a single app. While building the common code for the app, I've extracted some base classes that I'd like to be able to reuse as a library in multiple multiplatform projects. I'm trying to add the library as a dependency in commonMain. There are a couple of things I don't understand. First of all: is this currently possible? If yes: The default stdlib-common is a jar file, correct? How come a...

Why does Kotlin have both Regex and Pattern classes? It seems like there's significant overlap between the behaviors of the Kotlin standard library's Regex and Pattern classes. Why the duplication?

Spring data JPA throwing java.lang.ArrayIndexOutOfBoundsException: X [Kotlin] One of the attributes of an Entity was an inline class (an experimental feature at the time of this question). And when running a spring boot application I was getting a java.lang.ArrayIndexOutOfBoundsException: 3 which made no sense to me. Turns out 3 was the number indicating the position of the attribute in my entity. @Entity @Table(name = "my_entity_table") class MyEntity( @Id @GeneratedValue(strategy = GenerationType.IDENTITY) var id: Long = 0, @Column(name =...

Get class name while in CoroutineScope Kotlin javaClass.simpleName returns StanadloneCoroutinejava instead of class name name when it is called from within coroutine scope. I want to get the upper level class name. Any ideas how can I do so?

MutableList&lt;object&gt; variable in method (Kotlin) is there any way to generate an array of multiple objects? i want something like this: doSomething(MutableList) or doSomething(MutableList) fun doSomething(list : MutableList){}

Kotlin: FragmentPagerAdapter not changing layout of ViewPager I am trying to create a tabular layout for my Android application through an adapter class. However, the layout represented in the ViewPager does not change when I click on different tabs. Below is my code: activity_main.xml: total_fragment.xml, individual_fragment.xml, usage_fragment.xml are all very basic layouts with just a TextView in them. Below is my Kotlin code...

Kotlin tail recursive function causing stack overflow I was working on this easy problem to practice basic Kotlin, and I ran into a stack overflow with the following code on the recursive return line: class Solution { fun isPalindrome(s: String): Boolean { val cleaned = s.toLowerCase().replace(Regex("[^a-z0-9]"), "") tailrec fun isPalindrome(start: Int, end: Int): Boolean { if (start >= end) return true...

How can change 2019-11-06T10:49:54.011Z -&gt; like 5minutes ago?? in kotlin How can I change 2019-11-06T104954.011Z -> like "5minutes ago"?? result.punched is appear to 2019-11-06T104954.011Z. How can I result.punch make "5minutes ago" like simple showing minute time? override fun onBindViewHolder(holder: ViewHolder, position: Int) { val result = results[position] holder.first.text =result.type if (result.type=="1") holder.first.text="Attendance" else if (result.type=="9") holder.first.text="Out" holder.second.text =...

How to design a Layout in Android Studio as shown in the picture? I've to design the given layout for my application and since I'm a beginner to Android development, I do not know which component to use. Please guide me.

My anko-sqlite database object can't be called So here's my database helper code class DatabaseHelper(ctx: Context) : ManagedSQLiteOpenHelper(ctx, "FavoriteMatch.db", null, 1){ companion object { private var instance: DatabaseHelper? = null @Synchronized fun getInstance(ctx: Context): DatabaseHelper { return instance ?: DatabaseHelper(ctx.applicationContext) } } override fun onCreate(db: SQLiteDatabase) { db.createTable(Favorite.TABLE_FAVORITE, true,...

why this code can not run ,is it a bug in Kotlin? I write a piece of code, then compile it with on error. but when I run, it throw a exception (java.lang.NoClassDefFoundError: TesKt$test$1$1). Is this a language bug? private fun test(block:()->Unit) = arrayOf(1).map { object { fun print() { println("Hello print") block() } } } fun main(args: Array) { val array = test{println("Hello main")} array[0].print() }

LiveData + ViewModel + Room: Exposing a LiveData returned by query which changes over time (Through a fts search) I have an FTS query in my DAO which I'd like to use to provide search in my App. The activity passes the query to view model each time the search text is changed. The problem is that, Room returns a LiveData every single time the query is executed while I'd like to get same LiveData object updated when I run the query. I was thinking about copying data from the LiveData which room returns into my dataSet (see the code below). Would it be a good approach? (And if yes, how would I actually...

How to prevent android from killing whole app My app has 3 activities: -PreloaderActivity -SelectorActivity(main screen) -GameActivity Preloader activity does some initialization work and fills singleton AppData structure: class AppData(val locale:String, //device locale val online: Boolean, // do we online? val onSDCard:Boolean, //do we on sdcard? val idfa:String?, //id for advertising...