How to save data in Samsung cloud in an Android application? I want to save data in Samsung Cloud so that I will have data when I login in another android device. How can I do that? My app is in Kotlin. In fact, how can I save data in server?

How to Convert listView to RecyclerView in Kotlin I have a problem with use listView,because i display many Image in listview (about memory) I need to convert listview to recyclerview Problem: When I display the images, on my phone, using last view, you do a lot of memory blocking, And it caused the application to stop, so I want to convert List View to RecycleView. MainActivity: package com.masreta87.hussain import android.app.Activity import android.content.pm.PackageManager import android.graphics.Bitmap import...

Type mismatch when idea calls Scala varargs function in a Kotlin project let's say I have a function foo() in a scala library called @varargs def foo(first: Kitty, alternatives: Kitty*): Kitty= KittyAdapter { import kitty.overlord.Rules._ (first +: alternatives).map(.delegate).reduce( ~ _) } and when I call this function in a kotlin project like this fun bar():Kitty = foo( scab, sbab, blab ) the idea compiles fine but the intellisense shows Type mismatch required: Seq!, found: Kitty! and the whole piece of code goes red.

MockK: capture() intercepts calls that do not match the full list of parameters in the enclosing verify() In the below example I would expect capture() to engage only when the full list of parameters to verify() matches, however the opposite seems to be true. Is this behavior intended? interface ExternalService { fun doIt(doCapture: Boolean, captureCandidate: String) } class VerifyCaptureDemo { val externalService: ExternalService = mockk(relaxed = true) @Test fun demo() { externalService.doIt(false, "noCaptureExpected") externalService.doIt(true,...

Kotlin Gradle Plugin: What's the difference between apply plugin and plugins.apply in subprojects after kotlin gradle plugin 1.3.20? My project has multiple modules and my root build.gradle has the configuration like below: subprojects { afterEvaluate { if ((plugins.hasPlugin("kotlin-android") || plugins.hasPlugin("kotlin"))) { // gsonkeepdefault apply plugin: 'kotlin-kapt' dependencies { kapt project(':gsonkeepdefault-processor') kaptTest project(':gsonkeepdefault-processor') } } } } This configuration works fine in...

Check if passed parameter is a type of class I want to call the following function: fun isCurrentActivity( t: Class): Boolean { return (currentActivity != null) && (currentActivity is t) } if (isCurrentActivity(MainActivity::class.java)) { } But t is an unresolved reference. How can I fix that? I can't use an inline reified function because the function needs to be publicly available.

Android studio layout preview does not have my current them I have a test multi-module project and some modules does not see my application theme. In more detail, the modules are the following: app, common, home & details. The app module contains an activity and the navigation, the common contains strings & the style and home/detail contain a dummy fragment. All fragments implement the common module which contains my style. // Modules implementation project(path: ':navigation') implementation project(path: ':common') So when I go to the activity's...

How do you resize a bitmap image in layer-list on Android? I am following this procedure to create a splash screen -> https://medium.com/@shishirthedev/the-right-way-to-implement-a-splash-screen-in-android-acae0e52949a It works fine, but the bitmap is quite big, I would like to resize it smaller and keep the high definition. This here below is the result, I would just like to have a centred small app logo in...

How to filter a object list inside of a object list by name property in kotlin I'm trying to do a task that is struggled me. The question is How can I achieve the goal to filter a list of list in kotlin. I was looking here with filter and map but was impossible to can do it. I have this data class. data class CategoryModel( val collections: List, val id: Int, val name: String ) data class CollectionModel( val id: Int, val image: String, val name: String ) That I want to do is get a list of CategoryModel that have only the collectionModel...

How to initialize lateinit variable in kotlin? I want get "id" from data class cartDocs in this Activity. I am trying to run this code, but got error like this: kotlin.UninitializedPropertyAccessException: lateinit property cart has not been initialized I also tried to remove "?" in data class. but still same problem. How can I solve this problem? class CartViewActivity : AppCompatActivity(), SwipeRefreshLayout.OnRefreshListener { lateinit var cart: cartDocs @RequiresApi(Build.VERSION_CODES.N) override fun...

How to escape * multiply symbol in bash after compiling a kotlin program to java jar that takes arv[0] and prints it in the console? My bash version $ bash --version GNU bash, version 4.4.23(1)-release (x86_64-pc-msys) What I tried $ echo * chap_six.kt clean.sh hello.jar hello.kt README.md start.sh $ echo \* * My simple print program // hello.kt fun main(args: Array) { println(args[0]) } After compiling my simple print program kotlinc hello.kt -include-runtime -d hello.jar Here's what I get $ java -jar hello.jar * chap_six.kt $ java -jar hello.jar \* .git

how to use kotlin program in github for android studio there is a praytime calculation library in GitHub: https://github.com/ahmedeltaher/Prayer-Times-Azan-Android after set proper changes in build.gradle file to implement library,I want to use below simple code (kotlin language) based on github documentation in android studio: val today = SimpleDate(GregorianCalendar()) val location = Location(30.045411, 31.236735, 2.0, 0) val azan =...

MessageQueue-JNI: java.lang.SecurityException: Permission Denial: null asks to run as user 8 but is calling from user 0; I got crash when i click on edittext for enter value. I have seen this Solution1 and Solution2 and Apply both but not working for me. this requires android.permission.INTERACT_ACROSS_USERS_FULL or android.permission.INTERACT_ACROSS_USERS. I apply...

Kotlin - cast to Class<T> or to KClass<T> In Kotlin I can cast Any to another type like so val obj: Any = 123 val num: Int = obj as Int In my case I want to be able to either cast to Class or KClass, something like... val obj: Any = 123 val kotlinClass = Int::class val javaClass = Int::class.java val num : Int = obj.castTo(kotlinClass) val num2: Int = obj.castTo(javaClass) How exactly can this be achieved?

Firebase Cloud Firestore: Sealed classes in custom objects in Kotlin Android I'm using implementation 'com.google.firebasefirebase firestore21.3.1' for testing the Firestore-Database SDK with Kotlin in version 1.3.50. For read/write tests I created a simple data class: data class Location( val uuid: String? = null, val name: String? = null ) which is working fine and smooth, like expected. But going a little bit deeper to extend the data class with Kotlin's sealed classes leads to problems in serialization: data class Location( val uuid:...

Lottie Android - How to play from position to position and repeat by range? I found this Lottie Play/Pause button, but I don't know how to show Play state when my audio player paused, show Pause state and repeat with equalizer animation in it (see the lottie preview) when the player is playing. I've read the document but no example for this case. I don't have any knowledge about After Effect to control the animation too.

How to make CameraX Preview freeze when take a photo? I have a flow with my custom CameraX like this: Open camera preview (live) Click button to take a photo Have a process when clicking that button (convert the path to bitmap, rotated the image, cropping the image automatically, save into device) After running all the process and successfully, send the image to other Fragment and display it into a glide The question is when running all the process (in step 3) have a delayed 2 seconds and the camera preview still live (not freeze or lock). How...

Make an app to Launch call on more than 3 mobiles devices right now I am thinking seriously about making an mobile app which can trigger call on more than three devices(what i do with my phone i want to do that on a distant phone device mzke call). I don't know where to start.

Keep session between 2 retrofit instances In my application, I would like to abstract requests to my API. However, to access my API, the user needs to log in and the server sends back a cookie in the form of a JSESSIONID. So I have a first Retrofit instance created for this using an interface containing the methods for the user to log in : interface MyService { @POST("api/login" ) fun login(@Header("cred")id: String): Completable companion object { operator fun invoke(): MyService{ val interceptor =...

Jackson get nested json with JsonRootName Can't get nested element from json. I have structure: { "test": { "value": { "a":"a", "b":"b" }, "c": "c" } I need to deserealize json with Jackson and POJOs classes. data class someDto( @JsonProperty("test") @JsonUnwrapped val test: TestDto, @JsonProperty("c") val c: String, ) data class TestDto( @JsonProperty("a") val a: String, @JsonProperty("b") val b: String ) Configuration for...

Kotlin - Issue in getting location from Network provider I must have to take location from the user device in my Android application. I have done something as below : First, I have checked for the Runtime Location Permissions. Taken successfully. Second, Checking that GPS is enabled or not and if GPS PROVIDER is working fine, am able to fetch latitude and longitude from the GPS Provider. Third, If GPS is off, am trying to get location from the NETWORK Provider. But, in this case sometimes am not able fetch location successfully. So, I must...

How to use the object value in another class in Kotlin I want to use the below object in another class: private var mSingleAccountApp: ISingleAccountPublicClientApplication? = null PublicClientApplication.createSingleAccountPublicClientApplication( this, R.raw.auth_config_single_account, object : IPublicClientApplication.ISingleAccountApplicationCreatedListener { override fun onCreated(application: ISingleAccountPublicClientApplication) { mSingleAccountApp = application...

Android Talkback accessibility events Is there a way to programatically set to read all views on talkback when certain action is fired (ex. button click) like it is when you tap with 3 fingers at once? Thanks in advance.

answer Access same data from 1 android app to another app I have 2 apps like facebook and messanger. how i can get the first apps login detail in second app. is there any intent or something to acheive this.

Swagger-UI and Ktor how to import swagger.json or .yaml file and start Swagger-UI? I have a problem, I have already generated OpenApi Swagger files (swagger.json and swagger.yaml) Is it possible somehow in Ktor (kotlin) import this files and start swagger-ui server on specific route ? I have visited ktor-swagger project but could get how just to add json file to display swagger-ui. Any suggestions ?

Unable to update (Room)database field I'm currently unable to update an existing item in the Room database of my app. I've tried to implement this tutorial. By observing the 'Pack' I can see that the values are changed correctly but when leaving and returning to the Activity they have reverted back. Overview of what's happening Navigate to PackInfoActivity where selected pack value is set initially and...

Translate android app with kotlin from English to Arabic In my android app with Kotlin minSdkVersion 26 and targetSdkVersion 28 , I want to translate all my app from english to arabic language. In AndroidManifest.xml I add android:supportsRtl="true" I use in my app, a navigation bottom, that containt two items one for home and another for account user. In the account fragment, I just add a Text which when I click on, the language change from English to Arabic or vice versa. I create a "strings.xml" in a value folder that contains all text fields in...

Kotlin - MediaPlayer is finalised when I make separate API call with a lot of data? I have a MediaPlayer running as part of an object. It continues playing when i change fragments and but when I change to a fragment that has to load a recyclerView with a lot of data in it being pulled from an API and start to scroll, the MediaPlayer finalises and stops playing. It doesn't do it on fragments with smaller amounts of data in. Any ideas why this might be happening? object AudioService { fun playRadio(view: View, url: String) = try { var mp: MediaPlayer? = null...

Periodic WorkManager that creates a request I want to use WorkManager so i can run a proccess every 15 minutes periodically for ever. The proccess is the following. I want to start a request called Push. The server will not respond to me unless he has something to give me. In that case i will do another request called Sync that does its own job and start the Push again. In case of TimeoutException i want to start the Push again. All this proccess will be held inside a WorkManager doWork method, so every time the workmanager...

Cast Array<String?> to Array<String> in Kotlin? I have an array of nulls that I initialize with Strings. Then I have to pass it to a function that requires Array instead of Array. How can I go around this issue? val list_names = arrayOfNulls(plant_list.size) for(item in plant_list){ list_names.plus(item.name) } val myListAdapter = MyListAdapter(activity!!,list_names,list_types,list_images) // list_names must be Array I also want to mention that changing it in the Adapter would only complicate things, so I would like to do it all from...