Recommendation how to pass message from Python to Kotlin I have an application written on Python runs on Windows which generates data. I have also designed front end UI on Kotlin which is supposed to run to windows. How can i pass message or notification from Python application to Kotlin, both running on the same machine? One way i could think is socket. Are there other better ways to do it keep other things simple?

Call Kotlin transpired Javascript function in plain Javascript I have a Kotlin file say Sample.Kt which have just one function which gets the string as an input and do a rest call and return a response in array. I would like to call this method in my html file inside script tag. Kotlin Code: import kotlin.browser.window fun main(boundaries: String) { console.log("Kotlin File") var smf: dynamic = js("({})") smf.method = "GET" smf.mode = "cors" smf.cache = "default" var url =...

return@method_name in Kotlin I am learning one project for RxJAVA in that there is one method. In which, I think, the creator had passed lambda. private fun doSomeWork() { getObservable() .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .map { apiUsers -> return@map Utils.convertApiUserListToUserList(apiUsers) } .subscribe(getObserver()) }...

How Do I get all user Ids from shaver1 then get info of each user from musers mDatabaseReference = mDatabase!!.getReference().child("Jobs").child(input_job.selectedItem.toString()) mDatabaseReference!!.addChildEventListener(object:ChildEventListener { override fun onCancelled(p0: DatabaseError) { TODO("not implemented") //To change body of created functions use File | Settings | File Templates. } override fun onChildMoved(p0: DataSnapshot, p1: String?)...

How to bind Pane with another Pane in JavaFX I'm finding the way that how to bind the size of a pane with the outer pane. I could bind the size ofRectangle with Pane, But couldn't bind an inner pane (Red dotted rectangle) with outer pane (Blue dotted rectangle) Why I couldn't do it It seems to be that Pane does not provide bind method for widthProperty Objects At least, bind width with TextArea of inner Pane with outer Pane I'll make many new tabs, therefore, I prefer to bind inner Pane with outer Pane rather than bind TextArea...

How can I use a back arrow in my actionbar of my tablayout? I want to create a back-arrow in my actionbar in Main3activity. In my drawermenu I use fragments, but I can't fix it to make a fragment with tablayout so i choose to use an activity and that works for me. But when I'm on the Main3activity and I want to go back to MainActivity I want to use an arrow in my actionbar of something else. Can someone help me please? First I want to try it with fragments, but it was not work for me to at tablayout at a fragment. So I choose activity....

Shall I use @DatabaseView in Room with LiveData? Its working if run query through main thread. If I try to get DatabaseView with Livedata POJO, Its throwing error java.lang.IllegalArgumentException: Cannot add the same observer with different lifecycles at androidx.lifecycle.LiveData.observe(LiveData.java:197) at MyFragment.onCreateView(MyFragment.kt:45) at androidx.fragment.app.Fragment.performCreateView(Fragment.java:2439) at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManager.java:1460) at...

Kotlin equivalent of Scala ListBuffer I'm new in Kotlin and trying to convert an app written in Scala to Kotlin. In Scala there is the ListBuffer from scala.collection.mutable.ListBuffer. Is there an equivalent in Kotlin? I tried importing com.sun.tools.javac.util.ListBuffer but I would get an error when I try to compile: Kotlin: Symbol is declared in module 'jdk.compiler' which does not export package 'com.sun.tools.javac.util'?

Getting string as ByteArray from phone data and changin it again to String I'm working with data persistence in android and I'm trying to do a simple app where I save strings(like an agenda) and u can save them even if you close the app. It is already working but the problem I have is translating back the ByteArray to String: Saving the data: fun saveShopData(newItemString,context Context){ var file = context.openFileOutput("shoppingList",Context.MODE_PRIVATE) file.write(newItem.toByteArray(charset = Charsets.US_ASCII)) file.close() } Writing...

Android - Sideloading the app maintains the app state, but fresh download from Play Store/Hockey App doesn't I am noticing a weird behavior in my app and not sure what is causing it or where to look for or where to start investigating. So my main activity calls another activity sign in activity. My sign in activity has 2 layouts say layout A and layout B. As soon as I launch the app, layout A gets displayed and when I click on a button on layout A is hidden and layout B is displayed. Sideloading the app: During sideload, if I am on layout B and go to the background and come back to the app, the...

How to assign string resource to kotlin value without getting error I have value inside my code: val mainFileName = "Untitled list" As I know the best way to handle strings is using string resource, so inside String resource file I created this string: Untitled list In order to test if i done everything right, I tested that string on toast and everything is working fine: Toast.makeText(this, R.string.untitled_list,Toast.LENGTH_SHORT).show() Then I tried to assign to "mainFileName" that string resource by doing this (inside MainActivity class but...

Volley, ngrok - Can't make a post request using Volley to a ngrok REST api I have been using ngrok for a bunch of projects, mostly voice apps and rest apis. I just needed to use my rest api in an android app. However, whatever I do, it does not work for some reasons! If I try it with http, this is the error I get: E/Volley: [17118] BasicNetwork.performRequest: Unexpected response code 307 for http://1z5d90b4.ngrok.io/api/v1/users/id/ I/System.out: That didn't work! com.android.volley.ServerError If I try the https link, this is what I get:...

how to detect when a button is held? I want to perform the actions when the button is pressed not just clicked class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) var ib:ImageView=findViewById(R.id.imageView4) as ImageView var final=MediaPlayer.create(this,R.raw.

m1

) var anim=AnimationUtils.loadAnimation(this,R.anim.rotate) ib.setOnTouchListener(){...

How to return both data field and errors field with Graphql-kotlin query I am working on one server that resolve GraphQL queries. I used the graphql-kotlin library: https://github.com/ExpediaDotCom/graphql-kotlin. I defined three resolve functions(could be viewed as three fields): getxxx(arguments...), getTarget(arguments...) and getSource(arguments...). The problem is if one of my queried field failed, I will only get the 'errors' field. All other successful executed...

2 dimension list in kotlin casted to com.google.gson.internal.LinkedTreeMap So im new to kotlin and have just migrated my code from java to kotlin. I have a data class HistoryList that is used to parse a response from an API. data class HistoryList( @SerializedName("code") @Expose var code: String = "", @SerializedName("historyByDate") @Expose var histories : List ) but when I tried to parse histories and access the second list for example histories[0][0]. the return was casted to com.google.gson.internal.LinkedTreeMap. I tried to investigate the data class and...

Cant use ViewPager with androidx Im trying to implement ViewPager in my layout, but after importing implementation 'androidx.viewpagerviewpager1.0.0' I cant get it from the xml I cant find it anywhere after implementing it

Gradle Run Jacoco on Sub Projects I have a multi-module android project with the structure: :a :b :c :d :e I'm trying to run a jacoco report on module :b so that it runs on :b, :c, :d, and :e without running :a. I want all of the xml reports to be in a common folder with names of their project.xml (e.g. b.xml, c.xml, etc.) I have a pretty standard jacoco setup task jacocoTestReport(type: JacocoReport, dependsOn: ['testDebugUnitTest', 'createDebugCoverageReport']) { reports { xml.enabled = true...

Image gets uploaded 4 times on Firebase Storage I run into an issue and don't know where is the root cause. When I upload image to Firebase Storage, it get uploaded 4 times, I don't know why? Here is my code: override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) { super.onActivityResult(requestCode, resultCode, data) if (requestCode == ALEGE_POZA && resultCode == Activity.RESULT_OK) { selectedPhotoUri = data!!.data alertDialog.show()...

Handle no internet connection error of retrofit 2.6 with kotlin coroutines I'm using retrofit 2.6 with kotlin coroutines to make API call without block the UI thread, I got it work but the app crashes when I switch off the internet connection. The logcat error is: E/AndroidRuntime: FATAL EXCEPTION: DefaultDispatcher-worker-1 Here is my code: private fun handleIntent(slug: String) { val service = UtilityMethods.migrationTimeService() UtilityMethods.showView(loading_view) UtilityMethods.hideView(network_error_msg)...

Kotlin refreshing recycler with diff utils doesn't work I'm lerning how to refresh the recycler using diff Something doesn't work, I've already tried to debug it and I know that I get founded device but the recycler doesn't refresh I'm using bluetooth library it this project Recycler Page class ConnectToDevicePage : BaseFragment() { private lateinit var connectToDeviceViewModel: ConnectToDeviceViewModel private lateinit var bluetooth: Bluetooth override fun onCreate(savedInstanceState: Bundle?) {...

Practical ways to publish private jvm libraries to share between private gradle / maven projects in 2019 I'd like to refactor some of my recent code into a collection of kotlin multi-platform libraries. I then want to consume these libraries from multiple projects and ideally the build of these projects would be independent of my local dev machine. Years ago I would just install Jenkins and hook it up to Artifactory but now I've bounced off this problem twice so far because Jenkins has just become incomprehensible. Artifactory has gotten quite heavy as well. Is there a better way for small...

Extracting function (which repeats in many activities/fragments) so that it can be reused I am developing a project in MVP. In presenter I have this method which might be called by many presenters. private fun getAccessToken(email: String) { view?.showProgress() authApi.getAccessToken( MultipartBody.Builder() .setType(MultipartBody.FORM) .addFormDataPart("username", localStorage.username) .addFormDataPart("password", localStorage.password) .addFormDataPart("grant_type", Const.GRANT_TYPE) .build()...

Is there any way of getting version from build.gradle of a kotlin project? I want to get the version of my project inside my project which I have set in build.gradle. Is there any method to get the version inside my project as I need to show the version inside my software and used for compairing update info, so that I don't need to change twice every time I release a update. Is there any way to make it? group 'ProjectName.group' version "ProjectVersion"

i'm trying to implement this libraire but and i didn't find how i fix this error E/AndroidRuntime: FATAL EXCEPTION: main Process: com.fgtit.bluetoothreader288, PID: 20549 java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/com.fgtit.bluetoothreader288-2/base.apk"],nativeLibraryDirectories=[/data/app/com.fgtit.bluetoothreader288-2/lib/arm, /data/app/com.fgtit.bluetoothreader288-2/base.apk!/lib/armeabi-v7a, /vendor/lib, /system/lib]]] couldn't find "libfgtitalg.so" at java.lang.Runtime.loadLibrary(Runtime.java:367)...

Make a view scroll, revealing rows, on user swipe First time Android programmer here. I'm learning while creating this app. I would like to add gesture support to my custom calendar, so the user can swipe to expand the calendar: I used a TableView with TableRows to recreate a calendar and use it as a component. I also have a method to simulate the expanding and collapsed states (code below), where expanding sets visibility to Visible...

Plus and minus button with EdidText I have a functioning button with increment and decrement functioning correctly. but I have the need that I can also enter the value manually with an EdidText. My code is the following: Activity.tk import android.support.v7.app.AppCompatActivity import android.os.Bundle import android.view.View import android.widget.Button import android.widget.TextView class MainActivity : AppCompatActivity() { internal var minteger = 0 override fun onCreate(savedInstanceState: Bundle?) {...

How to Import Packages in Atomic Kotlin Course I'm new to programming and computer science in general. I've looked around and Atomic Kotlin seems to be the most organized and comprehensive course for new learners. I'm using Android Studio to learn how to program. When I get to Introduction to Objects > Testing the package atomictest doesn't import for any of the following exercises. I have created a sample program to check if the package and import tools...

Why character increment expression in kotlin not working in first attempt? I got confuse for the result of the code below. fun main() { var vocal = 'A' println("Vocal " + vocal++) println("Vocal " + vocal++) println("Vocal " + vocal++) println("Vocal " + vocal--) println("Vocal " + vocal--) println("Vocal " + vocal--) println("Vocal " + vocal--) } Result: Vocal A Vocal B Vocal C Vocal D Vocal C Vocal B Vocal A In line 3 (vocal++) I expected the result is 'B' but instead the result is 'A'. Why is it not increment?

Android Spinner for datepicker For a project, I need to make a spinner with a DatePicker, like this one : But I don't know how to achieve this... I saw datepickermode="spinner" but my app have to run on api level 19. My app is developped using Kotlin. Someone can help me ? Thank's a lot

Sample Fuel request compilation errors I intent to use the Fuel library inside an Android project. I added the following to my Gradle file: //core implementation 'com.github.kittinunf.fuelfuel2.1.0' //packages implementation 'com.github.kittinunf.fuelfuel android2.1.0' implementation 'com.github.kittinunf.fuelfuel json2.1.0' It was succesfully resolved. I copied the quick start code to a class, and when I try to compile, I get the...