Hello there 👋 Was wondering if anyone could provide some insight on how we can customize the app launcher icon programmatically? Let's say we allow the user to select from a list of icons in the app on so screen, or allow them to select a color in the app, and then we want to replace the default launcher for our app... Is there a way to do this? Ive read online some different "hacks" but nothing full proof or intentionally supported by Google for this type of customization. Any insights would be much appreciated 🙌

Sorry for :not-kotlin: , I saw #android and thought that was the place. Is there a channel suited for this question?

Hey guys, is it ok to use kotlin getter like that (theoretical example):

val isTooLate: Boolean
   get() = System.currentTimeMillis() > someTimestamp

I find it confusing that hovering over it in the IDE gives: public final val isTooLate: Boolean which gives an impression that this value is going to be always the same - but it's not.

Hi everyone, I am working on an app that gets data from an API every 10 seconds and then updates the UI accordingly. I currently have a while loop with a 10s delay that works infinitely.

override suspend fun getBusStopModel(): Flow<Resource<SmartBusStop>> {
    return flow {
        while(currentCoroutineContext().isActive){
            try{
                val data = api.getBusService(STOPID).toSmartBusStop()
                emit(Resource.Success<SmartBusStop>(data))
            } catch (e: HttpException){
                emit(Resource.Error(e.localizedMessage ?: "An unexpected error occurred"))
            } catch (e: IOException){
                emit(Resource.Error("Couldn't reach server. Check your internet connection"))
            } catch (e: Exception){
                emit(Resource.Error(e.stackTraceToString()))
            }
            delay(10000)
        }
    }
}

This is called and collected in the view model. I want to ask, is there any better way to achieve a periodic API call. I have looked into work manager a little bit

Hi @channel, can anyone help me here ? I am trying to create one sample project in

KMM (Kotlin Multiplatform Mobile)

in Android Studio. I followed the steps to create this, But I am facing some issues while compiling the code. Here it is:

'pod install' command failed with code 1.
Full command: pod install
Error message:
    [33mWARNING: CocoaPods requires your terminal to be using UTF-8 encoding.
    Consider adding the following to ~/.profile:
    export LANG=en_US.UTF-8
    [0m
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/unicode_normalize/normalize.rb:141:in `normalize': Unicode Normalization not appropriate for ASCII-8BIT (Encoding::CompatibilityError)
	from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.3/lib/cocoapods/config.rb:166:in `unicode_normalize'
	from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.3/lib/cocoapods/config.rb:166:in `installation_root'
	from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.3/lib/cocoapods/config.rb:226:in `podfile_path'
	from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.3/lib/cocoapods/user_interface/error_report.rb:105:in `markdown_podfile'
	from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.3/lib/cocoapods/user_interface/error_report.rb:30:in `report'
	from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.3/lib/cocoapods/command.rb:66:in `report_error'
	from /Library/Ruby/Gems/2.6.0/gems/claide-1.0.3/lib/claide/command.rb:396:in `handle_exception'
	from /Library/Ruby/Gems/2.6.0/gems/claide-1.0.3/lib/claide/command.rb:337:in `rescue in run'
	from /Library/Ruby/Gems/2.6.0/gems/claide-1.0.3/lib/claide/command.rb:324:in `run'
	from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.3/lib/cocoapods/command.rb:52:in `run'
	from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.3/bin/pod:55:in `<top (required)>'
	from /usr/local/bin/pod:23:in `load'
	from /usr/local/bin/pod:23:in `<main>'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/unicode_normalize/normalize.rb:141:in `normalize': Unicode Normalization not appropriate for ASCII-8BIT (Encoding::CompatibilityError)
	from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.3/lib/cocoapods/config.rb:166:in `unicode_normalize'
	from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.3/lib/cocoapods/config.rb:166:in `installation_root'
	from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.3/lib/cocoapods/config.rb:226:in `podfile_path'
	from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.3/lib/cocoapods/config.rb:205:in `podfile'
	from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.3/lib/cocoapods/command.rb:160:in `verify_podfile_exists!'
	from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.3/lib/cocoapods/command/install.rb:46:in `run'
	from /Library/Ruby/Gems/2.6.0/gems/claide-1.0.3/lib/claide/command.rb:334:in `run'
	from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.3/lib/cocoapods/command.rb:52:in `run'
	from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.3/bin/pod:55:in `<top (required)>'
	from /usr/local/bin/pod:23:in `load'
	from /usr/local/bin/pod:23:in `<main>'
        Please, check that podfile contains following lines in header:
        source '<https://cdn.cocoapods.org>'
         Please, check that each target depended on sharedKMM contains following dependencies:

Thanks in advance.

Hello people, any idea why Compose previews don't work in android modules ? unless i call the composable in the main android app module ?

Hi, someone knows how to update

lint-baseline

files ? I already have generated files, but with changes in code, i would like to regenerate it, or update.

Hi, I've been having this problem all day and can't figure it our. I have asked in other places but no joy (There is a link to the Stack Overflow question at the end). Ime really stuck and hoping someone here takes pity on me :). I've been following a tutorial that uses a provider to talk to a DB and use an observer to keep a RecyclerView up to date. Its a bit out of date so I've spent a few hours getting it (kind of working). I got as far as getting it working when there were no records in the DB (I pass null cursor to the RecycleViewAdapter and if this is the case it displays instructions in the list view). When I run it I get the instructions even though there are 2 records in DB (it should dhow the records). The problem is when I have data it does not seem to put it in the RecycleView.

Can someone please give me some guidance on the 'Not Kotlin' reaction? This is the android channel and I am using Kotlin. Sorry, I'm confused. I thought this channel was for questions about Kotlin-Android development (I would understand if i had been asking XML or gradle questions). Just trying to understand so I don't post inappropriate stuff. Also, the other reaction was 'thread,-please. I get it, I should of posted a short message and put the rest in the comments but cant work out how to add a reply to by post when others have not replied, how do I do this?

I want to notify the user when the item already exists in the room database. The list is a Flow

Flow<List<Favorite>>

and I collect it in my ViewModel. Whenever the user adds a Favorite I execute this function in my VM:

fun addToFavorite(favorite: Favorite, alreadyFavorite: () -> Unit, addedToFavorite: () -> Unit) {
    viewModelScope.launch {

        favoriteRepository.getFavorites().collect(){ favoriteList -> 
            if(favoriteList.contains(favorite)){
                alreadyFavorite()
            }else{
                addedToFavorite() 
                favoriteRepository.insertFavorite(favorite)
            }
        } 
    }
}

Now the problem here is that favoriteRepostitory.insertFavorite() adds the item to the room database and triggers the getFavorites().collect. So an endless loop gets created and the item is added to the room database indefinitely. How can I get the result of my getFavorites Flow without using collect? Or is there any other way?

Do you have a repo where I can implement local notifications?

I’m getting very unwanted behaviour in ROOM database, actually i have updated version of room but below class/entity does not have any changes but i’m getting below error, It is saying that Expected value not equals to Found , but Entity class is same

Hello everyone I want to know how I can improve this code snippet. I am tasked with converting the java code to kotlin

public class E2EEService {
    Context context;
    public EThree eThree = null;
    ApiService apiService;

    public E2EEService(@NotNull ApiService apiService, Context context) {
        this.apiService = apiService;
        this.context = context;
    }

    public void initE2EE(Callback<Void> initCallback) {
        Callback<User> requestCallback = new Callback<User>() {
            @Override
            public void onSuccess(User user) {
                Function0<String> getToken = () -> user.virgilJwt;
                EThreeParams eThreeParams = new EThreeParams(
                        user.uuid,
                        getToken,
                        context
                );
                E2EEService.this.eThree = new EThree(eThreeParams);
                initCallback.onSuccess(null);
            }

            @Override
            public void onError(Throwable throwable) {
                initCallback.onError(throwable);
            }
        };

        apiService.getUser(requestCallback);
    }

I read stuff online on

-Xobjc-generics

to pass generic information to Objective-C code, but all examples seem to be outdated on how to set this flag. Does anyone have a recent example?

Hi, I want to share with you this repo that improves Server Driven UI with compose, please take a look and share with me any comments or proposals https://github.com/javierpe/ArtGallery (e

Does anyone have any experience with Frida or Anti hooking detection in android ?

Is there a way to find out from just opened app, what are the intent details used to open that app? E.g. the app can have multiple activities, I would like to know which one was requested when the app process starts.

👋 Hello, team! I feel glad to be here.

Is there a reason for

lintPublish()

to be ignored in multi-module projects?

:myLib

<--- module with a library (using

lintPublish(project(":myLib-lint")

)

:myLib-lint

<--- lint checks module for my library

:featureX

<--- some library including

:myLib

as dependency lint checks are not performed in

:featureX

module unless I manually

lintChecks(":myLib-lint")

in addition to the dependency on

:myLib

I'm using version 1.4.0 of the orchestrator. When I launch my test on my Pixel 2 (real device) all test run as expected. When I launch the same tests on my Pixel 4 (real device) no test is found / run. The Pixel 2 is running on Android 11 (API level 30) and the Pixel 4 on Android 13 (API level 33). My test only limit SDK level above 23 so they should both run the same tests. If I remove the

execution = "ANDROIDX_TEST_ORCHESTRATOR"

all test run but they fail (on both devices) because I need

testInstrumentationRunnerArguments += "clearPackageData" to "true"

I'd appreciate any suggestion. Thanks EDIT: nevermind, apparently I had to use a newer / non stable version of orchestrator (and/or) runner

👋 Hello, team!

Hello! I am playing around

WorkManager

nowadays. I was just wondering if you have any recommended design patterns/code samples that you have used in your projects for injecting/using class instances into your

Worker

classes without the use of any dependency injection frameworks. Those classes can be repositories, data sources, etc, that may have executions of IO operations. Worth to mention: what I see, in general, is either the use of

Hilt

to inject the instances of classes to the constructors of `Worker`s or using singletons (kotlin objects) to make function calls. I am asking for other alternatives to use. Note: it is important to note that I am asking this question for Periodic Worker which complicates the usecase as I am imagining.

Anyone have tips for connecting to a local server through the android emulator. I feel like I’ve used every stackoverflow trick out there but most the posts are old. I tried plugging in my wifi ip address in place of local host in my code. Using retrofit to make the api call. I also tried the 10.0.2.2 trick which tells the emulator to connect to the computers wifi. Still not working. Getting an error saying failed to connect. I have the spring boot server running through my terminal.

Would it help if I showed my kotlin code api call??

1. When creating a

StateFlow

with

stateIn

, and you want the flow producer to be active all the time (even when the app is in the background), what coroutine scope should be used? 2. When observing to the above

StateFlow

, even though the flow producer would live forever, can you still use

repeatOnLifecycle

in the UI to safely unregister?

I used to write some utils in the past in groovy and import them to build.gradle with

apply from

, eg.

apply from: "$rootDir/gradle/getversion.gradle"

I still keep my app config in Groovy's build.gradle, but I would like to write my utils in kotlin. Can I import kts files from build.gradle?

Hi I have a delete request that works fine, but when I make subsequent delete calls to an item that has already been deleted in the API, I get an Exception, and the app crashes. I tried handling the error using Try/Catch with different exceptions eg(HttpException, IOException, etc) to prevent the app from crashing but it doesn't seem to work.

private fun deleteFavourite(
    favourite: GetFavourite?,
    viewModel: WallpapersSharedViewModel
) {
    //handling 404 error in case of subsequent Delete request
    try {
        if (favourite != null && !favourite.isEmpty()) {
            val favouriteId = favourite.get(0).id
            viewModel.deleteFavourite(favouriteId)
            Log.i("hiiiiyaa", "deleted${favouriteId}")
        }
    }
    catch (e: HttpException){
        Log.i("hiiiiyaa", "cannot find item to delete in the Api")
    }
}

Error:

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.catexplorer, PID: 28492
    retrofit2.HttpException: HTTP 400 
        at retrofit2.KotlinExtensions$await$2$2.onResponse(KotlinExtensions.kt:53)
        at retrofit2.OkHttpCall$1.onResponse(OkHttpCall.java:161)
        at okhttp3.internal.connection.RealCall$AsyncCall.run(RealCall.kt:519)
      ............