Can I use Kotlin contracts to validate a minimum Android SDK level? I’m hoping for something like the following, to encapsulate the version test with the feature test:

`at`ExperimentalContracts
fun isMyFeatureSupported(): Boolean {
    contract {
        // The implies expression fails to build with "Error in contract description:  unsupported construction"
        returns(true) implies (Build.VERSION.SDK_INT >= BUILD.VERSION_CODES.something)
    }

    return (Build.VERSION.SDK_INT >= BUILD.VERSION_CODES.something) &&
            myFeatureTest()
}

Hi everyone. I published my app using bundles on play store a few days ago but it's not getting compatible with all devices. May I know what can be the issue. I have checked all the permission in the manifest. but unable to understand. 😞 Anyone pls suggest something

hello there , my app is crashing 💥 and returning null path error in piccasso while i am sending text to server, hence i protect every code with "*IfNotNull(

if(x != null)

)*" i spend over 1 n half week stucked trying to solve this problem 😭 please please help me

viewModelScope.launch {
    try {
        val apiRes = AccountRepository().connect.createAccount(accountName.value, phoneNumber.value?.toInt())
        _showNotif.postValue("success")
    } catch (throwable: Throwable) {
        when (throwable) {
            is IOException -> _showNotif.postValue(throwable.message)
            is HttpException -> _showNotif.postValue("${throwable.code()}")
            else -> _showNotif.postValue(throwable.message)
        }
    }
}

I want to catch an exception from retrofit. the api returns 500. however why does the viewModelScope return me the success message indicated by

_showNotif.postValue("success")

code?

Hey people good day. Please has anyone worked with exoplayer in a recyclerview using Kotlin? I have a few questions

Anyone else experiencing super-annoying inserted linebreaks when moving source files within Android Studio? For example:

val normalized =
    normalize(
        flds[0]
    )

If I select the single-line version of this and perform “Reformat code” then it doesn’t change, so I don’t think this is due to code formatting settings. And to be clear, it’s nowhere near hitting the line length limit.

I was using live data with paging library 2 but now i upgraded to paging 3..I have a listData(which is a flow that returns paging data) and a searchQuery(livedata) and filterBy(livedata) so whenever i change it i also need the pagingdata to be updated...should i use MediatorLiveData ? Or is there any method using slow for this ?

I added to this issue today. Maybe someone has a good idea for you to solve? https://github.com/jaredrummler/ColorPicker/issues/90

Hello, I wrote a Multiplatform testing library that includes backticks named functions. I’ve packed and shipped via Bintray, I’ve included in tests of my Android project. Tests are running just well, but when I build the project I got:

> Transform artifact assert4k-jvm-0.2.2.jar (studio.forface:assert4k-jvm:0.2.2) with DexingWithClasspathTransform
AGPBI: {"kind":"error","text":"Class descriptor 'Lassert4k/CollectionKt$is not$2;' cannot be represented in dex format.","sources":[{}],"tool":"D8"}

> Task :app:mergeExtDexBetaDebugAndroidTest FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:mergeExtDexBetaDebugAndroidTest'.
> Could not resolve all files for configuration ':app:betaDebugAndroidTestRuntimeClasspath'.
   > Failed to transform assert4k-jvm-0.2.2.jar (studio.forface:assert4k-jvm:0.2.2) to match attributes {artifactType=android-dex, dexing-enable-desugaring=true, dexing-is-debuggable=true, dexing-min-sdk=21, org.gradle.libraryelements=jar, org.gradle.status=release, org.gradle.usage=java-runtime, org.jetbrains.kotlin.platform.type=jvm}.
      > Execution failed for DexingWithClasspathTransform: /Users/davide/.gradle/caches/modules-2/files-2.1/studio.forface/assert4k-jvm/0.2.2/3c15ade7f5afff280c26ca8346b645c620f3af76/assert4k-jvm-0.2.2.jar.
         > Error while dexing.

Any idea?

i've got gradle error without error message. what should I do next?

I get this error while running ./gradlew assembleQaDebugAndroidTest in my project. What could be the problem and how can I fix it? It's about duplicate classes with androidx/appcompat. Thanks for the help in advance! 🙂

Execution failed for task ':commons:ui:checkQaDebugAndroidTestDuplicateClasses'.

> A failure occurred while executing com.android.build.gradle.internal.tasks.CheckDuplicatesRunnable

> Duplicate class androidx.appcompat.content.res.AppCompatResources found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.content.res.AppCompatResources$ColorStateListCacheEntry found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.graphics.drawable.AnimatedStateListDrawableCompat found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.graphics.drawable.AnimatedStateListDrawableCompat$1 found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.graphics.drawable.AnimatedStateListDrawableCompat$AnimatableTransition found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.graphics.drawable.AnimatedStateListDrawableCompat$AnimatedStateListState found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.graphics.drawable.AnimatedStateListDrawableCompat$AnimatedVectorDrawableTransition found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.graphics.drawable.AnimatedStateListDrawableCompat$AnimationDrawableTransition found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.graphics.drawable.AnimatedStateListDrawableCompat$FrameInterpolator found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.graphics.drawable.AnimatedStateListDrawableCompat$Transition found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.graphics.drawable.DrawableContainer found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.graphics.drawable.DrawableContainer$1 found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.graphics.drawable.DrawableContainer$BlockInvalidateCallback found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.graphics.drawable.DrawableContainer$DrawableContainerState found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.graphics.drawable.DrawableWrapper found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.graphics.drawable.StateListDrawable found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.graphics.drawable.StateListDrawable$StateListState found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.widget.DrawableUtils found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.widget.ResourcesWrapper found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.widget.TintContextWrapper found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.widget.TintInfo found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.widget.TintResources found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Duplicate class androidx.appcompat.widget.VectorEnabledTintResources found in modules appcompat-1.0.0-runtime (androidx.appcompat:appcompat:1.0.0) and jetified-appcompat-resources-1.1.0-runtime (androidx.appcompat:appcompat-resources:1.1.0)

Can anyone tell me why bundles are serialisable ?

I’m sorry if this has already been debated in here but I really want to get people’s opinions about Koin vs Hilt. I work on an app that was originally using Dagger 2 but we switched over to Koin over a year ago and I really like it compared to Dagger 2. Now that Hilt is out I’m facing a tough decision of whether or not I switch to it. Koin has worked really well for the app I work on and it has solved a lot of problems that Dagger 2 struggles with. Hilt seems to simplify things over Dagger 2 but it seems as though Koin still has the upper hand in certain areas. Hilt is backed by Google and supposedly has a better performance so I’m faced with a tough decision.

Hey Guys. please help me I am struggling with this question already few days, and not able to find a solution. The issue is related to DataBinding and Custom Attributes https://stackoverflow.com/questions/62487298/android-databinding-with-custom-attribute-does-not-work

Hey guys, I’m using vlc-android in order to play RTSP live stream in my android application. the following code renders the stream video onto the texture view. but i need to get the current frame each interval of time to perform image processing on it. please help me in resolving this issue.

Has anyone experience any problem with new Android Studio (beta or canary) where it keeps reseting coding style setting back to default values?

do anyone have example of splash screen with jetpack navigation?

‘|pmn'?

How to get kapt to work with Kotlin DSL in android. I've searched this thread but couldn't get a proper answer. I'm basically trying to get Hilt working on Kotlin DSL (in android). I've tried the following

plugins {
    kotlin("kapt")
}
and
apply(plugin = "kotlin-kapt")

But when I try to add this, it doesn't work.

dependencies {
    kapt(SupportLibs.ANDROID_DAGGER_HILT_COMPILER)
}

It imports "org.jetbrains.kotlin.kapt3.base.Kapt.kapt" which says Type mismatch. Required: KaptOptions Found: String Am I missing something. I'm new to Kotlin DSL in android. I've searched for it a lot but couldn't find anything. Any help would be highly appreciated. Thanks Slack Conversation

Hello, is there any example with jetpack compose BottomAppBar?

Which one do you recommend to build Android UI? Flutter or Jetpack Compose? And what are some of the benefits Compose has over Flutter? Do you have free resources to learn Compose?

I'm currently learning Android development but most of the topics have already been deprecated. What resources would you suggest to learn the latest development tools and practices?

Hello, I am bit new to Kotlin multi platform and trying to create a multi platform module to be used in our iOS and android apps. I have few questions if somebody can provide me more info or redirect me to correct documentation: 1. How can I specify minimum iOS version & target iOS version for iOS frameworks rather than going with default one? 2. Is there any limitation on what Apple's iOS native framework we can use from Kotlin module? I was trying to import

Combine

framework but was not able to do.

Can I use interface implementation by delegates with an activity? I mean, normally, we pass the delegate object through constructor, but here, we don't construct the activity's object. Is delegation possible with objects not created at constructor invocation?

Hello. I am trying to get the full path of an image selected from gallery while following Scoped Storage rules, but I'm struggling with it. Can anyone help?

Hello! I've created a

src/main

folder inside the

buildSrc

folder... Is there a way I can access to the files inside

src/main

from the

build.gradle.kts

file?

Hello, I am currently working on a multiplatform library (android/iOS). After updating the Kotlin plugin to 1.4-M2 the sourceSets for commonMain are not published (only the platform specific sets). It is working with Kotlin plugin 1.3.72. Any Idea why?

Hello here, I have an Image view that can be zoomed and scaled. How can I get the coordinates or bounds of the zoomed image and use it to set up the same image in another activity/fragment. I don't want to crop the view or use a bitmap. Is this possible please? Any help would be sincerely appreciated.

Hey everyone I'm playing with

Glide

,

Bitmap

,

Canvas

, and

Paint

and I managed to create code to apply a mask using

PorterDuff

. Although I managed to complete the task, the Kotlin is kinda unsightly. Can I have some help trying to make function look more like Kotlin? I'm a junior-ish dev so any insights can help. I can DM code or share in comments.

Hey are there any recommendations how i can simplify the creation of a viewmodel across all my features. Right now I have it set up like this. I tried briefly looking into Kotlin delegates but I haven’t come across an example that didnt seem overly complicated. I would like to continue to use Dagger and not switch to a different dependency injection framework.