int for example the

ApiManager.INSTANCE.doSomething()

, can we override the INSTANCE getter function?

hey, I've got a problem: I'm trying to use Retrofit with the Kotlin Coroutine-integration (just make the functions in the

API

interface

suspend

and return the data directly, without being wrapped in

Call

) but as soon as i try to do this, i get

java.lang.IllegalArgumentException: Could not locate call adapter for class java.lang.Object.

any ideas? if i use the

Call

wrapped way it works

do we have the bundle saved instance state after the app recovers from a crash? didn't find relevant results online. thanks for the icons

HI guys, someone can tell me if Retrofit ignore a

@Body

null?

@PUT("create/{name}")

fun create(@Path("name") name: String, @Adrien Body requestBody: NameRequestBody?)

Hey, everyone, I’ve been trying to find a way to reverse the order of the items in a paged list (or its data source) but I’m having 0 luck and can’t find any articles on how to do that. Does anyone know a way to achieve this?

Anyone using kodein dependency injection here ???

This message was deleted.

Has anyone given formal workshops at work to train their team on Kotlin? Do most people just follow the Koans or does anyone know of some opensource lesson materials to use?

Hello, I’ve updated some stuff ( Gradle, AGP, plugins & libs ) and now I have this error

Cannot inline bytecode built with JVM target 1.8 into bytecode that is being built with JVM target 1.6. Please specify proper '-jvm-target' option

calling inline functions from libs (

ktx

& various

-ktx

). What could have go wrong? I have both:

android
    compileOptions {
        sourceCompatibility = JavaVersion.VERSION_1_8
        targetCompatibility = JavaVersion.VERSION_1_8
    }
}

&&

tasks.withType<KotlinCompile> {
    kotlinOptions.jvmTarget = "1.8"
}

I'm new to Android programming and I have been trying to decide on the best approach for polling a device for long/lat. Originally, I was going to have this in a background service, but having read that you can only really poll once in a 15 minute time-frame I have since abandoned that. I have read that AlarmManager can be used however, I feel like this to, isn't suitable. I have been looking into Foreground Services and they seem OK - however; Whats my best approach if I want to run a task in a foreground service say every 10 seconds? - is a foreground service even the right way to go?

Does any one know what the use of

androidx.concurrent

component, is there any sources talking about it

why onEvent is not triggered?

Hello My project is MVVM architecture. I use dataBinding with ViewModel and View and ViewModel is AAC ViewModel. I know ViewModel must never reference a view, or it occur memory leak. When onClick called, I pass view by parameter. Although ViewModel doesn’t hold view, is it occured memory leak? android:onClick=“@{(v) -> viewmodel.onClick(v)}”

In my app I always retrieve data from a room database, display it, and then update the data over the network (and then animate the change in data). I’m wondering what the best approach would be using clean architecture. Currently in the ViewModel a coroutine is launched and from inside the coroutine a Use Case is executed to retrieve the data from the db, then the livedata object (observed by the view) is updated. After this a second Use Case is launched to retrieve the data from the network, and then the livedata is updated again. I would like to be able to simplify this so that the ViewModel doesn’t know about where the data is coming from (or the fact that it comes from db first then network), so that it simply executes one GetDataUseCase and inside the use case (or inside the repository if that is preferable) I will retrieve data from db first, push data back to the ViewModel, then retrieve data from network, and push the updated data to the ViewModel. What would be the best approach to achieve this? I thought about adding LiveData objects inside the UseCase or Repository however in order to observe these objects I need to give them a lifecycle owner, and also since the whole process is kicked off inside a coroutine inside the ViewModel, I’m not sure how to do that. I’ve also read that the UseCase should be a pure Java/Kotlin file so that it stays testable.

Can anyone share their goto approach for Intent dispatching using Kotlin? I've seen Context Extensions for instance

Context.startParticularScreen(intentParams)

but that seems wrong given it's an extension on such a global object

Hi all, did some one face similar - AS3.5 -> AS3.5.1 update broke synthetics. tryed: Invalidate & restrt, reimport, clearing cache, full rebuilds, downgradte to AS3.5 and it keep broken 0_0

Has anyone dealt with "synchronizing" coroutines across Android lifecycle events? For example:

onCreate(...) {
    scope.launch {
        asyncThing()
    }
}

onResume(...) {
    scope.launch {
        // code that depends on asyncThing() having completed
    }
}

Is there a way to "join" such that the onResume work does not start until the

asyncThing

is done?

Cannot inline bytecode built with JVM target 1.8 into bytecode that is being built with JVM target 1.6. Please specify proper '-jvm-target' option

anyone dealt with this error before? I have specified target to 1.8 in gradle and also in kotlin compiler target...

Hi, one question: What is the difference between declaring a function as a val vs declaring it as a fun on a class? I read somewhere that when calling from Java, the one defined with val becomes cumbersome to use. Is that still the case?

does anyone know how to debug a FCM notification while app is closed

Anyone got the Kotlin Android associate certificate discount code from Android Dev Summit Livestream?

could someone explain what use case we face when we will to use ViewModelFactory and pass the ViewModelFactory to the second argument of

ViewModelProviders.of()

?

hello guys i know this is not the right place to ask but how many of you uses spoon-client/2.0.0-SNAPSHOT??? it seems disapeared from the internet 😞

It's ok inject a ViewModel in a BottomSheet? My BottomSheet should load some options to show

Hello guys, simple question: where can I find Android Jetpack libraries source code?

Does AndroidStudio for Kotlin have anything like the

// MARK:

syntax that shows up in XCode/Swift. It’s really handy for organizing chunks of functionality in different files

I've got error:

navigation destination com.example.app.myapp/action_homeFragment_to_mainFragment is unknown to this NavController

mainFragmentViewModel.navigateToHome.observe(this, Observer {
            if (it) {
                this.findNavController().navigate(R.id.action_mainFragment_to_homeFragment)
            } else {
                this.findNavController().navigate(R.id.action_homeFragment_to_mainFragment)
            }
        })

Any one can help me or link me to a resource on a proper way to handle login with mvvm pattern and using sealed classes and using room as a cache storage I iv always have problem with this