Hi guys, how are u dealing with network connection changes after Lollipop (once Google dissuade to use broadcastReceiver)? I would like to notify all my activities when the user loses network connection. I have been reading about jobScheduling to deal with that but I’m not totally convinced maybe it’s not the perfect place to ask it, sorry in advance

Hi guys, I'm having this compilation issue:

error: cannot find symbol
@Generated()
error: package javax.annotation.processing does not exist
import javax.annotation.processing.Generated

It seems to be related to dagger2, happens when I try to run my Espresso tests in my ec2 instance. I'm using Open JDK11, Gradle 4.10. Any Ideas?

Hello, does anyone have an example how to set Dispatchers.IO as okhttp3 Dispatcher?

What is the exact difference between

map

and

switchMap

in

transformation

and when to use it ?

Hello everybody does anyone have sample code or github project showing how to write unit tests in Android for the new-ish stable Kotlin coroutines 1.x.x? I had a project using MVVM and Kotlin experimental coroutines. My unit tests are failing now that I upgraded. I added this: testImplementation "org.jetbrains.kotlinx:kotlinx-coroutines-test:$rootProject.coroutineVersion" and have resolved one of the issues but now I'm getting a getMainLooper is not mocked error. Was hoping someone could help me out, thanks!

.

Hi! Does anyone know if it’s possible to have an abstract function that takes an interface as parameter, and then when overriding that method it would use the specific implementation of that interface? I’m guessing I have to use generics, but I can’t get it to work…

class StartViewModel() : BaseViewModel() {
    sealed class Input : IInput {
        object ButtonClicked : Input()
    }

    override fun handleInput(input: IInput) { //I want this to be of the type Input, instead of the interface      
    }
}

abstract class BaseViewModel {
    interface IInput
    protected abstract fun handleInput(input: IInput)

    init {
        handleInput(something that implements IInput)       
    }
}

If starting new app with min api 21 should I use

vectorDrawables.useSupportLibrary = true

in gradle and

srcCompat

on

ImageView

for vector images or is it ok to use just

android:src

? Are there any fixes for older Android versions in compat version like for

Fragments

? Maybe @jw can help me with background info on that? Thanks!

Does anybody have same? how do u fight it? (appears time by time, usualy clean cache is helped but not this time

Can anyone recommend a book on RxJava (kotlin) with Android? I'm learning from examples and reading articles, but I have some knowledge gaps I'd like to fill.

Hi. I have cloned a repo with an AndroidStudio project and I opened it in IntelliJ but the project doesn't build. Has anyone seen this before?

Hi. What do I need to import so that Android Studio recognizes this? Or is it a project setting?

anyone know why in this instance casting to

T

is unchecked?

Hi there. I have this message in logs. Could you tell me what does it mean? My app is heavy loaded with map and markers on it.

🗡️ + :java: + :kotlin: + kapt = ☠️ + 😭 😭 😭 😭 😭 😭 How can I resolve this:

> Task :app:compileDebugKotlin FAILED
e: Supertypes of the following classes cannot be resolved. Please make sure you have the required dependencies in the classpath:
    class com.om.nx.di.DaggerAppComponent, unresolved supertypes: AppComponent

Only occurs when running unit tests .

hey, anyone been porting gradle to use kotlin dsl? I'm trying to but no matter what, I get

> The 'java' plugin has been applied, but it is not compatible with the Android plugins.

My guess is that

kotlin-dsl

plugin includes java plugin which interferes with android plugin. Anyway, I have literally no idea how to repair it

Hello, since the last (?) AS upgrade I can’t put a breakpoint on a line with an if condition. I am the only one having this issue?

Hey everyone, Maybe someone can help me out? I am creating a Moshi Codegen adapter like so:

@JsonClass(generateAdapter = true)
data class NetPost(
    val id: Int,
    @RenderedText val title: String,
    @RenderedText val excerpt: String,
    @RenderedText val content: String,
    val images: NetPostImages,
    @UtcDateTime @Json(name = "date_gmt") val date: ZonedDateTime,
    @UtcDateTime @Json(name = "modified_gmt") val modified: ZonedDateTime
)

Setting up my moshi instance like so

Moshi.Builder()
    .add(RenderedTextAdapter())
    .add(UtcDateTimeAdapter())
    .build()

And am using all of this inside Retrofit When accessing the api, i get the following error:

java.lang.IllegalArgumentException: Unable to create converter for java.util.List<(...).NetPost>

Seems like I missed something with my setup? The

NetPostJsonAdapter

class is generated correctly, but it does not seem to work inside of a List.. ?

any solution on this? (clearing caches, reimports not helping)

Do we still have no proper keyboard show/hide event handling on Android in 2019? /rant

If you're wondering why I ask this in a kotlin related channel, it is because I see multiple examples where people use

lazy

or

lateinit

which will retain the instances. The same goes for views, unless you use synthetics which in itself is a bit "hacky" imo.

I've looked pretty thoroughly in GitHub and

stackoverflow

and have not been able to find an example of the following: Has anyone ever created an android library that can receive push notifications, without any sort of coordination with the app that is hosting it?

is there any simpler way to do this?

Due to dead code elimination I usually do:

if (BuildConfig.DEBUG) Timber.d(...)

Is the compiler smart enough to do the same if I make an inline function for that check?

is there a built-in KTX extension for dpToPx ?

Hello there, I am making a application that resends a notification for personal purposes and I have already managed to duplicate the notification, however I cannot find a way how to duplicate the channel since my device is running android 8.1. Does anyone here know about any easy to use method/function to duplicate a channel from

StatusBarNotification

?

Im having trouble creating a unit test without needing robolectric. I am using AndroidThreeTen.init(this) in my code and when i run my test if I disable robolectric I get an error:

org.threeten.bp.zone.ZoneRulesException: No time-zone data files registered

and if I leave it enabled I get this:

[Robolectric] com.mycomp.,yapp.utilities.log.LogTest.on Calling function w it returns an Int: sdk=28; resources=BINARY

I have tried using testImplementation ‘com.jakewharton.threetenabp:threetenabp:1.1.0’ made no difference. I have AndroidThreeTen.init(this) called in my application and testApplication. any ideas? this is my test

@Test
    fun `on Calling function i it returns an Int`() {
        assertThat("Returned class is not an Int", Log.i("Test", "Test"), isA(Int::class.java))
        assertThat("Returned Int is not 0", Log.i("Test", "Test"), `is`(0))
    }

Or do I have to use robolectric because of this? (Side note: Log is not the util.log from android but my own class) (edited)

@jw Whats your opinion about Flutter?

@efemoney my studio was fine until last night. Do I really have to get this eap?