class App : Application, SomeBehavior by someObject

@no, this line is invalid, as I have no access to someObject in class declaration.

Hi guys, does anyone use kotlin coroutines and rx in one project in production? I'd like to substitute rx, but coroutines streams (Channels) seems a bit "excessive"

How to handle this?

Has anyone faced this issue? https://stackoverflow.com/questions/52273867/mockito-kotlin-unit-testing-method-called-verification-throws-null-pointer-excep

hey I am wondering where the code of android ktx is hosted now since the github repo is not used anymore according to README

not much to do with Kotlin and Android together, but just Android, how do you organize your dimens.xml? I was thinking of having preset numbers from 10 to X, with 10 and 5 intervals in between

@dave08 and @Nawin lets move these to the #test channel

I converted my android app to kotlin and I'm faced with a class.java unable to resolve error......😫

Hello. Not sure this is the right place to ask this, but here we go. I've been playing with Kotlin for a few weeks now and I also did some Java/Scala in the past. I want to build an android app (with Kotlin), but I have zero experience with android development. I googled a bit, and there are lots of resources but I don't know what to choose. Any advice?

Whats the state of kotlin in gradle? Is it out yet?

Hello ! If I create a fragment programmatically, should I add Observers on a view for some LiveData (in a ViewModel) in the

onCreateView

function, or somewhere else?

For some reason switching from 1.2.60 to 1.2.61 and 1.2.70 is breaking my UI tests.

Hello! , I am starting a new Activity by using

startActivity(intent)

and

finish()

, but my viewModel

onCleared()

method is not called . What is the reason. I am using koin for di. Appcompat library 'com.android.support😒upport-v4:27.1.1' .

Is there anyway to customize TextInputLayout programatically?

I want to use Lambda expression but I am getting such error. Can anyone help ?

I am not sure what to do here. Should I migrate or cancel? I don't remember messing up with Kotlin compiler settings.

Should I uninstall Kotlin 1.2.70 version from Settings>Plugin and reinstall an older version?

Hello . Dear programmers, I’d be happy to help develop this library. Thank . https://github.com/dfmabbas/reactor

This message was deleted.

Hey guys, I migrated my project to androidx and now I can’t access the FileUtils class. Has it been removed or am I missing something?

Then it doesn't exist in your layout file

I've stumbled into the first problem I had caused by kotlin.. "default" function do not work if a Java class extends them, this happened with Room database, the code below gives an error when I try to compile:

error: MyDao_Impl is not abstract and does not override abstract method myInterfaceMethod(String) in MyDao

If I write the same Dao in Java it compile with no issue:

@Dao
public interface TestDao {
    @Ignore
    default String myInterfaceMethod(String test) {
        return test;
    }
}

anyone know if there's a way to make it work? maybe some Annotation?

Does anyone here have any BLE experience with Kotlin? I have hit a wall on something.

How is kotlin related to android BLE?

Hello guys, I’m using

@IntDef

annotation as below

companion object {
        @Retention(AnnotationRetention.SOURCE)
        @IntDef(
                TYPE_HEADER.toLong(),
                TYPE_FOOTER.toLong()
        )
        annotation class AdapterItemType

        const val TYPE_HEADER = 0
        const val TYPE_FOOTER = 2
    }

I noticed that values inside

@IntDef

must be of type

Long

and not

Int

.. But in compilation, I get this error :

error: incompatible types: possible lossy conversion from long to int

Any idea? 🙂

For me it compiles without casting them to long @memphis

I was looking into plaid source and they have this delegate for databinding https://github.com/nickbutcher/plaid/blob/757ee036c4eed46431982c1de5e6d0b57809fea2/core/src/main/java/io/plaidapp/core/util/delegates/ContentViewBindingDelegate.kt I’ve created mine like this, is there any performance or big difference between the two?

inline fun <reified T : ViewDataBinding> FragmentActivity.contentView(@LayoutRes layoutRes: Int) = lazy(LazyThreadSafetyMode.SYNCHRONIZED) {
    DataBindingUtil.setContentView<T>(this, layoutRes)
}

Hey all, I'm trying to figure out what is causing this error:

Hi everyone, what are some good books on android using Kotlin ? I'm working as an android developer and really would like to learn as much as possible of this amazing language coupled with the android framework. Kotlin makes android development so fun 🙂