Welp, I’ve just tried to update support library to 27.0.1 version from 26.1.0 and got a whole bunch of nullability errors because a lot of methods like

getActivity

in Fragment got

@Nullable

annotation. But what should I do now in following situations? For example, I build DialogFragment. I need a context in

onCreateDialog

method. To do something like this:

return MaterialDialog.Builder(context)
                .title(R.string.invitation_to_team_dialog_title)
                .content(buildDescriptionText())
                .build()

onCreateDialog

method must return NonNull Dialog instance so I can’t use

context?.let

call. And I really doubt context may be null on this stage (as well as activity in Fragment’s

onCreateView

method, I suppose?). So I forced to use ugly

!!

call. @jw as I know from your twitter these annotations were your endeavor. So, from your opinion, what should be an intended workaround in this situation? I don’t really like double exclamation point. It looks like very Java-ish way to care about nullability, sort of “I don’t care, whatever”

I'm looking at some dependency injection frameworks for my next project. at the moment i would prefer Koin over Dagger because of its simplicity. Any thoughts on that, pitfalls I have to be careful with, other frameworks I should have a look at, etc?

Anyone knows if there is a PMD / Findbug / CheckStyle integration with Kotlin? There dosent seem to be an official SonarQube plugin (yet) so we are looking for alternatives.

Okay, here's one - why is it that when I create an instrumented test in Kotlin, and I try to use the play button in the IDE for that class to run it, it says empty test suite? But if I run

./gradlew cAT

in the terminal, it works fine?

morning, anyone had any ideas with Kotlin 1.2 and the rx call adapter? the call is made, response comes back and shows in the logging interceptor for retrofit but never comes back to the subscribe function

A little help please? I'm having trouble with an inner class being able to use a function that is declared in the outer class. Not sure why this is happening because the tutorial I'm doing has the same thing but no error. Here is a simplified version of the code with the failing part pointed out by the comment:

class DAO(){

    fun fetchPicture(){
        // Code...
    }

    inner class InnerClass : AsyncTask<String, Int, Bitmap>() {

        override fun doInBackground(vararg params: String?): Bitmap {
            var network = NetworkingDAO
       // Following line fails with "Unresolved Refereence: fetchPicture"
            network.fetchPicture(picture[0])
        }
    }
}

https://stackoverflow.com/questions/31723143/kotlin-uses-runtime-assertions-for-null-checking-performance-overhead is this is still possible?

Maybe a dumb question, but: is the source for the

kotlin-android

plugin available, and if so, where does it live?

@jw I suppose you don't use visibility so much... when the activity code is full of them, then it's either eligible for a major refactoring or at the very least have one of these tricks to make it look cleaner...

cleaning up interaction with visibility is number 999,999,999 on the list of things that can be improved in every app i've ever seen

Thanks! Yes, you are right. But I don’t prefer to bind it from presenter. It is view related operation so let your activity to set that list.

Hi, quick question does anyone know how to use extensions to reference a view included in another view (include) ? am getting IllegalStateException.

I need some help with Exoplayer - I have a series of streaming urls, some need HlsMediaSource, some need ExtractorMediaSource. Is there a way to predetermine which MediaSource to construct depending on the type of link, without knowing which one they need ahead of time?

i’m looking for android application sources for java samples for official tutorials like this one rewritten in kotlin: https://developer.android.com/training/basics/fragments/fragment-ui.html has anyone done this or at least some parts?

Anyone in here that knows how to fix missing stdlib functions after upgrading to 1.2?

Hi guys! Anyone got

Error:(31, 26) 'use((T) -> R): R' is only available since Kotlin 1.2 and cannot be used in Kotlin 1.1. Requires newer compiler version to be inlined correctly.

updating to 1.2 (from 1.1.51)?

Hi, is it possible to connect with A2DP to a BluetoothDevice programmatically ?

I have a java class which reads data from some source and casts that data into given class. I pass the class name in which data has to be caste as SomeUserClass.java. How can i pass this info from Kotlin class to java function. I tried SomeUserClass::class.java but it gives me error. This is the java function signature public T getDataFromCache(Class<T> model) { // some operation } and while calling from java i use getDataFromCache(SomeUserClass.class); how can i call this function from Kotlin class ? Thanks in advance

@Sudhir Singh Khanger

1.2.0-release-Studio3.0-1

is the version you will use as a plugin in AndroidStudio,

1.2.0

if for your gradle dependency

Is there anyone knowing a good article/source of arguments against ReactNative that I can use to confront some ppl in my organization? I’m not too much into it, but from what I follow around it doesn’t seem like a way to go, cause I usually find online more cons then pros. But from business perspective it would save some money. What are your thoughts on this in general?

anyone had issues with by lazys and paperdb?

somewhere i can download ?

Whoa, Android Support Library team interested by Kotlin language feature 👏 https://youtrack.jetbrains.com/issue/KT-4075#comment=27-2588411 Something interesting coming 🤔

hey, how do you usually handle situations, when you need to store for example

Context

var/val in your class and in the end you want to clean it/set to null to prevent memory leaks?

var Context?

,

WeakReference<Context>

?

@ibcoleman if you look at parcelable you might also want to check out https://android.jlelse.eu/parcelable-vs-serializable-6a2556d51538 which shows some interesting results.

Is there a way to work around that?