malware programmers are programmers too

@jw How to check the log of

println

when I execute the Android?

What does this line of code mean?

@gildor You can only cast if the instance/object is inheritance by it?

Ideally I don't want to have two IDEs open, IntelliJ CE has enough Android support already iirc

Why do you want to mock String? Just give input and check output Something like

assertEquals("HI", "hi".toUpperCase())
assertEquals("1", "1".toUpperCase())

It’s easy to test function without side effects. If a function has side effects you should probably refactor it to make testable. Always depends on your case

Hey, I'm looking at KotterKnife and it doesn't look like there's a way to unbind views once they've been initialized. Won't this causes leaks?

Is there any example, how to inject an anko generated view/layout into a layout inflated from XML? I have a placeholder (

FrameLayout

) in my XML layout and I want to populate it with an unknown number of `TextView`s, programmatically, at runtime. I tried something like:

placeholder.addView(xxx)

, where xxx is a VerticalLayout created using anko, but I am getting the Exception:

java.lang.IllegalStateException: The specified child already has a parent

I create the VerticalLayout with this function:

fun createTextViews() : View {
        return verticalLayout {
            textView {
                text = "TextView 1"
            }

            textView {
                text = "TextView 2"
            }
        }

    }

I am using Android Studio 3.0.1 and I was prompted to update my kotlin plugin to version "1.2.10-release-Studio3.0-1", which I did. Now nothing works because I get a "Plugin Error: Kotlin threw an uncaught AbstractMethodError." on startup. I changed to

ext.kotlin_version = '1.2.10'

but still I get the error. Im not sure what to do now. Any suggestions? Edit: I got a new error during this start up:

Plugin Error: Kotlin threw an uncaught NoSuchMethodError.

before the AbstractMethodError.

Hey all, I am looking for a good guide on making a reusable drawer layout for an app I am playing with. The problem I am having is passing the specific activity DSL to the drawer layout, when I am calling my class.

Hey how is this answer working. I mean he neither did declare a default constructor nor default values for the primary constructor params. https://stackoverflow.com/questions/44117970/kotlin-data-class-from-json-using-gson

Hey all, I have an issue where I have a Parcelable object that I want to pass to an activity. Let’s say this object is a

Conversation

and it also contains a list of

ConversationMembers

. The thing is, my ConversationMember model has a

conversationId

property, that is declared as not null -> In the backend, it doesn’t make sense for a

ConversationMember

to have a null

conversationId

. But the thing is, the API doesn’t always send me every fields serialized (it avoids serializing useless fields depending on the situation). So I have this place where I get the

Conversation

(containing a list of

conversationMembers

) from the backend, but the field

conversationId

is not present at this place for the

conversationMembers

. So when I try to pass this object to the activity and start it, it throws a

java.lang.RuntimeException: Unable to start activity java.lang.IllegalArgumentException: Parameter specified as non-null is null: method kotlin.jvm.internal.Intrinsics.checkParameterIsNotNull, parameter conversationId

How do you deal with that use case? I don’t want to mark this field as nullable, cause at the base it doesn’t make sense, but in the context of api responses with fields restricted to the minimum, the property that I mark as not null could end up being null (not present) in some context.

I've just updated kotlin in my project to 1.2.20 (it used to be 1.1.51, the default for new projects in AS) - should I change my dependency from stdlib-jre7 to stdlib-jdk7 ? and should I even upgrade to Kotlin 1.2 in the first place ?

yes. yes. respectively.

how are u binding the data?

When I have a MutableList, and I want to perform an operation on it like filter, I do something like this:

filteredMembers = members.filter { memberIds.contains(it.id) }.toMutableList()

But I need to do toMutableList() at the end, which sort of seems wrong to me. Is it the right/only way to do?

Anyone here observed this? Seems to be limited to Samsung Galaxy S5 because f*ck developers…

Fatal Exception: java.lang.ExceptionInInitializerError
Caused by java.lang.ArrayStoreException: kotlin.jvm.internal.PropertyReference1Impl cannot be stored in an array of type kotlin.reflect.KProperty[]

Is there a dependency injection framework for Kotlin that works well with Android but also is pretty close to Spring? Dagger 2 seems to be aptly named because it makes me want to poke my eyes out >_<

By the looks of it yes, but shouldn't this be there when creating a new project from the project wizard.

plz send me link if you have any good

Is there a compatibility issue w/ Kotlin 1.2.20 and RoboElectric? I get this error trying to run tests in Android Studio (but it works on the command line via "gradle testXXXX"): Exception in thread "main" java.lang.annotation.AnnotationFormatError: Invalid default: public abstract java.lang.Class org.robolectric.annotation.Config.application() All tests have "@Config(constants = BuildConfig.class, sdk = 21)" Backing down to 1.2.10 and plugin 1.2.10 makes everything run properly again.

That's actually the problem. I actually don't know either android or Java and most resources starts assuming familiarity with one or both.

I have a renamed class and dagger keeps generating a factory for the old file name and therefore destroys my build

Instead of creating <Button> I need to create <ImageButton> 😄

Can you show the code of your custom view? Specifically the constructor

i totally agree with you.. but the emphasize here is on how we can blindly import anything without it’s context!

I have an app that was using alpha 3 of room persistence lib. Now I am trying to move it to 1.0.0 stable but doing so breaks the kaptDebugKotlin task. The weird thing is that this starts happening with room version

1.0.0-beta1

and above. Works fine till

1.0.0-alpha9-1

. Above that, the task always fails with a whole lot of

error: cannot find symbol

for databinding classes. However, I can actually see those generated files in

app/build/generated/source/kapt/prodDebug/...

. I tried building with --stacktrace and --debug but couldn't figure out what to look for in there. Stuck on this for a few hours now. How do I figure out why kapt keeps failing even though code is being generated?

@bachhuberdesign The whole file is pretty big and I might have to redact some stuff before posting here 😅. here are my dependencies though.