is there a neat way for populating spinners?

use an adapter

is there a way to enforce a list size in a parameter or property definition without having another class with a toList? I mean something like code contracts in C#

LiveData + Coroutines can be found in

androidx.lifecycle:lifecycle-livedata-ktx:2.2.0-alpha01

(or higher)

perfect, thank you @Manuel Vivo

so i figured the other improts had it

Hi everyone! I've been exploring the new Coroutines/Arch Components integration announced at I/O like Live Data building blocks and LifecycleScope and I've got a chance to write a post about it. Any feedback is appreciated! https://medium.com/corouteam/exploring-kotlin-coroutines-and-lifecycle-architectural-components-integration-on-android-c63bb8a9156f

Hey👋 I've released the first version of Sweep Gson. It provides wrapping/unwrapping behavior for Gson. I actually developed it for our request/response models to ignore unnecessary fields during (de)serialization. https://github.com/SaeedMasoumi/sweep-gson

Hi there. We are having on our CI jobs with Jenkins pipelines the following flow: - Lint APP (compiles a version of the app) - Detekt APP (static analysis) - Unit Test APP (compiles a version of the app) - FIREBASE Ui tests on the APP (compiles a version of the app on different dynamically created agent on aws) - Archive PreProd APP (compiles a version of the app) All this is taking considerable time since the app is compiled several times. Also it's not simple to share the cache among the agents. Question, is there any good practice on how to use the same compiled version to lint, unit test, ui test a flavor of your app? Kind regards!

Hi there! 👋 I’m trying out

kapt.incremental.apt=true

. In the initial tests, looks like my build is slower. Have you tried if successfully? Is it working out for you? Thanks! PS: I’m profiling it with ./gradlew assembleDebug --scan, assuming the benefits will be reflected there. PS2--> I’ve just remembered that if the project has just 1 annotation proccesor that dones’t support incremental, then won’t use it….

Starter code with a new Android project in Kotlin

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
    }
}

I dont understand this construct

class MainActivity : AppCompatActivity()

syntax to extend a class while implementing an interface?

Is this channel for asking Android related questions in kotlin ?

no. it's for Kotlin questions related to Android

ok

is there a channel to ask about Android questions ?

the title contains a link to some other Slack that's for general Android questions, or places like StackOverflow are also appropriate

you can post in stackoverflow...

Has anyone used Dizitart's PotassiumNitrite on Android, and if so, how do you go about opening the database, is starting it in the Application class a good practice?

Following an example from Google sample repos. The went with the first approach which seems less straightforward to me than the latter. I'm curious if there is some situational exception/nuance in which it is preferable to the it the first way

Guys one question about Android Studio and Kotlin. When I am coding in Andriod Studio using Java I'm used to write ".field" to declare properties in the class like: "foobar".field -> Creates an String property in the class. I tried to do this in Kotlin but ide doesn't give me that option.

Hi, i want to implement some data uploading in mvvm acrhitecture

I need more fragments with editTexts and every fragment need data validation before you can switch to the next

Here's my

buildSrc/build.gradle.kts

file:

plugins {
  `kotlin-dsl`
}

kotlinDslPluginOptions {
    experimentalWarning.set(false)
}

repositories {
    jcenter() // this is needed to download dependencies for kotlin-dsl
}

that question is not specific to Kotlin nor Android so I would suggest seeking help in a more general forum such as StackOverflow i guess it was deleted

anyone able to generate UML diagrams for their projects when in Kotlin?

Do I still need to provide a consumer proguard configuration for my libraries written in (and for) Kotlin only? Or is everything taken care of with

META_INF/*.kotlin_module

now?

Been having the following problem working with lambda parameters:

When I set

inline fun <reified A : Activity> run(runner: (A) -> Unit)

And the same with

<reified F : Fragment>

it complains that both have the same JVM signatures. Probably because of the generics, which unfortunately are necessary.