Hey guys. What do you use for Parcelables? I have a library with some shared models, written in Kotlin. Need to make them parcelables somehow on Android

Stop using --parallel

@neworldlt are you using annotation processing? And which version of gradle and android gradle plugin you are on?

Changing min API to 24 😉

Anyone try

greenDAO

with Kotlin? Looks like it’s not friendly to Kotlin 😒adfrog:

Check out Anko Sqlite https://github.com/Kotlin/anko/blob/master/doc/SQLITE.md I know that it is not ORM, but I implemented first database table just yesterday and I’m happy with it. I love that I have full controll over mapping. I work with Hibernate daily so you know… it’s refreshing 😄

I am going to write an Android app using Kotlin any recommended resources I should read or any skelton projects?

hi pals, does some one know a good orm compatible with kotlin (and gson) (requery make me piss off)

@gildor All right, that worked, thanks! 👍 Just noticed that this Kotlin wrapper library doesn’t depend on mockito android library, probably because it was intended for more general usage.

Quick poll: How do you currently package your classes? 1️⃣ vertically, i.e. classes interacting with each other together, e.g.: https://jakubn.gitlab.io/keepitclean/#29 2️⃣ by type, i.e. all activities in one package, all presenters in another, etc., e.g.: https://jakubn.gitlab.io/keepitclean/#27 3️⃣ I'm hardcore an put everything in one package! e.g.: https://jakubn.gitlab.io/keepitclean/#28 4️⃣ Differently / I'm not sure

what about #28

Hi all. Has anyone tried to use

kotlin-android-extensions

to access synthetic widget properties from another Android library module within the project? In my attempts the IDE imports and autocompletes and resolves the references properly, but the

compileDebugKotlin

build step fails with

Unresolved reference

for the synthetic properties. Does the plugin simply not support such use cases? Sample: https://gist.github.com/justasm/4a75afd5f5f3e6ba0dbc16b5a1e5331b

hey guys, can help me with RxJava + kotlin issue.. I have a list of Observables, and I want to compose them together, so that when each observable emits all it’s items(a finite amount), the composed observable emits onComplete, telling the system it’s done but I can’t seem to infer the type of the .zip() to be Array<TripModel>(in my case)

Does anyone know of a good lightweight reactive library? RxJava is simply to bulky imo.

@samthompson Works for us without problem (kotlin 1.1, kapt3)

Unfortunately documentation about kapt is outdated, i think we will write some kind of blogpost about it

I'm just getting started with Kotlin. Does anyone know how good the Android Studio java to kotlin code convertor is?

If I concat two observables (two retrofit calls) then the onNext is called just only once..and the onComplete() is never called. What am I doing wrong?

Ormlite should work fine then... We're also using it because we want to use gson in the data models instead of having a separate data layer 😛

here is one of my top 3 orms https://github.com/gfx/Android-Orma kotlin ready

@grahamborland

apply

will make

this

point to the View you're inflating, so it's trying to use

shortcuts

as an extension of the newly inflated view instead of the Activity(?) you're in. Try using

this@OuterComponent.shortcuts

inside the apply to reference the same thing you're referencing outside of the apply. (Replace "OuterComponent" with the name of the class you're doing this inside of, obviously)

Nevertheless I don't like overuse of

apply

or

also

and I tend to avoid it unless it makes the code way more readable.

Streams for sure

“We've decided to add support for Java 8 language features directly into the current javac and dx set of tools, and deprecate the Jack toolchain” https://android-developers.googleblog.com/2017/03/future-of-java-8-language-feature.html

Jack looked like a strange idea to me, because all tooling like annotation processing, compiler enhancements (Lombok?), and many others will not work. Javac is great, but it is 20 years old! It would be impossible to create such mature compiler shortly. Support (and Design, Recycler etc) are very good, but their bugs are incredible sometimes. In support 23.2, IIRC, they suddenly included vector drawables which led to instant crash on Android older than Lollipop. Support-v7 version 24 or 25 suddenly became support-v9 (without explicit renaming), dropping API 7 and 8 support. In support-v13, there is FragmentStatePagerAdapter, which really can be used since API 17, where native child-fragments are supported. So, in my opinion, Google generates many questions and dead kittens.

@stepango 1) I never used databinding, cause I don't like to put presentation logic in XML (e.g.

viewModel.counter > 0 ? View.VISIBLE : View.GONE

), but is it not possible to do

android:onClick="@{viewModel::incCounter}"

? (not library related) 2) Would be nice to see an example app also implemented without using your lib to see what problems it solves. I don't like using libs just to use libs, when for example the amount of code stays the same or almost the same, just looks different. 3) Add real tests in lib module. Remove example tests from both modules. I like to first read executable documentation.

(i’m just gonna file it, unless anybody has any quick suggestions)