kotlinlang #android

I've got an async thread thing here and it stops prematurely without giving any errors if I edit the UI with it, any ideas what could be the cause? I'm not getting any errors

:stackoverflow: 2

vedran

08/21/2017, 6:07 AM

@joe_androidsecurity you can "avoid" that itemView with

with

, example:

class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
    fun bind(item: Item) = with(itemView) {
        itemTitle.text = item.title
        itemSubtitle.text = item.subtitle
    }
}

👍 3

adinugroho

08/21/2017, 6:36 AM

@joe_androidsecurity Have you implement from LayoutContainer ?

martynas

08/21/2017, 7:22 AM

Could anyone help me with an issue? My AS (2.3.3) can’t see any extension functions that are market

@SinceKotlin("1.1")

and shows compilation errors, but compilation succeeds without any problems. Anyone had and issue like that?

peasee

08/21/2017, 9:39 AM

If you need a lot of logic to bind your view holder, where do people usually put it?

neworldlt

08/21/2017, 9:53 AM

Do anyone know, if class is named

xxx$1$1

, will proguard require

xxx$1

class even

xxx$1$1

doesn’t depend on

xxx$1

tapchicoma

08/21/2017, 6:32 PM

And what android plugin version are you using?

jkiefer

08/21/2017, 7:44 PM

Has anyone built a @StringDef in Kotlin and called it from Java yet? Having some weird lint issues

smuldr

08/22/2017, 8:05 AM

@yperess I just tried to upgrade to AGP 3.0.0-beta2, and I'm running into the same issue with using extension functions across modules. Also an extension on

Context

, by the way 🤔

smilecs

08/22/2017, 8:25 AM

hi guys am going to ask another random question that seems important to me, I have been battling with the question of using retrofit or volley with kotlin and which would be better integrated especially in the point of mvp architecture so any insight or helpful advice on this?

raghuramjampala

08/22/2017, 12:16 PM

So something like SampleObject sampleObject = new Gson().fromJson(sampleObjJson, SampleObject::class.java)

audhil

08/22/2017, 12:44 PM

code changes in kotlin files not getting reflected in app, but in java files. anyone faced and solved?

my versions as follows
kotlin.incremental=false in gradle.props file
kotlin_version = '1.1.4-2'
buildToolsVersion = "25.0.3"
    supportLibVersion = "25.3.1"
    archLifecycleVersion = "1.0.0-alpha1"
    archRoomVersion = "1.0.0-alpha1"

Android Studio 2.3.3
gradle  2.3.3

wasted lot of time to overcome this issue, but could not succeed 😞

r-z

08/22/2017, 2:06 PM

I'm trying to figure out how to build a keyboard backspace like button. So short click for one symbol, hold for x ms for multiple remove symbol actions. Any ideas what kind of a listener should be used?

:stackoverflow: 1

juliocbcotta

08/22/2017, 2:15 PM

So… has anyone played with

@Parcelize

of kotlin 1.1.4 ? I can’t find a complete sample on Google… Kotlin blog has this

@Parcelize
class User(val firstName: String, val lastName: String) : Parcelable

I could make the Parcelize import…but I could not make it compile…AS says I need to implement the Parcelable methods…

Paul Woitaschek

08/22/2017, 10:05 PM

The

as?

says that it will return null if it’s not the correct type

umasankar

08/23/2017, 6:12 AM

Hi guys, i tried to implement websocket in my kotlin based android project, but i didn't found any pretty clear tutorial for this, so could you please help me to find out any clear tutor or guidance.

robinchew

08/23/2017, 8:02 AM

Hey how do you render the

Correct the following errors

https://storage.googleapis.com/material-design/publish/material_v_11/assets/0Bzhp5Z4wHba3dEZTUF9idzBHMWc/patterns_errors_userinput19.png▾

sylcn

08/23/2017, 8:35 AM

Hi Guys 🙂 Is there any sample that shows how to we use arrayadapter viewholder pattern with kotlin ? I googled but every viewholder pattern related with recyclerviewadapter ? Thanks in advance

sylcn

08/23/2017, 8:43 AM

I want to use an arrayadapter in listview

08/23/2017, 6:54 PM

so copy over the 25 ones for now

kevinmost

08/23/2017, 6:57 PM

feels like we need a "don't ask Android questions in here if they have nothing to do with Kotlin" rule... or reaction-emoji or something

ankitdroiddeveloper

08/25/2017, 6:17 AM

Hi All. I have done a small project on Kotlin with Dagger2, RxKotlin and Retrofit2. Please have a look and feedback me. Url is https://github.com/AnkitDroidGit/Dagger2Retrofit2RxKotlinRxAndroidApplication

👍 1

deviant

08/25/2017, 6:41 AM

does anyone expecting issues with AS3 b3? looks like i lost all my plugins 😞

matys

08/25/2017, 10:53 AM

Any idea why AndroidStudio is not downloading sources for my own library published to my own nexus? All the artifacts/sources are there and I can attach them manually, but for whatever reason AS cannot do it by itself. Or maybe I should include sources.jar inside AAR?

ghosalmartin

08/25/2017, 11:13 AM

When using Parcelable sealed classes, do I have to implement Parcelable to each subclass?

trubesv

08/26/2017, 7:20 PM

message has been deleted

ben.slama.jihed

08/27/2017, 11:55 AM

hello , you can find here samle using ocr in kotlin : https://github.com/benslamajihed/android-vision-kotlin-sample

radityagumay

08/27/2017, 12:13 PM

I know, companion is equivalent with static, but you should not use like that. You can use join declaration. If you using kind like view utils, you should using extension function.

budioktaviyan

08/28/2017, 10:36 AM

It is throws an exception like this

Only static methods can be annotated with @DeepLink

Title

budioktaviyan

08/28/2017, 10:36 AM

It is throws an exception like this

Only static methods can be annotated with @DeepLink

gildor

08/28/2017, 10:39 AM

@budioktaviyan Please, show your code. Probably you annotated class method with this annotation.

Try to annotate top level function or move function to companion object and add

@JvmStatic

annotation

budioktaviyan

08/28/2017, 10:41 AM

@DeepLink(SCHEME.plus(SERVICE_PAYMENT))
fun registerServiceDeepLink(context: Context): Intent {}

gildor

08/28/2017, 10:41 AM

Please show more code, it’s just a function declaration

budioktaviyan

08/28/2017, 10:41 AM

I just create this in my class, but suddenly it throws the exception. Previously it was Java class with static function

gildor

08/28/2017, 10:42 AM

As I said, if you need static method, you have two options, I mentioned them above

Kotlin has no static function, you should use top level function (function outside class) or function inside companion object with

@JvmStatic

annotation

budioktaviyan

08/28/2017, 10:43 AM

Yes, I ever do that but it is not working

wait, I will share the complete code

class DeepLinkDispatcher {

    companion object {
        const val SERVICE_PAYMENT = "payment"
        const val SCHEME = "myweb://"
        const val FLAGS_NEW_TASK = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_SINGLE_TOP

        @DeepLink(SCHEME.plus(SERVICE_PAYMENT))
        @JvmStatic
        fun registerServiceDeepLink(context: Context): Intent {
            return Intent(context, clazz<PaymentHomeActivity>()).apply {
                putExtra(PaymentHomeActivity.HomeIntentKey.SOURCE, MyConstants.EventConstants.PROPERTY_VALUE_SOURCE_DEEP_LINK)
                action = DeepLinkKey.ACTION_DEEP_LINK_SERVICE
                flags = FLAGS_NEW_TASK
            }
        }
    }
}

gildor

08/28/2017, 10:49 AM

Oh, yeah, I see, probably it will not work, just because JvmStatic generates one more method, not replaced original one. Maybe better to use top level function

budioktaviyan

08/28/2017, 10:50 AM

I have been do this but it is not working for this lib 😄

hmmm ic

gildor

08/28/2017, 10:50 AM

I’m not sure about my previous statement, but probably it works this way

budioktaviyan

08/28/2017, 10:50 AM

let me try

gildor

08/28/2017, 10:51 AM

Anyway, top level functions is definetely static

budioktaviyan

08/28/2017, 10:52 AM

yeah, I know it :) .. cool its working now

gildor

08/28/2017, 10:53 AM

I’ve checked. Yes, @JvmStatic creates one more method for Java, that proxies call to Companion object, so this lib found also non-static version

Actually it’s interesting case, maybe you should create an issue about it, and someone would propose some solution also for such cases, but probably top level function is good workaround for all cases, I’m not sure

budioktaviyan

08/28/2017, 10:56 AM

yes, I will raised an issue on those lib ASAP 🙂

gildor

08/28/2017, 10:57 AM

Anyway, this lib does everything in correct way, but probably they could add some Kotlin workaround and docs

budioktaviyan

08/28/2017, 10:58 AM

and did you know ? this lib are really helpfull for create a simple deeplink in android hahaha

alex.hart

08/28/2017, 11:01 AM

This would make a great medium post, exploring the compile-time differences between @JVMStatic annotated methods and top-level methods.. because I can guarantee other people will be bitten by this (I learned something today!)

budioktaviyan

08/28/2017, 11:41 AM

Yes, me too, Just know it. Sometimes it can be a little bit different between top-level function and

@JVMStatic

hahahha

https://github.com/airbnb/DeepLinkDispatch/issues/193

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