kotlinlang #android

In Intellij I turned on "delegate IDE build/run actions to gradle" and it works 70% of the times. But this option is not there in Android Studio. Is there another work around?

Hadi Tok

01/30/2019, 8:12 AM

I saw this on reddit. I didn’t know kotlinx synthetic is no longer recommended practice. Does anyone know why it is no longer recomended? https://android-review.googlesource.com/c/platform/frameworks/support/+/882241

🤔 4

👎 1

🧐 1

Brian Mahecha

01/30/2019, 11:48 AM

Morning everyone! How's everyone's experience with Anko been for Android development? Been thinking of starting a project using Anko. Thanks everyone!

Nir Golan

01/30/2019, 12:28 PM

hi guys, i'm using FragmentStatePagerAdapter and everytime the app goes to background i see in onSaveInstanceState the fragments in it, the problem is that every time i go to background i get them added again (4-8-12) and after 12 i get TransactionTooLargeException, can anyone help?

stackoverflow 4

locke

01/31/2019, 3:05 AM

Does anyone know what could possibly cause:

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2019-01-30 22:03:38.844 29960-30028/? W/PackageManager: Failure retrieving text 0x7f0e001b in package com.example.voxcaster
    android.content.res.Resources$NotFoundException: String resource ID #0x7f0e001b
        at android.content.res.Resources.getText(Resources.java:348)
        at android.app.ApplicationPackageManager.getText(ApplicationPackageManager.java:1678)
        at android.content.pm.PackageItemInfo.loadUnsafeLabel(PackageItemInfo.java:204)
        at android.content.pm.PackageItemInfo.loadLabel(PackageItemInfo.java:194)
        at com.google.android.finsky.verifier.impl.ew.d(SourceFile:499)
        at com.google.android.finsky.verifier.impl.ew.u(SourceFile:365)
        at com.google.android.finsky.verifier.impl.ew.a(SourceFile:100)
        at com.google.android.finsky.verifier.impl.go.a(SourceFile:109)
        at com.google.android.finsky.verifier.impl.b.e.a(SourceFile:2)
        at com.google.android.finsky.verifier.impl.b.e.doInBackground(SourceFile:6)
        at android.os.AsyncTask$2.call(AsyncTask.java:333)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.lang.Thread.run(Thread.java:764)

The app is building and installing just fine, but then at runtime the package manager can't find the string resource for the app name? I am very lost as to what could cause that.

nerdstone

01/31/2019, 8:51 AM

Hi, how do you debug RxKotlin? Especially when working with Schedulers that run on a separate thread and is observed on the main thread?

stackoverflow 2

Animesh

01/31/2019, 11:31 AM

Hi, I am getting following issue in unit testing with mokito

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java.lang.IllegalStateException: MyApplication.getInstance() must not be null

here is my function code snipped

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fun Favoritable.isFavorite() : Boolean {
   val user = MyApplication.getInstance().loginManager.loggedInUser
   return isFavorite(user)
}

stackoverflow 3

spierce7

01/31/2019, 6:31 PM

Is it safe to store the Android Application Context in a static variable? Every time I make a library that does this, I get a warning that it's not safe, causes memory leaks, and would break instant run. As long as this is done with an Application Context, I can't think of a reason this wouldn't be ok. Can anyone argue otherwise?

stackoverflow 2

Owen Carpenter

02/01/2019, 2:29 AM

Does anyone know the proper way to programmatically set the pressed state of an image button? I want to press an image button that will create an api call and then stay in a pressed state until receiving the response will take a few seconds. .setPressed from the Android View documentation does not seem to work and the code below does not work

stackoverflow 2

Owen Carpenter

02/01/2019, 2:29 AM

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private fun postData(resource: String, request: Model.Request, view: ImageButton){
        view.setPressed(true)
        disposable = apiService.postData(resource, request)
                .subscribeOn(<http://Schedulers.io|Schedulers.io>())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(
                        { r -> view.setPressed(false)
                            toast("Success")},
                        { e -> toast("Error")}
                )

    }

neuber

02/02/2019, 12:32 AM

Hi, I need help with this (pls

ghedeon

02/02/2019, 2:40 PM

Can we ban this bot or whatever it is 🙂?

🤔 1

egek

02/02/2019, 3:16 PM

I saw something like this today ```val TAG by lazy “ExampleClassTag”```basically he is lazy loading the tag he uses in Log.d, what’s the point of this?

Viktor Vostrikov

02/02/2019, 8:32 PM

Hello, should I be replacing RxJava for coroutines? I need to decrease size of the library, because RxJava takes a lot of space in the Android project... I have written a detailed question in Android Reddit subreddit ( really great community there) https://www.reddit.com/r/androiddev/comments/amfy3f/should_i_switch_rxjava_for_kotlin_coroutines/?utm_source=reddit-android

Brian Mahecha

02/04/2019, 2:54 PM

Morning everyone! Anyone else having issues with their Anko plugin for Android Studio? Keep getting

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java.lang.IllegalArgumentException: argument type mismatch

Whenever I click the Anko Preview tab. Thanks everyone! (edited). Plugin version:

0.10.7-2

and Anko version:

0.10.8

Android-Studio version:

3.3

fradiati

02/05/2019, 7:22 AM

rxjava

Oleh Ponomarenko

02/05/2019, 2:50 PM

Hello guys! What is the better dispatcher in coroutines for background broadcasting some data via Bluetooth? I use "Dispatchers.IO". Is it ok? I've already read this page -https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines/-coroutine-dispatcher/ I just need your advice)

tenprint

02/05/2019, 9:16 PM

Those of you using sealed classes to wrap state, how are you persisting them? (e.g. onSaveInstanceState/onRestoreInstanceState) @alostpacket

dave

02/06/2019, 8:46 AM

hallo guys, have any of you used Android Architecture Components? Would you advice to use it? What's the most commonly used architecture in Android nowadays?

Wouter Vegter

02/07/2019, 2:32 PM

Situation: I have a crash popping up in my crashlytics, where a JobCancellationException is thrown, that has no usable stackstrace. Idea: Now I like to write a specific catch mechanism via Thread.setUncaughtExceptionHandler, so that I can inspect different properties of this JobCancellationException, and add it to the crashlytics crash report. I have tried quite some variations to force a JobCancellationException, but none of them have succeeded. Question: Does anyone know a small android-kotlin codesample that will for sure throw a JobCancellationException? Thanks for reading this!

bryan

02/07/2019, 6:40 PM

Is it safe to call `requireContext()`/`requireActivity()` in a

LiveData

observer?

dewildte

02/07/2019, 11:32 PM

I got the debugger to break on the stable Android Studio version 3.3.1. So there is something definitely wrong with the current Canary.

oday

02/08/2019, 2:15 PM

no way in hell to get that shortcut to work unless the Run menu is physically open when you press it

emma

02/08/2019, 5:03 PM

we have over 100 gradle modules and it's really taking a toll on our build times, it affects incrementals too

😕 3

Davide Giuseppe Farella

02/09/2019, 4:39 AM

Could a

sealed class

be a good option for an abstract

Fragment

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sealed class BaseFragment: Fragment()

abstract class RootFragment: BaseFragment()
abstract class NestedFragment: BaseFragment()

mvbrenes

02/10/2019, 10:14 PM

For a while now trying to use the latest version (2.1.0)

Mockito-Kotlin

has been a pain if you are using the Android

Jetitfier

. The library relies on a version of Mockito which has an updated version (1.9.0) of

Byte-buddy

who is the real culprit here. I was able to resolve this by adding:

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android.jetifier.blacklist=byte-buddy

to my

gradle.properties

file, now i can happily move on without forcing certain versions of Mockito or excluding libraries which gets kind of hairy when you have a lot of modules and dependencies. Posting this here in case if helps anyone else 🙂

👍 4

LeoColman

02/11/2019, 10:26 AM

I'd sugest using #mockk instead of mockito-kotlin

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Norbert Flas

02/11/2019, 12:18 PM

Hi I have a problem in android studio,First I have a gradle problem "ERROR: Cause: invalid type code: 68" I try everything whats is in the internet gradle update reinstall android studio and jdk, but only dissable option "Only sync the active variant" "works" after that it's showing to me (look at the picture) with statement "Error: Kotlin: Unsupported plugin option: org.jetbrains.kotlin.android:enabled=true" I updated kotlin plugin and restart android studio and its not working. Please help me 😞

Shane Blackburn

02/11/2019, 8:52 PM

Hi all! I created a Kotlin file in my project that is a data class that colds an array of questions and answers. I can't figure out how to access that array in my main activity! Any ideas? Thanks!

landoulsi

02/12/2019, 7:48 AM

Hey guys, I have a problem: after I migrated to the new multiplatform plugin, I am not able to use

Mockk

library on the common module:

MyTest.kt: (74, 9): Unresolved reference: every

, does any one can help with this ?