kotlinlang #android

Is there a way to profile (https://intellij-support.jetbrains.com/hc/en-us/articles/207241235-Reporting-performance-problems#capture_slow_startup_2019_2) Android Studio on Windows? Need for kotlin-related issue (kts autocomplete). For me, "Start async profiler" option is grayed out, pressing "Enable async profiler" throws

Can't attach profiler agent dynamically. Please try to enable it persistent

. Adding provided flags to vmoptions causes studio to just flat out not start.

voben

07/01/2019, 2:30 PM

Android studio(v 3.4.1) refuses to recognize the

Livedata.observe()

extension, and whenever I do a ‘go to declaration’, it keeps taking me to the java LiveData observe function. How do I get it to recognize the kotlin extension and highlight it in yellow? Already tried invalidate cache and restart

Drew Hamilton

07/01/2019, 7:41 PM

implementation project(':mysdk')

voben

07/01/2019, 7:44 PM

.kts notation:

implementation(project(":mysdk"))

The advantage of using kts is you get autocomplete, so you should see it autocomplete working as you type

TheDukerChip

07/02/2019, 1:54 PM

What should I do to receive SIP calls even when app is in background, exits or restarts? Currently we're running a foreground service with sticky notification to keep connected with our sip server. This solution isn't completely working Please help me to achieve this, Thanks in advance! Question asked in StackOverflow https://stackoverflow.com/questions/56854350/unable-to-receive-sip-calls-when-app-is-killed

:stackoverflow: 4

:google: 4

Joan Colmenero

07/02/2019, 3:01 PM

What's the difference between :

interface BasePresenter<in T : BaseView> {
    fun attachView(view: T)
}

And

interface BasePresenter<T> {
    fun attachView(view: T)

kevin.cianfarini

07/03/2019, 12:02 AM

Does anyone have any tips of wrapping a

LiveData

in a

Flow

or using flow in instead of Livedata?

goku

07/03/2019, 11:50 PM

I’m curios why this hasn’t been reported/starred by more people. Every time I start emulator at work, and come home to continue the work, emulator loses Wifi connection and I have to restart the emulator. Does it happen to you at all? https://issuetracker.google.com/issues/132825448

rkeazor

07/04/2019, 1:22 AM

Just restart the emulator , it saves a snapshot lol

Tuan Kiet

07/04/2019, 5:56 AM

is there any Interceptor equivalent in Ktor like OkHttp?

Joan Colmenero

07/04/2019, 1:44 PM

Let me know if someone that is used to unit testing can help me out I wrote it down on #mockk, but couldn't get an answer, it's about how to test an MVP app using usecase repository and presenter, or at least which methods do I have to test, thanks 😄

lawlorslaw

07/04/2019, 3:37 PM

what is the best way to override a getter in data class? i came across this post https://code.luasoftware.com/tutorials/kotlin/override-getter-for-data-class/

Lukas Anda

07/04/2019, 9:37 PM

Hey guys, does anyone know why code in my subscribe() is not called ? Also note that this code is executed inside service that is independent of app

RxJava.kt

ubu

07/05/2019, 11:31 AM

Hi there. I have trouble updating Kotlin from

1.2.71

1.3.10

in Android Studio

3.4.

I get unresolved references for all

RxJava

dependencies. Then I get a popup message in AndroidStudio saying: '../StudioProjects/FuraReloaded/build.gradle': 34: only buildscript {} and other plugins {} script blocks are allowed before plugins {} blocks, no other statements are allowed. Here's my

build.gradle

file: https://gist.github.com/uburoiubu/9378f28fd77d46ed27b12ff34ed3a8ff Any help will be appreciated.

Jan

07/05/2019, 12:09 PM

hi guys how do i keep proguard/r8 from stripping annotation information? @Deprecated(message = "Reduce release string generation: use logi{ message }", replaceWith = ReplaceWith("logi{ message }", "net.kibotu.logger.Logger.logi"))

lenqnr

07/05/2019, 12:13 PM

I have a

DialogFragment

that calls a `ViewModel`'s method, and the method calls a suspending method via

viewModelScope.launch

. The problem is, when I click OK button on the dialog, I get

kotlinx.coroutines.JobCancellationException: Job was cancelled

error message and the suspending method doesn't work. How can I overcome this problem? I moved the method to my

MainViewModel

and accessed it with

sharedViewModel

, but still the same

JobCancellationException

occured.

alec

07/05/2019, 2:09 PM

use the

execute

methods instead of

asObservable

itnoles

07/06/2019, 2:16 AM

"For example, repeated copying between new collection instances can impact GC performance, and calling a method that accepts non-null types adds a method call for the null check (though you can disable runtime null checks in the compiler with -Xno-param-assertions)." so it is okay to use it on Android's app build.gradle?

Darrinps

07/06/2019, 8:18 PM

Does anyone know how to use the BleGattCoroutines notifications? I can't find any example of it. Normally you'll have a BluetoothGattCallback to intercept a notification change and can read the data there. Don't see how this is done with BleGattCoroutines though.

ti4n

07/07/2019, 4:01 AM

Does anyone use room with coroutines and paging library? If I make the dao's function suspend, it's return type can't be DataSource.Factory

Joan Colmenero

07/07/2019, 9:23 AM

Just posted a question about room in stackoverflow, it's about an M:N relationship, if you know or have worked with it, please ping me, I'm seeing that I'm almost done but I need my last clarification. Thanks!

Slackbot

07/08/2019, 7:07 AM

This message was deleted.

paste

07/08/2019, 11:51 AM

with Kotlin DSL build scripts, is there a way to define the dependency version extras separately in top level build.gradle.kts while still keeping the version update available warnings on the module level build.gradle.kts? I noticed i don't get the outdated dependency version warning anymore which worked before converting from Groovy to Kotlin DSL.

// root build.gradle.kts
buildscript {
  extra.set("androidxMaterialVersion", "1.1.0-alpha06")
  ...
}

// module/app build.gradle.kts
dependencies {
 implementation("com.google.android.material:material:${rootProject.extra.get("androidxMaterialVersion")}")
}

this above is the implementation i'm using btw. the module implementation does not give a (Android Studio) warning saying there is a new version available, which works if it's Groovy

Animesh

07/08/2019, 1:18 PM

Can we send message from our App to Whats App and vice versa ? Does Whats app expose any such API

:google: 2

android.zeeshan

07/08/2019, 9:54 PM

Should I use doAsync or Coroutines with Room ? Which one is better and why ? I have used doAsync with Room that works fine for so far.

ivano

07/09/2019, 10:15 AM

Will jetpack compose become the kotlin web frontend solution, as is aiming ios with swiftUi and swiftWebUi?

🔮 2

android.zeeshan

07/09/2019, 5:18 PM

I am missing logm template in Kotlin. Basically there is no template for logs like in Java. How can I create these ?

Jonny

07/09/2019, 6:05 PM

Hi everyone. I'm pretty much a beginner. Right now I'm moving from intents to using NavigationController. My issue is that when I'm adding arguments, there is no argument for Double.

:google: 2

scottiedog45

07/10/2019, 1:17 AM

Is this the most elegant way to “go back two screens (i.e. two fragments)” if I have a single activity app using the navigation architecture component? Seems extremely strange, but works perfectly (calling this method twice…).

fragmentManager?.popBackStack()
fragmentManager?.popBackStack()

(edited)

Title

scottiedog45

07/10/2019, 1:17 AM

fragmentManager?.popBackStack()
fragmentManager?.popBackStack()

(edited)

Adam Powell

07/10/2019, 1:19 AM

what's the use case for, "go back two screens?" It sounds like you're trying to do something specific but two backs is incidentally correct in that specific circumstance

generally you would navigate to another particular destination, or pop to a certain tag marker

scottiedog45

07/10/2019, 1:23 AM

use case: Screen A is a form, Screen B is a subset of options for the one of the fields, and Screen C is a set of options for one of the options in Screen B. Choosing an option on Screen C should “go back” to screen A, skipping Screen B.

Adam Powell

07/10/2019, 1:24 AM

sounds like you're looking for https://developer.android.com/reference/androidx/navigation/NavController.html#popBackStack(int,%20boolean)

to pop to the specific destination of screen A

scottiedog45

07/10/2019, 1:28 AM

This is exactly what I needed. Thanks 😃

👍 6

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