kotlinlang #android

@radityagumay And why's that? It's pretty straight forward that when you don't want to leak something, you use weak references. If you don't want to reference contexts, use handlers and post messages to main thread.

leodeleon

06/17/2017, 12:40 PM

@BindString(R.string.favorites) internal var favorites: String? = null

leodeleon

06/17/2017, 2:32 PM

I tried without the

view

no success

leodeleon

06/17/2017, 8:47 PM

https://github.com/leodeleon22/PopularMovies/tree/master/app/src/main/java/com/leodeleon/popmovies

👍 4

nhaarman

06/18/2017, 8:40 AM

Note it still uses

findViewById

instead of

_$_findCachedViewById

. Is it a bug? Or is there something else going on with view classes? The Activity generated code does use the proper method.

bodo

06/18/2017, 8:46 AM

Hi. I am using "kotlin-android-extensions" in my apps. Now i focused a problem when the layout file is declared i another module, e.g. MODULE-A -> fragment_recyclerview MODULE-B -> Fragment which uses this layout file The import ist made correct (in Fragment of Module B): import kotlinx.android.synthetic.main.fragment_recyclerview.contentView But if i want to run the app the comiler throws this error: Unresolved reference: fragment_recyclerview Unresolved reference: contentView So my question: Is it not possible to access layout ids from layout files of different modules with android extensions?

kartikpatodi

06/18/2017, 12:58 PM

@here I need some advice I am learning android development and I am confused which language should i prefer for backend python or php. I know some python but zero knowlege of PHP

vickyc

06/18/2017, 2:01 PM

Hi! I just launched Kotlin Kōans, an app to help developers learn Kotlin through a series of 40+ short coding challenges (credits for the content go to Jetbrains). If you're in the process of learning Kotlin, take a look! Play store: https://play.google.com/store/apps/details?id=me.vickychijwani.kotlinkoans Demo: http://i.imgur.com/UTmcU39.gifv Code: https://github.com/vickychijwani/kotlin-koans-android Feedback is welcome 🙂

👏 15

wilburt

06/18/2017, 11:35 PM

Is there plug-in to generate parcellables in Kotlin like in former java POJO classes?

gildor

06/19/2017, 6:18 AM

@Loránd Inner classes in Kotlin by default work as static inner in java, so no implicit reference. To create inner class with implicit parent reference you should add “inner” modifier to a inner class

❤️ 3

gildor

06/19/2017, 7:50 AM

@louiscad Try to install plugin manually (download zip file and install - https://plugins.jetbrains.com/plugin/6954-kotlin)

marcinmoskala

06/19/2017, 9:41 AM

I would like to announce, that Packt publishing started distribution of new book "Android Development with Kotlin" by @igor.wojda and @marcinmoskala. We've been working on this book for last 12 months. Book is mainly addressed to Android developers who wants to migrate into Kotlin and explore it’s potential. https://www.packtpub.com/application-development/android-development-kotlin

👍 2

06/19/2017, 2:11 PM

so you won't be able to upgrade it through the normal means (which could potentially break compatibility)

radityagumay

06/20/2017, 5:28 AM

Hi, anyone have solve this issus? kotlin version that is used for building with gradle (1.1.2-5) differs from the one bundled into the IDE plugin (1.1.2-4) i am using AS 3.0 Canary 4

vivekneel

06/20/2017, 5:55 AM

Anyone was successfully able to use dagger in project which uses both java and kotlin? I'm not able to inject in kotlin classes

morozov

06/20/2017, 9:01 AM

In this code i need to write

return true

My function:

override fun onBackPressed(): Boolean {
        if (amountCalculator?.visible ?: false)
            amountCalculator?.let { it.toggle(presenter.goal.amount) }
        else if (initialBalanceCalculator?.visible ?: false)
            initialBalanceCalculator?.let { it.toggle(presenter.goal.initialBalance) }
        else return false
        return true
    }

😲 2

dathoang.se

06/20/2017, 9:15 AM

Anyone encountering “unresolved reference: databinding” issue when using kotlin + databinding in Android? “Error:(8, 38) Unresolved reference: databinding Error:(15, 35) Unresolved reference: ActivitySignupBinding”

morozov

06/20/2017, 9:48 AM

@menegatti i m not sure)

trevjones

06/20/2017, 5:11 PM

check that your import is for a supportv4 fragment not the android app fragment

👍 2

btilbrook-nextfaze

06/20/2017, 11:53 PM

I can’t seem to disable Kotlin incremental compilation on a Gradle build. I’m using

1.1.3-eap-85

and `com.android.tools.build:gradle:3.0.0-alpha4`:

./gradlew -Pkotlin.incremental=false clean assembleRelease
./gradlew -Pkotlin.incremental=false assembleRelease // Prints "Using kotlin incremental compilation"

My goal is to disable it for CI builds, preferably without having to configure the CI environment globally by using special

~/.gradle/gradle.properties

configuration.

sidharthanil

06/21/2017, 7:58 AM

But when I tried to convert it looked like ``` val httpClient = OkHttpClient.Builder() httpClient.addInterceptor(object : Interceptor() { @Throws(IOException::class) fun intercept(chain: Interceptor.Chain): Response { val original = chain.request() // Request customization: add request headers val requestBuilder = original.newBuilder() .addHeader("Cache-Control", "no-cache") .addHeader("Cache-Control", "no-store") val request = requestBuilder.build() return chain.proceed(request) } }) val client = httpClient.build()

lovis

06/21/2017, 10:00 AM

when(viewID) {
    R.id.some -> fun3()
}

...
fun fun3() { 
  fun1()
  fun2()
}

👍 2

😉 2

sikanderbhutto

06/21/2017, 10:45 AM

how to TextView textView in kotlin

Paul Woitaschek

06/21/2017, 1:11 PM

@karelpeeters the issue is completely vague. It just talks about a plan.

wesjon

06/21/2017, 1:32 PM

Hi there. Is anyone also having issues with the layout editor on AS 3.0 not rendering customViews written in Kotlin? I've filed an issue but didn't get any reply yet

szymen

06/21/2017, 4:30 PM

Is there any library, which contains many useful viewgroups extensions? I mean extensions like showed in this presentation:

https://www.youtube.com/watch?v=fPzxfeDJDzY▾

vivekneel

06/21/2017, 10:59 PM

Hi , What's wrong with this data class?

@Entity(
        tableName = "template"
)
data class ListTemplate (
        @PrimaryKey(autoGenerate = true) var id: Long = 0L,
        @SerializedName("name") var name: String = "",
        @SerializedName("thumbnail") var thumbnail: String=  "",
        @SerializedName("category") var category: String = "",
        @SerializedName("totalAmount") var totalAmount: Long = 0L,
        @SerializedName("currency") var currency: String = ""
)

studio is throwing an error saying

Error:Type of the parameter must be a class annotated with @Entity or a collection/array of it.

sikanderbhutto

06/22/2017, 6:44 AM

checkBox.setOnCheckedChangeListener

chanzmao

06/22/2017, 10:22 AM

apply plugin: ‘kotlin-android’ apply plugin: ‘kotlin-android-extensions’ apply plugin: ‘kotlin-kapt’

aakaashjois

06/22/2017, 4:54 PM

Hey! Like how

Snackbar

class has a static function

make

which allows us to create a

Snackbar

, can I use Kotlin extension function on the

Snackbar

class to create a static method similar to

make

Title

aakaashjois

06/22/2017, 4:54 PM

Hey! Like how

Snackbar

class has a static function

make

which allows us to create a

Snackbar

, can I use Kotlin extension function on the

Snackbar

class to create a static method similar to

make

radityagumay

06/22/2017, 6:23 PM

aakaashjois: Yes

aakaashjois

06/22/2017, 6:41 PM

Can you please tell me how I can do that?

kirillrakhman

06/22/2017, 8:50 PM

You can do that for kotlin classes that have companion objects by writing extension functions for the companion object. You can't do that for Java classes

aakaashjois

06/23/2017, 3:56 AM

Thank you! I wanted to do it for the Snackbar class. I hope this feature gets implemented in the future for Java classes as well.

pablisco

07/07/2017, 1:16 PM

https://youtrack.jetbrains.com/issue/KT-11968

radityagumay

08/19/2017, 5:35 PM

fun Snackbar.something(){ // doing what you want }

View count: 7