kotlinlang #android

Hi all I created a "Virtual DOM" for Android views, that works well with a Single Activity Architecture and Functional Reactive Programming https://github.com/robinchew/mvil. Feedback welcomed. Thread in #general

Santhosh

10/28/2018, 4:48 PM

i am to trying to implement tenorflow in android application..but getting error like "A problem occurred configuring project ':TensorFlow-Android-Inference'."

stackoverflow 7

Santhosh

10/28/2018, 4:49 PM

i have tried many things..but not solved....Please give idea

lawlorslaw

10/29/2018, 2:08 AM

i released my first Kotlin app

Pitted

to beta https://play.google.com/apps/testing/com.etiennelawlor.pitted

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Get daily surf reports from your favorite California beaches. Check out the swell, wind, tides, and water temperature before paddling out.

Check it out if you are interested.

Daniel

10/29/2018, 7:57 PM

Sorry if this was asked already, but how do I enable the new progressive mode in an android project?

Paul Woitaschek

10/29/2018, 8:05 PM

How do I suppress compiler warnings?

Paul Woitaschek

10/29/2018, 8:06 PM

I want to use

allWarningsAsErrors

but I have a generated moshi class that uses

java.lang.Integer

and I want to suppress that as I can't change it.

Tobi

10/29/2018, 8:16 PM

What is the currently recommended ProGuard configuration for and Android project using Kotlin (still 1.2.71)? https://stackoverflow.com/questions/53052721/how-to-configure-proguard-for-an-android-release-build-with-kotlin

✔️ 1

yuriy.stetsyk

10/29/2018, 8:35 PM

Hello guys! Did anybody ran into similar problem? Seems to be an inline compiler problem. Coroutines version: 0.24.0, Kotlin 1.2.71 https://gist.github.com/zamahaka/10c90a184d69d086e35ad7af49996b84

noone

10/29/2018, 11:56 PM

Hi guys can we exchange information from device to device like for example os version and device type via NFC or something else?

stackoverflow 9

Suraj

10/30/2018, 6:20 AM

hello folks, I was trying to understand

internal

modifier and found that visibility is restricted to a module. And definition of module in context of gradle as per doc is :

a Gradle source set (with the exception that the test source set can access the internal declarations of main);

a)What does

gradle source set

mean? Does it mean a gradle module or some subset of it? b)Do we have any advantages of using internal in a multi module project? like reduces incremental build time or so?

nemi

10/30/2018, 12:16 PM

Ran into an issue with butterknife and kotlin 1.3 (though the example is kinda silly). Stripped down to the bare minimum here is the setup Simple android project with on app and one library module using butterknife. The library module has the following class

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class Foo {
    @BindView(R2.id.someText) @JvmField var someText: TextView? = null

    fun bind(activity: Activity) {
        ButterKnife.bind(this, activity)
        requireNotNull(someText)
    }
}

The app module has a single activity with the following onCreate

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override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)
    Foo().bind(this)
}

When running this “app” it will crash with an `IllegalArgumentException`as the

someText

field is going to be null. The generated

Foo_ViewBinding

uses the following piece of code to bind

someText

target.someText = Utils.findOptionalViewAsType(source, 2131492945, "field 'someText'", TextView.class);

2131492945 is the value of

R.id.someText

nemi

10/30/2018, 12:23 PM

However the following doing the same in java works correctly

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public class Bar {
    @BindView(R2.id.someText) TextView someText;

    public void bind(@NotNull Activity activity) {
        ButterKnife.bind(this, activity);
        if(someText == null) throw new IllegalStateException();
    }
}

nemi

10/30/2018, 12:30 PM

The issue is that the stub generated for

Foo

when building with 1.2.71 looks like this

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public final class Foo {
    @org.jetbrains.annotations.Nullable()
    @butterknife.BindView(value = hu.nemi.binder.R2.id.someText)
    public android.widget.TextView someText;
    
    public final void bind(@org.jetbrains.annotations.NotNull()
    android.app.Activity activity) {
    }
    
    public Foo() {
        super();
    }
}

Where as with 1.3.0 it looks like this

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public final class Foo {
    @org.jetbrains.annotations.Nullable()
    @butterknife.BindView(value = 2131492945)
    public android.widget.TextView someText;
    
    public final void bind(@org.jetbrains.annotations.NotNull()
    android.app.Activity activity) {
    }
    
    public Foo() {
        super();
    }
}

Notice the annotation on the

someText

field

nemi

10/30/2018, 1:08 PM

https://youtrack.jetbrains.net/issue/KT-27334 this seems to be the same issue but with affected version 1.2.71 with which I have not had issues 🤔

bolot

10/30/2018, 4:44 PM

try

testImplementation "io.mockk:mockk:1.8.9.kotlin13"

bolot

10/30/2018, 4:45 PM

note the

.kotlin13

at the end

bolot

10/30/2018, 4:45 PM

(if you're targeting Kotlin 1.3)

ivano

10/30/2018, 4:46 PM

error message Failed to resolve: org.jetbrains.kotlinkotlin reflect1.3.0-rc-80

uhe

10/30/2018, 4:46 PM

I think it's broken, see #mockk

ivano

10/30/2018, 4:46 PM

so can we downgrade?

ivano

10/30/2018, 4:47 PM

which number can i use then?

uhe

10/30/2018, 4:48 PM

you can use 1.8.9 with kotlin 1.2.71 just fine

ivano

10/30/2018, 4:54 PM

ok thank

nick

10/30/2018, 8:33 PM

The jre8 artifact doesn’t appear to be on maven

nick

10/30/2018, 8:34 PM

It looks like data-bindings depend upon it (both 3.1.3 and 3.1.4)?

nick

10/30/2018, 8:34 PM

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com.android.databinding:compiler:3.1.3
     +--- com.android.databinding:compilerCommon:3.1.3
     |    +--- com.android.databinding:baseLibrary:3.1.3
     |    +--- org.antlr:antlr4:4.5.3
     |    +--- commons-io:commons-io:2.4
     |    +--- com.googlecode.juniversalchardet:juniversalchardet:1.0.3
     |    +--- com.google.guava:guava:22.0
     |    |    +--- com.google.code.findbugs:jsr305:1.3.9
     |    |    +--- com.google.errorprone:error_prone_annotations:2.0.18
     |    |    +--- com.google.j2objc:j2objc-annotations:1.1
     |    |    \--- org.codehaus.mojo:animal-sniffer-annotations:1.14
     |    +--- com.squareup:javapoet:1.8.0
     |    +--- org.jetbrains.kotlin:kotlin-stdlib-jre8:1.2.0 -> 1.3.0 FAILED
     |    +--- com.google.code.gson:gson:2.7
     |    \--- com.android.tools:annotations:26.1.3
     +--- com.android.databinding:baseLibrary:3.1.3
     +--- org.jetbrains.kotlin:kotlin-stdlib-jre8:1.2.0 -> 1.3.0 FAILED
     +--- commons-io:commons-io:2.4
     +--- commons-codec:commons-codec:1.6
     +--- org.antlr:antlr4:4.5.3
     \--- com.googlecode.juniversalchardet:juniversalchardet:1.0.3

nick

10/30/2018, 8:43 PM

Hmm the google sample code for databindings seems to update fine to 1.3 (https://github.com/googlesamples/android-databinding). Must be something wonky in my projects gradle settings. Nevermind!

darkmoon_uk

10/30/2018, 8:48 PM

If you use Dagger with Kotlin, please upvote the addition of 'Incremental Annotation Processing' to

kapt

, lack of which is currently preventing Kotlin projects benefiting from the latest incremental features in both Gradle and Dagger2: https://youtrack.jetbrains.com/issue/KT-23880 Posted in #dagger