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RxKotlin | RxJava bindings for Kotlin | Reactive Programming library

 by   ReactiveX Kotlin Version: 3.0.1 License: Apache-2.0

 by   ReactiveX Kotlin Version: 3.0.1 License: Apache-2.0

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kandi X-RAY | RxKotlin Summary

RxKotlin is a Kotlin library typically used in Programming Style, Reactive Programming applications. RxKotlin has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.
RxJava bindings for Kotlin
Support
Support
Quality
Quality
Security
Security
License
License
Reuse
Reuse

kandi-support Support

  • RxKotlin has a medium active ecosystem.
  • It has 6656 star(s) with 441 fork(s). There are 214 watchers for this library.
  • It had no major release in the last 12 months.
  • There are 19 open issues and 83 have been closed. On average issues are closed in 68 days. There are 7 open pull requests and 0 closed requests.
  • It has a neutral sentiment in the developer community.
  • The latest version of RxKotlin is 3.0.1
RxKotlin Support
Best in #Reactive Programming
Average in #Reactive Programming
RxKotlin Support
Best in #Reactive Programming
Average in #Reactive Programming

quality kandi Quality

  • RxKotlin has 0 bugs and 0 code smells.
RxKotlin Quality
Best in #Reactive Programming
Average in #Reactive Programming
RxKotlin Quality
Best in #Reactive Programming
Average in #Reactive Programming

securitySecurity

  • RxKotlin has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
  • RxKotlin code analysis shows 0 unresolved vulnerabilities.
  • There are 0 security hotspots that need review.
RxKotlin Security
Best in #Reactive Programming
Average in #Reactive Programming
RxKotlin Security
Best in #Reactive Programming
Average in #Reactive Programming

license License

  • RxKotlin is licensed under the Apache-2.0 License. This license is Permissive.
  • Permissive licenses have the least restrictions, and you can use them in most projects.
RxKotlin License
Best in #Reactive Programming
Average in #Reactive Programming
RxKotlin License
Best in #Reactive Programming
Average in #Reactive Programming

buildReuse

  • RxKotlin releases are available to install and integrate.
  • Installation instructions, examples and code snippets are available.
  • It has 2947 lines of code, 328 functions and 24 files.
  • It has high code complexity. Code complexity directly impacts maintainability of the code.
RxKotlin Reuse
Best in #Reactive Programming
Average in #Reactive Programming
RxKotlin Reuse
Best in #Reactive Programming
Average in #Reactive Programming
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RxKotlin Key Features

RxJava bindings for Kotlin

Kotlin Extensions for RxJava

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import io.reactivex.rxjava3.kotlin.subscribeBy
import io.reactivex.rxjava3.kotlin.toObservable

fun main() {

    val list = listOf("Alpha", "Beta", "Gamma", "Delta", "Epsilon")

    list.toObservable() // extension function for Iterables
            .filter { it.length >= 5 }
            .subscribeBy(  // named arguments for lambda Subscribers
                    onNext = { println(it) },
                    onError =  { it.printStackTrace() },
                    onComplete = { println("Done!") }
            )

}

RxKotlin 3.x

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<dependency>
    <groupId>io.reactivex.rxjava3</groupId>
    <artifactId>rxkotlin</artifactId>
    <version>3.x.y</version>
</dependency>

RxKotlin 2.x

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<dependency>
    <groupId>io.reactivex.rxjava2</groupId>
    <artifactId>rxkotlin</artifactId>
    <version>2.x.y</version>
</dependency>

RxKotlin 1.x

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<dependency>
    <groupId>io.reactivex</groupId>
    <artifactId>rxkotlin</artifactId>
    <version>1.x.y</version>
</dependency>

Building with JitPack

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repositories {
    maven { url 'https://jitpack.io' }
}

dependencies {
    implementation 'com.github.ReactiveX:RxKotlin:3.x-SNAPSHOT'
}

SAM Helpers (made obsolete since Kotlin 1.4)

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Observables.zip()
Observables.combineLatest()
Observable#zipWith()
Observable#withLatestFrom()
Flowables.zip()
Flowables.combineLatest()
Flowable#zipWith()
Flowable#withLatestFrom()
Singles.zip()
Single#zipWith()
Maybes.zip()

Data Class with Nullable Parameter in Kotlin 1.5.0 & 1.6.0 Throwing BackendException

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import org.jetbrains.kotlin.gradle.tasks.KotlinCompile

plugins {
    val kotlinVersion = "1.6.0"
    kotlin("jvm") version kotlinVersion
}

repositories {
    mavenCentral()
}

InvocationTargetException with Android Studio Arctic Fox on M1 Apple silicon

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kotlinVersion = '1.4.20'
nstack_version = '3.2.8'

// Library versions
dagger_version = '2.29.1'
leak_canary_version = '1.6.3'
okhttp_version = '4.9.0'
moshi_version = '1.11.0'
retrofit_version = '2.9.0'
lifecycle_version = "2.2.0"
room_version = '2.4.0-alpha04'
work_version = '2.4.0'
navigation_version = '2.3.1'
glide_version = '4.11.0'
billing_version = '3.0.1'
coroutines_version = '1.4.3'
exoplayer_version = '2.14.0'

Organizing Kotlin's Coroutines

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val viewModelTasks = viewModelScope.actor<() -> Unit> {
    for (task in this) {
        task.invoke()
    }
}
val myTask = { doSomeWork() }
viewModelTasks.send(myTask)
val viewModelTasks = viewModelScope.actor<() -> Unit> {
    for (task in this) {
        task.invoke()
    }
}
val myTask = { doSomeWork() }
viewModelTasks.send(myTask)

Could not find android.arch.navigation:navigation-safe-args-gradle-plugin:2.3.5.?

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classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$version_navigation"
// Navigation
implementation "androidx.navigation:navigation-fragment-ktx:$version_navigation"
implementation "androidx.navigation:navigation-ui-ktx:$version_navigation"
classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$version_navigation"
// Navigation
implementation "androidx.navigation:navigation-fragment-ktx:$version_navigation"
implementation "androidx.navigation:navigation-ui-ktx:$version_navigation"

What is the difference between defer() and defer{}

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fun wrapFunctionCall(callback: (Int) -> Int) {
   println(callback(3))
}
wrapFunctionCall(x: Int -> {
  x * x
})

// Most of the time parameter type can be infered, you can then let it go
wrapFunctionCall(x -> {
  x * x
})

// Can omit parameter, and let it be name `it` by default
wrapFunctionCall({
  it * it
})

// wrapFunctionCall accepts a lambda as last parameter, you can pull it outside the parentheses. And as this is the only parameter, you can also omit the parenthesis
wrapFunctionCall {
  it * it
}
fun wrapFunctionCall(callback: (Int) -> Int) {
   println(callback(3))
}
wrapFunctionCall(x: Int -> {
  x * x
})

// Most of the time parameter type can be infered, you can then let it go
wrapFunctionCall(x -> {
  x * x
})

// Can omit parameter, and let it be name `it` by default
wrapFunctionCall({
  it * it
})

// wrapFunctionCall accepts a lambda as last parameter, you can pull it outside the parentheses. And as this is the only parameter, you can also omit the parenthesis
wrapFunctionCall {
  it * it
}

RXKOTLIN/RXJAVA: Communication between the socket using Observables

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//a publish subject which publishes int values
public PublishSubject<Integer> source = PublishSubject.create();
source.onNext(1);
source.onNext(2);
source
    .subscribe(
        {
           //result
        },
        {
           //error
        }
    )
//a publish subject which publishes int values
public PublishSubject<Integer> source = PublishSubject.create();
source.onNext(1);
source.onNext(2);
source
    .subscribe(
        {
           //result
        },
        {
           //error
        }
    )

Android BLE RxKotlin

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// create a BehaviorSubject
var foundDeviceObservable: BehaviorSubject<BluetoothDevice> = BehaviorSubject()

// call onNext() to send new found device
foundDeviceObservable.onNext(foundDevice)

// do your logic use foundDeviceObservable
foundDeviceObservable.subscribe(...)

RxKotlin COUNT with GROUP BY and return a list

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source.groupBy { it }
.flatMapSingle { g -> g.count().map { Pair(g.getKey(), it) } }
.toSortedList { a, b -> b.second.compareTo(a.second) }
.subscribe { list -> println(list) }

What is Impl file and under what conditions is the Impl file automatically generated?

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1. Connect to database (In case of android, need to use SQLiteOpenHelper)
2. prepare the query to be executed
3. execute query and receive result
4. build a model from received result (In your case ToDo)

How to refresh the JWT token before calling the REST API in android? (Retrofit, Rx)

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OkHttpClient.Builder()
    .authenticator(object: Authenticator {
        override fun authenticate(route: Route?, response: Response): Request? {
            if(response.code == 401) {
                // build retrofit client manually and call refresh token api
                val refreshTokenService = retrofitClient.create(RefreshTokenService::class.java)
                val refreshTokenResponse = refreshTokenService.refreshToken().execute()
                val token = refreshTokenResponse.body().token
                return response.request.newBuilder().header("Authorization", token).build()
            } else {
                return response.request
            }                
        }
    })

Community Discussions

Trending Discussions on RxKotlin
  • A failure occurred while executing org.jetbrains.kotlin.gradle.internal.KaptWithoutKotlincTask$KaptExecutionWorkAction?java.lang.reflect.Invocation?
  • Data Class with Nullable Parameter in Kotlin 1.5.0 &amp; 1.6.0 Throwing BackendException
  • InvocationTargetException with Android Studio Arctic Fox on M1 Apple silicon
  • Organizing Kotlin's Coroutines
  • Could not find android.arch.navigation:navigation-safe-args-gradle-plugin:2.3.5.?
  • What is the difference between defer() and defer{}
  • RXKOTLIN/RXJAVA: Communication between the socket using Observables
  • Error inflating class android.webkit.WebView
  • Android BLE RxKotlin
  • RxKotlin COUNT with GROUP BY and return a list
Trending Discussions on RxKotlin

QUESTION

A failure occurred while executing org.jetbrains.kotlin.gradle.internal.KaptWithoutKotlincTask$KaptExecutionWorkAction?java.lang.reflect.Invocation?

Asked 2022-Mar-06 at 10:01

when I run android application in real device I am getting following gradle errors

Execution failed for task ':common:kaptDebugKotlin'.
> A failure occurred while executing org.jetbrains.kotlin.gradle.internal.KaptWithoutKotlincTask$KaptExecutionWorkAction
   > java.lang.reflect.InvocationTargetException (no error message)

below my app.gradle

    plugins {
    id 'com.android.application'
    id 'kotlin-android'
}
apply plugin: 'androidx.navigation.safeargs.kotlin'
apply plugin: 'kotlin-kapt'

apply from: '../commons.gradle'

android {
    compileSdkVersion 30
    buildFeatures {

        dataBinding = true

        // for view binding:
        // viewBinding = true
    }

    buildToolsVersion "29.0.3"

    defaultConfig {
        applicationId "com.example.androidcodingchallenge"
        minSdkVersion 21
        targetSdkVersion 30
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        vectorDrawables{
            useSupportLibrary = true
        }

        multiDexEnabled true
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    kotlinOptions {
        jvmTarget = JavaVersion.VERSION_1_8.toString()
    }
}

dependencies {
    implementation project(':data')
    implementation project(':domain')
    implementation project(':presentation')
    implementation project(':remote')
    implementation project(':cache')
    implementation project(':common')
    implementation project(':device')

    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
    implementation 'androidx.core:core-ktx:1.3.2'
    implementation 'androidx.appcompat:appcompat:1.2.0'
    implementation "com.google.android.material:material:$material_version"

    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
    implementation 'androidx.legacy:legacy-support-v4:1.0.0'

    implementation 'androidx.cardview:cardview:1.0.0'
    testImplementation 'junit:junit:4.+'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'

    //navigation component
//    implementation "androidx.navigation:navigation-fragment-ktx:2.3.2"
//    implementation "androidx.navigation:navigation-ui-ktx:2.3.2"

    // UI
    implementation "com.github.bumptech.glide:glide:$glide_version"
    kapt "com.github.bumptech.glide:compiler:$glide_version"

    // Ktx
    implementation "androidx.lifecycle:lifecycle-livedata-ktx:2.3.0"
    implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.3.0'
    implementation "androidx.fragment:fragment-ktx:1.3.0"

    // Navigation
    implementation "android.arch.navigation:navigation-fragment-ktx:$version_navigation"
    implementation "android.arch.navigation:navigation-ui-ktx:$version_navigation"

    //viewpager2
    implementation "androidx.viewpager2:viewpager2:1.0.0"

    implementation 'com.thoughtbot:expandablerecyclerview:1.3'
    implementation 'com.thoughtbot:expandablecheckrecyclerview:1.4'

    //indicator
    implementation 'me.relex:circleindicator:2.1.4'
    //lottie
    implementation "com.airbnb.android:lottie:3.4.1"
    //datastore
    implementation "androidx.datastore:datastore-preferences:1.0.0-alpha06"

    implementation 'androidx.hilt:hilt-navigation-fragment:1.0.0-alpha03'

    //LeakCanary
    debugImplementation "com.squareup.leakcanary:leakcanary-android:$leakcanary_version"

    //Retrofit
    implementation "com.squareup.retrofit2:retrofit:$retrofit_version"
    implementation "com.squareup.retrofit2:converter-gson:$retrofit_version"
    implementation 'com.squareup.okhttp3:logging-interceptor:4.9.0'

    //multidex
    implementation 'com.android.support:multidex:1.0.3'

}

below commons.gradle

apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'
apply plugin: 'dagger.hilt.android.plugin'

androidExtensions {
    experimental = true
}

android {
//    compileSdkVersion Versions.compileSdkVersion
//    buildToolsVersion Versions.buildTool
//    defaultConfig {
//        minSdkVersion Versions.minSdk
//        targetSdkVersion Versions.targetSdk
//        versionCode Releases.versionCode
//        versionName Releases.versionName
//        vectorDrawables.useSupportLibrary = true
//    }
    buildTypes {
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }

    kapt {
        javacOptions {
            // Increase the max count of errors from annotation processors.
            // Default is 100.
            option("-Xmaxerrs", 500)
        }
        // Configure kapt to correct error types for Hilt
        correctErrorTypes true
    }

    buildFeatures{
        dataBinding = true
    }

    kotlinOptions {
        jvmTarget = "1.8"
    }

    lintOptions {
        abortOnError false
    }

    compileOptions {
        targetCompatibility 1.8
        sourceCompatibility 1.8
    }
}

dependencies {
    //Loads packaged libraries in the libs folder
    implementation fileTree(dir: 'libs', include: ['*.jar'])

//    implementation KotlinLibraries.kotlin
//    implementation AndroidLibraries.coreKtx
//
//    implementation Libraries.hilt
//    implementation Libraries.hiltJetpack
//    kapt Libraries.hiltCompiler
//    kapt Libraries.hiltJetpackCompiler
//
//    // For instrumentation tests
//    androidTestImplementation Libraries.hiltAndroidTest
//    kaptAndroidTest Libraries.hiltAndroidTestCompiler
//
//    // For local unit tests
//    testImplementation Libraries.hiltAndroidUnitTest
//    kaptTest Libraries.hiltAndroidUnitTestCompiler
//
//    implementation TestLibraries.androidTestRunner
//    implementation TestLibraries.junit
//    implementation TestLibraries.espresso
//    implementation TestLibraries.espressoContrib

    // Concurrency
    implementation "io.reactivex.rxjava2:rxkotlin:$rxkotlin_version"
    implementation "io.reactivex.rxjava2:rxandroid:$rxandroid_version"


    //Hilt
    implementation "com.google.dagger:hilt-android:$hilt_version"
    kapt "com.google.dagger:hilt-android-compiler:$hilt_version"
    implementation "androidx.hilt:hilt-lifecycle-viewmodel:$hilt_androidx_version"
    kapt "androidx.hilt:hilt-compiler:$hilt_androidx_version"

    // Utils
    implementation "com.jakewharton.threetenabp:threetenabp:$threetenabp_version"


}

below build.gradle file

buildscript {
    ext{
        kotlin_version = "1.4.20"
        version_navigation = "2.3.5"
        hilt_version = '2.31.2-alpha'

        version_navigation = "2.3.5"
        version_lifecycle_extensions = "2.2.0"
        lifecycle_version = "2.2.0"
        hilt_androidx_version = "1.0.0-alpha03"

        material_version = "1.3.0"

        coroutines_version = "1.4.1"

        junit_version = "4.13"

        retrofit_version = "2.9.0"
        okHttp_version = "4.9.0"
        moshi_converter_version = '2.9.0'
        moshi_version = '1.11.0'

        mockwebserver_version = "4.9.0"
        robolectric_version = "4.4"
        mockito_version = "3.5.15"
        google_truth_version = "1.0"
        coroutines_test = "1.3.1"

        room_version = "2.3.0"

        threetenabp_version = "1.2.4"
        leakcanary_version = "2.4"
        timber_version = "4.7.1"

        glide_version = "4.11.0"
        androidsvg_version = "1.4"

        rxkotlin_version = "2.4.0"
        rxandroid_version = "2.1.1"

        google_services_version = "4.3.8"
    }

    repositories {
        google()
        jcenter()
        mavenCentral()
    }
    dependencies {
        classpath "com.android.tools.build:gradle:4.1.1"
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.5.21"
        classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$version_navigation"

        classpath "com.google.dagger:hilt-android-gradle-plugin:$hilt_version"

        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

        classpath "com.google.gms:google-services:$google_services_version"
        classpath 'com.google.firebase:firebase-crashlytics-gradle:2.7.1'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        flatDir {
            dirs 'libs'
        }
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

what I have tried invalide cache restart

followed this issue tracker I have tried all suggested answer overthere it did not solve my problem ,Besides that, I run gradlew clean in android studio and it is giving following errors FAILURE: Build completed with 2 failures.

1: Task failed with an exception.
  • What went wrong: Execution failed for task ':common:kaptDebugKotlin'.

A failure occurred while executing org.jetbrains.kotlin.gradle.internal.KaptWithoutKotlincTask$KaptExecutionWorkAction java.lang.reflect.InvocationTargetException (no error message)

  • Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights. ==============================================================================
2: Task failed with an exception.
  • What went wrong: Execution failed for task ':common:kaptReleaseKotlin'.

A failure occurred while executing org.jetbrains.kotlin.gradle.internal.KaptWithoutKotlincTask$KaptExecutionWorkAction java.lang.reflect.InvocationTargetException (no error message)

  • Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights. ==============================================================================

note that I am using Android Studio Arctic Fox

I want to know where exactly I am making mistake

ANSWER

Answered 2021-Aug-21 at 12:15

I fixed it my problem by updating current kotlin version to latest version and moshi version to 1.12.0

Source https://stackoverflow.com/questions/68867023

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install RxKotlin

Binaries and dependency information for Maven, Ivy, Gradle and others can be found at http://search.maven.org.

Support

Since Kotlin makes it easy to implement extensions for anything and everything, this project has to be conservative in what features are in scope. Intentions to create syntactic sugar can quickly regress into syntactic saccharin, and such personal preferences belong in one's internal domain rather than an OSS library.

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