Nrthugu

Addenda :

I realize problem is related to :

app:visibleGone="@{isLoaded}"

in the following layout :

<layout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:app="http://schemas.android.com/apk/res-auto"

    xmlns:tools="http://schemas.android.com/tools">



    <data>

        <variable

            name="isLoaded"

            type="boolean" />

    </data>



    <FrameLayout

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        tools:context=".ui.MainActivity">



        <android.support.v4.widget.SwipeRefreshLayout

            android:id="@+id/swipe_refresh"

            android:layout_width="match_parent"

            android:layout_height="match_parent">



            <android.support.v7.widget.RecyclerView

                android:id="@+id/list"

                android:layout_width="match_parent"

                android:layout_height="match_parent"

                app:visibleGone="@{isLoaded}" />



        </android.support.v4.widget.SwipeRefreshLayout>



        <include

            layout="@layout/network_state_item"

            app:visibleGone="@{!isLoaded}" />



    </FrameLayout>



</layout>

I have following branch in Bitbucket : https://bitbucket.org/ali-rezaei/tmdb/src/dataBinding/

I get following Kotlin compiler error when I build the project :

e: [kapt] An exception occurred: android.databinding.tool.util.LoggedErrorException: Found data binding errors.

I appreciate if you can help me out.

Here is my project build.gradle :

buildscript {

    ext.kotlin_version = '1.2.60'

    ext.gradle_version = '3.1.4'

    repositories {

        google()

        jcenter()

    }

    dependencies {

        classpath "com.android.tools.build:gradle:$gradle_version"

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

    }

}

And here is my app build.gradle :

apply plugin: 'com.android.application'



apply plugin: 'kotlin-android'



apply plugin: 'kotlin-android-extensions'



apply plugin: 'kotlin-kapt'



androidExtensions {

    experimental = true

}



android {

    compileSdkVersion rootProject.ext.compileSdkVersion

    defaultConfig {

        applicationId "com.sample.android.tmdb"

        minSdkVersion rootProject.ext.minSdkVersion

        targetSdkVersion rootProject.ext.targetSdkVersion

        versionCode 1

        versionName "1.0"



        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"



        dataBinding {

            enabled = true

        }

    }

    buildTypes {

        release {

            minifyEnabled false

            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

        }

    }

}



dependencies {

    implementation fileTree(dir: 'libs', include: ['*.jar'])



    // Support libraries

    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"

    implementation "com.android.support:appcompat-v7:$rootProject.supportLibraryVersion"

    implementation "com.android.support:design:$rootProject.supportLibraryVersion"

    implementation 'com.android.support.constraint:constraint-layout:1.1.3'

    implementation "com.android.support:recyclerview-v7:$rootProject.supportLibraryVersion"



    // Architecture components

    implementation "android.arch.paging:runtime:$rootProject.paging"

    implementation "android.arch.lifecycle:runtime:$rootProject.lifecycle"

    implementation "android.arch.lifecycle:extensions:$rootProject.lifecycle"



    //DataBinding

    kapt "com.android.databinding:compiler:$gradle_version"



    //Gson

    implementation 'com.google.code.gson:gson:2.8.2'



    //Retrofit

    implementation "com.squareup.retrofit2:retrofit:$rootProject.retrofitVersion"

    implementation "com.squareup.retrofit2:adapter-rxjava2:$rootProject.retrofitVersion"

    implementation "com.squareup.retrofit2:converter-gson:$rootProject.retrofitVersion"



    //Dagger

    implementation "com.google.dagger:dagger:$rootProject.daggerVersion"

    kapt "com.google.dagger:dagger-compiler:$rootProject.daggerVersion"

    compileOnly 'org.glassfish:javax.annotation:10.0-b28'

    implementation "com.google.dagger:dagger-android:$rootProject.daggerVersion"

    implementation "com.google.dagger:dagger-android-support:$rootProject.daggerVersion"

    kapt "com.google.dagger:dagger-android-processor:$rootProject.daggerVersion"



    // Network

    implementation 'com.squareup.okhttp3:logging-interceptor:3.10.0'

    implementation "com.github.bumptech.glide:glide:$rootProject.glideVersion"

    kapt "com.github.bumptech.glide:compiler:$rootProject.glideVersion"



    //Butter knife

    implementation "com.jakewharton:butterknife:$rootProject.butterknifeVersion"

    kapt "com.jakewharton:butterknife-compiler:$rootProject.butterknifeVersion"



    //Timber

    implementation 'com.jakewharton.timber:timber:4.5.1'



    testImplementation 'junit:junit:4.12'

    androidTestImplementation 'com.android.support.test:runner:1.0.2'

    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

}

As a sample you can look at : https://www.moveoapps.com/blog/how-to-use-data-binding-library-with-kotlin-a-step-by-step-guide/

Problem will be solved by creating following method as a Kotlin file in the project :

  @BindingAdapter("visibleGone")

  fun View.visibleGone(visible: Boolean) {

      visibility = if (visible) View.VISIBLE else View.GONE

  }