add Kotlin dependencies

Author: lucasribolli

ui/espresso/RecyclerViewSample/app/build.gradle

@@ -16,6 +16,10 @@
 
 apply plugin: 'com.android.application'
 
+apply plugin: 'kotlin-android'
+
+apply plugin: 'kotlin-android-extensions'
+
 android {
     compileSdkVersion 30
     buildToolsVersion rootProject.buildToolsVersion
@@ -40,15 +44,24 @@ android {
     }
 }
 
+tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).all {
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+}
+
 dependencies {
     // App dependencies
     implementation 'androidx.annotation:annotation:' + rootProject.androidxAnnotationVersion;
     implementation 'androidx.recyclerview:recyclerview:' + rootProject.androidxRecyclerVersion;
     implementation 'androidx.multidex:multidex:2.0.1'
 
     // Testing-only dependencies
+    androidTestImplementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlinVersion";
     androidTestImplementation 'androidx.test:core:' + rootProject.coreVersion;
+    androidTestImplementation 'androidx.test:core-ktx:' + rootProject.coreVersion;
     androidTestImplementation 'androidx.test.ext:junit:' + rootProject.extJUnitVersion;
+    androidTestImplementation 'androidx.test.ext:junit-ktx:' + rootProject.extJUnitVersion;
     androidTestImplementation 'androidx.test:runner:' + rootProject.runnerVersion;
     androidTestImplementation 'androidx.test.espresso:espresso-core:' + rootProject.espressoVersion;
     androidTestImplementation 'androidx.test.espresso:espresso-contrib:' + rootProject.espressoVersion;

ui/espresso/RecyclerViewSample/build.gradle

@@ -17,6 +17,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
+    ext.kotlinVersion = "1.6.10"
     ext.agpVersion = "7.3.0-alpha07"
     repositories {
         // Insert local test repo here
@@ -25,6 +26,7 @@ buildscript {
     }
     dependencies {
         classpath "com.android.tools.build:gradle:$agpVersion"
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion"
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files