Enable Kotlin and upgrade Java compile/target version for utils

Author: tuancoltech

app/build.gradle

@@ -1,3 +1,6 @@
+plugins {
+    alias(libs.plugins.kotlin.android)
+}
 apply plugin: 'com.android.application'
 apply plugin: 'org.ajoberstar.grgit'
 
@@ -32,6 +35,9 @@ android {
         sourceCompatibility = JavaVersion.VERSION_17
         targetCompatibility = JavaVersion.VERSION_17
     }
+    kotlinOptions {
+        jvmTarget = '17'
+    }
 }
 
 dependencies {
@@ -56,6 +62,8 @@ dependencies {
 
     // Room components
     implementation(libs.androidx.room.runtime)
+    implementation libs.androidx.core.ktx
+    implementation libs.androidx.lifecycle.viewmodel.ktx
     annotationProcessor(libs.androidx.room.compiler)
     androidTestImplementation(libs.androidx.room.testing)
 

gradle/libs.versions.toml

@@ -14,6 +14,9 @@ lifecycleExtensions = "2.2.0"
 room = "2.4.2"
 androidXJunit = "1.1.3"
 androidXEspresso = "3.4.0"
+coreKtx = "1.15.0"
+lifecycleViewmodelKtx = "2.2.0"
+kotlin = "2.1.10"
 
 [libraries]
 elimu-model = { group = "com.github.elimu-ai", name = "model", version.ref = "elimuModel" }
@@ -35,5 +38,8 @@ androidx-espresso = { group = "androidx.test.espresso", name = "espresso-core",
 retrofit = { group = "com.squareup.retrofit2", name = "retrofit", version.ref = "retrofit" }
 retrofit-gson = { group = "com.squareup.retrofit2", name = "converter-gson", version.ref = "retrofit" }
 junit = { group = "junit", name = "junit", version.ref = "junit" }
+androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
+androidx-lifecycle-viewmodel-ktx = { group = "androidx.lifecycle", name = "lifecycle-viewmodel-ktx", version.ref = "lifecycleViewmodelKtx" }
 
 [plugins]
+kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }

utils/build.gradle

@@ -1,6 +1,7 @@
 plugins {
     id 'com.android.library'
     id 'maven-publish'
+    alias(libs.plugins.kotlin.android)
 }
 
 android {
@@ -21,14 +22,18 @@ android {
         }
     }
     compileOptions {
-        sourceCompatibility JavaVersion.VERSION_11
-        targetCompatibility JavaVersion.VERSION_11
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
+    }
+    kotlinOptions {
+        jvmTarget = '17'
     }
 }
 
 dependencies {
     implementation(libs.elimu.model) // See https://jitpack.io/#elimu-ai/model
-    implementation(libs.elimu.analytics) // See https://jitpack.io/#elimu-ai/analytics
+    implementation(libs.elimu.analytics)
+    implementation libs.androidx.core.ktx// See https://jitpack.io/#elimu-ai/analytics
 }
 
 // See https://docs.gradle.org/current/dsl/org.gradle.api.publish.maven.MavenPublication.html