Merge pull request #127 from callstack/refactor/android-kotlin

refactor: module android impl from Java to Kotlin

Author: mateusz1913

.github/workflows/main.yml

@@ -42,6 +42,9 @@ jobs:
       - name: Lint files
         run: yarn lint
 
+      - name: Lint Android files
+        run: yarn lint:android
+
       - name: Types check
         run: yarn ts
 

android/build.gradle

@@ -1,19 +1,29 @@
 buildscript {
   repositories {
-    google()
     mavenCentral()
+    google()
   }
 
+  def kotlin_version = rootProject.ext.has('kotlinVersion') ? rootProject.ext.get('kotlinVersion') : project.properties['RNImageEditor_kotlinVersion']
+  def spotless_version = project.properties['RNImageEditor_spotlessVersion']
+
   dependencies {
     classpath "com.android.tools.build:gradle:7.2.1"
+    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    classpath "com.diffplug.spotless:spotless-plugin-gradle:$spotless_version"
   }
 }
 
 def isNewArchitectureEnabled() {
   return rootProject.hasProperty("newArchEnabled") && rootProject.getProperty("newArchEnabled") == "true"
 }
 
+if (project == rootProject) {
+  apply from: 'spotless.gradle'
+}
+
 apply plugin: "com.android.library"
+apply plugin: "kotlin-android"
 
 if (isNewArchitectureEnabled()) {
   apply plugin: "com.facebook.react"
@@ -70,6 +80,9 @@ android {
     sourceCompatibility JavaVersion.VERSION_1_8
     targetCompatibility JavaVersion.VERSION_1_8
   }
+  packagingOptions {
+    resources.excludes += "DebugProbesKt.bin"
+  }
 
   sourceSets {
     main {
@@ -87,9 +100,14 @@ repositories {
   google()
 }
 
+def kotlinx_coroutines_version = getExtOrDefault('kotlinxCoroutinesVersion')
+def androidx_exifinterface_version = getExtOrDefault('androidxExifinterfaceVersion')
+
 dependencies {
   // For < 0.71, this will be from the local maven repo
   // For > 0.71, this will be replaced by `com.facebook.react:react-android:$version` by react gradle plugin
   //noinspection GradleDynamicVersion
   implementation "com.facebook.react:react-native:+"
+  implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$kotlinx_coroutines_version"
+  implementation "androidx.exifinterface:exifinterface:$androidx_exifinterface_version"
 }

android/gradle.properties

@@ -1,3 +1,7 @@
 RNImageEditor_compileSdkVersion=34
 RNImageEditor_targetSdkVersion=34
 RNImageEditor_minSdkVersion=21
+RNImageEditor_kotlinxCoroutinesVersion=1.7.3
+RNImageEditor_androidxExifinterfaceVersion=1.3.6
+RNImageEditor_kotlinVersion=1.7.22
+RNImageEditor_spotlessVersion=6.22.0

android/gradlew

@@ -0,0 +1,16 @@
+// formatter & linter configuration for kotlin
+apply plugin: 'com.diffplug.spotless'
+
+spotless {
+  java {
+    target 'src/*/java/**/*.java'
+    googleJavaFormat()
+  }
+  kotlin {
+    target 'src/**/*.kt'
+    ktfmt('0.46').kotlinlangStyle()
+    trimTrailingWhitespace()
+    indentWithSpaces()
+    endWithNewline()
+  }
+}