Added Dokka for Kotlin Doc

android/build.gradle

@@ -10,6 +10,7 @@ buildscript {
         classpath 'com.android.tools.build:gradle:3.4.2'
         classpath "com.diffplug.spotless:spotless-plugin-gradle:3.14.0"
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath "org.jetbrains.dokka:dokka-gradle-plugin:0.10.0"
     }
 }
 

android/keyple-plugin/android-omapi/build.gradle

@@ -4,6 +4,7 @@ apply plugin: 'com.android.library'
 apply plugin: 'maven'
 apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
+apply plugin: 'org.jetbrains.dokka'
 
 def version = "0.9.0"
 
@@ -13,11 +14,6 @@ if(project.getProperties().containsKey("release") && release=="true"){
     project.version = version+'-'+ timestamp+ '-SNAPSHOT'
 }
 
-apply plugin: 'com.android.library'
-apply plugin: 'maven'
-apply plugin: 'kotlin-android'
-apply plugin: 'kotlin-android-extensions'
-
 archivesBaseName = "keyple-android-plugin-omapi"
 
 group 'org.eclipse.keyple'
@@ -54,6 +50,11 @@ android {
         abortOnError false
     }
 
+    dokka {
+        outputFormat = 'html'
+        outputDirectory = "$buildDir/javadoc"
+    }
+
     //generate output aar with a qualified name : with version number
     libraryVariants.all { variant ->
         variant.outputs.all { output ->
@@ -103,19 +104,15 @@ android {
 
 }
 
-
-//build javadoc
-task javadoc(type: Javadoc) {
-    failOnError false
-    source = android.sourceSets.main.java.sourceFiles
-    classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
-    classpath += configurations.compile
+task javadoc(type: org.jetbrains.dokka.gradle.DokkaTask) {
+    outputFormat = 'javadoc'
+    outputDirectory = dokka.outputDirectory
+    inputs.dir 'src/main/kotlin'
 }
 
-// build a jar with javadoc
 task javadocJar(type: Jar, dependsOn: javadoc) {
     classifier = 'javadoc'
-    from javadoc.destinationDir
+    from dokka.outputDirectory
 }
 
 //build sources jar