add javadoc

Author: sun-jiao

build.gradle

@@ -12,6 +12,8 @@ buildscript {
     dependencies {
         classpath 'com.android.tools.build:gradle:3.6.3'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.0'
+        classpath 'com.github.dcendents:android-maven-gradle-plugin:1.4.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

osmunda/build.gradle

@@ -1,6 +1,9 @@
 apply plugin: 'com.android.library'
 apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
+apply plugin: 'com.github.dcendents.android-maven'
+
+group='moe.sunjiao'
 
 android {
     compileSdkVersion 29
@@ -57,3 +60,29 @@ dependencies {
 
     implementation 'org.osmdroid:osmdroid-android:6.1.6'
 }
+
+tasks.withType(JavaCompile) {
+    options.encoding = "UTF-8"
+}
+
+task sourcesJar(type: Jar) {
+    from android.sourceSets.main.java.srcDirs
+    archiveClassifier = 'sources'
+}
+
+task javadoc(type: Javadoc) {
+    failOnError  false
+    source = android.sourceSets.main.java.sourceFiles
+    classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
+    classpath += configurations.compile
+}
+
+task javadocJar(type: Jar, dependsOn: javadoc) {
+    archiveClassifier = 'javadoc'
+    from javadoc.destinationDir
+}
+
+artifacts {
+    archives sourcesJar
+    archives javadocJar
+}