Add source.jar and javadoc.jar

Author: 75py

library/build.gradle

@@ -111,3 +111,28 @@ install {
         }
     }
 }
+
+task sourcesJar(type: Jar) {
+    from android.sourceSets.main.java.srcDirs
+    classifier = 'sources'
+}
+
+task javadoc(type: Javadoc) {
+    source = android.sourceSets.main.java.srcDirs
+    classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
+}
+
+afterEvaluate {
+    javadoc.classpath += files(android.libraryVariants.collect { variant ->
+        variant.javaCompile.classpath.files
+    })
+}
+
+task javadocJar(type: Jar, dependsOn: javadoc) {
+    classifier = 'javadoc'
+    from javadoc.destinationDir
+}
+artifacts {
+    archives javadocJar
+    archives sourcesJar
+}