add example from jetpacks.io

Author: anod

build.gradle

@@ -18,7 +18,7 @@ android {
         minSdkVersion 15
         targetSdkVersion 23
         versionCode 1
-        versionName "1.0"
+        versionName "1.0.0"
     }
 
     buildTypes {
@@ -45,3 +45,26 @@ android {
 dependencies {
     compile 'com.android.support:recyclerview-v7:23.0.0'
 }
+
+// build a jar with source files
+task sourcesJar(type: Jar) {
+    from android.sourceSets.main.java.srcDirs
+    classifier = 'sources'
+}
+
+task javadoc(type: Javadoc) {
+    failOnError  false
+    source = android.sourceSets.main.java.sourceFiles
+    classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
+}
+
+// build a jar with javadoc
+task javadocJar(type: Jar, dependsOn: javadoc) {
+    classifier = 'javadoc'
+    from javadoc.destinationDir
+}
+
+artifacts {
+    archives sourcesJar
+    archives javadocJar
+}