Subject: [ANN] Ruboto 0.13.0 released!

The Ruboto team is pleased to announce the release of Ruboto 0.13.0.

Ruboto (JRuby on Android) is a platform for developing full stand-alone apps for Android using the Ruby language and libraries. It includes support libraries and generators for creating projects, classes, tests, and more. The complete APIs of Android, Java, and Ruby are available to you using the Ruby language.

New in version 0.13.0:

In this release we add support for Android API level 17 and the Android SDK r22. There are improvements on the “ruboto setup” command, and general preparations for the 1.0 release.


  • Issue #176 Add option to allocate large heap at startup
  • Issue #252 View constant conversion errors aren’t very clear
  • Issue #333 Prettier design for the Ruboto platform apk
  • Issue #405 “ruboto setup” on Windows
  • Issue #408 Setup: Need to look up the latest Android tool version (instead of hard coding it) if we can
  • Issue #409 Add support for Android SDK r22
  • Issue #410 Add -y option to “ruboto setup” to automatically install components, accept licenses, and add to configuration
  • Issue #412 Enable starting the emulator without a project
  • Issue #414 Add -t –target parameter to “ruboto setup” to set up for a specific api level
  • Issue #415 Update API xml file to cover android-17
  • Issue #416 Add code for generating the API xml file
  • Issue #422 Put RubotoActivity intent data directly in the Intent instead of inside a Bundle
  • Issue #423 Focus the “start_ruboto_activity” API


  • Issue #264 Force rebuild of (release) apk when jar file is removed from the libs directory
  • Issue #268 Callback for Audio Focus
  • Issue #285 Look into pause/restart issues for secondary Activities
  • Issue #407 Process::Status#to_int not implemented (NotImplementedError) with jruby 1.7.x and ruboto 0.11.0


  • Issue #303 Ruboto should synchronise target in and targetSdkVersion in AndroidManifest.xml
  • Issue #314 Tool confusion: ruboto vs rake
  • Issue #424 Initiliaze the new App


  • Issue #258 Add welcome and information with links to RubotoCore
  • Issue #427 Add sidebar to the WIKI


  • Issue #411 Use “ruboto setup -y” to install components in travis-ci automated testing


  • Issue #175 Rename “update_scripts” rake task to “update” for less typing
  • Issue #259 Link RubotoCore platform apk version to JRuby version
  • Issue #261 Rename RubotoCore platform apk display name to Ruboto
  • Issue #337 Change default for “ruboto gen app” to include JRuby in the app

You can find a complete list of issues here:



To use Ruboto, you need to install a Ruby implementation. Then do (possibly as root/administrator)

gem install ruboto
ruboto setup

To create a project do

ruboto gen app --package <>
cd <project directory>
ruboto setup

To run an emulator for your project

cd <project directory>
ruboto emulator

To run your project

cd <project directory>
rake install start

You can find an introductory tutorial at

If you have any problems or questions, come see us at


– The Ruboto Team

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09 June 2013