Write cross-platform apps for iOS, Android and OS X in Ruby

http://www.rubymotion.com/

I like Ruby a lot and finding a good framework like RubyMotion is a pleasure but as one of my workmates said to build an app with it for both Android and iOS is like writing two apps because you need to know both the APIs; instead an hybrid framework in many cases permits to do the same with a unique code.

Good points

  • outputs native app
  • to use Ruby for mobile app
  • cross-platform (included OSX)

Less good points

  • price: free with restrictions (only latest mobile OS for app target) or min 200$ per year
  • specific OS knowledge is required

Android example

class MainActivity < Android::App::Activity
  def onCreate(savedInstanceState)
    super
    view = Android::Widget::TextView.new(self)
    view.text = "Hello World!"
    self.contentView = view
  end
end

iOS example

class AppDelegate
  def application(application, didFinishLaunchingWithOptions:launchOptions)
    alert = UIAlertView.new
    alert.message = "Hello World!"
    alert.show
    true
  end
end