Accompanying code for my SocialFramework in RubyMotion blog

button_setup.rb

# Social Framework Action Sheet
@buttons = ['Camera Roll']
social_options = {"Twitter" => SLServiceTypeTwitter, "Facebook" => SLServiceTypeFacebook}

Rakefile

# -*- coding: utf-8 -*-
$:.unshift("/Library/RubyMotion/lib")
require 'motion/project/template/ios'

Motion::Project::App.setup do |app|
  # Use `rake config' to see complete project settings.
  app.name = 'SocialFramework'
  # Old way was to include the Twitter framework here
  app.frameworks += ["Social", "Accounts"]
end

social_media_post.rb

def social_media_post service
  p "load social media sheet for #{service}"
  social_controller = SLComposeViewController.composeViewControllerForServiceType(service)
  social_controller.setInitialText("@iconoclastlabs ROX!")
  #social_controller.addImage(@some_picture)
  social_controller.addURL(NSURL.URLWithString("http://www.iconoclastlabs.com"))
  social_controller.completionHandler = lambda do |result|
    case result
      when SLComposeViewControllerResultDone
        p "Social post successful"
      when SLComposeViewControllerResultCancelled
        p "Social post cancelled"
    end
  end    
  presentModalViewController(social_controller, animated:true)   
end

social_options.rb

social_options.each do |social|
  # dup the element because it will try to pass reference to frozen asset
  @buttons << social[0].dup if SLComposeViewController.isAvailableForServiceType(social[1])
end

Sugarcube_version.rb

# THIS IS HOW TO DO IT REAL QUICK WITH SUGARCUBE
# https://github.com/rubymotion/sugarcube
@buttons = ['Cancel', nil, 'Camera Roll']
UIActionSheet.alert(nil, buttons: @buttons,
 cancel: proc {p "Cancel - doing nothing is ok"  },
 destructive: nil,
 success: proc do |pressed|
   if @social_options.include? pressed
     social_media_post(@social_options[pressed])
   elsif pressed == 'Camera Roll'
     p "Save to camera roll"
   end
 end
)

UIActionSheet_code.rb

sheet = UIActionSheet.alloc.initWithTitle(nil,
  delegate:self,
  cancelButtonTitle:nil,
  destructiveButtonTitle:nil,
  otherButtonTitles:nil)
@buttons.each do |btn|
  sheet.addButtonWithTitle(btn)
end
sheet.cancelButtonIndex = sheet.addButtonWithTitle('Cancel')
sheet.showInView(view)

# ... rest of your parent method (e.g. viewDidLoad), then handle the delegate

def actionSheet(sheet, didDismissWithButtonIndex:buttonIndex)
  button = @buttons[buttonIndex]
  social_media_post(@social_options[button])
end