RubyMotion Masonry demo

1. Add CocoaPods to RubyMotion project

   # Gemfile
   gem "motion-cocoapods"

2. Install

   bundle install

3. Add Masonry to project

   Motion::Project::App.setup do |app|
     # ...
     app.pods do
       pod 'Masonry'
     end
   end

4. Install Masonry

   [bundle exec] rake pod:install

5. Use Masonry as usual but remember to call the Proc returned by methods

   # mas_makeConstraints takes either a stabby lambda or Proc
   @my_button.mas_makeConstraints ->(make) {
     make.top.equalTo.call(self.view.mas_top).with.offset.call(padding.top)
     make.left.equalTo.call(self.view.mas_left).with.offset.call(padding.left)
     make.bottom.equalTo.call(self.view.mas_bottom).with.offset.call(-padding.bottom)
     make.right.equalTo.call(self.view.mas_right).with.offset.call(-padding.right)
   }

Note the .call for calling the Proc with an argument.

lib/masonry.rb adds some shortcuts to MASViewConstraint and MASCompositeConstraint eliminating the need for .call.