Class: UIAlertView

Inherits:
Object show all
Defined in:
lib/sugarcube/uialertview.rb

Class Method Summary collapse

Class Method Details

.alert(title, options = {}, &block) ⇒ Object

UIAlertView.alert("title", message: "help!", # The first button is considered the 'cancel' button, for the purposes of # whether the cancel or success handler gets called buttons: %w"Cancel OK No-way", cancel: proc{ puts "nevermind" }, success: proc{ |pressed| puts "pressed: #pressed" }, )



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# File 'lib/sugarcube/uialertview.rb', line 11

def self.alert(title, options={}, &block)
  if options.is_a? String
    options = {message: options}
  end

  # create the delegate
  delegate = SugarCube::AlertViewDelegate.new
  delegate.on_success = options[:success] || block
  delegate.on_cancel = options[:cancel]
  delegate.send(:retain)

  args = [title]            # initWithTitle:
  args << options[:message] # message:
  args << delegate          # delegate:

  buttons = options[:buttons] || []
  if buttons.empty?
    # cancelButtonTitle: is first, so check for cancel
    buttons << "Cancel" if options[:cancel]
    # otherButtonTitles:
    buttons << "OK" if options[:success] or buttons.empty?
  elsif buttons.length == 1 and options[:cancel]
    raise "If you only have one button, use a :success handler, not :cancel (and definitely not BOTH)"
  end

  # the button titles.  These are passed to the success handler.
  delegate.buttons = buttons

  # uses localized buttons in the actual alert
  args.concat(buttons.map{ |s| s.localized })
  args << nil  # otherButtonTitles:..., nil

  alert = self.alloc
  alert.send(:"initWithTitle:message:delegate:cancelButtonTitle:otherButtonTitles:", *args)
  alert.show
  alert
end