movie_screen.rb

class MovieScreen < PM::Screen
  title 'Movie details'
  stylesheet :movie_details

  attr_accessor :movie

  def on_load
    self.title = movie.full_title
  end

  def will_present
    layout(view, :main_view) do
      subview(scroll, :scroll) do
        subview(image_container, :poster)
        subview(overview_label, :overview)
        subview(movie_staff.view, :staff_list)
      end
    end
    overview_label.sizeToFit
    image_container.setImageWithURL(poster_url)
    movie_staff.view.frame = [[0, 10 + overview_label.size.height], [view.frame.size.width, view.frame.size.height]]
  end

  def on_appear
    movie_staff.view.frame = [[0, 10 + overview_label.size.height], [view.frame.size.width, movie_staff.view.contentSize.height]]
    scroll.contentSize     = [scroll.frame.size.width, content_height(scroll)]
  end

  private

  def scroll
    @scroll ||= UIScrollView.alloc.initWithFrame(view.bounds)
  end

  def image_container
    @image_container ||= UIImageView.new
  end

  def overview_label
    @overview_label ||= movie.overview.uilabel
  end

  def movie_staff
    @movie_staff ||= MovieStaffScreen.new(movie: movie)
  end

  def poster_url
    "#{ Settings.hostname }#{ movie.poster[:suggested] }".nsurl
  end
end