MBProgressHUD helper (only usable within a UIViewController or something with a self.view accessor)

spinner_helper.rb

#
# Usage:
# spinner_on title: "Loading..."
# App.run_after 4 do
#   spinner_off
#   # more...
# end
#
module SpinnerHelper
  def spinner_on(args = {})
    hud = MBProgressHUD.showHUDAddedTo(self.view, animated:true)
    args.each do |k, v|
      hud.send("#{k}=", v) if hud.respond_to? "#{k}="
    end
    hud.labelText = args[:title] if args[:title] # alias title: for labelText:
    hud
  end
  
  def spinner_off
    hud = MBProgressHUD.hideHUDForView(self.view, animated:true)
    hud
  end
end