Spinner

Display a spinning text widget during a long-running process in your app

Call Spinner::with_spinner, and pass it a block:

Spinner::with_spinner do |spin|
    30.times do
        sleep 0.1
        spin.call
    end
end

Each time you call spin.call in the block, it will animate the spinner.

You can specify the message it displays, and cause it to display a percentage of completion, by passing a couple options:

Spinner::with_spinner(:count=>1000, :message=>"Processing files...") do |spin|
    1000.times do |file|
        # ... do something ...
        spin.call
    end
end