Function to update text

[jamesbradlee]

There is currently no way to update the text in the spinner, would be nice.

[l0uisgrange]

Sorry for bumping this, but this would indeed be very useful. Is it planned?

[FGRibreau]

Yes, @l0uisgrange @jamesbradlee please send a PR along with tests so we can discuss it and find a way to merge that :)