Ride sharing in Andalusia?

Are you thinking about transportation within cities or transportation between cities? There are buses supplementing trains (and usually quite a bit less expensive) for travel between cities. I have no idea about local transportation, because I mostly just walk. In case you are not aware, European cities of any size usually have extensive bus networks.

Uber does operate in Spain, but not in all cities. Search on Uber and the city you plan on using it in to see if it operates there.