I hurt my finger, hit by a basketball, very swollen, dark colour, i can hardly move it. went for x ray, in a splint, results tomorrow. what do u think?

Ice: Elevate and keep it cool to decrease swelling and good luck tomorrow.

Possible fracture: Obviously you are waiting for the result of the xray and if there is a fracture that would certainly explain your symptoms however, sometimes even without a fracture, you can develop a large amount of swellng which could cause pain. Sometimes the fluid under the nail needs to be decompressed if it is very painful.

Dislocation/fracture: Tgis is most likely a dislocation with possible fracture. If your finger is sufficiently dark and doesnt demonstrate normal capillary refill (blanching with pressure and return to pink color), i would consider returning to er to evaluate for possible vascular compromise.