Sprocket Android 1.4+ Filter (Concept)

A much better filter that appears in the app bar as it expands downwards on filter action press. After working through it I dont think the years UX quite makes sense and will be complicated to make.

Check out Sprocket, my new bicycle marketplace/database at: https://play.google.com/store/apps/details?id=com.retrographic.sprocket&hl=en