I'm trying to draw a custom volume display, basically an image and rectangles, directly on screen. Its not an app but a dynamic library to draw direct to SpringBoard. I've looked at many sources, sample, and tutorials, but still cant figure it out. Since this is SpringBoard im guess i cant use CoreGraphics since UIKit is what SpringBoards based on. So do i need to hook a function if so which one, and what code do i use to draw.