Android and iPhone arc drawing sample

We are evaluating iPhone and Android for some internal projects and as such we need some sample applications built to try out various aspects of the API. The first app we need in both iPhone and Android is something to evaluate the drawing and touch apis in both Given a radius and a set of args ( an array of start and end angles ) we need the application to draw a circle and different arcs in the circle. I am attaching a sample image to illustrate what I am talking about.