Android image with clickable areas

Question

I need an advice how to achieve the following functionality under Android:

• I need an image that represents something like a graph (from discrete math), with ve

Answer 1

I think you might be best off with a SurfaceView:

http://developer.android.com/reference/android/view/SurfaceView.html

And handling the onTouchEvent() as a whole for the surface, and mapping that to underlying entities in the image. If you're calculating the drawing the graph as you go should be easy to also create a map of tapable areas and grabbing the X and Y of the touch event to figure out if it corresponds to an element in the image.

If you literally have an image, as an already processed PNG for example, you would need some way to also carry in the touch event areas. Depends where that image comes in from.