How to make the collision detection in iphone sdk

Question

In my screen I am having some apples falling to the bottom randomly and I am having a basket at the bottom. I need to know when a collision of an apple and the basket is detected.

Can anyone suggest me how to do this collision detection?

Thanks to all,
Monish.

Answer 1

You can use one of the ported physics engines, they generally give you an ability to detect collisions. For an example you can look here: Chipmunk Physics or Box2D for C++ 2D GameEngine?