NSArray of images with previous button

[chris Good]

Basically, I want to design an app that has anywhere from 30-100 or more images, with a previous and next button to go through them in an array. I am using NSArray

I've looked at random bits of example code but I'm having a hard time figuring out how to do it. What is the easiest and most efficient method to go back and forth between these images in one view?

can some one please provide code that shows how to display the previous image shown