How to Zoom In/Out Photo on double Tap in the iPhone WWDC 2010 - 104 PhotoScroller

Question

I am going through the Sample code of iPhone WWDC 2010 - 104 PhotoScroller App. It\'s working great with my project related images (PDF Page Images)

but I am struggl

Answer 1

How about adding a UITapGestureRecognizer to the ImageScrollView?

As long as you are looking at sample code, you can check out how UIGestureRecognizers are used in the ScrollViewSuite sample code.