Question

I am looking for strategies, best practices and solutions to adding a custom class to the responder chain. This came about because I realized I was handling touch events the same way in several different applications. To make life easy, I wanted to move the functionality into a custom class and have that class become the first responder for touch events. Since my first several ideas did not work, I realized this wasn’t going to be an ad-hoc issue I could address.

I have made several attempts based on different documents, posts, etc that I have read (which is why I’m not posting source right now). My most recent attempt derives from UIResponder and has a UIView member that stores a pointer to the current view.

Before I spent too much time on ‘figuring it out’, I wanted to see if anyone had any ideas.

So my question is ‘how do I add a custom class to be the first responder, specifically to receive touch events’?

Answer 1

Your solution sounds weird because UIView is itself a UIResponder.

If you have common event handling code, why not declare a category on UIView or UIResponder which you will then be able to access from all of your UIView (or UIResponder) subclasses including UIApplication, UIWindow and UIControl.