Catch events raised by NavigationBarButton

[Jack Fair_Weather]

Anyone know how to catch events (eg. touchupinside) raised when the user taps the "back button" that is automatically placed on the left side of a navigation bar when a NavigationViewController is used?

[JasonR]

I never found a way to catch events on the built in back button, but you can replace the back button with your own button. Then you can do whatever you want, and pop the view controller to go back when you are ready.

[Jack Fair_Weather]

Originally Posted by JasonR

I never found a way to catch events on the built in back button, but you can replace the back button with your own button. Then you can do whatever you want, and pop the view controller to go back when you are ready.

Thanks, I've done just that. I like the arrow shape of the automatically installed back button, so I didn't want to give it up.

[nobre84]

I have done that by subclassing UINavigationController and overriding navigationBar:shouldPopItem , I then ask a custom delegate if it should allow going back or not.