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iOS Preventing Navigation Control from poping view

S

slammers

macrumors newbie
Original poster
Sep 28, 2008
6
0
I have an App that pushes many UIViewControllers. If one view has data that has been changed I need to prevent the user from pressing the standard back navigation button.

I thought I could just implement the UINavigationBarDelegate Protocol function shouldPopItem:

In Interface builder I added a NavigationBar and set the Delegate to the FileOwner.

However, if I add the function

- (BOOL)navigationBar:(UINavigationBar *)navigationBar shouldPopItem:(UINavigationItem *)item

It never gets called.

Is it not possible to prevent the Navigation controller for poping a view?

Thanks
Shawn
 
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