iphone : Tabbar method not call during compilation?

I want an activity indicator on a particular tab bar. I ha开发者_开发问答ve applied the UITabBarDelegate protocol on the .h file.

I wrote this method for selecting particular tabbar,

- (void)tabBar:(UITabBar *)tabBar didSelectItem:(UITabBarItem *)item

this method is not called during compilation. What should I do?

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Have you also did your IBOutlet connection to the tab bar?

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I think you forgot to write

   tab.delegate = self;