iphone - Adding Info Button to UITabBarController's More Screen -

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i'm trying add info button more screen uitabbarcontroller generates when have more 5 tabs. code i'm using this:

// add info button more controller uibutton *infobutton = [uibutton buttonwithtype:uibuttontypeinfolight]; uibarbuttonitem *infobarbutton = [[[uibarbuttonitem alloc] initwithcustomview:infobutton] autorelease]; tabbarcontroller.morenavigationcontroller.navigationitem.leftbarbuttonitem = infobarbutton;

this sort of thing seems work fine other uiviewcontrollers, in case, code builds , runs fine, button never appears.

any idea might need changing work?

aha! needed access first item in morenavigationcontroller stack, rather morenavigationcontroller itself.

tabbarcontroller.morenavigationcontroller.topviewcontroller.navigationitem.leftbarbuttonitem = infobarbutton;

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