iphone - UITabController flip -

i have tabbarcontroller in appdelegate :

iboutlet tabbarviewcontroller *tab; 

this main controller in app.

and in 1 of viewcontroller inside tabs want add uibutton when user press tabcontroller change uiviewcontroller flip animation.

i tried achive method:

radiomainvc *radiomainvc = [[radiomainvc alloc] initwithnibname:@"radiomainvc" bundle:nil]; uinavigationcontroller *radionav = [[uinavigationcontroller alloc] initwithrootviewcontroller:radiomainvc];  [uiview beginanimations:@"animation" context:nil]; [self.tabbarcontroller presentmodalviewcontroller:radionav animated:no]; [uiview setanimationtransition:uiviewanimationtransitionflipfromleft forview:self.tabbarcontroller.view cache:no]; [uiview commitanimations]; 

and flip won't work,any idea how fix it?

unfortunately haven't tested code might trick:

[uiview transitionfromview: self.tabbarcontroller.view toview: radionav.view duration: 0.5 options: uiviewanimationtransitionflipfromleft completion: ^(bool finished) {     window.rootviewcontroller = radionav; }];