tabbar和navigation的结合（跳转）

popToViewController

[self.navigationController popToViewController:[self.navigationController.viewControllers objectAtIndex:2] 

animated:YES];

for (UIViewController *temp in self.navigationController.viewControllers) {

        if ([temp isKindOfClass:[DetailViewController class]]) {

            [self.navigationController popToViewController:temp animated:YES];

        }

    }