iOS NavigationController栈跳转

3种跳转方式

a->b->c-> 实现c->a

1.通过修改导航栈来跳转 先修改栈再pop

        [array removeObjectAtIndex:(array.count - 2)];
        [self.navigationController setViewControllers:array animated:YES];
        [self.navigationController popViewControllerAnimated:YES];

2.通过popToView来跳转 根据索引

        [self.navigationController popToViewController:[self.navigationController.viewControllers objectAtIndex:array.count - 3] animated:YES];

3.通过popToView来跳转 找对应类

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

            if ([controller isKindOfClass:[你要跳转到的Controller class]]) {
                [self.navigationController popToViewController:controller animated:YES];
            }
         }