navigationController跳转指定页面

返回根页面vc用 ：

[self.navigationController popToRootViewController];

返回指定的某个vc用下面（通过index定位）

[self.navigationController popToViewController:[self.navigationController.viewControllers objectAtIndex:2] animated:YES];

或（通过class定位）

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

if([controller isKindOfClass:[你要跳转到的Controllerclass]]) {

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

}

}