Question

I m trying to pop to a specific view controller that is in the navigation stack but I am doing something wrong as I am getting this error pop up when I try to execute the code

Assertion failure in -[UINavigationController popToViewController:transition:], /SourceCache/UIKit_Sim/UIKit-1912.3/UINavigationController.m:2229

Here is the code thats causing the issue

FirstViewController *firstViewController = [[FirstViewController alloc] initWithNibName:@"FirstViewController.xib" bundle:nil];

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

Answer 1

设法找到一个完美地发挥作用的例子。

选择物体 AtIndex number to pop to a particulart point on the Navigationpinack

[self.navigationController popToViewController:[self.navigationController.viewControllers objectAtIndex:1] animated:YES];

希望这一帮助。

Answer 2

我们不能pop开你没有推过的控制器的事例,尽管这可能与你希望返回的另一控制器相同。

在您的法典中,你试图把导航控制器的 st带上新制造的物体。这位控制者不是站在一边,因为你刚刚创立了它。由于导航控制员找不到你正在寻找的控制器,因此犯了一个错误。

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