尝试从导航堆栈弹出视图时断言失败 [英] Assertion failure while trying to pop views from the navigation stack

问题描述

我正在尝试弹出导航堆栈中的特定视图控制器，但是我做错了，因为当我尝试执行代码时弹出此错误

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

这是导致问题的代码

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

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

推荐答案

设法找到一个其他示例，这些示例都可以很好地工作.

Managed to find an example else where which works perfectly.

///只需选择objectAtIndex号以弹出到导航堆栈上的特定点

//Just choose objectAtIndex number to pop to a particulart point on the navigation stack

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

希望这会有所帮助.

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