如何获取uinavigation栏后退按钮返回到Anthother视图控制器 [英] How to get a uinavigation bar back button to return to anthother view controller

问题描述

如何让UINavigation控制器导航到之前的视图，而不是之前的视图。基本上我希望它跳回2个位置而不是默认值。

这是非常规的我确定，但我现在只需要这样做。

  self.navigationItem.backBarButtonItem = 
 [[[UIBarButtonItem alloc] initWithTitle：@Back
 style：UIBarButtonItemStyleBordered 
 target：nil 
 action：nil] autorelease]; 
  

感谢您的帮助。

设置：

  self.navigationItem.backBarButtonItem = [[[UIBarButtonItem alloc] initWithTitle：@ Back样式：UIBarButtonItemStyleBordered target：self action：@selector（goBack）] autorelease]; 
  

然后创建方法 -goBack

   - （void）goBack 
 {
 UIViewController * ctrl = [self.navigationController.viewControllers objectAtIndex：self。 navigationController.viewControllers.count  -  2]; 
 [self.navigationController popToViewController：ctrl animated：YES]; 
} 
  

How would I go about having a UINavigation controller navigate not to the previous view but the view before that. Basically I would like it to jump back 2 places instead of the default one.

This is unconventional I'm sure, but I just need to do it for now.

 self.navigationItem.backBarButtonItem =
    [[[UIBarButtonItem alloc] initWithTitle:@"Back"
                                      style:UIBarButtonItemStyleBordered
                                     target:nil
                                     action:nil] autorelease];

thanks for any help.

解决方案

Set:

self.navigationItem.backBarButtonItem = [[[UIBarButtonItem alloc] initWithTitle:@"Back" style:UIBarButtonItemStyleBordered target:self action:@selector(goBack)] autorelease];

then create a method -goBack

-(void)goBack
{
   UIViewController *ctrl = [self.navigationController.viewControllers objectAtIndex:self.navigationController.viewControllers.count - 2];
   [self.navigationController popToViewController:ctrl animated:YES];
}

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