如何从标签栏控制器获取“当前”导航控制器 [英] How to get the 'current' navigation controller from tab bar controller

问题描述

是否有方法检索标签栏控制器当前的可见导航控制器？

Is there is a method to retrieve tab bar controller's current visible navigation controller?

例如，我的程序中有2个标签栏（每个导航控制器一个）下面

For example, I have 2 tabbars in my program (one navigation controller each) as below

- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url 
{   
   //Method is called when user clicks on a hyperlink in one of view controllers
    NSDictionary *dict = [self parseQueryString:[url query]];
    NSString *userID = [dict objectForKey:@"id"];
    NSString *navconTitle = [dict objectForKey:@"navcon"];


    //intention is to push a view controller onto the CURRENT navigation stack
    [navcon pushViewController:someViewController animated:YES];

    }
}

return YES;
}

任何人都可以告诉我如何确定当前的导航控制器以便我可以将更多的viewcontrollers推到它上面？

Can anyone advise me how I can determine the current navigation controller so that I can push more viewcontrollers onto it?

推荐答案

使用 UITabBarController s selectedViewController属性。

Use the UITabBarControllers selectedViewController property.

navcon = (UINavigationController*)myTabBarController.selectedViewController;
[navcon pushViewController:someViewController animated:YES];

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