在iOS中加载不同的UINavigationController：导航流不工作

我正在开发通用应用程序，我想为iPad和iPhone加载不同的文件。在iOS中加载不同的UINavigationController：导航流不工作

导航流程不起作用。任何帮助赞赏。

我写像应用程序代理下面的代码，

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil]; 
UIViewController *viewController; 

UINavigationController *navViewController; 




if (IDIOM == IPAD) { 
    navViewController = [storyboard instantiateViewControllerWithIdentifier:@"ViewController_iPad"]; 
} else { 
    navViewController = [storyboard instantiateViewControllerWithIdentifier:@"ViewController"]; 
} 

// self.window.rootViewController = viewController; 
self.window.rootViewController = navViewController; 
[self.window makeKeyAndVisible]; 
return YES;

来源

2016-03-08 Sai Bharath Yadav

你怎么能使用相同的标识符ViewController_iPad导航VC和viewController – techloverr

现在我改变了但没有工作 –

所以你的topViewController是可见的？或者你变黑屏？ – techloverr

嘿老兄一次尝试这个，

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil]; 

UINavigationController *navigationController = (UINavigationController *) self.window.rootViewController; 

if (IDIOM == IPAD) { 
    [navigationController pushViewController:[storyboard instantiateViewControllerWithIdentifier:@"ViewController_iPad"] animated:NO]; 
} else { 
    [navigationController pushViewController:[storyboard instantiateViewControllerWithIdentifier:@"ViewController"] animated:NO]; 
} 

self.window.rootViewController = navigationController; 
[self.window makeKeyAndVisible]; 
return YES;

来源

2016-03-08 08:03:31 Bharath

谢谢，它工作正常。 –

你加入这样的，例如

在这里
你UINavigation的标识符控制器不是UIViewcontroller，所以试试像

if (IDIOM == IPAD) { 
navViewController = [storyboard instantiateViewControllerWithIdentifier:@"ViewController_iPad"]; 
} else { 
navViewController = [storyboard instantiateViewControllerWithIdentifier:@"XXXX"]; 
}

更新

选择-1

您可以直接访问按自己的方式只需要修改这个没有必要的UINavigationController *navViewController;这里

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil]; 
UIViewController *viewController; 

if (IDIOM == IPAD) { 
    viewController = [storyboard instantiateViewControllerWithIdentifier:@"ViewController_iPad"]; 
} else { 
    viewController = [storyboard instantiateViewControllerWithIdentifier:@"ViewController"]; 
} 

    self.window.rootViewController = viewController; 
// self.window.rootViewController = navViewController; 
[self.window makeKeyAndVisible]; 
return YES;

选择-2

删除故事板故事板屏幕上，并创建progrmatically导航控制器，就像在故事板，而不是UIViewController的标识UINavigation控制器

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil]; 
UIViewController *viewController; 

if (IDIOM == IPAD) { 
    viewController = [storyboard instantiateViewControllerWithIdentifier:@"ViewController_iPad"]; 
} else { 
    viewController = [storyboard instantiateViewControllerWithIdentifier:@"ViewController"]; 
} 

    UINavigationController *navigationController=[[UINavigationController alloc] initWithRootViewController:viewController]; 
// self.window.rootViewController = viewController; 
self.window.rootViewController = navigationController; 
[self.window makeKeyAndVisible]; 
return YES;

来源

2016-03-08 07:48:48

是的，我做同上 –

canyou显示你的故事板的场景 –

我已经编辑和添加screenshot.please检查 –

集标识符，因为你是从加载导航控制器故事板不是viewcontroller。

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil]; 
    UIViewController *viewController; 

    UINavigationController *navViewController; 

    if (IDIOM == IPAD) 
    { 
     navViewController = [storyboard instantiateViewControllerWithIdentifier:@"ViewController_iPad"]; 
    } 
else 
    { 
     navViewController = [storyboard instantiateViewControllerWithIdentifier:@"ViewController"]; 
    } 

self.window.rootViewController = navViewController; 
[self.window makeKeyAndVisible]; 
return YES;

来源

2016-03-08 07:53:37 Saood

no saood，如果您编程创建导航控制器，它会在导航堆栈中添加另一个堆栈，检查更新问题一次，并更新您的答案请 –

ok anbu，当您添加屏幕快照时，我更新了我的答案。检查它 – Saood

@ Anbu.Karthik在我的文章阅读评论。这将解决您的问题 – Saood

我觉得我的代码将帮助您

在appdelegate.h

@property (strong , nonatomic)UINavigationController *mainNavController;

添加此行didFinishLaunchingWithOptions添加此行appdelegate.m方法

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil]; 


    if (IDIOM == IPAD) 
    { 
     self.window.rootViewController = [storyboard instantiateViewControllerWithIdentifier:@"ViewController_iPad"]; 
    } 
else 
    { 
     self.window.rootViewController = [storyboard instantiateViewControllerWithIdentifier:@"ViewController"]; 
    } 
    self.mainNavController = (UINavigationController *)self.window.rootViewController;

来源

2016-03-08 08:20:17

在iOS中加载不同的UINavigationController：导航流不工作

回答

相关问题