如何導航控制器添加到程序標籤欄

Question

您好我有一些代碼我更新的iOS 7，所以我有一個在這裏列出的問題：iOS 7 Status Bar Collides With NavigationBar

所以我試圖修復它。在我的RestaurantSearch視圖上，我添加了一個導航控制器。問題是現在我的代碼與此錯誤崩潰：

*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '-[UIViewController _loadViewFromNibNamed:bundle:] loaded the "RestaurantSearch" nib but the view outlet was not set.' 

我不知道該怎麼設置插座。之前它只是一個視圖，它被設置爲文件的所有者。這不再是一種選擇。

這裏是我在這一行[selfView.navigationController pushViewController:tab animated:YES];

這裏的標籤欄

void SetTabbar(UIViewController *selfView) 
{ 
UITabBarController *tab = [[[UITabBarController alloc] init] autorelease]; 

nibName = NIB_NAME(@"RestaurantSearch"); 
RestaurantSearch *vc1 = [[RestaurantSearch alloc] initWithNibName:nibName bundle:nil]; 
UINavigationController *nav1 = [[[UINavigationController alloc] initWithRootViewController:vc1] autorelease]; 
nav1.tabBarItem.title = @"Search"; 
nav1.tabBarItem.image = [UIImage imageNamed:@"search_on.png"]; 
[nav1.tabBarItem setFinishedSelectedImage:[UIImage imageNamed:@"green_search_on.png"] withFinishedUnselectedImage:nil]; 
nav1.navigationBarHidden = YES; 

nibName = NIB_NAME(@"Friends"); 
Friends *vc2 = [[Friends alloc] initWithNibName:nibName bundle:nil]; 
UINavigationController *nav2 = [[[UINavigationController alloc] initWithRootViewController:vc2] autorelease]; 
nav2.tabBarItem.title = @"Friends"; 
nav2.tabBarItem.image = [UIImage imageNamed:@"contact_on.png"]; 
[nav2.tabBarItem setFinishedSelectedImage:[UIImage imageNamed:@"green_contact_on.png"] withFinishedUnselectedImage:nil]; 
nav2.navigationBarHidden = YES; 

nibName = NIB_NAME(@"RewardList"); 
RewardList *vc3 = [[RewardList alloc] initWithNibName:nibName bundle:nil]; 
UINavigationController *nav3 = [[[UINavigationController alloc] initWithRootViewController:vc3] autorelease]; 
nav3.tabBarItem.title = @"Reward"; 
nav3.tabBarItem.image = [UIImage imageNamed:@"reward_on.png"]; 
[nav3.tabBarItem setFinishedSelectedImage:[UIImage imageNamed:@"green_reward_on.png"] withFinishedUnselectedImage:nil]; 
nav3.navigationBarHidden = YES; 

nibName = NIB_NAME(@"MoreViewController"); 
MoreViewController *vc4 = [[MoreViewController alloc] initWithNibName:nibName bundle:nil]; 
UINavigationController *nav4 = [[[UINavigationController alloc] initWithRootViewController:vc4] autorelease]; 
nav4.tabBarItem.title = @"More"; 
nav4.tabBarItem.image = [UIImage imageNamed:@"more_on.png"]; 
[nav4.tabBarItem setFinishedSelectedImage:[UIImage imageNamed:@"green_more_on.png"] withFinishedUnselectedImage:nil]; 
nav4.navigationBarHidden = YES; 

// Change the tabbar's background and selection image through the appearance proxy 
[[UITabBar appearance] setBackgroundImage:[UIImage imageNamed:@"tabbar_bg_flat.png"]]; 
[[UITabBar appearance] setSelectionIndicatorImage:[UIImage imageNamed:@"tabbar_selection_flat.png"]]; 

NSArray *array = [NSArray arrayWithObjects:nav1, nav2, nav3, nav4, nil]; 
[tab setViewControllers:array]; 


// Text appearance values for the tab in normal state 
NSDictionary *normalState = @{ 
           UITextAttributeTextColor : [UIColor colorWithWhite:0.213 alpha:1.000], 
           UITextAttributeTextShadowColor: [UIColor whiteColor], 
           UITextAttributeTextShadowOffset: [NSValue valueWithUIOffset:UIOffsetMake(0.0, 1.0)] 
           }; 

// Text appearance values for the tab in highlighted state 
NSDictionary *selectedState = @{ 
           UITextAttributeTextColor : [UIColor blackColor], 
           UITextAttributeTextShadowColor: [UIColor whiteColor], 
           UITextAttributeTextShadowOffset: [NSValue valueWithUIOffset:UIOffsetMake(0.0, 1.0)] 
           }; 

[[UITabBarItem appearance] setTitleTextAttributes:normalState forState:UIControlStateNormal]; 
[[UITabBarItem appearance] setTitleTextAttributes:selectedState forState:UIControlStateHighlighted]; 

[selfView.navigationController pushViewController:tab animated:YES]; 
g_tabbar = tab; 
} 

發生崩潰的代碼是我的導航視圖設置的屏幕截圖。

我想這可能是這個問題的一個可能重複Loaded nib but the view outlet was not set - new to InterfaceBuilder

然而，當我按照指示，我收到一個新的錯誤：

'A view can only be associated with at most one view controller at a time! View <UIView: 0x1dd45ae0; frame = (0 0; 320 460); autoresize = W+H; autoresizesSubviews = NO; layer = <CALayer: 0x1dd45b40>> is associated with <RestaurantSearch: 0x1dd28e20>. Clear this association before associating this view with <RestaurantSearch: 0x1f03df70>.' 

我的猜測是，我掛鉤的東西了不正確，但我不確定是什麼。我ctr +從導航控制器拖到我上面的圖像中的視圖。這可能與它有關嗎？

Answer 1

您應該將標籤欄作爲根導航控制器添加到您的應用程序。選項卡欄需要是根視圖控制器。您無法將其推送到視圖控制器子視圖。 你需要把它添加到您在窗口的applicationDidFinishLaunching：方法，如：

[self.window setRootViewController:tab];