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POHow to add a Navigation Controller to a programmed tab bar
 

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  1. POHow to add a Navigation Controller to a programmed tab bar
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    <p>Hi I have some code I'm updating for iOS 7, so I have the problem that is outlined here:<a href="https://stackoverflow.com/questions/19105766/ios-7-status-bar-collides-with-navigationbar">iOS 7 Status Bar Collides With NavigationBar</a></p> <p>So I'm trying to fix it. On my RestaurantSearch View I have added a Navigation Controller. Problem is now my code crashes with this error:</p> <pre><code>*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '-[UIViewController _loadViewFromNibNamed:bundle:] loaded the "RestaurantSearch" nib but the view outlet was not set.' </code></pre> <p>I'm not sure what to set the outlet too. Before when it was just a view it was set to the File's Owner. That's not an option anymore. </p> <p>Here is my code for the tab bar</p> <pre><code>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; } </code></pre> <p>The crash occurs on this line <code>[selfView.navigationController pushViewController:tab animated:YES];</code></p> <p>Here is a screen shot of my Navigation View setup. <img src="https://i.stack.imgur.com/VXDaX.png" alt="Screen Shot"></p> <p>I thought this might be a possible duplicate of this question <a href="https://stackoverflow.com/questions/4763519/loaded-nib-but-the-view-outlet-was-not-set-new-to-interfacebuilder">Loaded nib but the view outlet was not set - new to InterfaceBuilder</a></p> <p>However when I follow instructions, I receive a new error:</p> <pre><code>'A view can only be associated with at most one view controller at a time! View &lt;UIView: 0x1dd45ae0; frame = (0 0; 320 460); autoresize = W+H; autoresizesSubviews = NO; layer = &lt;CALayer: 0x1dd45b40&gt;&gt; is associated with &lt;RestaurantSearch: 0x1dd28e20&gt;. Clear this association before associating this view with &lt;RestaurantSearch: 0x1f03df70&gt;.' </code></pre> <p>My guess is I'm hooking something up incorrectly, but I'm not sure what. I ctr+dragged from Navigation Controller to my View in the image above. Could this have something to do with it?</p>
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    1. COYou may want to have a look at http://stackoverflow.com/questions/13835724/programming-tabbarcontroller-with-navigation-in-appdelegate/13839852#13839852
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      1. POHow to add a Navigation Controller to a programmed tab bar
      1. USPierre-Francoys Brousseau
    2. COI'm not using a StoryBoard, is it possible to use a Navigation Controller without using the StoryBoard?
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      1. UStomjung
    3. COthe link's solution doesn't use storyboard, it explains how to programatically add a navigation controller to a tabview controller (And I vaguely remember the opposite not being possible?) However, the solution "[self.window setRootViewController:tab];" may be all you need since your error is very descriptive and says exactly what is wrong: you have two view controllers being used by this view!
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      1. POHow to add a Navigation Controller to a programmed tab bar
      1. USPierre-Francoys Brousseau
 

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