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POself.NavigationController is nil even if called with initWithRootViewController
 

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  1. POself.NavigationController is nil even if called with initWithRootViewController
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    <p>I can't figure out what am I doing wrong here, I have there are other posts about it but they seem related to a more articulate case, in my situation, everything seems very simple, but still it doesn't work.</p> <p>In my AppDelegate.m</p> <pre><code>- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { MyViewController *vc = [[MyViewController alloc] init]; UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:vc]; // Instantiate the window self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; self.window.rootViewController = navigationController; // Show the window [self.window makeKeyAndVisible]; return YES; } </code></pre> <p>In MyViewController.m (there is no xib file)</p> <pre><code>- (void)viewDidLoad { [super viewDidLoad]; NSLog(@"self.navigationController %@", self.navigationController); } </code></pre> <p>The result of this is:</p> <pre><code>2012-02-26 22:41:19.366 Test [4488:15203] self.navigationController (null) </code></pre> <h1>EDIT</h1> <p>So, I almost figured out but I haven't understood the reason.</p> <p>First of all, to better specify, my view controllers were UITableViewControllers, and the problem apparently relies on the initWithStyle method customization I made:</p> <pre><code>- (id)init { self = [self initWithStyle:UITableViewStyleGrouped]; return self; } - (id)initWithStyle:(UITableViewStyle)style { self = [super initWithStyle:style]; if (self) { [[self tableView] setBackgroundColor:kTableViewBackgroundColor]; [[self tableView] setSeparatorStyle:UITableViewCellSeparatorStyleSingleLine]; } return self; } </code></pre> <p>If I comment out the two rows inside the if, i.e. if I do:</p> <pre><code>- (id)initWithStyle:(UITableViewStyle)style { self = [super initWithStyle:style]; if (self) { //[[self tableView] setBackgroundColor:kTableViewBackgroundColor]; //[[self tableView] setSeparatorStyle:UITableViewCellSeparatorStyleSingleLine]; } return self; } </code></pre> <p>the self.NavigationController gets instantiated properly, otherwise it doesn't. Can someone explain me why this happens?</p>
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    1. USFabrizio Prosperi
    1. USFabrizio Prosperi
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      1. VTUpMod
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