CODEWITHSUNDEEP
iphoneobjective-cuinavigationcontrolleruikit
Chris
Chris

Reputation: 27384

iPhone: pushViewController doesn't work after replacing RootViewController

I wish to place a screen before my curren RootViewController. So far I have made the following modification to MyAppDelegate:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    //with this in the existing RootViewController loads correctly
    //self.window.rootViewController = self.navigationController; 
    self.window.rootViewController = [[[HomePageController alloc] init] autorelease];  
}

I'm not entirely sure how self.navigationController actually gets set to my RootViewController. Either way if I make the modification my HomePageController does load correctly, however I am then unable to push another view on top of it. I have a simple button on HomePageController that performs the following (note that HomePageController should load the currently named RootViewController, HomePageController is the view I want to sit above this):

RootViewController *rvC = [[[RootViewController alloc] initWithNibName:@"RootViewController" bundle:[NSBundle mainBundle]] autorelease];

[self.navigationController pushViewController:rvC animated:YES];

When this code runs nothing happens... I'm not entirely sure why, possibly something related to the navigationController? Maybe I havent put HomePageController above RootViewController correctly or in the best way?

Upvotes: 0

Views: 2600

Answers (1)

gavrix
gavrix

Reputation: 321

You have no navgiationController currently installed. To fix you have to replace 

self.window.rootViewController = [[[HomePageController alloc] init] autorelease];

with

self.window.rootViewController = [[[UINavigatoinController alloc] initWithRootViewController:[[[HomePageController alloc] init] autorelease]] autorelease];

now you have navigationController installed and following

[self.navigationController pushViewController:rvC animated:YES];

will do the right job.

Upvotes: 4

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