NavigationController programmatically

[gbergamo]

Hello (again!)

I have to make a navigation controller programatically.

I do exactly:

create a file (UIViewController)
delete the view
create a window
link the IBOutlet in File's owner like a View
create a UINavigationController
link the window's rootViewController with UINavigationController

In Interface Builder I have this:
[Window]
(rootViewController)---(Navigation Controller)
(View)---(File's Owner)

I make everything in "Interface Builder"

The problem: I have the code:

- (IBAction)addPlace:(id)sender {
	AddPlacePart2Controller *controller = [[AddPlacePart2Controller alloc] initWithNibName:@"AddPlacePart2Controller" bundle:nil];
	[self.navigationController pushViewController:controller animated:YES];	
	[controller release];
}

After press a button and execute this code block, don't happen anything...
No error and no view change...

Someone, please??

[gbergamo]

Originally Posted by gbergamo

Hello (again!)

I have to make a navigation controller programatically.

I do exactly:

create a file (UIViewController)
delete the view
create a window
link the IBOutlet in File's owner like a View
create a UINavigationController
link the window's rootViewController with UINavigationController

In Interface Builder I have this:
[Window]
(rootViewController)---(Navigation Controller)
(View)---(File's Owner)

I make everything in "Interface Builder"

The problem: I have the code:

- (IBAction)addPlace:(id)sender {
	AddPlacePart2Controller *controller = [[AddPlacePart2Controller alloc] initWithNibName:@"AddPlacePart2Controller" bundle:nil];
	[self.navigationController pushViewController:controller animated:YES];	
	[controller release];
}

After press a button and execute this code block, don't happen anything...
No error and no view change...

Someone, please??

No one?

[ngaikwad]

Originally Posted by gbergamo

No one?

why Are you not using the already giving the navigation application in xcode

[dany_dev]

- (IBAction)addPlace:(id)sender {
        NSLog(@"addPlace-Started");
	AddPlacePart2Controller *controller = [[AddPlacePart2Controller alloc] initWithNibName:@"AddPlacePart2Controller" bundle:nil];
	[self.navigationController pushViewController:controller animated:YES];	
	[controller release];
        NSLog(@"self.navigationController:%@",self.navigationController);
}

what you see in console?

[gbergamo]

Originally Posted by dany_dev

- (IBAction)addPlace:(id)sender {
        NSLog(@"addPlace-Started");
	AddPlacePart2Controller *controller = [[AddPlacePart2Controller alloc] initWithNibName:@"AddPlacePart2Controller" bundle:nil];
	[self.navigationController pushViewController:controller animated:YES];	
	[controller release];
        NSLog(@"self.navigationController:%@",self.navigationController);
}

what you see in console?

2011-05-13 17:01:23.036 Unear[4191:207] addPlace-Started
2011-05-13 17:01:23.039 Unear[4191:207] self.navigationController:(null)

You found my problem! There's no navigationController finded by the code.
But.. how resolve this?

thanks

[gbergamo]

Originally Posted by ngaikwad

why Are you not using the already giving the navigation application in xcode

Because, when I open the view addPlace, I open it with a viewController, like another part of app. And this part would be accessed in other place.

[dany_dev]

basically you need to put a reference of navigationController somewhere (in a singleton or in appdelegate) so that you can retrieve it and use...