UIBarButtonItem not reacting after click

Question

From the rootViewController I navigate to a UIViewController

if (self.contr == nil) {
    ExampleViewController *controller = [[ExampleViewController alloc] 
                                   initWithNibName:@"Example" 
                                   bundle:[NSBundle mainBundle]];
    self.contr = controller;
    [controller release];
}
[self.navigationController presentModalViewController:self.contr animated:YES];

In the UIViewController I have the method

-(IBAction) goBack:(id)sender {
    [self.navigationController dismissModalViewControllerAnimated:YES];
}

I added the signature to the .h file. In the .xib file, I have a UIToolbar with a UIBarButtonItem. I connected the button to the File's Owner - goBack:

Everything appears in the screen, but when I click on the button, goBack isn't called. I also tried to do this programatically instead, but I got the same result - everything appears, but no reaction to the click.

Any ideas why it isn't working?

Edit: I just found out something invisible is over the toolbar. If I click on a specific point (over the toolbar), then goBack: is called. Since I navigated to this screen using presentModelViewController, the navigation bar isn't appearing... but probably it's there and that's what is hiding the tool bar.

Have you tried inserting a call to `NSLog` in the `goBack` method, or to set inside it a breakpoint to see if it is not called or if it has no effect? — marzapower, Jun 09 '11 at 14:16
In a UIBarButtonItem, I can't bind it to an event like in UIButton. I can just set the target and action. However, it should call the method it is binded to, when clicking. — Adriana, Jun 09 '11 at 14:37
Did you try NSLogging in -(IBAction) goBack:(id)sender ? Does the control go there ? — Legolas, Jun 09 '11 at 16:45
I found the problem, but I didn't find a solution: since I'm calling the presentModelViewController, the UINavigationItem in the top doesn't appear. However, it is there and it's over the toolbar I created. Please read "Edit" in my question for more details. — Adriana, Jun 09 '11 at 16:50

score 0 · Answer 1 · answered Jun 15 '12 at 22:57

0

If you are not hitting the breakpoint that means you did not connect them properly in the xib.

answered Jun 15 '12 at 22:57

Chris

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score 0 · Answer 2 · answered Jun 09 '11 at 13:14

0

Have bind your Toolbar with File Owner?
As your UIBarButton is subview of UIToolbar so you have to bind Toolbar with File Owner.

answered Jun 09 '11 at 13:14

dks1725

1,631
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The toolbar is inside the view, and the view is binded to the file's owner. Anyway, I created an IBOutlet UIToolbar and bind it to see if it would solve the problem, but it didn't. – Adriana Jun 09 '11 at 13:40
It's a subclass of UIViewController. – Adriana Jun 09 '11 at 14:24

score 0 · Answer 3 · answered Jun 09 '11 at 14:17

Presenting a modal view controller do not require you to pass through a UINavigationController. I suggest you to change this:

[self.navigationController presentModalViewController:self.contr animated:YES];
[self.navigationController dismissModalViewControllerAnimated:YES];

to this:

[self presentModalViewController:self.contr animated:YES];
[self dismissModalViewControllerAnimated:YES];

Let me know if this helps.

score 0 · Answer 4 · answered Jun 09 '11 at 16:58

0

Try this in the goBack method :

  [self.navigationController popToRootViewControllerAnimated:YES];

answered Jun 09 '11 at 16:58

Legolas

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UIBarButtonItem not reacting after click

4 Answers4